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How to prevent Alzheimer's Disease ?

Research suggests that exercise may play a role in reducing risk for Alzheimers disease. Animal studies show that exercise increases both the number of small blood vessels that supply blood to the brain and the number of connections between nerve cells in older rats and mice. In addition, researchers have found that exercise raises the level of a nerve growth factor (a protein key to brain health) in an area of the brain that is important to memory and learning. Learn more about the benefits of exercise for older adults. For more on specific exercises geared to the needs of older adults, visit Go4Life, the exercise and physical activity campaign from the National Institute on Aging.

How to prevent Alzheimer's Disease ?

A number of studies suggest that eating certain foods may help keep the brain healthyand that others can be harmful. Researchers are looking at whether a healthy dietone that includes lots of fruits, vegetables, and whole grains and is low in fat and added sugarcan help prevent Alzheimers. For more information about healthy eating as you age, see Eating Well As You Get Older.

How to prevent Alzheimer's Disease ?

Keeping the mind sharpthrough social engagement or intellectual stimulationis associated with a lower risk of Alzheimers disease. Activities like working, volunteering, reading, going to lectures, and playing computer and other games are being studied to see if they might help prevent Alzheimers. But we do not know with certainty whether these activities can actually prevent Alzheimers. Find out about things you can do that may keep your brain healthy.

what research (or clinical trials) is being done for Alzheimer's Disease ?

Basic research helps scientists gain new knowledge about a disease process, including how and why it starts and progresses. In Alzheimers disease, basic research seeks to identify the cellular, molecular, and genetic processes that lead to the disease. For example, scientists are studying - the ways in which plaques and tangles damage nerve cells in the brain - the very earliest brain changes in the disease process - the role of Alzheimers risk-factor genes in the development of the disease - how risk-factor genes interact with other genes and lifestyle or environmental factors to affect Alzheimers risk. the ways in which plaques and tangles damage nerve cells in the brain the very earliest brain changes in the disease process the role of Alzheimers risk-factor genes in the development of the disease how risk-factor genes interact with other genes and lifestyle or environmental factors to affect Alzheimers risk. See the latest Alzheimers Disease Progress Report to read about results of NIA-supported Alzheimers research.

what research (or clinical trials) is being done for Alzheimer's Disease ?

Translational research grows out of basic research. It creates new medicines, devices, or behavioral interventions aimed at preventing, diagnosing, or treating a disease. An important goal of Alzheimers translational research is to increase the number and variety of potential new medicines and other interventions that are approved for testing in humans. Scientists also examine medicines approved to treat other diseases to see they might be effective in people with Alzheimers. The most promising interventions are tested in test-tube and animal studies to make sure they are safe and effective. Currently, a number of different substances are under development that may one day be used to treat the symptoms of Alzheimers disease or mild cognitive impairment. See the latest Alzheimers Disease Progress Report to read about results of NIA-supported Alzheimers research.

what research (or clinical trials) is being done for Alzheimer's Disease ?

Clinical research is medical research involving people. It includes clinical studies, which observe and gather information about large groups of people. It also includes clinical trials, which test a medicine, therapy, medical device, or intervention in people to see if it is safe and effective. Clinical trials are the best way to find out whether a particular intervention actually slows, delays, or prevents Alzheimers disease. Trials may compare a potential new treatment with a standard treatment or placebo (mock treatment). Or, they may study whether a certain behavior or condition affects the progress of Alzheimers or the chances of developing it. See the latest Alzheimers Disease Progress Report to read about results of NIA-supported Alzheimers research.

What are the treatments for Alzheimer's Disease ?

People with Alzheimer's disease, those with mild cognitive impairment, those with a family history of Alzheimers, and healthy people with no memory problems who want to help scientists test new treatments may be able to take part in clinical trials. Participants in clinical trials help scientists learn about the brain in healthy aging as well as what happens in Alzheimers. Results of these trials are used to improve prevention and treatment methods. To find out more about Alzheimers clinical trials, talk to your health care provider or contact the Alzheimers Disease Education and Referral (ADEAR) Center at 1-800-438-4380. You can search for studies about a certain topic or in a certain geographic area by going to www.nia.nih.gov/alzheimers/clinical-trials.

What is (are) Shingles ?

Shingles is a painful rash that develops on one side of the face or body. The rash forms blisters that typically scab over in 7 to 10 days and clear up within 2 to 4 weeks. Most commonly, the rash occurs in a single stripe around either the left or the right side of the body. In other cases, the rash occurs on one side of the face. In rare cases (usually among people with weakened immune systems), the rash may be more widespread and look similar to a chickenpox rash. Shingles is very common. Fifty percent of all Americans will have had shingles by the time they are 80. While shingles occurs in people of all ages, it is most common in 60- to 80-year-olds. In fact, one out of every three people 60 years or older will get shingles. (Watch the video to learn more about shingles. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) What Causes Shingles? Shingles is caused by a reactivation of the chickenpox virus. It is distinctive because it affects only one side of the body. The early signs of shingles usually develop in three stages: severe pain or tingling, possibly itchy rash, and blisters that look like chickenpox. The virus that causes shingles is a herpes virus, (Another name for shingles is herpes zoster.) Once you are infected with this kind of virus, it remains in your body for life. It stays inactive until a period when your immunity is down. Shingles and Pain The most common complication of shingles is pain -- a condition called post-herpetic neuralgia (PHN). People with PHN have severe pain in the areas where they had the shingles rash, even after the rash clears up. In most patients, the pain usually clears up in a few weeks or months, but some people can have pain from PHN for years. Persistent pain from shingles is a common symptom in people over 60. In fact, one out of six people older than 60 years who get shingles will have severe pain. As people get older, they are more likely to develop long-term pain as a complication of shingles and the pain is likely to be more severe. Other Complications Shingles may also lead to other serious complications. - Outbreaks that start on the face or eyes can cause vision or hearing problems. Even permanent blindness can result if the cornea of the eye is affected. - Bacterial infection of the open sores can lead to scarring. Outbreaks that start on the face or eyes can cause vision or hearing problems. Even permanent blindness can result if the cornea of the eye is affected. Bacterial infection of the open sores can lead to scarring. - In a very small number of cases, bacteria can cause more serious conditions, including toxic shock syndrome and necrotizing fasciitis, a severe infection that destroys the soft tissue under the skin. - The burning waves of pain, loss of sleep, and interference with even basic life activities can cause serious depression. - In patients with immune deficiency, the rash can be much more extensive than usual and the illness can be complicated by pneumonia. These cases are more serious, but they are rarely fatal. - Very rarely, shingles can also lead to pneumonia, brain inflammation (encephalitis), or death. In a very small number of cases, bacteria can cause more serious conditions, including toxic shock syndrome and necrotizing fasciitis, a severe infection that destroys the soft tissue under the skin. The burning waves of pain, loss of sleep, and interference with even basic life activities can cause serious depression. In patients with immune deficiency, the rash can be much more extensive than usual and the illness can be complicated by pneumonia. These cases are more serious, but they are rarely fatal. Very rarely, shingles can also lead to pneumonia, brain inflammation (encephalitis), or death. Shingles Usually Does Not Return People who develop shingles usually have only one episode in their lifetime. However, a person can have a second or even a third episode. The Shingles Vaccine Adults 60 years old or older should talk to their healthcare professional about getting a one-time dose of the shingles vaccine. The vaccine can reduce your risk of shingles and the long-term pain it can cause. If you have already had shingles or you have a chronic medical condition, you can receive the shingles vaccine. (See more about the shingles vaccine in the chapter Prevention.) Is Shingles Contagious? Shingles cannot be passed from one person to another. However, the virus that causes shingles, the varicella zoster virus, can be spread from a person with active shingles to another person who has never had chickenpox. In such cases, the person exposed to the virus might develop chickenpox, but they would not develop shingles. The virus is spread through direct contact with fluid from the rash blisters caused by shingles. A person with active shingles can spread the virus when the rash is in the blister phase. A person is not infectious before the blisters appear. Once the rash has developed crusts, the person is no longer contagious. Shingles is less contagious than chickenpox and the risk of a person with shingles spreading the virus is low if the rash is covered. If You Have Shingles If you have shingles, - keep the rash covered - avoid touching or scratching the rash - wash your hands often to prevent the spread of varicella zoster virus. keep the rash covered avoid touching or scratching the rash wash your hands often to prevent the spread of varicella zoster virus. Until your rash has developed crusts, avoid contact with - pregnant women who have never had chickenpox or the chickenpox vaccine - premature or low birth weight infants - people with weakened immune systems, such as people receiving immunosuppressive medications or undergoing chemotherapy, organ transplant recipients, and people with human immunodeficiency virus (HIV) infection. pregnant women who have never had chickenpox or the chickenpox vaccine premature or low birth weight infants people with weakened immune systems, such as people receiving immunosuppressive medications or undergoing chemotherapy, organ transplant recipients, and people with human immunodeficiency virus (HIV) infection. If you have not had chickenpox and you come into contact with someone who has shingles, ask your healthcare provider whether you should get a chickenpox vaccination. To learn more, see "What You Need to Know about Shingles and the Shingles Vaccine."

What causes Shingles ?

Caused By A Virus Shingles is caused by a virus called varicella-zoster virus -- the one that gave you chickenpox when you were a child. As you recovered from chickenpox, the sores healed and the other symptoms went away, but the virus remained. It is with you for life. The virus hides out in nerve cells, usually in the spine. But it can become active again. Somehow, the virus gets a signal that your immunity has become weakened. This triggers the reactivation. When the virus becomes active again, it follows a nerve path called a dermatome. The nerve path begins at specific points in the spine, continues around one side of the body, and surfaces at the nerve endings in the skin. The pattern of the rash reflects the location of that nerve path. Risk Factors The leading risk factor for shingles is a history of having had chickenpox. One out of every five people who have had chickenpox is likely to get shingles. Another risk factor is aging. As we age, our natural immunity gradually loses its ability to protect against infection. The shingles virus can take advantage of this and become active again. Conditions that weaken the immune system can also put people at risk for shingles. Shingles is especially dangerous for anyone who has had cancer, radiation treatments for cancer, HIV/AIDS, or a transplant operation. Stress is another factor that may contribute to outbreaks. While stress alone does not cause the outbreaks, shingles often occurs in people who have recently had a stressful event in their lives. Most cases of shingles occur in adults. Only about 5 percent of cases occur in children. With children, immune deficiency is the primary risk factor, but children who had chickenpox before they were one year old may also get shingles before they become adults. There have been studies of adults who had chickenpox as children and were later exposed to children who had chickenpox. Interestingly, that exposure apparently boosted the adult's immunity, which actually helped them avoid getting shingles later in life.

How to prevent Shingles ?

A Vaccine for Adults 60 and Older In May 2006, the U.S. Food and Drug Administration approved a vaccine (Zostavax) to prevent shingles in people age 60 and older. The vaccine is designed to boost the immune system and protect older adults from getting shingles later on. Even if you have had shingles, you can still get the shingles vaccine to help prevent future occurrences of the disease. There is no maximum age for getting the vaccine, and only a single dose is recommended. In a clinical trial involving thousands of adults 60 years old or older, the vaccine reduced the risk of shingles by about half. A One-time Dose To reduce the risk of shingles, adults 60 years old or older should talk to their healthcare professional about getting a one-time dose of the shingles vaccine. Even if the shingles vaccine doesnt prevent you from getting shingles, it can still reduce the chance of having long-term pain. If you have had shingles before, you can still get the shingles vaccine to help prevent future occurrences of the disease. There is no maximum age for getting the vaccine. Side Effects Vaccine side effects are usually mild and temporary. In most cases, shingles vaccine causes no serious side effects. Some people experience mild reactions that last up to a few days, such as headache or redness, soreness, swelling, or itching where the shot was given. When To Get the Vaccine The decision on when to get vaccinated should be made with your health care provider. The shingles vaccine is not recommended if you have active shingles or pain that continues after the rash is gone. Although there is no specific time that you must wait after having shingles before receiving the shingles vaccine, you should generally make sure that the shingles rash has disappeared before getting vaccinated. Where To Get the Vaccine The shingles vaccine is available in doctors offices, pharmacies, workplaces, community health clinics, and health departments. Most private health insurance plans cover recommended vaccines. Check with your insurance provider for details and for a list of vaccine providers. Medicare Part D plans cover shingles vaccine, but there may be costs to you depending on your specific plan. If you do not have health insurance, visit www.healthcare.gov to learn more about health insurance options. Who Should Not Get the Vaccine? You should NOT get the shingles vaccine if you - have an active case of shingles or have pain that continues after the rash is gone - have ever had a life-threatening or severe allergic reaction to gelatin, the antibiotic neomycin, or any other component of the shingles vaccine. Tell your doctor if you have any severe allergies. - have a weakened immune system because of: -- HIV/AIDS or another disease that affects the immune system -- treatment with drugs that affect the immune system, such as steroids -- cancer treatment such as radiation or chemotherapy -- cancer affecting the bone marrow or lymphatic system, such as leukemia or lymphoma. have an active case of shingles or have pain that continues after the rash is gone have ever had a life-threatening or severe allergic reaction to gelatin, the antibiotic neomycin, or any other component of the shingles vaccine. Tell your doctor if you have any severe allergies. have a weakened immune system because of: -- HIV/AIDS or another disease that affects the immune system -- treatment with drugs that affect the immune system, such as steroids -- cancer treatment such as radiation or chemotherapy -- cancer affecting the bone marrow or lymphatic system, such as leukemia or lymphoma. - are pregnant or might be pregnant. are pregnant or might be pregnant. To learn more about the vaccine, see Zostavax: Questions and Answers. Could Vaccines Make Shingles a Rare Disease? The shingles vaccine is basically a stronger version of the chickenpox vaccine, which became available in 1995. The chickenpox shot prevents chickenpox in 70 to 90 percent of those vaccinated, and 95 percent of the rest have only mild symptoms. Millions of children and adults have already received the chickenpox shot. Interestingly, the chickenpox vaccine may reduce the shingles problem. Widespread use of the chickenpox vaccine means that fewer people will get chickenpox in the future. And if people do not get chickenpox, they cannot get shingles. Use of the shingles and chickenpox vaccines may one day make shingles a rare disease. To find out more, visit Shingles Vaccination: What You Need to Know or Shingles Vaccine)

What are the symptoms of Shingles ?

Burning, Itching, Tingling, Then a Rash An outbreak of shingles usually begins with a burning, itching, or tingling sensation on the back, chest, or around the rib cage or waist. It is also common for the face or eye area to be affected. (Watch the video to learn more about one woman's experience with shingles. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) Some people report feeling feverish and weak during the early stages. Usually within 48 to 72 hours, a red, blotchy rash develops on the affected area. The rash erupts into small blisters that look like chickenpox. The blisters seem to arrive in waves over a period of three to five days. Blisters The blisters tend to be clustered in one specific area, rather than being scattered all over the body like chickenpox. The torso or face are the parts most likely to be affected, but on occasion, shingles breaks out in the lower body. The burning sensation in the rash area is often accompanied by shooting pains. After the blisters erupt, the open sores take a week or two to crust over. The sores are usually gone within another two weeks. The pain may diminish somewhat, but it often continues for months -- and can go on for years. Pain Shingles can be quite painful. Many shingles patients say that it was the intense pain that ultimately sent them to their healthcare provider. They often report that the sensation of anything brushing across the inflamed nerve endings on the skin is almost unbearable. Diagnosis is Usually Easy for Healthcare Providers A typical shingles case is easy to diagnose. A healthcare provider might suspect shingles if - the rash is only on one side of the body - the rash erupts along one of the many nerve paths, called dermatomes, that stem from the spine. the rash is only on one side of the body the rash erupts along one of the many nerve paths, called dermatomes, that stem from the spine. A healthcare provider usually confirms a diagnosis of shingles if the person also - reports a sharp, burning pain - has had chickenpox - has blisters that look like chickenpox - is elderly. reports a sharp, burning pain has had chickenpox has blisters that look like chickenpox is elderly. If the Diagnosis Is Unclear Some people go to their healthcare provider because of burning, painful, itchy sensations on one area of skin, but they don't get a rash. If there is no rash, the symptoms can be difficult to diagnose because they can be mistaken for numerous other diseases. In cases where there is no rash or the diagnosis is questionable, healthcare providers can do a blood test. If there is a rash, but it does not resemble the usual shingles outbreak, a healthcare provider can examine skin scrapings from the sores.

What are the treatments for Shingles ?

If You Suspect Shingles If you suspect you have shingles, see your healthcare provider within 72 hours of the first sign of the rash.Treatment with antiviral medications can reduce the severity of the nerve damage and speed healing. But to be effective, they must be started as soon as possible after the rash appears. (Watch the video to learn more about shingles treatments. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) Antivirals and Other Treatments At the early stage of shingles, a healthcare provider will usually prescribe antiviral pills. These antiviral medicines include acyclovir, valacyclovir, or famcyclovir, Your healthcare provider, may also prescribe drugs to relieve pain. Wet compresses, calamine lotion, and colloidal oatmeal baths may help relieve some of the itching. Patients with long-term pain may also be treated with numbing patches, tricyclic antidepressants, and gabapentin, an anti-seizure medication. While these treatments can reduce the symptoms of shingles, they are not a cure. The antivirals do weaken the virus and its effects, but the outbreak still tends to run its course. Good hygiene, including daily bathing, can help prevent bacterial infections. It is a good idea to keep fingernails clean and well-trimmed to reduce scratching. Shingles Vaccine The shingles vaccine is NOT recommended if you have active shingles or pain that continues after the rash is gone. To learn more about the shingles vaccine, see the chapter on "Prevention."

What is (are) Shingles ?

Shingles -- also called varicella-zoster -- is a painful skin disease caused by a reactivation of the chickenpox virus. It is distinctive because it affects only one side of the body. The early signs of shingles usually develop in three stages: severe pain or tingling, possibly itchy rash, and blisters that look like chickenpox. (Watch the video to learn more about shingles. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.)

Who is at risk for Shingles? ?

Shingles is very common. Fifty percent of all Americans will have had shingles by the time they are 80. While shingles occurs in people of all ages, it is most common in 60-to 80-year-olds. In fact, one out of every three people 60 years or older will get shingles.

What are the symptoms of Shingles ?

The first symptoms usually include burning, itching, or tingling sensations on the back, chest, or around the rib cage or waist. In other cases, it can be the face or eye area that is involved. The affected area can become extremely painful. This is when most people go to a healthcare provider to find out what is causing the pain. Some people report feeling feverish and weak during the early stages. Usually within 48 to 72 hours, a red, blotchy rash develops on the affected area. The rash erupts into small blisters that look like chickenpox. The blisters tend to be clustered in one specific area, rather than being scattered all over the body like chickenpox. The torso or face are the parts most likely to be affected, but on occasion, shingles breaks out in the lower body. The burning sensation in the rash area is often accompanied by shooting pains. After the blisters erupt, the open sores take a week or two to crust over. The sores are usually gone within another two weeks. The pain may diminish somewhat, but it often continues for months -- and can go on for years.

How to diagnose Shingles ?

A typical shingles case is easy to diagnose. A healthcare provider might suspect shingles if - the rash is only on one side of the body - the rash erupts along one of the many nerve paths, called dermatomes, that stem from the spine. the rash is only on one side of the body the rash erupts along one of the many nerve paths, called dermatomes, that stem from the spine. A healthcare provider usually confirms a diagnosis of shingles if the person also - reports a sharp, burning pain - has had chickenpox - has blisters that look like chickenpox - is elderly. reports a sharp, burning pain has had chickenpox has blisters that look like chickenpox is elderly. Other symptoms of shingles can include - fever - headache - chills - upset stomach. fever headache chills upset stomach. Some people go to their healthcare provider because of burning, painful, itchy sensations on one area of skin, but they don't get a rash. If there is no rash, the symptoms can be difficult to diagnose because they can be mistaken for numerous other diseases. In cases where there is no rash or the diagnosis is questionable, healthcare providers can do a blood test. If there is a rash, but it does not resemble the usual shingles outbreak, a healthcare provider can examine skin scrapings from the sores.

What are the complications of Shingles ?

The most common complication of shingles is pain -- a condition called post-herpetic neuralgia (PHN). People with PHN have severe pain in the areas where they had the shingles rash, even after the rash clears up. In most patients, the pain usually clears up in a few weeks or months, but some people can have pain from PHN for years. Shingles may also lead to other serious complications. - Outbreaks that start on the face or eyes can cause vision or hearing problems. Even permanent blindness can result if the cornea of the eye is affected. - Bacterial infection of the open sores can lead to scarring. - In a very small number of cases, bacteria can cause more serious conditions, including toxic shock syndrome and necrotizing fasciitis, a severe infection that destroys the soft tissue under the skin. - The burning waves of pain, loss of sleep, and interference with even basic life activities can cause serious depression. - In patients with immune deficiency, the rash can be much more extensive than usual and the illness can be complicated by pneumonia. These cases are more serious, but they are rarely fatal. - Very rarely, shingles can also lead to pneumonia, brain inflammation (encephalitis), or death. Outbreaks that start on the face or eyes can cause vision or hearing problems. Even permanent blindness can result if the cornea of the eye is affected. Bacterial infection of the open sores can lead to scarring. In a very small number of cases, bacteria can cause more serious conditions, including toxic shock syndrome and necrotizing fasciitis, a severe infection that destroys the soft tissue under the skin. The burning waves of pain, loss of sleep, and interference with even basic life activities can cause serious depression. In patients with immune deficiency, the rash can be much more extensive than usual and the illness can be complicated by pneumonia. These cases are more serious, but they are rarely fatal. Very rarely, shingles can also lead to pneumonia, brain inflammation (encephalitis), or death.

What causes Shingles ?

Shingles is caused by a virus called the varicella-zoster virus -- the one that gave you chickenpox when you were a child. As you recovered from chickenpox, the sores and other symptoms healed, but the virus remained. It is with you for life. Researchers know that the varicella-zoster virus behaves differently from other viruses, such as the flu virus. Our immune system usually kills off invading germs, but it cannot completely knock out this type of virus. The virus just becomes inactive. The virus can become active again, especially in the later years of your life when your immune system doesn't protect you as well from infections. The virus travels from the spinal nerve cells and follows a nerve path out to the skin. Nerve endings in the skin become inflamed and erupt in a very painful rash. Healthcare providers cannot always be sure what the trigger is in each case. They don't know why the virus reactivates in one person with these risk factors, while in another person with the same risk factors, it does not.

Who is at risk for Shingles? ?

The leading risk factor for shingles is a history of having had chickenpox. One out of every five people who have had chickenpox is likely to get shingles. Another risk factor is aging. As we age, our natural immunity gradually loses its ability to protect against infection. The shingles virus can take advantage of this and become active again. Conditions that weaken the immune system can also put people at risk for shingles. Shingles is especially dangerous for anyone who has had cancer, radiation treatments for cancer, HIV/AIDS, or a transplant operation. Our immune system gradually loses strength as we mature. After people reach 50, the body is not able to fight off infections as easily as it once did.

What is (are) Shingles ?

"A burning, tingly feeling is what I noticed first," said an elderly woman describing her symptoms. "I looked in the mirror, and there was a rash on just one side of my back. Then the shooting pains started. Days later, I could hardly stand to have my clothes touching me. I thought maybe I had hives or poison ivy," she said, "until I went to the doctor."

What are the symptoms of Shingles ?

A week or two after the blisters erupt, the oozing sores will begin to crust over. The sores are usually gone after another two weeks. The pain usually decreases over the next few weeks, but some patients may have pain for months -- sometimes, for years.

How to prevent Shingles ?

Yes. In May 2006, the U.S. Food and Drug Administration approved a vaccine to prevent shingles in people age 60 and older. The vaccine, called Zostavax, is designed to boost the immune system and protect older adults from getting shingles later on. Even if you have had shingles, you can still get the shingles vaccine to help prevent future occurrences of the disease. There is no maximum age for getting the vaccine, and only a single dose is recommended. The shingles vaccine is NOT recommended if you have active shingles or pain that continues after the rash is gone. (Watch the video to learn more about shingles treatments. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) The shingles vaccine is available in pharmacies and doctor's offices. Talk with your healthcare professional if you have questions about the vaccine. To learn more about the vaccine, see "Zostavax: Questions and Answers."

What are the treatments for Shingles ?

Treatment with antiviral medications can reduce the severity of the nerve damage and speed healing. But to be effective, they must be started as soon as possible after the rash appears. If you suspect you have shingles, see your healthcare provider within 72 hours of the first sign of the rash. At the early stage of shingles, a healthcare provider will usually prescribe antiviral pills. These antiviral medicines include acyclovir, valacyclovir, or famcyclovir, Your healthcare provider, may also prescribe drugs to relieve pain. Wet compresses, calamine lotion, and colloidal oatmeal baths may help relieve some of the itching. Patients with long-term pain may also be treated with numbing patches, tricyclic antidepressants, and gabapentin, an anti-seizure medication. The shingles vaccine is not recommended if you have active shingles or pain that continues after the rash is gone. While these treatments can reduce the symptoms of shingles, they are not a cure. The antivirals do weaken the virus and its effects, but the outbreak still tends to run its course. Good hygiene, including daily bathing, can help prevent bacterial infections. It is a good idea to keep fingernails clean and well-trimmed to reduce scratching.

What is (are) Low Vision ?

Everyday Tasks Are Challenging Low vision means that even with regular glasses, contact lenses, medicine, or surgery, people find everyday tasks difficult to do. Reading the mail, shopping, cooking, seeing the TV, and writing can seem challenging. Millions of Americans lose some of their vision every year. Irreversible vision loss is most common among people over age 65. (Watch the video to learn more about low vision. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) Not a Normal Part of Aging Losing vision is not just part of getting older. Some normal changes occur as we get older. However, these changes usually don't lead to low vision.

What causes Low Vision ?

Eye Diseases and Health Conditions Most people develop low vision because of eye diseases and health conditions like macular degeneration, cataracts, glaucoma, and diabetes. Your eye care professional can tell the difference between normal changes in the aging eye and those caused by eye diseases. Injuries and Birth Defects A few people develop vision loss after eye injuries or from birth defects. Although vision that is lost usually cannot be restored, many people can make the most of the vision they have. How a Scene Looks to People With Normal and Low Vision Scene as viewed by a person with normal vision. Scene as viewed by a person with diabetic retinopathy. Scene as viewed by a person with age-related macular degeneration. Scene as viewed by a person with glaucoma. Scene as viewed by a person with cataracts.

What are the symptoms of Low Vision ?

There are many signs that can signal vision loss. For example, even with your regular glasses, do you have difficulty - recognizing faces of friends and relatives? - doing things that require you to see well up close, such as reading, cooking, sewing, fixing things around the house, or picking out and matching the color of your clothes? - doing things at work or home because lights seem dimmer than they used to? - reading street and bus signs or the names of stores? recognizing faces of friends and relatives? doing things that require you to see well up close, such as reading, cooking, sewing, fixing things around the house, or picking out and matching the color of your clothes? doing things at work or home because lights seem dimmer than they used to? reading street and bus signs or the names of stores? Early Diagnosis Is Important Vision changes like these could be early warning signs of eye disease. People over age 60 should have an eye exam through dilated pupils at least once a year. Usually, the earlier your problem is diagnosed, the better your chances of undergoing successful treatment and keeping your remaining vision. Regular dilated eye exams should be part of your routine health care. However, if you think your vision has recently changed, you should see your eye care professional as soon as possible.

What is (are) Low Vision ?

Low vision is a visual impairment, not correctable by standard glasses, contact lenses, medicine, or surgery, that interferes with a person's ability to perform everyday activities. (Watch the video to learn more about low vision. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.)

What causes Low Vision ?

Low vision can result from a variety of diseases, disorders, and injuries that affect the eye. Many people with low vision have age-related macular degeneration, cataracts, glaucoma, or diabetic retinopathy. Age-related macular degeneration accounts for almost 45 percent of all cases of low vision.

Who is at risk for Low Vision? ?

People age 60 and older, as well as African Americans and Hispanics over age 45, are at higher risk. African Americans and Hispanics are at higher risk for low vision because they are at higher risk for developing diabetes and diabetic retinopathy, and African Americans are at a higher risk for developing glaucoma.

What is (are) Low Vision ?

Many agencies and organizations in the community provide assistance and information to people who have low vision and to their families and caregivers. State agencies for the blind and visually impaired can make referrals to a variety of organizations that provide assistance. Such services include vision rehabilitation, recreation, counseling, and job training or placement. For assistance in finding agencies and organizations, contact: National Eye Institute National Institutes of Health 2020 Vision Place Bethesda, MD 20892-3655 Phone: 301-496-5248 E-mail: 2020@nei.nih.gov Website: http://www.nei.nih.gov/

What is (are) Parkinson's Disease ?

A Brain Disorder Parkinson's disease is a brain disorder that leads to shaking, stiffness, and difficulty with walking, balance, and coordination. It affects about half a million people in the United States although the numbers may be much higher. The average age of onset is 60 years, and the risk of developing Parkinson's goes up with age. Parkinson's disease was first described in 1817 by James Parkinson, a British doctor who published a paper on what he called "the shaking palsy." In this paper, he described the major symptoms of the disease that would later bear his name. Four Main Symptoms Parkinson's disease belongs to a group of neurological conditions called movement disorders. The four main symptoms of Parkinson's are: - tremor, or trembling in hands, arms, legs, jaw, or head - rigidity, or stiffness of the limbs and trunk - bradykinesia, or slowness of movement - postural instability, or impaired balance. tremor, or trembling in hands, arms, legs, jaw, or head rigidity, or stiffness of the limbs and trunk bradykinesia, or slowness of movement postural instability, or impaired balance. Parkinson's symptoms usually begin gradually and get worse over time. As the symptoms become more severe, people with the disorder may have difficulty walking, talking, or completing other simple tasks. They also experience non-motor, or movement, symptoms including mental and behavioral changes, sleep problems, depression, memory difficulties, and fatigue. Parkinson's disease not only affects the brain, but the entire body. While the brain involvement is responsible for the core features, other affected locations contribute to the complicated picture of Parkinson's. Parkinson's disease is both chronic, meaning it lasts for a long time, and progressive, meaning its symptoms grow worse over time. It is not contagious. Diagnosis Can Be Difficult About 60,000 Americans are diagnosed with Parkinson's disease each year. However, it's difficult to know exactly how many have it because many people in the early stages of the disease think their symptoms are due to normal aging and do not seek help from a doctor. Also, diagnosis is sometimes difficult because there are no medical tests that can diagnose the disease with certainty and because other conditions may produce symptoms of Parkinson's. For example, people with Parkinson's may sometimes be told by their doctors that they have other disorders, and people with diseases similar to Parkinson's may be incorrectly diagnosed as having Parkinson's. A persons good response to the drug levodopa may support the diagnosis. Levodopa is the main therapy for Parkinsons disease. Who Is at Risk? Both men and women can have Parkinsons disease. However, the disease affects about 50 percent more men than women. While the disease is more common in developed countries, studies also have found an increased risk of Parkinson's disease in people who live in rural areas and in those who work in certain professions, suggesting that environmental factors may play a role in the disorder. Researchers are focusing on additional risk factors for Parkinsons disease. One clear risk factor for Parkinson's is age. The average age of onset is 60 years and the risk rises significantly with advancing age. However, about 5 to 10 percent of people with Parkinson's have "early-onset" disease which begins before the age of 50. Early-onset forms of Parkinson's are often inherited, though not always, and some have been linked to specific gene mutations. Juvenile Parkinsonism In very rare cases, parkinsonian symptoms may appear in people before the age of 20. This condition is called juvenile parkinsonism. It is most commonly seen in Japan but has been found in other countries as well. It usually begins with dystonia (sustained muscle contractions causing twisting movements) and bradykinesia (slowness of movement), and the symptoms often improve with levodopa medication. Juvenile parkinsonism often runs in families and is sometimes linked to a mutated gene. Some Cases Are Inherited Evidence suggests that, in some cases, Parkinsons disease may be inherited. An estimated 15 to 25 percent of people with Parkinson's have a known relative with the disease. People with one or more close relatives who have Parkinson's have an increased risk of developing the disease themselves, but the total risk is still just 2 to 5 percent unless the family has a known gene mutation for the disease. A gene mutation is a change or alteration in the DNA or genetic material that makes up a gene. Researchers have discovered several genes that are linked to Parkinson's disease. The first to be identified was alpha-synuclein or SNCA. Inherited cases of Parkinsons disease are caused by mutations in the LRRK2, PARK2 or parkin, PARK7 or DJ-1, PINK1, or SNCA genes, or by mutations in genes that have not yet been identified.

What causes Parkinson's Disease ?

A Shortage of Dopamine Parkinson's disease occurs when nerve cells, or neurons, in an area of the brain that controls movement become impaired and/or die. Normally, these neurons produce an important brain chemical known as dopamine, but when the neurons die or become impaired, they produce less dopamine. This shortage of dopamine causes the movement problems of people with Parkinson's. Dopamine is a chemical messenger, or neurotransmitter. Dopamine is responsible for transmitting signals between the substantia nigra and multiple brain regions. The connection between the substantia nigra and the corpus striatum is critical to produce smooth, purposeful movement. Loss of dopamine in this circuit results in abnormal nerve-firing patterns within the brain that cause impaired movement. Loss of Norepinephrine People with Parkinson's also have loss of the nerve endings that produce the neurotransmitter norepinephrine. Norepinephrine, which is closely related to dopamine, is the main chemical messenger of the sympathetic nervous system. The sympathetic nervous system controls many automatic functions of the body, such as heart rate and blood pressure. The loss of norepinephrine might help explain several of the non-movement features of Parkinson's, such as fatigue, irregular blood pressure, decreased gastric motility or movement of food through the digestive tract, and postural hypotension. Postural hypotension is a sudden drop in blood pressure when a person stands up from a sitting or lying-down position. It may cause dizziness, lightheadedness, and in some cases, loss of balance or fainting. Lewy Bodies in Brain Cells Many brain cells of people with Parkinson's contain Lewy bodies. Lewy bodies are unusual deposits or clumps of the brain protein alpha-synuclein, along with other proteins, which are seen upon microscopic examination of the brain. Researchers do not yet know why Lewy bodies form or what role they play in the development of Parkinson's. The clumps may prevent the cell from functioning normally, or they may actually be helpful, perhaps by keeping harmful proteins "locked up" so the cells can function. Genetic Mutations Although some cases of Parkinson's appear to be hereditary, and a few can be traced to specific genetic mutations, most cases are sporadic. Sporadic means the disease occurs randomly and does not seem to run in families. Many researchers now believe that Parkinson's disease results from a combination of genetic and environmental factors. Scientists have identified several genetic mutations associated with Parkinson's including mutations in the alpha-synuclein gene. They think that many more genes may be linked to the disorder. Studying the genes responsible for inherited cases of Parkinson's can help researchers understand both inherited and sporadic cases. The same genes and proteins that are altered in inherited cases may also be altered in sporadic cases by environmental toxins or other factors. Researchers also hope that discovering genes will help identify new ways of treating Parkinson's. Environmental Toxins Although researchers increasingly recognize the importance of genetics in Parkinson's disease, most believe environmental exposures increase a person's risk of developing the disease. Even in inherited cases, exposure to toxins or other environmental factors may influence when symptoms of the disease appear or how the disease progresses. There are a number of toxins that can cause parkinsonian symptoms in humans. Researchers are pursuing the question of whether pesticides and other environmental factors not yet identified also may cause Parkinson's disease. Viruses are another possible environmental trigger for Parkinson's. Mitochondria and Free Radicals Research suggests that mitochondria may play a role in the development of Parkinson's disease. Mitochondria are the energy-producing components of the cell and are major sources of free radicals. Free radicals are molecules that damage membranes, proteins, DNA, and other parts of the cell. This damage is called oxidative stress. Changes to brain cells caused by oxidative stress, including free radical damage to DNA, proteins, and fats, have been found in people with Parkinson's. Clinical studies now underway test whether agents thought to improve energy metabolism and decrease oxidative stress slow the progression of Parkinson's disease. Recent evidence suggests that mutations in genes linked to Parkinsons disease result in mitochondrial dysfunction. Buildup of Harmful Proteins Other research suggests that the cell's protein disposal system may fail in people with Parkinson's, causing proteins like alpha-synuclein to build up to harmful levels and trigger premature cell death. Additional studies have found that clumps of protein that develop inside brain cells of people with Parkinson's may contribute to the death of nerve cells, or neurons. However, the exact role of the protein deposits remains unknown. These studies also found that inflammation, because of protein accumulation, toxins or other factors, may play a role in the disease. However, the exact role of the protein deposits remains unknown. Researchers are exploring the possibility of vaccine development to decrease or prevent the accumulation of alpha-synuclein. While mitochondrial dysfunction, oxidative stress, inflammation, and many other cellular processes may contribute to Parkinson's disease, scientists still do not know what causes cells that produce dopamine to die. Genes Linked to Parkinsons Researchers have discovered several genes that are linked to Parkinson's disease. The first to be identified was alpha-synuclein or SNCA . Studies have found that Lewy bodies from people with the sporadic form of Parkinson's contain clumps of alpha-synuclein protein. This discovery revealed a possible link between hereditary and sporadic forms of the disease. Other genes linked to Parkinson's include PARK2, PARK7, PINK1, and LRRK2. PARK2, PARK7, and PINK1 cause rare, early-onset forms of the disease. Mutations in the LRRK2 gene are common in specific populations, including in people with Parkinson's in North Africa. Researchers are continuing to study the normal functions and interactions of these genes in order to find clues about how Parkinson's develops. They also have identified a number of other genes and chromosome regions that may play a role in Parkinson's, but the nature of these links is not yet clear. Whole genome wide association studies, or GWAS, of thousands of people with Parkinson's disease are now underway to find gene variants that allow for an increased risk of developing Parkinson's but are not necessarily causes of this disorder by themselves. A recent international study found that two genes containing mutations known to cause rare hereditary forms of Parkinsons disease are also associated with the more common sporadic form of the disease. This finding came from a GWAS which looked at DNA samples of European people who had Parkinsons disease and from those who did not have the disorder.

What are the symptoms of Parkinson's Disease ?

Parkinson's disease does not affect everyone the same way. Symptoms of the disorder and the rate of progression differ among people with the disease. Sometimes people dismiss early symptoms of Parkinson's as the effects of normal aging. There are no medical tests to definitively diagnose the disease, so it can be difficult to diagnose accurately. Early Symptoms Early symptoms of Parkinson's disease are subtle and occur gradually. For example, affected people may feel mild tremors or have difficulty getting out of a chair. They may notice that they speak too softly or that their handwriting is slow and looks cramped or small. This very early period may last a long time before the more classic and obvious symptoms appear. Friends or family members may be the first to notice changes in someone with early Parkinson's. They may see that the person's face lacks expression and animation, a condition known as "masked face," or that the person does not move an arm or leg normally. They also may notice that the person seems stiff, unsteady, or unusually slow. As the Disease Progresses As the disease progresses, symptoms may begin to interfere with daily activities. The shaking or tremor may make it difficult to hold utensils steady or read a newspaper. Tremor is usually the symptom that causes people to seek medical help. People with Parkinson's often develop a so-called parkinsonian gait that includes a tendency to lean forward, small quick steps as if hurrying forward (called festination), and reduced swinging of the arms. They also may have trouble initiating or continuing movement, which is known as freezing. Symptoms often begin on one side of the body or even in one limb on one side of the body. As the disease progresses, it eventually affects both sides. However, the symptoms may still be more severe on one side than on the other. Four Primary Symptoms The four primary symptoms of Parkinson's are tremor, rigidity, slowness of movement (bradykinesia), and impaired balance (postural instability). - Tremor often begins in a hand, although sometimes a foot or the jaw is affected first. It is most obvious when the hand is at rest or when a person is under stress. It usually disappears during sleep or improves with a deliberate movement. - Rigidity, or a resistance to movement, affects most people with Parkinson's. It becomes obvious when another person tries to move the individual's arm, such as during a neurological examination. The arm will move only in ratchet-like or short, jerky movements known as "cogwheel" rigidity. - Bradykinesia, or the slowing down and loss of spontaneous and automatic movement, is particularly frustrating because it may make simple tasks somewhat difficult. Activities once performed quickly and easily, such as washing or dressing, may take several hours. - Postural instability, or impaired balance, causes people with Parkinson's to fall easily. They also may develop a stooped posture with a bowed head and droopy shoulders. Tremor often begins in a hand, although sometimes a foot or the jaw is affected first. It is most obvious when the hand is at rest or when a person is under stress. It usually disappears during sleep or improves with a deliberate movement. Rigidity, or a resistance to movement, affects most people with Parkinson's. It becomes obvious when another person tries to move the individual's arm, such as during a neurological examination. The arm will move only in ratchet-like or short, jerky movements known as "cogwheel" rigidity. Bradykinesia, or the slowing down and loss of spontaneous and automatic movement, is particularly frustrating because it may make simple tasks somewhat difficult. Activities once performed quickly and easily, such as washing or dressing, may take several hours. Postural instability, or impaired balance, causes people with Parkinson's to fall easily. They also may develop a stooped posture with a bowed head and droopy shoulders. Other Symptoms A number of other symptoms may accompany Parkinson's disease. Some are minor; others are not. Many can be treated with medication or physical therapy. No one can predict which symptoms will affect an individual person, and the intensity of the symptoms varies from person to person. Many people note that prior to experiencing motor problems of stiffness and tremor, they had symptoms of a sleep disorder, constipation, decreased ability to smell, and restless legs. Other symptoms include - depression - emotional changes - difficulty swallowing and chewing - speech changes - urinary problems or constipation - skin problems, sleep problems - dementia or other cognitive problems - orthostatic hypotension (a sudden drop in blood pressure when standing up from a sitting or lying down position) - muscle cramps and dystonia (twisting and repetitive movements) - pain - fatigue and loss of energy - sexual dysfunction. depression emotional changes difficulty swallowing and chewing speech changes urinary problems or constipation skin problems, sleep problems dementia or other cognitive problems orthostatic hypotension (a sudden drop in blood pressure when standing up from a sitting or lying down position) muscle cramps and dystonia (twisting and repetitive movements) pain fatigue and loss of energy sexual dysfunction. A number of disorders can cause symptoms similar to those of Parkinson's disease. People with Parkinson's-like symptoms that result from other causes are sometimes said to have parkinsonism. While these disorders initially may be misdiagnosed as Parkinson's, certain medical tests, as well as response to drug treatment, may help to distinguish them from Parkinson's. Diagnosis Can Be Difficult There are currently no blood, or laboratory tests to diagnose sporadic Parkinson's disease. Diagnosis is based on a person's medical history and a neurological examination, but the disease can be difficult to diagnose accurately. Early signs and symptoms of Parkinson's may sometimes be dismissed as the effects of normal aging. A doctor may need to observe the person for some time until it is clear that the symptoms are consistently present. Improvement after initiating medication is another important hallmark of Parkinson's disease. Doctors may sometimes request brain scans or laboratory tests to rule out other diseases. However, computed tomography (CT) and magnetic resonance imaging (MRI) brain scans of people with Parkinson's usually appear normal. Recently, the FDA (Food and Drug Administration) has approved an imaging technique called DaTscan, which may help to increase accuracy of the diagnosis of Parkinsons disease. Since many other diseases have similar features but require different treatments, it is very important to make an exact diagnosis as soon as possible to ensure proper treatment.

What are the treatments for Parkinson's Disease ?

Deep Brain Stimulation Deep brain stimulation, or DBS, is a surgical procedure used to treat a variety of disabling disorders. It is most commonly used to treat the debilitating symptoms of Parkinsons disease. Deep brain stimulation uses an electrode surgically implanted into part of the brain. The electrodes are connected by a wire under the skin to a small electrical device called a pulse generator that is implanted in the chest. The pulse generator and electrodes painlessly stimulate the brain in a way that helps to stop many of the symptoms of Parkinson's such as tremor, bradykinesia, and rigidity. DBS is primarily used to stimulate one of three brain regions: the subthalamic nucleus, the globus pallidus, or the thalamus. Researchers are exploring optimal generator settings for DBS, whether DBS of other brain regions will also improve symptoms of Parkinsons disease, and also whether DBS may slow disease progression. Deep brain stimulation usually reduces the need for levodopa and related drugs, which in turn decreases dyskinesias and other side effects. It also helps to relieve on-off fluctuation of symptoms. People who respond well to treatment with levodopa tend to respond well to DBS. Unfortunately, older people who have only a partial response to levodopa may not improve with DBS. Complementary and Supportive Therapies A wide variety of complementary and supportive therapies may be used for Parkinson's disease. Among these therapies are standard physical, occupational, and speech therapies, which help with gait and voice disorders, tremors and rigidity, and decline in mental functions. Other supportive therapies include diet and exercise. Diet At this time there are no specific vitamins, minerals, or other nutrients that have any proven therapeutic value in Parkinson's disease. Some early reports have suggested that dietary supplements might protect against Parkinson's. Also, a preliminary clinical study of a supplement called coenzyme Q10 suggested that large doses of this substance might slow disease progression in people with early-stage Parkinson's. This supplement is now being tested in a large clinical trial. Other studies are being conducted to find out if caffeine, antioxidants, nicotine, and other dietary factors may help prevent or treat the disease. While there is currently no proof that any specific dietary factor is beneficial, a normal, healthy diet can promote overall well-being for people with Parkinson's disease, just as it would for anyone else. A high protein meal, however, may limit levodopa's effectiveness because for a time afterwards less levodopa passes through the blood-brain barrier. Exercise Exercise can help people with Parkinson's improve their mobility and flexibility. It can also improve their emotional well-being. Exercise may improve the brain's dopamine production or increase levels of beneficial compounds called neurotrophic factors in the brain. Other Therapies Other complementary therapies include massage therapy, yoga, tai chi, hypnosis, acupuncture, and the Alexander technique, which improves posture and muscle activity. There have been limited studies suggesting mild benefits from some of these therapies, but they do not slow Parkinson's disease and to date there is no convincing evidence that they help. However, this remains an active area of investigation.

what research (or clinical trials) is being done for Parkinson's Disease ?

In recent years, research on Parkinson's has advanced to the point that halting the progression of the disease, restoring lost function, and even preventing the disease are all considered realistic goals. While the goal of preventing Parkinson's disease may take years to achieve, researchers are making great progress in understanding and treating it. Genetics Research One of the most exciting areas of Parkinson's research is genetics. Studying the genes responsible for inherited cases can help researchers understand both inherited and sporadic cases of the disease. Identifying gene defects can also help researchers - understand how Parkinson's occurs - develop animal models that accurately mimic the death of nerve cells in humans - identify new approaches to drug therapy - improve diagnosis. understand how Parkinson's occurs develop animal models that accurately mimic the death of nerve cells in humans identify new approaches to drug therapy improve diagnosis. Researchers funded by the National Institute of Neurological Disorders and Stroke are gathering information and DNA samples from hundreds of families with members who have Parkinson's and are conducting large-scale studies to identify gene variants that are associated with increased risk of developing the disease. They are also comparing gene activity in Parkinson's with gene activity in similar diseases such as progressive supranuclear palsy. In addition to identifying new genes for Parkinson's disease, researchers are trying to learn about the function of genes known to be associated with the disease, and about how gene mutations cause disease. Effects of Environmental Toxins Scientists continue to study environmental toxins such as pesticides and herbicides that can cause Parkinson's symptoms in animals. They have found that exposing rodents to the pesticide rotenone and several other agricultural chemicals can cause cellular and behavioral changes that mimic those seen in Parkinson's. Role of Lewy Bodies Other studies focus on how Lewy bodies form and what role they play in Parkinson's disease. Some studies suggest that Lewy bodies are a byproduct of a breakdown that occurs within nerve cells, while others indicate that Lewy bodies are protective, helping neurons "lock away" abnormal molecules that might otherwise be harmful. Identifying Biomarkers Biomarkers for Parkinson's -- measurable characteristics that can reveal whether the disease is developing or progressing -- are another focus of research. Such biomarkers could help doctors detect the disease before symptoms appear and improve diagnosis of the disease. They also would show if medications and other types of therapy have a positive or negative effect on the course of the disease. The National Disorders of Neurological Disorders and Stroke has developed an initiative, the Parkinsons Disease Biomarkers Identification Network (PD-BIN), designed specifically to address these questions and to discover and validate biomarkers for Parkinsons disease. Transcranial Therapies Researchers are conducting many studies of new or improved therapies for Parkinson's disease. Studies are testing whether transcranial electrical polarization (TEP) or transcranial magnetic stimulation (TMS) can reduce the symptoms of the disease. In TEP, electrodes placed on the scalp are used to generate an electrical current that modifies signals in the brain's cortex. In TMS, an insulated coil of wire on the scalp is used to generate a brief electrical current. Drug Discovery A variety of new drug treatments for Parkinson's disease are in clinical trials. Several MAO-B inhibitors including selegiline, lazabemide, and rasagiline, are being tested to determine if they have neuroprotective effects in people with Parkinsons disease. The National Institute of Neurological Disorders and Stroke has launched a broad effort to find drugs to slow the progression of Parkinson's disease, called NET-PD or NIH Exploratory Trials in Parkinson's Disease. The first studies tested several compounds; one of these, creatine, is now being evaluated in a larger clinical trial. The NET-PD investigators are testing a highly purified form of creatine, a nutritional supplement, to find out if it slows the decline seen in people with Parkinson's. Creatine is a widely used dietary supplement thought to improve exercise performance. Cellular energy is stored in a chemical bond between creatine and a phosphate. More recently, NET-PD has initiated pilot studies to test pioglitazone, a drug that has been shown to stimulate mitochondrial function. Because mitochondrial function may be less active in Parkinsons disease, this drug may protect vulnerable dopamine neurons by boosting mitochondrial function. Cell Implantation Another potential approach to treating Parkinson's disease is to implant cells to replace those lost in the disease. Starting in the 1990s, researchers conducting a controlled clinical trial of fetal tissue implants tried to replace lost dopamine-producing nerve cells with healthy ones from fetal tissue in order to improve movement and the response to medications. While many of the implanted cells survived in the brain and produced dopamine, this therapy was associated with only modest functional improvements, mostly in patients under the age of 60. Some of the people who received the transplants developed disabling dyskinesias that could not be relieved by reducing anti-parkinsonian medications. Stem Cells Another type of cell therapy involves stem cells. Some stem cells derived from embryos can develop into any kind of cell in the body, while others, called progenitor cells, are less flexible. Researchers are developing methods to improve the number of dopamine-producing cells that can be grown from embryonic stem cells in culture. Other researchers are also exploring whether stem cells from adult brains might be useful in treating Parkinson's disease. Recent studies suggest that some adult cells from skin can be reprogrammed to an embryonic-like state, resulting in induced pluripotent stem cells (iPSC) that may someday be used for treatment of Parkinsons. In addition, development and characterization of cells from people with sporadic or inherited Parkinsons may reveal information about cellular mechanisms of disease and identify targets for drug development. Gene Therapy A number of early clinical trials are now underway to test whether gene therapy can improve Parkinson's disease. Genes which are found to improve cellular function in models of Parkinson's are inserted into modified viruses. The genetically engineered viruses are then injected into the brains of people with Parkinson's disease. Clinical studies have focused on the therapeutic potential of neurotrophic factors, including GDNF and neurturin, and enzymes that produce dopamine. These trials will test whether the viruses, by lending to the production of the protective gene product, improve symptoms of Parkinson's over time. The National Institute of Neurological Disorders and Stroke also supports the Morris K. Udall Centers of Excellence for Parkinson's Disease Research program . These Centers, located across the USA, study cellular mechanisms underlying Parkinsons disease, identify and characterize disease-associated genes, and discover and develop potential therapeutic targets. The Centers' multidisciplinary research environment allows scientists to take advantage of new discoveries in the basic, translational and clinical sciences that could lead to clinical advances for Parkinsons disease.

What is (are) Parkinson's Disease ?

Parkinson's disease is a brain disorder that leads to shaking, stiffness, and difficulty with walking, balance, and coordination. It currently affects about half a million people in the United States, although the numbers may be much higher. Parkinson's disease is both chronic, meaning it lasts for a long time, and progressive, meaning its symptoms grow worse over time. It is not contagious.

What are the symptoms of Parkinson's Disease ?

Parkinson's belongs to a group of neurological conditions called movement disorders. The four main symptoms of Parkinson's disease are: - tremor, or trembling in hands, arms, legs, jaw, or head - rigidity, or stiffness of the limbs and trunk - bradykinesia, or slowness of movement - postural instability, or impaired balance. tremor, or trembling in hands, arms, legs, jaw, or head rigidity, or stiffness of the limbs and trunk bradykinesia, or slowness of movement postural instability, or impaired balance. Other symptoms include depression, emotional changes, difficulty swallowing, speech changes, urinary problems, sleep problems, and dementia and other cognitive problems. Parkinson's symptoms usually begin gradually and get worse over time. As the symptoms become more severe, people with the disorder may have difficulty walking, talking, or completing other simple tasks. They also experience non-motor, or movement, symptoms including mental and behavioral changes, sleep problems, depression, memory difficulties, and fatigue. Parkinson's disease not only affects the brain, but the entire body. While the brain involvement is responsible for the core features, other affected locations contribute to the complicated picture of Parkinson's.

Who is at risk for Parkinson's Disease? ?

About 60,000 Americans are diagnosed with Parkinson's disease each year. The disease strikes about 50 percent more men than women. The average age of onset is 60 years, and the risk of developing the disease increases with age. Parkinson's disease is also more common in developed countries, possibly because of increased exposure to pesticides or other environmental toxins.

What causes Parkinson's Disease ?

Parkinson's disease occurs when nerve cells, or neurons, in an area of the brain that controls movement die or become impaired. Normally, these neurons produce an important brain chemical known as dopamine, but once the neurons become impaired, they produce less dopamine and eventually die. It is this shortage of dopamine that causes the movement problems of people with Parkinson's.

What is (are) Parkinson's Disease ?

Dopamine is a brain chemical messenger, or neurotransmitter. It is responsible for transmitting signals between a brain region called the substantia nigra and multiple brain regions. The connection between the substantia nigra and the corpus striatum is critical to produce smooth, purposeful movement. Loss of dopamine results in abnormal nerve-firing patterns within the brain that cause impaired movement.

What is (are) Parkinson's Disease ?

Lewy bodies are unusual deposits or clumps of the brain protein alpha-synuclein, along with other proteins, which are seen upon microscopic examination of the brain. Many brain cells of people with Parkinson's disease contain Lewy bodies. Researchers do not yet know why Lewy bodies form or what role they play in the development of Parkinson's disease. The clumps may prevent the cell from functioning normally, or they may actually be helpful, perhaps by keeping harmful proteins "locked up" so that the cells can function.

How to diagnose Parkinson's Disease ?

There are currently no blood or laboratory tests to diagnose sporadic Parkinson's disease. Diagnosis is based on a person's medical history and a neurological examination, but the disease can be difficult to diagnose accurately. Doctors may sometimes request brain scans or laboratory tests in order to rule out other diseases. However, computed tomography (CT) and magnetic resonance imaging (MRI) brain scans of people with Parkinson's usually appear normal. Recently, the FDA (Food and Drug Administration) has approved an imaging technique called DaTscan, which may help to increase accuracy of the diagnosis of Parkinsons disease. Since many other diseases have similar features but require different treatments, it is very important to make an exact diagnosis as soon as possible to ensure proper treatment.

What is (are) Parkinson's Disease ?

The main therapy for Parkinson's disease is the drug levodopa, also called L-dopa. It is a simple chemical found naturally in plants and animals. Nerve cells use levodopa to make dopamine to replenish the brain's supply. Levodopa helps to reduce tremors and other symptoms of Parkinson's disease during the early stages of the disease. It allows most people with Parkinson's to extend the period of time in which they can lead relatively normal, productive lives.

What is (are) Parkinson's Disease ?

Carbidopa is a drug that is usually given along with levodopa. It delays the body's conversion of levodopa into dopamine until the levodopa reaches the brain. This prevents or reduces some of the side effects that often accompany levodopa therapy. Carbidopa also reduces the amount of levodopa needed.

What are the treatments for Parkinson's Disease ?

Yes. Other medications available to treat some symptoms and stages of Parkinson's disease include direct dopamine agonists, MAO-B inhibitors, COMT inhibitors, an anti-viral drug, and anticholinergics. Direct dopamine agonists are drugs that mimic the role of dopamine in the brain. They can be used in the early stages of the disease, or later on to give a more prolonged and steady dopaminergic effect in people who experience "wearing off" or "on-off" effects from taking the drug. Dopamine agonists are generally less effective than levodopa in controlling rigidity and bradykinesia. They can cause confusion in older adults. MAO-B inhibitors are another class of drugs that can reduce the symptoms of Parkinson's by causing dopamine to build up in surviving nerve cells. COMT inhibitors prolong the effects of levodopa by preventing the breakdown of dopamine. COMT inhibitors can usually make it possible to reduce a person's dose of levodopa. Amantadine, an old antiviral drug, can help reduce Parkinson's symptoms in the early stages of the disease, and again in later stages to treat dyskinesias. Anticholinergics can help reduce tremors and muscle rigidity.

What are the symptoms of Parkinson's Disease ?

Doctors may prescribe a variety of medications to treat the non-motor symptoms of Parkinson's disease, such as depression and anxiety. Hallucinations, delusions, and other psychotic symptoms may be caused by some drugs prescribed for Parkinson's. Therefore, reducing or stopping those Parkinson's medications may make these symptoms of psychosis go away. A variety of treatment options, including medications, also are available to treat orthostatic hypotension, the sudden drop in blood pressure that occurs upon standing.

What is (are) Parkinson's Disease ?

Deep brain stimulation, or DBS, is a surgical procedure used to treat a variety of disabling disorders. It is most commonly used to treat the debilitating symptoms of Parkinsons disease. Deep brain stimulation uses an electrode surgically implanted into part of the brain. The electrodes are connected under the skin to a small electrical device called a pulse generator, implanted in the chest. The generator and electrodes painlessly stimulate the brain to help stop many Parkinson's symptoms such as tremor, bradykinesia, and rigidity. DBS is primarily used to stimulate one of three brain regions: the subthalamic nucleus, the globus pallidus, or the thalamus. Researchers are exploring optimal generator settings for DBS, whether DBS of other brain regions will also improve symptoms of Parkinsons disease, and also whether DBS may slow disease progression. Deep brain stimulation usually reduces the need for levodopa and related drugs, which in turn decreases dyskinesias and other side effects. It also helps to relieve "on-off" fluctuation of symptoms. People who respond well to treatment with levodopa, even if only for a short period, tend to respond well to DBS.

what research (or clinical trials) is being done for Parkinson's Disease ?

Genetics is one of the most exciting areas of Parkinson's disease research. Studying the genes responsible for inherited cases can help researchers understand both inherited and sporadic cases of the disease. Sporadic means the disease occurs randomly and does not seem to run in families. Identifying gene defects can also help researchers - understand how the disease occurs - develop animal models that accurately mimic the death of nerve cells in human Parkinson's disease - identify new drug targets - improve diagnosis. understand how the disease occurs develop animal models that accurately mimic the death of nerve cells in human Parkinson's disease identify new drug targets improve diagnosis.

What is (are) Parkinson's Disease ?

The Parkinsons Disease Biomarkers Identification Network, or PD-BIN, is an initiative developed by the National Institute of Neurological Disorders and Stroke to discover and validate biomarkers for Parkinsons disease. Biomarkers are measurable characteristics that can reveal whether the disease is developing or progressing. Biomarkers could help doctors detect Parkinsons disease before symptoms appear and improve diagnosis of the disorder.

What is (are) Parkinson's Disease ?

The National Institute of Neurological Disorders and Stroke (NINDS) has launched a broad effort called NIH Exploratory Trials in Parkinson's Disease, or NET-PD, to find drugs to slow the progression of Parkinson's disease. The first studies tested several compounds. One of these, a nutritional supplement called creatine, is now being evaluated in a larger clinical trial to find out if it slows the clinical decline seen in people with Parkinson's disease. For more information on NET-PD trials visit: http://parkinsontrial.ninds.org.

What is (are) High Blood Cholesterol ?

What is Cholesterol? Cholesterol is a waxy, fat-like substance that your liver makes. It is also found in some foods that come from animals. Cholesterol is found in all parts of your body. It plays a vital role in your body. It makes hormones, helps you digest food, and supports the workings of all the cells in your body. But your liver makes all the cholesterol that your body needs to do this. Lipoproteins and Cholesterol Cholesterol circulates in your blood stream. But it's fatty while your blood is watery. Just like oil and water, the two do not mix. As a result, cholesterol travels through your bloodstream in small packages called lipoproteins. The packages are made of fat (lipids) on the inside and proteins on the outside. Two kinds of lipoproteins carry cholesterol through your bloodstream. It's important to have healthy levels of both: - low-density lipoproteins (LDL) - high-density lipoproteins (HDL). low-density lipoproteins (LDL) high-density lipoproteins (HDL). What Does LDL Cholesterol Do? Low-density lipoproteins (LDL) carry cholesterol to all the cells in your body, including the arteries that supply blood to your heart. LDL cholesterol is sometimes called bad cholesterol because it can build up in the walls of your arteries. The higher the level of LDL cholesterol in your blood, the greater your chances of getting heart disease. What Does HDL Cholesterol Do? High-density lipoproteins (HDL) carry cholesterol away from the cells in your body. HDL cholesterol is sometimes called good cholesterol because it helps remove cholesterol from your artery walls. The liver then removes the cholesterol from your body. The higher your HDL cholesterol level, the lower your chances of getting heart disease. If Your Blood Cholesterol Is Too High Too much cholesterol in your blood is called high blood cholesterol. It can be serious. It increases your chances of having a heart attack or getting heart disease. When the cholesterol level in your blood is too high, it can build up in the walls of your arteries. This buildup of cholesterol is called plaque. Plaque Buildup Can Lead to - Artherosclerosis. Over time, the plaque can build up so much that it narrows your arteries. This is called atherosclerosis, or hardening of the arteries. It can slow down or block the flow of blood to your heart. Artherosclerosis. Over time, the plaque can build up so much that it narrows your arteries. This is called atherosclerosis, or hardening of the arteries. It can slow down or block the flow of blood to your heart. - Coronary Heart Disease (CHD). Artherosclerosis can occur in blood vessels anywhere in your body, including the ones that bring blood to your heart, called the coronary arteries. If plaque builds up in these arteries, the blood may not be able to bring enough oxygen to the heart muscle. This is called coronary heart disease (CHD). Coronary Heart Disease (CHD). Artherosclerosis can occur in blood vessels anywhere in your body, including the ones that bring blood to your heart, called the coronary arteries. If plaque builds up in these arteries, the blood may not be able to bring enough oxygen to the heart muscle. This is called coronary heart disease (CHD). - Angina. The buildup of plaque can lead to chest pain called angina. Angina is a common symptom of CHD. It happens when the heart does not receive enough oxygen-rich blood from the lungs. Angina. The buildup of plaque can lead to chest pain called angina. Angina is a common symptom of CHD. It happens when the heart does not receive enough oxygen-rich blood from the lungs. - Heart Attack. Some plaques have a thin covering, so they may rupture or break open. A blood clot can then form over the plaque. A clot can block the flow of blood through the artery. This blockage can cause a heart attack. Heart Attack. Some plaques have a thin covering, so they may rupture or break open. A blood clot can then form over the plaque. A clot can block the flow of blood through the artery. This blockage can cause a heart attack. Lowering Cholesterol Can Affect Plaque Lowering your cholesterol level reduces your chances of plaque rupturing and causing a heart attack. It may also slow down, reduce, or even stop plaque from building up. And it reduces your chances of dying from heart disease. High blood cholesterol itself does not cause symptoms, so many people don't know that they have it. It is important to find out what your cholesterol numbers are because if you have high blood cholesterol, lowering it reduces your chances of getting heart disease or having a heart attack.

What causes High Blood Cholesterol ?

Many things can affect the level of cholesterol in your blood. You can control some of these things but not others. What You Can Control You can control - what you eat - your weight - your activity level. what you eat your weight your activity level. Your Diet Certain foods have several types of fat that raise your cholesterol level. - Saturated fat increases your LDL cholesterol level more than anything else in your diet. Saturated fat is found mostly in foods that come from animal sources such as egg yolks, meat, and milk products, including butter, cream and cheese. These foods also contain cholesterol. Saturated fat increases your LDL cholesterol level more than anything else in your diet. Saturated fat is found mostly in foods that come from animal sources such as egg yolks, meat, and milk products, including butter, cream and cheese. These foods also contain cholesterol. - Trans fatty acids, or trans fats, also raise your LDL cholesterol level. These mostly come from vegetable oil that has gone through a process called hydrogenation to make it hard. Examples of foods containing trans fats include many convenience foods such as doughnuts, French fries, cookies, cakes and pastries. Trans fatty acids, or trans fats, also raise your LDL cholesterol level. These mostly come from vegetable oil that has gone through a process called hydrogenation to make it hard. Examples of foods containing trans fats include many convenience foods such as doughnuts, French fries, cookies, cakes and pastries. Your Weight Being overweight tends to - increase your LDL level - lower your HDL level - increase your total cholesterol level. increase your LDL level lower your HDL level increase your total cholesterol level. Your Activity Level If you don't exercise regularly, you may gain weight. This could increase your LDL cholesterol level. Regular exercise can help you lose weight and lower your LDL level. It can also help you increase your HDL level. What You Cannot Control You cannot control some things that can affect the level of cholesterol in your blood, including - your heredity - your age - your sex. your heredity your age your sex. High blood cholesterol can run in families. For most people, their cholesterol level is the result of an interaction between their genes and their lifestyles. As we get older, our cholesterol levels rise. - Before menopause, women tend to have lower total cholesterol levels than men of the same age. - After menopause, women's LDL (bad) cholesterol levels tend to increase. Before menopause, women tend to have lower total cholesterol levels than men of the same age. After menopause, women's LDL (bad) cholesterol levels tend to increase.

What are the symptoms of High Blood Cholesterol ?

High blood cholesterol usually does not have any signs or symptoms. Many people don't know that their cholesterol levels are too high. Who Should Be Tested Everyone age 20 and older should have their cholesterol levels checked at least once every 5 years. If your cholesterol level is high, you will have to be tested more often. You and your doctor should discuss how often you should be tested. Your doctor will take a sample of blood from a vein in your arm and send it to the laboratory to find out the level of cholesterol in your blood. Cholesterol Tests The recommended test is called a fasting lipoprotein profile. It will show your - total cholesterol - LDL (bad) cholesterol, the main source of cholesterol buildup and blockage in your arteries - HDL (good) cholesterol, which helps keep cholesterol from building up in your arteries - triglycerides, another form of fat in your blood. total cholesterol LDL (bad) cholesterol, the main source of cholesterol buildup and blockage in your arteries HDL (good) cholesterol, which helps keep cholesterol from building up in your arteries triglycerides, another form of fat in your blood. You should not eat or drink anything except water or black coffee for 9 to 12 hours before taking the test. If you can't have a lipoprotein profile done, a different blood test will tell you your total cholesterol and HDL (good) cholesterol levels. You do not have to fast before this test. If this test shows that your total cholesterol is 200 mg/dL or higher, or that your HDL (good) cholesterol is less than 40 mg/dL, you will need to have a lipoprotein profile done. Cholesterol levels are measured in milligrams (mg) of cholesterol per deciliter (dL) of blood. The levels of blood cholesterol that are most important to know appear below. Ranges for Total Cholesterol Levels Here are the ranges for total cholesterol levels. Do you know how your cholesterol numbers compare? Ranges for LDL Cholesterol Levels Here are the ranges for LDL cholesterol levels. Do you know how your LDL cholesterol level compares? Ranges for HDL Cholesterol Levels Here are the ranges for HDL cholesterol levels. Do you know how your HDL cholesterol level compares? Triglyceride Levels A lipoprotein profile will also show the level of triglycerides in your blood. Triglycerides are another kind of fat that your liver makes. They can also signal an increased chance of developing heart disease. Normal levels of triglycerides are less than 150 mg/dl. If your triglyceride levels are borderline high (150-199 mg/dL) or high (200 mg/dL or more), you may need treatment. Things that can increase your triglyceride levels include - overweight - physical inactivity - cigarette smoking - excessive alcohol use - diabetes. overweight physical inactivity cigarette smoking excessive alcohol use diabetes. Other things that can increase your triglyceride levels include - a very high carbohydrate diet - certain diseases and drugs - genetic disorders. a very high carbohydrate diet certain diseases and drugs genetic disorders.

What is (are) High Blood Cholesterol ?

Cholesterol is a waxy, fat-like substance that your liver makes. It is also found in some foods that come from animals.

What is (are) High Blood Cholesterol ?

LDL stands for low-density lipoproteins. (Lipoproteins are molecules that carry cholesterol through your bloodstream.) LDL cholesterol is sometimes called bad cholesterol because it can build up in the walls of your arteries and make them narrower. This buildup of cholesterol is called plaque. Over time, plaque can build up so much that it narrows your arteries. This is called atherosclerosis or hardening of the arteries. The higher the level of LDL cholesterol in your blood, the greater your chances of getting heart disease.

What is (are) High Blood Cholesterol ?

HDL stands for high-density lipoproteins. (Lipoproteins are molecules that carry cholesterol through your bloodstream.) HDL cholesterol is sometimes called good cholesterol because it helps remove cholesterol from your artery walls and carries it to your liver. The liver then removes the cholesterol from your body. The higher your HDL cholesterol level, the lower your chances of getting heart disease.

What is (are) High Blood Cholesterol ?

Too much cholesterol in your blood is called high blood cholesterol. It can be serious. People with high blood cholesterol have a greater chance of getting heart disease. High blood cholesterol does not cause symptoms, so you may not be aware that your cholesterol level is too high.

What is (are) High Blood Cholesterol ?

Triglycerides are another kind of fat that your liver makes. They can also signal an increased chance of developing heart disease.

What is (are) High Blood Cholesterol ?

Cholesterol can build up in the walls of your arteries. This buildup of cholesterol is called plaque. Over time, the plaque can build up so much that the arteries become narrower. This is called atherosclerosis, or hardening of the arteries. It can slow down or block the flow of blood to your heart.

What is (are) High Blood Cholesterol ?

The coronary arteries bring blood to your heart. If plaque builds up in these arteries, the blood may not be able to bring enough oxygen to the heart muscle. This is called coronary heart disease.

What is (are) High Blood Cholesterol ?

You can control - what you eat. Foods containing saturated fats, trans fats, and cholesterol raise your cholesterol. what you eat. Foods containing saturated fats, trans fats, and cholesterol raise your cholesterol. - your weight. Being overweight tends to increase your LDL level, reduce your HDL level, and increase your total cholesterol level. your weight. Being overweight tends to increase your LDL level, reduce your HDL level, and increase your total cholesterol level. - your activity level. If you don't exercise regularly, you may gain weight. This could increase your LDL level. Regular exercise can help you lose weight and lower your LDL level. It can also help you increase your HDL level. your activity level. If you don't exercise regularly, you may gain weight. This could increase your LDL level. Regular exercise can help you lose weight and lower your LDL level. It can also help you increase your HDL level.

What is (are) High Blood Cholesterol ?

You cannot control - heredity. High blood cholesterol can run in families. - age. As we get older, our cholesterol levels rise. - sex. Before menopause, women tend to have lower total cholesterol levels than men of the same age. After menopause, women's LDL (bad) cholesterol levels tend to increase. heredity. High blood cholesterol can run in families. age. As we get older, our cholesterol levels rise. sex. Before menopause, women tend to have lower total cholesterol levels than men of the same age. After menopause, women's LDL (bad) cholesterol levels tend to increase.

How to diagnose High Blood Cholesterol ?

The recommended blood test for checking your cholesterol levels is called a fasting lipoprotein profile. It will show your - total cholesterol - low-density lipoprotein (LDL), or bad cholesterol -- the main source of cholesterol buildup and blockage in the arteries - high-density lipoprotein (HDL), or good cholesterol that helps keep cholesterol from building up in your arteries - triglycerides -- another form of fat in your blood. total cholesterol low-density lipoprotein (LDL), or bad cholesterol -- the main source of cholesterol buildup and blockage in the arteries high-density lipoprotein (HDL), or good cholesterol that helps keep cholesterol from building up in your arteries triglycerides -- another form of fat in your blood. You should not eat or drink anything except water and black coffee for 9 to 12 hours before taking the test. If you can't have a lipoprotein profile done, a different blood test will tell you your total cholesterol and HDL (good) cholesterol levels. You do not have to fast before this test. If this test shows that your total cholesterol is 200 mg/dL or higher, or that your HDL (good) cholesterol is less than 40 mg/dL, you will need to have a lipoprotein profile done.

What is (are) High Blood Cholesterol ?

A desirable level for total cholesterol is less than 200 mg/dL. Here are the ranges for total cholesterol levels. Do you know how your total cholesterol level compares?

What is (are) High Blood Cholesterol ?

A desirable level for LDL (bad) cholesterol is under 100 mg/dL. Here are the ranges for LDL cholesterol levels. Do you know how your LDL level compares?

What is (are) High Blood Cholesterol ?

An HDL (good) cholesterol level more than 60 mg/dL is desirable for most people. Here are the ranges for HDL cholesterol levels. Do you know how your HDL cholesterol level compares?

What is (are) High Blood Cholesterol ?

A lipoprotein profile will also show the level of triglycerides in your blood. A desirable level is less than 150mg/dL. If the triglycerides in your blood are borderline high (150-199 mg/dL), or high (200 mg/dL or more), you may need treatment.

What is (are) High Blood Cholesterol ?

Your LDL goal is how low your LDL cholesterol level should be to reduce your risk of developing heart disease or having a heart attack. The higher your risk, the lower your goal LDL should be. Your doctor will set your LDL goal using your medical history and the number of risk factors that you have.

What is (are) High Blood Cholesterol ?

Your LDL cholesterol goal level depends on your risk for developing heart disease or having a heart attack at the time you start treatment. Major risk factors that affect your LDL goal include - cigarette smoking - high blood pressure (140/90 mmHg or higher), or being on blood pressure medicine - low HDL cholesterol (less than 40 mg/dL) - family history of early heart disease (heart disease in father or brother before age 55; heart disease in mother or sister before age 65) - age (men 45 years or older; women 55 years or older). cigarette smoking high blood pressure (140/90 mmHg or higher), or being on blood pressure medicine low HDL cholesterol (less than 40 mg/dL) family history of early heart disease (heart disease in father or brother before age 55; heart disease in mother or sister before age 65) age (men 45 years or older; women 55 years or older).

What are the treatments for High Blood Cholesterol ?

The main goal of cholesterol-lowering treatment is to lower your LDL (bad) cholesterol level enough to reduce your risk of having a heart attack or diseases caused by narrowing of the arteries.

What are the treatments for High Blood Cholesterol ?

There are two main ways to lower your cholesterol: Therapeutic Lifestyle Changes and medicines.

What is (are) High Blood Cholesterol ?

TLC stands for Therapeutic Lifestyle Changes. It is a set of lifestyle changes that can help you lower your LDL cholesterol. TLC has three main parts: a cholesterol-lowering diet, weight management, and physical activity. The TLC Diet recommends - reducing the amount of saturated fat, trans fat, and cholesterol you eat. - eating only enough calories to achieve or maintain a healthy weight. - increasing the soluble fiber in your diet by eating foods such as oatmeal, kidney beans, and apples. - adding cholesterol-lowering foods, such as juices or margarines that contain plant sterols or stanols that lower cholesterol. reducing the amount of saturated fat, trans fat, and cholesterol you eat. eating only enough calories to achieve or maintain a healthy weight. increasing the soluble fiber in your diet by eating foods such as oatmeal, kidney beans, and apples. adding cholesterol-lowering foods, such as juices or margarines that contain plant sterols or stanols that lower cholesterol. Weight management is an important part of TLC. Losing weight if you are overweight can help lower LDL cholesterol. Weight management is especially important for people who have a group of risk factors that includes high triglyceride and/or low HDL levels, being overweight, and having too large a waist. Too large a waist is defined as a waist measurement of 40 inches or more for men and 35 inches or more for women. Physical activity is another important part of TLC. Regular physical activity is recommended for everyone. It can help raise HDL levels and lower LDL levels. It is especially important for people with high triglyceride and/or low HDL levels who are overweight and/or have a large waist measurement.

What is (are) High Blood Cholesterol ?

If TLC (Therapeutic Lifestyle Changes) cannot lower your LDL cholesterol level enough by itself, your doctor may prescribe cholesterol-lowering medicines. The following medicines are used together with TLC to help lower your LDL (bad) cholesterol level. - statins - ezetimibe - bile acid sequestrants - nicotinic acid - fibrates. statins ezetimibe bile acid sequestrants nicotinic acid fibrates. Statins - are very effective in lowering LDL (bad) cholesterol levels - are safe for most people - have side effects that are infrequent, but potentially serious such as liver and muscle problems. are very effective in lowering LDL (bad) cholesterol levels are safe for most people have side effects that are infrequent, but potentially serious such as liver and muscle problems. Ezetimibe - lowers LDL (bad) cholesterol - may be used with statins or alone - acts within the intestine to block absorption of cholesterol. lowers LDL (bad) cholesterol may be used with statins or alone acts within the intestine to block absorption of cholesterol. Bile acid sequestrants - lower LDL (bad) cholesterol levels - are sometimes prescribed with statins - are not usually prescribed alone to lower cholesterol. lower LDL (bad) cholesterol levels are sometimes prescribed with statins are not usually prescribed alone to lower cholesterol. Nicotinic acid - lowers LDL (bad) cholesterol and triglycerides, and raises HDL (good) cholesterol - should be used only under a doctor's supervision. lowers LDL (bad) cholesterol and triglycerides, and raises HDL (good) cholesterol should be used only under a doctor's supervision. Fibrates - mainly lower triglycerides - may increase HDL (good) cholesterol levels - may increase the risk of muscle problems when used with a statin. mainly lower triglycerides may increase HDL (good) cholesterol levels may increase the risk of muscle problems when used with a statin.

What is (are) Age-related Macular Degeneration ?

Age-related macular degeneration, also known as AMD, is an eye disease that affects the macula, a part of the retina. The retina sends light from the eye to the brain, and the macula allows you to see fine detail. AMD Blurs Central Vision AMD blurs the sharp central vision you need for straight-ahead activities such as reading, sewing, and driving. AMD causes no pain. How AMD Progresses In some cases, AMD advances so slowly that people notice little change in their vision. In others, the disease progresses faster and may lead to a loss of vision in both eyes. AMD is a common eye condition among people age 50 and older. It is a leading cause of vision loss in older adults. Two Forms of AMD There are two forms of age-related macular degeneration -- dry and wet.

Who is at risk for Age-related Macular Degeneration? ?

Risk Increases With Age AMD is most common in older people, but it can occur during middle age. The risk increases with age. Other Risk Factors Other risk factors include - Smoking - Obesity - Race. Whites are much more likely to lose vision from AMD than African-Americans. - Family history. People with a family history of AMD are at higher risk of getting the disease. - Gender. Women appear to be at greater risk than men. Smoking Obesity Race. Whites are much more likely to lose vision from AMD than African-Americans. Family history. People with a family history of AMD are at higher risk of getting the disease. Gender. Women appear to be at greater risk than men.

What are the symptoms of Age-related Macular Degeneration ?

AMD is detected during a comprehensive eye exam that includes a visual acuity test, a dilated eye exam, and tonometry. Tests for AMD - The visual acuity test is an eye chart test that measures how well you see at various distances. - In the dilated eye exam, drops are placed in your eyes to widen, or dilate, the pupils. Then, your eye care professional uses a special magnifying lens to examine your retina and optic nerve for signs of AMD and other eye problems. After the exam, your close-up vision may remain blurred for several hours. - With tonometry, an instrument measures the pressure inside the eye. Numbing drops may be applied to your eye for this test. The visual acuity test is an eye chart test that measures how well you see at various distances. In the dilated eye exam, drops are placed in your eyes to widen, or dilate, the pupils. Then, your eye care professional uses a special magnifying lens to examine your retina and optic nerve for signs of AMD and other eye problems. After the exam, your close-up vision may remain blurred for several hours. With tonometry, an instrument measures the pressure inside the eye. Numbing drops may be applied to your eye for this test. Your eye care professional also may do other tests to learn more about the structure and health of your eye. The Amsler Grid During an eye exam, you may be asked to look at an Amsler grid, shown here. You will cover one eye and stare at a black dot in the center of the grid. While staring at the dot, you may notice that the straight lines in the pattern appear wavy. You may notice that some of the lines are missing. These may be signs of AMD. Because dry AMD can turn into wet AMD at any time, you should get an Amsler grid from your eye care professional. You could then use the grid every day to evaluate your vision for signs of wet AMD. The Fluorescein Angiogram Test If your eye care professional believes you need treatment for wet AMD, he or she may suggest a fluorescein angiogram. In this test, a special dye is injected into your arm. Pictures are taken as the dye passes through the blood vessels in your eye. The test allows your eye care professional to identify any leaking blood vessels and recommend treatment.

What are the treatments for Age-related Macular Degeneration ?

If You Have Advanced AMD Once dry AMD reaches the advanced stage, no form of treatment can prevent vision loss. However, treatment can delay and possibly prevent intermediate AMD from progressing to the advanced stage. The National Eye Institute's Age-Related Eye Disease Study found that taking certain vitamins and minerals may reduce the risk of developing advanced AMD. Wet AMD can be treated with laser surgery, photodynamic therapy, and injections into the eye. None of these treatments is a cure for wet AMD. The disease and loss of vision may progress despite treatment. Laser Surgery Laser surgery uses a laser to destroy the fragile, leaky blood vessels. Only a small percentage of people with wet AMD can be treated with laser surgery. Laser surgery is performed in a doctor's office or eye clinic. The risk of new blood vessels developing after laser treatment is high. Repeated treatments may be necessary. In some cases, vision loss may progress despite repeated treatments. Photodynamic Therapy With photodynamic therapy, a drug called verteporfin is injected into your arm. It travels throughout the body, including the new blood vessels in your eye. The drug tends to stick to the surface of new blood vessels. Next, the doctor shines a light into your eye for about 90 seconds. The light activates the drug. The activated drug destroys the new blood vessels and leads to a slower rate of vision decline. Unlike laser surgery, verteporfin does not destroy surrounding healthy tissue. Because the drug is activated by light, you must avoid exposing your skin or eyes to direct sunlight or bright indoor light for five days after treatment. Photodynamic therapy is relatively painless. It takes about 20 minutes and can be performed in a doctor's office. Photodynamic therapy slows the rate of vision loss. It does not stop vision loss or restore vision in eyes already damaged by advanced AMD. Treatment results often are temporary. You may need to be treated again. Drug Treatment for Wet AMD Wet AMD can now be treated with new drugs that are injected into the eye (anti-VEGF therapy). Abnormally high levels of a specific growth factor occur in eyes with wet AMD and promote the growth of abnormal new blood vessels. This drug treatment blocks the effects of the growth factor. You will need multiple injections that may be given as often as monthly. The eye is numbed before each injection. After the injection, you will remain in the doctor's office for a while and your eye will be monitored. This drug treatment can help slow down vision loss from AMD and in some cases improve sight. If You Have Low Vision If you have lost some sight from AMD, ask your eye care professional about low vision services and devices that may help you make the most of your remaining vision. Many community organizations and agencies offer information about low vision counseling and training and other special services for people with visual impairments. Research on AMD The National Eye Institute is conducting and supporting a number of studies to learn more about AMD. For example, scientists are - studying the possibility of transplanting healthy cells into a diseased retina - evaluating families with a history of AMD to understand genetic and hereditary factors that may cause the disease - looking at certain anti-inflammatory treatments for the wet form of AMD studying the possibility of transplanting healthy cells into a diseased retina evaluating families with a history of AMD to understand genetic and hereditary factors that may cause the disease looking at certain anti-inflammatory treatments for the wet form of AMD This research should provide better ways to detect, treat, and prevent vision loss in people with AMD.

What is (are) Age-related Macular Degeneration ?

Age-related macular degeneration, or AMD, is a disease that blurs the sharp, central vision you need for straight-ahead activities such as reading, sewing, and driving. AMD affects the macula, the part of the eye that allows you to see fine detail. AMD causes no pain.

What is (are) Age-related Macular Degeneration ?

Wet AMD occurs when abnormal blood vessels behind the retina start to grow under the macula. With wet AMD, loss of central vision can occur quickly. Wet AMD is considered to be advanced AMD and is more severe than the dry form.

What is (are) Age-related Macular Degeneration ?

Dry AMD occurs when the light-sensitive cells in the macula slowly break down, gradually blurring central vision in the affected eye. As dry AMD gets worse, you may see a blurred spot in the center of your vision. Over time, as less of the macula functions, central vision in the affected eye can be lost. If you have vision loss from dry AMD in one eye only, you may not notice any changes in your overall vision. With the other eye seeing clearly, you can still drive, read, and see fine details. You may notice changes in your vision only if AMD affects both eyes. If you experience blurry vision, see an eye care professional for a comprehensive dilated eye exam.

What is (are) Age-related Macular Degeneration ?

Dry AMD has three stages -- early AMD, intermediate AMD, and advanced dry AMD. All of these may occur in one or both eyes. People with early dry AMD have either several small drusen or a few medium-sized drusen. Drusen are yellow deposits under the retina which often are found in people over age 50. People with early AMD have no symptoms and no vision loss. People with intermediate dry AMD have either many medium-sized drusen or one or more large drusen. Some people see a blurred spot in the center of their vision. More light may be needed for reading and other tasks. In addition to drusen, people with advanced dry AMD have a breakdown of light-sensitive cells and supporting tissue in the macula. This breakdown can cause a blurred spot in the center of your vision. Over time, the blurred spot may get bigger and darker, taking more of your central vision. You may have difficulty reading or recognizing faces until they are very close to you.

What is (are) Age-related Macular Degeneration ?

Drusen are yellow deposits under the retina. They often are found in people over age 50. Your eye care professional can detect drusen during a comprehensive dilated eye exam.

What causes Age-related Macular Degeneration ?

Drusen alone do not usually cause vision loss. In fact, scientists are unclear about the connection between drusen and AMD. They do know that an increase in the size or number of drusen raises a person's risk of developing either advanced dry AMD or wet AMD. These changes can cause serious vision loss.

What are the symptoms of Age-related Macular Degeneration ?

An early symptom of wet AMD is that straight lines appear wavy. If you notice this condition or other changes to your vision, contact your eye care professional at once. You need a comprehensive dilated eye exam.

What are the symptoms of Age-related Macular Degeneration ?

The most common symptom of dry AMD is slightly blurred vision. You may have difficulty recognizing faces. You may need more light for reading and other tasks. Dry AMD generally affects both eyes, but vision can be lost in one eye while the other eye seems unaffected. One of the most common early signs of dry AMD is drusen. Drusen are yellow deposits under the retina. They often are found in people over age 50. Your eye care professional can detect drusen during a comprehensive dilated eye exam.

Who is at risk for Age-related Macular Degeneration? ?

AMD is most common in older people, but it can occur during middle age. The risk increases with age. Other risk factors include smoking, obesity, white race, family history of AMD, and female gender.

What are the treatments for Age-related Macular Degeneration ?

Once dry AMD reaches the advanced stage, no form of treatment can prevent vision loss. However, treatment can delay and possibly prevent intermediate AMD from progressing to the advanced stage, in which vision loss occurs.

What is (are) Age-related Macular Degeneration ?

The AREDS formulation is a combination of antioxidants and zinc that is named for a study conducted by The National Eye Institute called the Age-Related Eye Disease Study, or AREDS. This study found that taking a specific high-dose formulation of antioxidants and zinc significantly reduced the risk of advanced AMD and its associated vision loss. Slowing AMD's progression from the intermediate stage to the advanced stage will save many people's vision.

What is (are) Age-related Macular Degeneration ?

The daily amounts used by the study researchers were 500 milligrams of vitamin C, 400 International Units of vitamin E, 15 milligrams of beta-carotene, 80 milligrams of zinc as zinc oxide, and 2 milligrams of copper as cupric oxide. Copper was added to the AREDS formulation containing zinc to prevent copper deficiency anemia, a condition associated with high levels of zinc intake.

How to prevent Age-related Macular Degeneration ?

There is no reason for those diagnosed with early stage AMD to take the AREDS formulation. The study did not find that the formulation helped those with early stage AMD. If you have early stage AMD, a comprehensive dilated eye exam every year can help determine if the disease is progressing. If early stage AMD progresses to the intermediate stage, discuss taking the formulation with your doctor.

What are the treatments for Age-related Macular Degeneration ?

Wet AMD can be treated with laser surgery, photodynamic therapy, and drugs that are injected into the eye. None of these treatments is a cure for wet AMD. The disease and loss of vision may progress despite treatment.

what research (or clinical trials) is being done for Age-related Macular Degeneration ?

The National Eye Institute scientists are - studying the possibility of transplanting healthy cells into a diseased retina - evaluating families with a history of AMD to understand genetic and hereditary factors that may cause the disease - looking at certain anti-inflammatory treatments for the wet form of AMD. studying the possibility of transplanting healthy cells into a diseased retina evaluating families with a history of AMD to understand genetic and hereditary factors that may cause the disease looking at certain anti-inflammatory treatments for the wet form of AMD. This research should provide better ways to detect, treat, and prevent vision loss in people with AMD.

What is (are) Age-related Macular Degeneration ?

National Eye Institute National Institutes of Health 2020 Vision Place Bethesda, MD 20892-3655 301-496-5248 E-mail: 2020@nei.nih.gov www.nei.nih.gov Association for Macular Diseases 210 East 64th Street, 8th Floor New York, NY 10021-7471 212-605-3719 Foundation Fighting Blindness Executive Plaza 1, Suite 800 11435 Cronhill Drive Owings Mill, MD 21117-2220 1-888-394-3937 410-785-1414 Macular Degeneration Partnership 6222 Wilshire Boulevard, Suite 260 Los Angeles, CA 90048 1-888-430-9898 310-623-4466 www.amd.org

What is (are) Glaucoma ?

Glaucoma is a group of diseases that can damage the eye's optic nerve and result in vision loss and blindness. While glaucoma can strike anyone, the risk is much greater for people over 60. How Glaucoma Develops There are several different types of glaucoma. Most of these involve the drainage system within the eye. At the front of the eye there is a small space called the anterior chamber. A clear fluid flows through this chamber and bathes and nourishes the nearby tissues. (Watch the video to learn more about glaucoma. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) In glaucoma, for still unknown reasons, the fluid drains too slowly out of the eye. As the fluid builds up, the pressure inside the eye rises. Unless this pressure is controlled, it may cause damage to the optic nerve and other parts of the eye and result in loss of vision. Open-angle Glaucoma The most common type of glaucoma is called open-angle glaucoma. In the normal eye, the clear fluid leaves the anterior chamber at the open angle where the cornea and iris meet. When fluid reaches the angle, it flows through a spongy meshwork, like a drain, and leaves the eye. Sometimes, when the fluid reaches the angle, it passes too slowly through the meshwork drain, causing the pressure inside the eye to build. If the pressure damages the optic nerve, open-angle glaucoma -- and vision loss -- may result. There is no cure for glaucoma. Vision lost from the disease cannot be restored. However, there are treatments that may save remaining vision. That is why early diagnosis is important. See this graphic for a quick overview of glaucoma, including how many people it affects, whos at risk, what to do if you have it, and how to learn more. See a glossary of glaucoma terms.

What causes Glaucoma ?

Nearly 2.7 million people have glaucoma, a leading cause of blindness in the United States. Although anyone can get glaucoma, some people are at higher risk. They include - African-Americans over age 40 - everyone over age 60, especially Hispanics/Latinos - people with a family history of glaucoma. African-Americans over age 40 everyone over age 60, especially Hispanics/Latinos people with a family history of glaucoma. In addition to age, eye pressure is a risk factor. Whether you develop glaucoma depends on the level of pressure your optic nerve can tolerate without being damaged. This level is different for each person. Thats why a comprehensive dilated eye exam is very important. It can help your eye care professional determine what level of eye pressure is normal for you. Another risk factor for optic nerve damage relates to blood pressure. Thus, it is important to also make sure that your blood pressure is at a proper level for your body by working with your medical doctor. (Watch the animated video to learn more about the causes of glaucoma. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.)

What are the symptoms of Glaucoma ?

Symptoms of Glaucoma Glaucoma can develop in one or both eyes. The most common type of glaucoma, open-angle glaucoma, has no symptoms at first. It causes no pain, and vision seems normal. Without treatment, people with glaucoma will slowly lose their peripheral, or side vision. They seem to be looking through a tunnel. Over time, straight-ahead vision may decrease until no vision remains. Tests for Glaucoma Glaucoma is detected through a comprehensive eye exam that includes a visual acuity test, visual field test, dilated eye exam, tonometry, and pachymetry. (Watch the animated video to learn more about testing for glaucoma. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) A visual acuity test uses an eye chart test to measure how well you see at various distances. A visual field test measures your side or peripheral vision. It helps your eye care professional tell if you have lost side vision, a sign of glaucoma. In a dilated eye exam, drops are placed in your eyes to widen, or dilate, the pupils. Your eye care professional uses a special magnifying lens to examine your retina and optic nerve for signs of damage and other eye problems. After the exam, your close-up vision may remain blurred for several hours. In tonometry, an instrument measures the pressure inside the eye. Numbing drops may be applied to your eye for this test. With pachymetry, a numbing drop is applied to your eye. Your eye care professional uses an ultrasonic wave instrument to measure the thickness of your cornea.

What are the treatments for Glaucoma ?

Although open-angle glaucoma cannot be cured, it can usually be controlled. While treatments may save remaining vision, they do not improve sight already lost from glaucoma. The most common treatments for glaucoma are medication and surgery. Medications Medications for glaucoma may be either in the form of eye drops or pills. Some drugs reduce pressure by slowing the flow of fluid into the eye. Others help to improve fluid drainage. (Watch the video to learn more about coping with glaucoma. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) For most people with glaucoma, regular use of medications will control the increased fluid pressure. But, these drugs may stop working over time. Or, they may cause side effects. If a problem occurs, the eye care professional may select other drugs, change the dose, or suggest other ways to deal with the problem. Read or listen to ways some patients are coping with glaucoma. Surgery Laser surgery is another treatment for glaucoma. During laser surgery, a strong beam of light is focused on the part of the anterior chamber where the fluid leaves the eye. This results in a series of small changes that makes it easier for fluid to exit the eye. Over time, the effect of laser surgery may wear off. Patients who have this form of surgery may need to keep taking glaucoma drugs. Researching Causes and Treatments Through studies in the laboratory and with patients, NEI is seeking better ways to detect, treat, and prevent vision loss in people with glaucoma. For example, researchers have discovered genes that could help explain how glaucoma damages the eye. NEI also is supporting studies to learn more about who is likely to get glaucoma, when to treat people who have increased eye pressure, and which treatment to use first.

What is (are) Glaucoma ?

Glaucoma is a group of diseases that can damage the eye's optic nerve and result in vision loss and blindness. The most common form of the disease is open-angle glaucoma. With early treatment, you can often protect your eyes against serious vision loss. (Watch the video to learn more about glaucoma. To enlarge the video, click the brackets in the lower right-hand corner. To reduce the video, press the Escape (Esc) button on your keyboard.) See this graphic for a quick overview of glaucoma, including how many people it affects, whos at risk, what to do if you have it, and how to learn more. See a glossary of glaucoma terms.

What is (are) Glaucoma ?

The optic nerve is a bundle of more than 1 million nerve fibers. It connects the retina to the brain.

What is (are) Glaucoma ?

Open-angle glaucoma is the most common form of glaucoma. In the normal eye, the clear fluid leaves the anterior chamber at the open angle where the cornea and iris meet. When the fluid reaches the angle, it flows through a spongy meshwork, like a drain, and leaves the eye. Sometimes, when the fluid reaches the angle, it passes too slowly through the meshwork drain, causing the pressure inside the eye to build. If the pressure damages the optic nerve, open-angle glaucoma -- and vision loss -- may result.