sentence: This is consistent with the reported changes in miRNA expression post-LTP and the localisation of miRNA and proteins involved in miRNA biogenesis and function at synapses ( Lugli et al ., 2005 , 2008 ; Schratt et al ., 2006 ; Kye et al ., 2007 ; Aschrafi et al ., 2008 ; Siegel et al ., 2009 ; Natera-Naranjo et al ., 2010 ) .