>These <span  title="" class="an ">&ensp;</span>observations <span  title="" class="an ">&ensp;</span>may <span  title="" class="an ">&ensp;</span>help <span  title="" class="an ">&ensp;</span>to <span  title="" class="an ">&ensp;</span>understand <span  title="" class="an ">&ensp;</span>the <span  title="" class="an ">&ensp;</span>molecular <span  title="" class="an ">&ensp;</span>basis <span  title="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span>neurological <span  title="" class="