ass="an ">&ensp;</span>type <span  title="" class="an ">&ensp;</span>blockade <span  title="" class="an ">&ensp;</span>varied <span  title="" class="an ">&ensp;</span>widely <span  title="" class="an ">&ensp;</span>between <span  title="" class="an ">&ensp;</span><span  title="Neuron" class="an Neuron">cells</span><span  title="" class="an ">&ensp;</span>After <span  title="" class="an ">&ensp;</span>injury <span  title="" class="an ">&ensp;</span>transients <span  title="" class="an ">&ensp;</span>lost <sp