Botulinum toxin is a toxic extremely strong neurotropic virus , endanger human health .
肉毒杆菌毒素是一种毒性极强的嗜神经病毒，危害人体健康。
Experimental myopathy induced by intramuscular injection of neurotropic drugs .
肌肉内注射药物引发肌肉病变之实验研究。
To investigate the effect of injured spinal cord extracts on secretion of brain-derived neurotropic factor ( bdnf ) or myelin proteolipid protein ( plp ) in bmscs .
