METHODS:Fifty adult SD rats were randomly divided into four groups: sham operation group (group A,n=5), non intervention group with sciatic nerve transection (group B,n=15), normal saline group (group C,n=15) and nimodipine group (group D,n=15).

• 方法:将50只成年SD大鼠,随机分成4组:假手术组(A组,n=5); 坐骨神经切断未干预组(B组,n=15);