Pathological examination showed an appearance of atrophy,denaturation and necrosis of cells with their neurofibers dissolving and obliteration in hippocampus of lead group rats but no obviously impaired was shown in rats of lead DHG group.

• (3 )病理检查 ,铅组大鼠海马显著萎缩 ,细胞形态不规则、排列紊乱 ,细胞变性、脱失显著 ,轴突溶解、消失 ; 阿胶铅组海马病理变化不明显。