S组大鼠脊髓背角神经元细胞内尼氏小体呈中心性或周边性溶解，或聚集成大小不等的块状，部分神经细胞则皱缩、胞核轮廓不清，甚至细胞崩解坏死，细胞数明显减少脊髓白质水肿、破裂脊软膜破裂。E组病理改变与S组相似，但神经元肿胀程度和皱缩、胞核轮廓不清程度均较S组轻。对照组无明显病理改变。

S rat dorsal horn neurons in the Nissl Ticheng central or peripheral of the dissolution, or gathered into the massive size, some nerve cells shrinkage, nuclear and ill-defined contours, and even cell collapse Necrosis, significantly reducing the number of spinal cord white matter edema, broken spinal soft membrane rupture. Group E with pathological changes similar to S group, but neurons swelling and extent of shrinkage, nuclear and ill-defined contours extent than S group. The control group had no pathological changes.

In S group of big mouse spinal cord back angle neuron cell the Nepali minute assumes the centricity or the peripherality dissolves, or gathers size different massive, the partial nerve cell shinks, the nucleus outline not to be unclear, even cell disintegration necrosis, cell number obvious reduction spinal cord white matter dropsy, breakage keel pia mater breakage. E group of pathology change and S group of similar, but neuron swelling degree and shrinkage, nucleus outline unclear degree S group of light. Control group not obvious pathology change.