A week after injection,mild degeneration in DGR cells was observed. Four weeks after injection,necrosis of most DRG cell was observed. Eight weeks after injection,most DRG cells were extinct and replaced by neuroglial cells and connective tissue.

• 注射阿霉素 1周后 ,DRG细胞轻度变性 ,4周后大多数神经节细胞坏死 ,8周后DRG内大部分神经节细胞消失 ,而被神经胶质细胞及结缔组织代替。