Methods Using the DNA end?labeling method the effect of dopamine (DA) on rat apoptotic PC12 cells was examined by flow cytometry and fluorescence microscopy.

• 方法用脱氧核糖核酸（DNA）标记法，借助流式细胞仪和荧光显微镜观察多巴胺（DA）对大鼠嗜铬细胞瘤（PC12）细胞凋亡的影响。