The detection of cell death: Ho33342 and PI fluorescence dual-stain: In control group, caryoplasm were uniform and presented blue fluorescence. In experiment group, there were necrotic cell which presented red fluorescence. 3. 细胞死亡的检测:Ho33342和PI双标:对照组中的细胞核质均匀,呈现蓝色荧光;磁场照射组出现呈红色荧光的坏死细胞,部分细胞出现染色质凝集、边缘化现象。