柴胡及甘草酸对小鼠肝细胞凋亡的影响

目的：研究柴胡（ＲＢ）及甘草酸（ＧＬ）对小鼠肝细胞凋亡的影响。方法：以肝／体重比，肝组织ＤＮＡ含量，组织学改变及原位凋亡细胞ＴＵＮＥＬ反应为指标，观察ＲＢ（１２．０ｇ／ｋｇ）及ＧＬ（５０ｍｇ／ｋｇ）ｉｐ，１次／８ｈ，对撇除苯巴比胺钠（ＰＢ）后引起的小鼠肝细胞凋亡的影响。结果：与对照组Ｃ相比，ＲＢ组小鼠肝／体重比及肝ＤＮＡ含量无明显回落，组织学检查未见明显凋亡改变，ＴＵＮＥＬ反应阴性，ＧＬ组小鼠肝／

Effects of radix bupleuri and glycyrrhizin on the hepatocyte apoptosis in mice

Aim: The effects of radix bupleuri (RB) and glycyrrhizin(GL)on the hepatocyte apoptosis in mice were investigated. Methods: The ratio of liver/body weight, hepatic DNA content, morphological changes and TUNEL reaction (TdT mediated X dUTP nick labeling), as indices of evaluating hepatocyte apoptosis, were used to observe the effects of RB (12.0 g/kg,ip) and GL (50 mg/kg,ip) on the hepatocyte apoptosis caused by phenobarbital (PB) withdrawal. Results: The regression of hepatic DNA content and ratio of liver/body weight and typical hepatocyte apoptosis, which occurred in the mice as control after stopping PB, were not found in the mice treated with RB,and a negative result of TUNEL assay was presented. However, in the mice given GL the ratio of liver/body weight and hepatic DNA content regressed by 12.0% and 13.6%, respectively; with a positive reaction of TUNEL assay and the typical changes of hepatocyte apoptosis. Conclusion: The results showed that RB, but not GL, prevented hepatocyte apoptosis caused by PB withdrawal in mice.