柴胡总皂苷抗内毒素活性研究

目的 :探讨柴胡总皂苷 (BCS)抗内毒素活性。方法 :从柴胡中提出柴胡总皂苷 ,用体外鲎试验法、细菌内毒素致兔热模型、细菌内毒素致卡介苗增敏小鼠毒性证实其抗内毒素活性。结果 :体外鲎试验法显示将 5 0mg·ml 1的柴胡总皂苷溶液稀释至 32倍仍有直接破坏内毒素作用 ;解热实验显示 ,BCS +LPS组、模型组 (LPS)、BCS组的最大升温和平均升温分别为 0 0 5℃和 0 75℃ ,0 0 1℃和 - 0 2 5℃ ,0 4 9℃和 - 0 37℃ ,BCS +LPS组与模型组相比差异显著 (P <0 0 1) ;细菌内毒素致小鼠毒性实验显示 ,BCS +LPS组死亡率 (13 3% )大于BCS组 (5 0 % ) ,但与模型组 (90 0 % )相比 ,差异显著 (P <0 0 1)。结论 :柴胡总皂苷具有抗内毒素活性。

Studies on Antiendotoxin Action of Total Saponins from Radix Bupleuri

OBJECTIVE: To study antiendotoxin activities of total saponins from Radix Bupleuri. METHOD: The antiendotoxin activities were demonstrated by Limulus Amebocyte Lysate test (LAL test) in vitro, the fever model induced by endotoxin in rabbits and the model induced by LPS in BCG-primed mice. RESULTS: Total saponins from Radix Bupleuri still had antiendotoxin effect even when it (50 mg.ml-1) was diluted to 32 times by LAL test in vitro. The fever experiment results showed the average rising temperature of BCS + LPS, group, model group and BCS group was 0.75 degrees C, -0.25 degrees C and -0.37 degrees C respectively. In the experiment of the poison induced by LPS, fatal rate of model group was 90.0%, that of BCS + LPS group was 13.3%, there was a significant difference (P < 0.01). CONCLUSION: The result showed that the total saponins in Bupleuri had the strongest antiendotoxin action.