Pharmacodynamics of the effective anti-hypoxia constituents in Saussurea involucrata
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摘要: 目的 研究大苞雪莲有效成分（石油醚活性部位及其主要单体成分二十八烷）的抗缺氧药效学。 方法 首先采用常压密闭缺氧耐受力实验和急性减压缺氧耐受力实验联合评价大苞雪莲石油醚部位和二十八烷的抗缺氧活性，然后采用3种化学中毒缺氧模型（氰化钾、亚硝酸钠、盐酸异丙肾上腺素）进行其抗化学中毒缺氧活性的药效学评估。 结果 大苞雪莲石油醚部位和二十八烷可以有效延长常压密闭缺氧小鼠的存活时间（P<0.01），降低急性减压缺氧小鼠的死亡率（P<0.01），且具有剂量依赖关系；化学中毒缺氧药效学研究表明，石油醚部位和二十八烷在化学中毒缺氧实验中的小鼠存活时间均明显大于乙酰唑胺（P<0.05）。 结论 大苞雪莲石油醚部位和二十八烷具有良好的抗缺氧活性。Abstract: Objective To study pharmacodynamics of the effective anti-hypoxia components in the petroleum ether extract of Saussurea Involucrate (PESI) and octacosane. Methods PESI and octacosane were first evaluated by normobaric hypoxia model, acute decompression model and followed by chemical induced hypoxic models with potassium cyanide, sodium nitrite and isoprenaline hydrochloride poisoning. Results PESI and octacosane can effectively prolong the survival time of hypobaric hypoxic mice (P<0.01) and reduce the mortality of acute hypobaric hypoxia mice (P<0.01) in a dose-dependent manner. Anti-hypoxic potency of PESI and octacosane obtained by chemical induced hypoxic model indicated that they significantly increase survival time(P<0.05)of hypoxia mice than acetazolamide. Conclusion PESI and octacosane have good anti-hypoxia activity.
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Key words:
- Saussurea involucrata /
- anti-hypoxia activity /
- petroleum ether extract /
- octacosane
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