实验研究西藏芫根提取物的抗缺氧活性.通过建立小鼠常压缺氧模型、急性脑缺血性缺氧模型以及亚硝酸钠中毒模型,以蒸馏水作为空白对照,盐酸普萘洛尔作为阳性对照,观察芫根水、65%乙醇及95%乙醇提取物的10 g/kg、15 g/kg和20 g/kg剂量组对小鼠缺氧的保护作用,同时观察各提取物10 g/kg剂量组对红细胞数量和血红蛋白含量的影响.结果表明,芫根水提取物、65%乙醇提取物及95%乙醇提取物均能明显延长模型小鼠在常压缺氧、急性脑缺血性缺氧及亚硝酸钠中毒时的存活时间,并可增加外周血象中红细胞数与血红蛋白含量,显示芫根提取物具有抗缺氧活性.%The effect of Bassia rapa L. extract on anti-hypoxia was investigated. Using distilled water as a blank control and propranolol hydrochloride as a positive control, the survival time of mice in hypoxia under ordinary pressures, and with acute cerebral ischemia and sodium nitrite were used to evaluate the anti-hypoxic effect of three different doses (10, 15, 20 g/kg) of 65%, 95% alcohol extract and water extract of Bassia rapa L. Erythrocyte number and hemoglobin count were used to investigate the anti-hypoxic effect of 65%, 95% alcohol extract and water extract (10 g/kg) of Bassia rapa L. The result indicates that Bassia rapa L. 65%, 95% alcohol extract and water extract can prolong the survival time of mice in hypoxia under ordinary pressures significantly. It can also prolong the survival time of mice with acute cerebral ischemia and sodium nitrite significantly, and increase the number of erythrocytes and the content of hemoglobin. It demonstrates that Bassia rapa L. extract has anti-hypoxia activity.
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