蛇床子香豆素对肾阳虚模型大鼠腺垂体──肾上腺皮质轴功能的影响

目的：探讨蛇床子香豆素补肾壮阳作用机理。方法：采用醋酸氢化可的松复制肾阳虚模型大鼠，用蛇床子素和蛇床子总香豆素（ＴＣＲ）给药，并用阳性对服药物作对照，测定大鼠血浆皮质酮（Ｂ）、促肾上腺皮质激素（ＡＣＴＨ）、肾素（ＰＲＡ）、血管紧张素－Ⅱ（ＡＴⅡ）和醛固酮（ＡＬＤ）的浓度。结果：与正常组比较，模型组的Ｂ和ＡＣＴＨ浓度明显降低（Ｐ＜０．０１），３个用药组与模型组比较，Ｂ和ＡＣＴＨ显著升高（Ｐ＜０．０１）。但各组间的ＰＲＡ、ＡＴ－Ⅱ和ＡＬＤ浓度均无显著性差异（Ｐ＞０．０５）。结论：蛇床子素和ＴＣＲ具有保护和增强腺垂体－肾上腺皮质轴功能的作用。

英文摘要:

To observe the effect of Cnidium monnieri in Kidney Yang Deficiency rats. Methods: Rats were injected intraperitoneally with hydrocortisone acetate to replicate the animal model of Kidney Yang Deficiency. Osthol, total-coumarins (TCR) from the fruit of Cnidium monnieri and positive control drug (PCD) were administered orally to model rats. The plasma levels of corticosterone (B), adrenocorticotropic hormone (ACTH), renin (PRA), angiotensin-Ⅰ (AT- Ⅱ ) and aldosterone (ALD) were determined by radioimmunoassay. Results: Compered with those in normal rats, the levels of B and ACTH in the plasma of model rats lowered significantly (P<0. 01), the levels of B and ACTH of treatment groups were higher than those of model group, while the levels of PRA, ATⅡ and ALD had no significant differnce (P>0. 05). Conclusion: The osthol, TCR have the effectsin protecting and strengthening the function of pituitary--adrenocortex axis.

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