目的观察逆针灸“关元”对去卵巢大鼠的影响,探讨其调节围绝经期综合征下丘脑-垂体-卵巢(HPO)轴的机制。方法将3月龄SD雌性大鼠48只随机分为正常组、假手术组、去卵巢组、逆针关元组、逆灸关元组。术前30 d给逆针关元组和逆灸关元组予以针刺或艾灸,随后制作去卵巢大鼠模型,除正常组和假手术组外,其余组均行去卵巢手术。采用酶联免疫法测定大鼠下丘脑、垂体及子宫的促性腺激素释放激素(GnRH)、卵泡刺激素(FSH)、促黄体生成激素(LH)、雌二醇(E2)、雌激素受体(ER)的水平变化。结果与正常组比较,模型组E2、ER和GnRH水平显著降低(P＜0.01),FSH和LH的水平显著升高(P＜0.01)。与模型组比较,逆针和逆灸组E2、ER和GnRH水平均不同程度升高(P＜0.05),FSH和LH水平不同程度降低(P＜0.05)。逆针组和逆灸组比较,组间差异无统计学意义(P＞0.05)。结论逆针和逆灸“关元”均能良性地调节去卵巢大鼠HPO轴的紊乱,其对HPO轴的作用强度基本相同。%Objective To observe the regulatory effects of the preventive acupuncture and moxibustion at Guanyuan (RN4) points in ovariectomized rats, and discuss the mechanism of preventive acupuncture and moxibustion on hyoathalamus-pituitary-ovary (HPO) axis. Methods Totally 48 female SD rats were divided into 5 groups, including normal group, sham operation group, ovariectomized rats group, preventive acupuncture group and preventive moxibustion group. Except normal group and sham operation group, rats were ovariectomized after preventive acupuncture and preventive moxibustion for 30 d in corresponding groups. ELISA was used to determine the levels of E2, ER, GnRH, FSH and LH in the tissues including hypophysis, hypothalamus and uterus. Results Compared with the normal group, E2, ER and GnRH level in the tissue of the model group was significantly lower (P<0.01), the levels of FSH and LH increased obviously (P<0.01). Compared with the model group, E2, ER and GnRH level of preventive acupuncture group and preventive moxibustion group increased in different degree (P<0.05). FSH and LH level reduced in different degree (P <0.05). There was no obvious difference between preventive acupuncture and preventive moxibustion group (P>0.05). Conclusions The preventive acupuncture and preventive moxibustion at Guanyuan (RN4) has benign modulation to disordered HPO axis of ovariectomized rats. The ability of preventive acupuncture and preventive moxibustion are almost the same.
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