Objective: To observe the effect of electroacupuncture (EA) on the hormones derived from the hypothalamus-pituitary-ovary (HPO) axis, so as to explore the neuroendocrine mechanism induced by EA on rats with perimenopausal depression disorder.
Methods: Sixty female sprague-dawley rats were randomly divided into blank control group, model group, sham-operation (sham) group, clomipramine group, and electroacupuncture (EA) group, with 12 rats in each group. Perimenopausal depression model was established by bilateral ovariectomy combined with chronic unpredictable stimulation.The EA group received continuous treatment at "Baihui" (GV 20), "Shenshu" (BL 23) and "Sanyinjiao" (SP 6) once a day for 28 days. Estrous cycle and sucrose preference test were monitored, and serum estradiol (E), luteinizing hormone (LH), gonadotropin releasing hormone (GnRH), and β-endorphin (β-EP) were detected by ELISA.
Results: Compared to the blank control group, sugar water consumpution rates decreased in the model group and sham group (<0.05). Compared to the blank group and sham group, the serum LH and GnRH levels increased (<0.05), companied with lower serum E and β-EP levels in the model group (<0.05). Compared to the model group, sugar water consumpution rates increased in the clomipramine group and EA group (<0.05), both were companied with decreased serum LH and GnRH levels (<0.05), and higher serum E and β-EP levels (<0.05).
Conclusions: Electroacupuncture can relieve the symptoms of rat with perimenopausal depression by regulating the hormone secretion in HPO axis.
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