在脑及垂体中发现了内源性鸦片样肽,促使人们去研究其生理作用.β-内啡肽是其中活性最强的一种,由31个氨基酸组成.有报告指出,β-内啡肽参与调控促性腺激素的分泌及月经周期.已证明,在多毛症、肥胖、闭经以及某些多囊卵巢病患者,血浆β-内啡肽水平高于正常.除下丘脑及垂体能合 Endogenous opioid peptides have been found in the brain and pituitary gland, leading people to study their physiological role.β-endorphin is one of the most active and consists of 31 amino acids.It has been reported that β-endorphin Peptides are involved in the regulation of gonadotropin secretion and menstrual cycle It has been shown that in patients with hirsutism, obesity, amenorrhea, and some polycystic ovarian disease, plasma levels of beta-endorphin are higher than normal except for hypothalamus and pituitary gland energy