内源性鸦片样物质(endogenous opiate 1ike substance)亦称内啡素(endorphins),主要分布在脑、垂体和胃肠道等处。在脑内,内啡素具有选择性的分布。在下丘脑正中隆起区域含量较高,提示它可能对垂体激素的分泌具有重要作用。许多作者报告,给动物脑室注射微量的β-内啡肽或脑啡肽,即可明显地促进垂体前叶促肾上腺皮质激素(ACTH)、生长 Endogenous opioid substances (endogenous opiate 1ike substance) also known as endorphins (endorphins), mainly in the brain, pituitary and gastrointestinal tract. Endorphins have a selective distribution in the brain. In the middle of the hypothalamus elevated area content, suggesting that it may have an important role in the secretion of pituitary hormone. Many authors report that injecting a small amount of β-endorphin or enkephalin into the ventricles of an animal can significantly promote the growth of anterior pituitary adrenocorticotropic hormone (ACTH)