促黄体釋放素(LRH)是1971年由美国学者Schally和Guillemin从数十万头猪和羊的下丘脑中分离提纯而获得的一种下丘脑激素,现已明确为一小分子+肽化合物,具有极强的生物活性,其微克量即可引起垂体—性腺轴系统激素分泌及其生理效应的明显反应。进一步研究还证明:当使用小剂量LRH及其激动性类似物时,可明显刺激或兴奋下丘脑—垂体—性腺轴功能,具有促生育作用。而当大剂 Luteinizing hormone releasing hormone (LHH) is a hypothalamic hormone obtained from the hypothalamus of hundreds of thousands of pigs and sheep in 1971 by the American scholar Schally and Guillemin. It has been identified as a small molecule + peptide compound, Has a strong biological activity, the amount of its grams can cause pituitary gonadal axis hormone secretion and the physiological response of the obvious response. Further studies have also demonstrated that the use of low-dose LRH and its agonistic analogues can significantly stimulate or excite the hypothalamic-pituitary-gonadal axis and promote fertility. And when the big agent