雄性与雌性动物垂体的FSH分泌作用,似都部分地依赖于性腺类固醇化合物。Mc-Cullagh 1932年给能够阻止阉割动物垂体中出现去势细胞的水溶性睾丸内含物命名为抑制素(inhibin),此名称已一般用来称呼任何能对FSH分泌有负反馈作用的非类固醇的性腺因子。依其对FSH的特异性抑制(也不能排除其对LH分泌的影响),可给抑制素定义为:一种水溶性的、能对垂体释 FSH secretion in the pituitary gland of both males and females seems to be partly dependent on gonadal steroid compounds. Mc-Cullagh, in 1932, named the water-soluble testis that inhibits the appearance of castrated cells in the pituitary gland of castrate animals, and is commonly known as inhibin, a term commonly used to describe any nonsteroidal steroid that has a negative feedback on FSH secretion Gonadal factors. According to its specific inhibition of FSH (nor can it be ruled out its impact on LH secretion), inhibin can be defined as: a water-soluble, pituitary release