NCIt definition : Inhibins are peptide hormones, secreted by the follicular cells of the ovary and by
the testis, that negatively regulate the synthesis and secretion of follicle stimulating
hormone from the anterior pituitary. The detection of serum inhibins has been implicated
in association with reproductive disorders, including infertility and ovarian cancers.;
NCIt note : Both inhibin A and inhibin B are heterodimers consisting of an alpha subunit and a
beta A or beta B subunit linked by disulphide bonds. Both inhibins function as negative
regulators for FSH synthesis and secretion. Furthermore, serum concentrations of inhibins
transit from inhibin B to inhibin A dominance during menstrual cycle.;