Inhibin, Alpha antibody [BC/R1] recognizes the 32 kDa alpha subunit of human inhibin. Inhibin is a peptide hormone that is produced by ovarian granulosa cells which inhibits the release of Follicle-Stimulating Hormone (FSH). The Inhibin alpha antibody subunit is expressed in a wide range of human tissues outside the reproductive axis such as prostate, brain, adrenal, as well as in the granulosa cells of the ovary, Sertoli cells of the testis and various cells of the fetoplacental unit. Inhibin may be used as a differential marker for adrenocortical tumors, placenta and gestational trophoblastic lesions and sex cord stromal tumors.
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