inhibin


Also found in: Medical, Wikipedia.
Related to inhibin: GnRH

in·hib·in

 (ĭn-hĭb′ĭn)
n.
A peptide hormone secreted by the follicular cells of the ovary and the Sertoli cells of the testis that inhibits secretion of follicle-stimulating hormone from the anterior pituitary.

inhibin

(ɪnˈhɪbɪn)
n
(Biology) biology a peptide hormone, produced by both the ovary and the testis, that inhibits (and thus regulates) the production of FSH (follicle-stimulating hormone)

in•hib•in

(ɪnˈhɪb ɪn)
n.
a male hormone that acts on the pituitary gland to limit the secretion of FSH.
[1980–85; inhib (it) + -in1]
Mentioned in ?
References in periodicals archive ?
An inhibin molecule is composed of an [alpha]-subunit and a [beta]-subunit.
As a woman ages and her egg supply declines, cells in the ovary secrete lower amounts of inhibin B and anti-Mllerian hormone, substances considered to be indicators of ovarian reserve.
Objectives: To investigate the frequency of mutations in catalase-peroxidase and inhibin alpha genes in clinical isolates of isoniazid resistant Mycobacterium tuberculosis strains.
Inhibin and HCG stains syncytiotrophoblasts selectively.
Hormone analysis (FSH, luteinizing hormone (LH), estradiol (E2), antimullerian hormone (AMH), inhibin B, prolactin, progesterone, testosterone, free thyroxine (fT4) and thyroid-stimulating hormone (TSH)) is necessary.
The control includes AFP, Free Estriol, hCG and Inhibin A, making it ideal for laboratories performing triple or quadruple marker screening.
In addition to activin and MSTN, ActRIIB can bind other TGF-[beta] family members, such as GDF-11, inhibin, Nodal, BMP-2, and BMP-7 (Gray et al.
Histologic evaluation of the mass showed cytologically bland tumor cells with vascular proliferation, which were positive for cluster of differentiation (CD) 31 and CD34 as well as negative for inhibin, glucose transporter 1 (GLUT-1), and epithelial membrane antigen (EMA), consistent with a capillary hemangioma (Figure 4).
The immunohistochemical profile (coexpression of vimentin, inhibin, scattered cytokeratin, and CD56) was consistent with testicular GCT (Figure 2).
Activins are heterodimers (AYAAYB, activin AB) or two homodimers (AYAAYA, activin-A; AYBAYB, activin B) of the AY subunits of inhibin.
The placenta of a normal pregnancy secretes small amounts of a variety of biomarkers such as alpha-fetoprotein (AFP), human chorionic gonadotropin, unconjugated estriol, inhibin A, pregnancy-associated placental protein A (PAPP-A), soluble fms-like tyrosine kinase, and placental growth factor.