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Related to Inhibins: Activin B


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.


(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)


(ɪnˈhɪb ɪn)
a male hormone that acts on the pituitary gland to limit the secretion of FSH.
[1980–85; inhib (it) + -in1]
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References in periodicals archive ?
had isolated two forms of inhibins, which had a common subunit [alpha] and a specific subunit [beta] ([beta]A or [beta]B) (Mason et al.
Inhibins are produced primarily by granulosa cells and act on the pituitary by inhibiting FSH production(39).
Transforming growth factor-[beta]s (TGF-[beta]s), activins, inhibins, bone morphogenetic proteins (BMPs), growth differentiation factors (GDFs), Lefty, Nodal, and anti-Mullerian hormone make up a large superfamily of secreted signaling proteins that play key roles in embryonic development and adult tissue homeostasis (Wu and Hill, 2009).
Like inhibins, they were originally described as being gonadally produced regulators of pituitary hormone release, but they are currently known to have a broader range of effects (Phillips, 2005).
Comparison of preovulatory follicular concentrations of epidermal growth factor, insulin-like growth factor-I, and inhibins A and B in women undergoing assisted conception treatment with gonadotropin-releasing hormone (GnRH) agonists and GnRH antagonists.
Dimeric inhibins in girls from birth to adulthood: relationship with age, pubertal stage, FSH and oestradiol.
In the first part of this volume the basic concepts of transforming growth factor [Beta], or TGF[Beta], signaling in normal physiology and cancer pathobiology are described in 32 chapters, with topics that include TGF[Beta] availability, regulators of Smad activity by phosphorylation, activins and inhibins in cancer progression, and uterine sensitization associated Gene-1.
Source of circulating levels of inhibin A, pro [alpha] C-containing inhibins and activin A in early pregnancy.
Other proposed methods include vaginal ultrasound to measure ovarian volume and number of antral follicles and assays for inhibins, but currently the test characteristics for these are inferior to less invasive and less costly methods.
Inhibins are glycoprotein hormones secreted by the ovaries in nonpregnant women and by the placenta.
During her time there, Gill conducted research - culminating in a PhD - into the group of hormones known as inhibins.
stated, "The acquisition of OBI positions DSL as the exclusive global provider of diagnostic tests for the measurement of Inhibins and Activins.