|You are in:Home/Publications/,Secretion of inhibin in female Japanese quails (Coturnix japonica) from hatch to sexual maturity. Sedqyar M, Weng Q, Watanabe G, Takahashi S, Suzuki AK, Taneda S, Taya K. J Reprod Dev. 2008 Feb;54(1):52-7.|
Dr. Prof. Mohamed Mahmoud Moustafa Kandiel :: Publications:
,Secretion of inhibin in female Japanese quails (Coturnix japonica) from hatch to sexual maturity. Sedqyar M, Weng Q, Watanabe G, Takahashi S, Suzuki AK, Taneda S, Taya K. J Reprod Dev. 2008 Feb;54(1):52-7.
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To clarify the cellular source and secretory pattern of inhibin in the Japanese quail during follicular development, the plasma concentrations of immunoreactive (ir) inhibin were measured from 1 to 7 weeks after hatching. Localization of the inhibin/activin alpha, beta A and beta B subunits was investigated by immunohistochemistry. To monitor development of the pituitary and ovarian functions, the plasma luteinizing hormone (LH) and progesterone concentrations were also measured. Ovarian weight increased gradually until 6 weeks of age and then abruptly increased at 7 weeks of age just at the onset of egg production. Plasma concentrations of LH increased significantly at 6 weeks of age. The plasma concentrations of ir-inhibin and progesterone and the pituitary contents of LH also increased significantly at 7 weeks of age. Immunohistochemically, the inhibin/activin alpha, beta A and beta B subunits were localized in the granulosa cells of all follicles during different stages of development from 1 to 7 weeks after hatching. The inhibin alpha, beta A and beta B subunits were also found in the interstitial cells but not theca cells of all follicles. These results demonstrated that the plasma concentrations of ir-inhibin of the female Japanese quails rose with ovarian development. The immunohistochemical results suggested that granulosa and interstitial cells are the major source of ovarian inhibins in female Japanese quails.