Title: Synthesis of vitellogenin and its uptake by the ovary in the catfish, Heteropneustes fossilis (bloch) in response to carp gonadotropin and its subunits
Abstract: The gonadotropic potency of purified carp gonadotropin (c-GTH) and its α- and β-subunits was tested by evaluating their actions on synthesis of vitellogenin and its uptake by the ovary in the hypophysectomized catfish, Heteropneustes fossilis. Daily treatment with c-GTH (1, 5, 10, and 25 μg/fish or 18, 80, 160, and 470 ng/g body wt) for 11 days evoked a dose-dependent vitellogenic response leading to formation of yolky oocytes; daily treatment with c-GTH subunits (α: 25 μg/fish or 396 ng/g body wt and β: 25 μg/fish or 450 ng/g body wt) for 11 days induced a low but significant formation of vitellogenin, the egg-yolk precursor, in serum without promoting its uptake into oocytes.
Publication Year: 1982
Publication Date: 1982-01-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 25
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