Doebler JA, Wickersham EW, Anthony A. Quantitative cytochemical analyses of ovarian luteal and interstitial cell RNA in relation to plasma progestins during pseudopregnancy in the rat.
Cell Biochem Funct 1983;
1:173-8. [PMID:
6205787 DOI:
10.1002/cbf.290010310]
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Abstract
Luteal and interstitial cell RNA contents and circulating progesterone (P) and 20 alpha-hydroxypregn-4-ene-3-one (20 alpha-OH P) levels were measured during pseudopregnancy in order to characterize relationships between ovarian 20 alpha-OH P secretion and luteal regression. Functional luteolysis, as manifested in depressed P levels, was not associated with concurrent elevations in 20 alpha-OH P. Rather, augmented 20 alpha-OH P levels were evidenced in periovulatory periods at the onset and termination of pseudopregnancy, subsequent to RNA accumulation in both luteal and interstitial compartments. It is postulated that 20 alpha-OH P, the putative inactive metabolite of P, is produced by both ovarian compartments in a cyclic manner and in response to gonadotrophin released in the preovulatory period.
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