Title : A Potential Role for Endoplasmic Reticulum Stress in Progesterone Deficiency in Obese Women.

Pub. Date : 2017 Jan 1

PMID : 27886513






4 Functional Relationships(s)
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1 Pretreatment of human GLCs with tunicamycin inhibited hCG-stimulated expression of steroidogenic acute regulatory protein (StAR) and 3beta-hydroxysteroid dehydrogenase (3beta-HSD) messenger RNAs (mRNAs) without affecting expression of cytochrome P450 cholesterol side-chain cleavage enzyme (P450scc), as determined by real-time quantitative polymerase chain reaction. Tunicamycin hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1 Homo sapiens
2 Pretreatment of human GLCs with tunicamycin inhibited hCG-stimulated expression of steroidogenic acute regulatory protein (StAR) and 3beta-hydroxysteroid dehydrogenase (3beta-HSD) messenger RNAs (mRNAs) without affecting expression of cytochrome P450 cholesterol side-chain cleavage enzyme (P450scc), as determined by real-time quantitative polymerase chain reaction. Tunicamycin hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1 Homo sapiens
3 Pretreatment with tunicamycin also inhibited hCG-stimulated expression of StAR protein and 3beta-HSD enzyme activity in cultured human GLCs, as determined by Western blot analysis and an enzyme immunoassay, respectively, but did not affect hCG-induced intracellular 3",5"-cyclic adenosine monophosphate accumulation. Tunicamycin hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1 Homo sapiens
4 In vivo administration of tunicamycin to pregnant mare serum gonadotropin-treated immature mice prior to hCG treatment inhibited the hCG-stimulated increase in serum progesterone levels and hCG-induced expression of StAR and 3beta-HSD mRNA in the ovary without affecting serum estradiol levels or the number of corpora lutea. Tunicamycin hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1 Homo sapiens