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• W2322336991 abstract "Progesterone (P4) plays a central role in women's health. Synthetic progestins are used clinically in hormone replacement therapy (HRT), oral contraceptives, and for the treatment of endometriosis and infertility. Unfortunately, synthetic progestins are associated with side effects, including cardiovascular disease and breast cancer. Botanical dietary supplements are widely consumed for the alleviation of a variety of gynecological issues, but very few studies have characterized natural compounds in terms of their ability to bind to and activate progesterone receptors (PR). Kaempferol is a flavonoid that functions as a non-steroidal selective progesterone receptor modulator (SPRM) in vitro. This study investigated the molecular and physiological effects of kaempferol in the ovariectomized rat uteri.Since genistein is a phytoestrogen that was previously demonstrated to increase uterine weight and proliferation, the ability of kaempferol to block genistein action in the uterus was investigated. Analyses of proliferation, steroid receptor expression, and induction of well-established PR-regulated targets Areg and Hand2 were completed using histological analysis and qPCR gene induction experiments. In addition, kaempferol in silico binding analysis was completed for PR. The activation of estrogen and androgen receptor signalling was determined in vitro.Molecular docking analysis confirmed that kaempferol adopts poses that are consistent with occupying the ligand-binding pocket of PRA. Kaempferol induced expression of PR regulated transcriptional targets in the ovariectomized rat uteri, including Hand2 and Areg. Consistent with progesterone-l ke activity, kaempferol attenuated genistein-induced uterine luminal epithelial proliferation without increasing uterine weight. Kaempferol signalled without down regulating PR expression in vitro and in vivo and without activating estrogen and androgen receptors.Taken together, these data suggest that kaempferol is a unique natural PR modulator that activates PR signaling in vitro and in vivo without triggering PR degradation." @default.
• W2322336991 created "2016-06-24" @default.
• W2322336991 creator A5015560334 @default.
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• W2322336991 date "2013-01-01" @default.
• W2322336991 modified "2023-10-14" @default.
• W2322336991 title "Kaempferol Exhibits Progestogenic Effects in Ovariectomized Rats" @default.
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• W2322336991 doi "https://doi.org/10.4172/2157-7536.1000136" @default.
• W2322336991 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4382015" @default.
• W2322336991 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25844270" @default.
• W2322336991 hasPublicationYear "2013" @default.
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