Progesterone products are available in prescription form as well as over-the-counter (OTC) topical preparations sold for "cosmetic" uses. In a randomized study design, the authors compared the drug exposure from an OTC progesterone cream to a Food and Drug Administration-approved oral preparation at the labeled daily doses recommended for each product. Twelve healthy postmenopausal women receiv...

background: geographic tongue (gt) was first reported as a wandering rash of the tongue in 1831; however, its etiopathogenesis remains unclear. increased prevalence of gt has been documented in the pregnancy. the aim of this study was to compare the level of salivary estrogen and progesterone in pregnant women with and without gt. materials and methods: this analytical-descriptive study consist...

BACKGROUND During early pregnancy, the most important task of the corpus luteum (CL) is to produce sufficient progesterone until the luteoplacental shift occurs. Progesterone production is closely related to the extensive vasculature surrounding and supplying the CL. The synthesis of both progesterone and factors controlling the vasculature in the CL is regulated by hCG, which is released initi...

Pieces of ovaries and tumors from 45 patients (19 with malignant epithelial tumors, 14 with benign epithelial tumors, and 12 with normal postmenopausal ovaries) were incubated, and the release of steroid hormones from different parts of the tumors and from the contralateral ovaries was measured. Tumor tissue (mainly tumor cells with a small number of stromal cells), tumor base tissue (more stro...

The effects of a progesterone antagonist (onapristone) on heat synchronization, luteinizing hormone (LH) surge, ovulation, oocyte maturation and fertilization of superovulated ewes were studied. Its effects on in vitro bovine oocyte maturation and fertilization were also studied. Estrus synchronization and superovulation treatments were applied to 39 adult ewes using an intravaginal sponge with...

Effects of progesterone and beta-estradiol on morphologic (germination velocity, root and shoot length) and biochemical (activities of alpha-amylase, superoxide dismutase, peroxidase and catalase, H2O2 content, lipid peroxidation) parameters during germination and post-germination stages of chickpea seeds were studied. The seeds germinated at various hormone concentrations (10(-4), 10(-9), 10(-...

BLOOD PROGESTERONE concentrations in zebu cows were measured at ILCA's research station in Debre Birhan, Ethiopia. Progesterone concentrations in unseparated plasma and serum samples declined rapidly, particularly at high storage temperatures (35°C). The commonly used anticoagulants––lithium heparin, sodium citrate and ethylene diaminetetracetate––did not significantly affect the measured conce...