Gonadotro inhibits GnRH-stimulated gonadotropin secretion in the Sheep by action on the piltultary gonadotropes. Estradiol -17β (E₂) also at the level of the pitultary gonadotrope to exert negative and positive feedback effects on gonadotropin secretion. The positive effect facillitates the estrogen-induced surge in gonadotropin releasing hormone (GnRH) and LH. This study was undertakento de…
Postmenopausal women are at high risk of disease, such as coronary heart disease, stroke, mal ignancies, dementia and osteoporosis. Th is is due to decreased levels ofestrogen/estradiol, produced mainly in the ovaries, leading to reduced bone mineral density (BM D), which is the gold standard for diagnosis of osteoporosis. The purpose of the present study was to determine the relationship betwe…
The incidence of hypertension in menopausal and post menopausal women related to plasma estrogen level and sympathetic nervous activity. Estrogenmay have a specific effect to modulate adrenergic vasoconstriction by modulating adrenergic receptors. Blood vessels contractility is regulated mainly by the sympathetic nervous system, in aorta mediated particularly by α1D adrenergic receptor. We hyp…