17 alpha estradiol/necrosis

Recent studies in several animal models have suggested that estrogen, given for the short term, may protect ischemic myocardium. Our objective was to test the effect of exogenous estradiol on the development of myocardial necrosis. Twenty minutes before coronary occlusion, rabbits were given an IV

The mechanisms by which the sex hormones achieve their bone-sparing effects remains unresolved. Interleukin-1 beta (IL-1 beta) is an autocrine/paracrine regulator of bone that may be produced in an estrogen-sensitive manner. The regulation of IL-1 beta production by the gonadal steroids was tested

Aim: The purpose of this study was to evaluate whether pharmacologic treatments or genotypes shown to prolong murine lifespan ameliorate the severity of age-associated osteoarthritis. Materials and Methods: Male UM-HET3 mice were fed diets containing 17-α-estradiol, acarbose,

Although several studies have demonstrated that chronic exposure to estrogen appears to be cardioprotective, acute circulatory effects of estrogen are largely unknown. Therefore, we studied the effects of acute administration of 17 beta-estradiol in myocardial ischemia/reperfusion. Cats were

The calcium-regulating hormone 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) is recognized as an immunomodulator. Members of the macrophage-monocyte lineage are targets for 1,25(OH)2D3 action. The hormone enhances the ability of bone marrow-derived macrophages (BMDMs) to produce H2O2, increases the

The effect of 17 beta-estradiol on interleukin-6 (IL-6) synthesis was examined in murine bone marrow-derived stromal cell lines, normal human bone-derived cells, and nontransformed osteoblast cell lines from mice and rats. In all these cell types IL-6 production was stimulated as much as 10,000-fold

The study of oxidative contributions to aging has reached sufficient maturity to support the development of interventional strategies designed to forestall or reverse protein cross-linking, oxidation of DNA and lipids, and mitochondrial senescence associated with chronic pathology and aging.