Estrogen's role in cardiovascular health

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Artikelnummer:
1355500
  • Produktbeschreibung

    Estrogen's role in cardiovascular health

    The place of estrogen in women''s health remains §controversial. Premenopausal women have a lower §prevalence of cardiovascular disease (CVD) than men§and hormone replacement therapy (HRT) decreases CVD §in postmenopausal women. However, clinical trials§failed to substantiate a protective effect of HRT§and even showed some harm. Estrogen rapidly mediates§the activation of endothelial nitric oxide synthase§(eNOS) and increases production of nitric oxide§(NO), an important factor for endothelial health.§Distinctive results for eNOS, NO and superoxide§levels are highlighted by studies on acute and long§term effects of estrogen. In human endothelial§cells, apoptosis induced by oxidized low-density§lipoprotein and the cytokine TNF , associated with§atherosclerosis, is reduced by estrogen. Estrogen''s §angiogenic properties help healthy endothelium§respond to injury, but they also potentiate TNF -§induced angiogenesis, which revascularizes plaques§of women with advanced atherosclerosis and§exacerbates cardiovascular events. Researchers and §clinicians could appreciate this contribution to the §undestanding of the paradoxical effects of estrogen §on the vascular wall.
  • Zusatzinformation

    Autor
    Bindung
    Taschenbuch
    Verlag
    VDM Verlag Dr. Müller
    ISBN / EAN
    9783639152999
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