Istituto di Fisiologia Clinica     
Vassalle C., Prontera C., Zucchelli G. C., Maffei S. Effects of the estrogen replacement therapy on different biochemical markers of endothelial reactivity in recent postmenopausal healthy women. In: Immuno-analyse & Biologie spécialisée, vol. 20 pp. 181 - 185. Elsevier, 2005.
Abstract The risk of cardiovascular disease significantly increases after menopause. Accordingly, many evidences suggest that estrogens may positively affect the production of different vasoactive factors, such as nitric oxide, prostacyclin, endothelin-1 and catecholamines and induce favourable changes in lipid profile. However, although observational data indicate that hormone replacement therapy (HRT) reduces significantly the cardiovascular risk, recent results have added controversial data to the institution of HRT in postmenopausal women. These last studies present numerous bias, related to inclusion of a single combination HRT regimen, recruitment women of older age groups who began treatment years after menopause and generally with pre-existing coronary artery disease. In fact, it is known that aging and atherosclerotic injury may induce estrogen receptors depletion, endothelial dysfunction and thrombosis, thus potentially decreasing HRT efficacy. Therefore, particular attention must be paid to the age of the woman and the complexity of atheroscleriotic lesions as determinants of the response to HRT for each patient. Moreover, the maintenance of an healthy and normal functioning endothelium after menopause emerges as a major target to retain maximal cardiovascular benefit from this treatment.
Subject estrogen

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