Vascular Effect of Tibolone in the Brachial Artery

The interruption of the secretion of sex steroids occurring during menopause, causes a change in vascular pattern at various levels. As a result, several agencies have side effects that interfere with women\'s health. The use of hormone replacement therapy has contributed to the improvement in these effects. In previous studies the investigators showed the effect of sex steroids in premenopausal women in the conjugated equine estrogens, medroxyprogesterone acetate and tibolone in menopausal women, on the central retinal arteries. The aim of this study is to evaluate the effects of Tibolone in Flow-Mediated Dilatation of the brachial artery.