A theory of eu-estrogenemia: a unifying concept.

Objective: The aim of the study was to propose a unifying theory for the role of estrogen in postmenopausal women through examples in basic science, randomized controlled trials, observational studies, and clinical practice.

Methods: Review and evaluation of the literature relating to estrogen.

Discussion: The role of hormone therapy and ubiquitous estrogen receptors after reproductive senescence gains insight from basic science models.

In Situ and In Vitro Effects of Two Bleaching Treatments on Human Enamel Hardness.

The aim of this study was to evaluate in vitro and in situ the effects of two bleaching treatments on human enamel surface microhardness. Sixty enamel slabs from recently extracted thirty molars were used. The specimens were polished with sandpapers under water-cooling.

Renal stones, timing hypothesis, and eu-estrogenemia.

Objective: The aim of this study was to apply the theory of the timing hypothesis to the data presented on the incidence of renal stones in the Women's Health Initiative and the theory of eu-estrogenemia.

Methods: The study is a review of the literature on the theory of renal stone formation and postmenopausal women, including data from the Nurses' Health Study and the Women's Health Initiative.

Results: The analysis of the hazard ratios and CIs of renal stones in the Women's Health Initiative shows that specific subgroups are affected.

Initial 17beta-estradiol dose for treating vasomotor symptoms.

Objective: To compare the efficacy of different doses of 17beta-estradiol (E2) for relief of vasomotor symptoms in menopausal women.

Methods: This was a randomized, double-masked, placebo-controlled, 12-week study in which 333 menopausal women with moderate or severe hot flushes were assigned to treatment with 0.25 mg, 0.

Plasma precursors of estrogen. III. Conversion of plasma dehydroisoandrosterone to estrogen in young nonpregnant women.

The utilization of plasma dehydroisoandrosterone for estrogen production was studied in 4 normal young nonpregnant women and in one young surgical castrate woman. The mean transfer constant for total conversion to estrogen, [sigma] DE-BU' was 0.0016 of which about one third (0.