Estrogen replacement therapy by transdermal estradiol administration

American Journal of Obstetrics and Gynecology
L R LauferH L Judd

Abstract

To determine whether the nonoral administration of estradiol (E2) might provide physiologic replacement without alteration of hepatic function, 20 postmenopausal women were studied before and after 3 weeks of treatment with either E2-containing transdermal therapeutic systems or placebo. Twenty premenopausal women were also studied. With E2-containing systems, serum E2 and estrone levels were restored to the premenopausal range. Variable responses of the different biochemical and biologic markers of the actions of E2 were observed. The most sensitive marker was vaginal cytology, with the E2 dosage reverting the maturation index to premenopausal values. Hot flashes, measured objectively, were reduced in frequency but not abolished. Serum levels of follicle-stimulating hormone and luteinizing hormone were lowered but remained higher than the premenopausal range. No significant changes were noted in urinary calcium/creatinine and hydroxyproline/creatinine ratios, which were used as markers of bone resorption. With active systems, no significant changes were noted in the concentrations of the hepatic proteins renin substrate and thyroxine-binding globulin or in the binding capacities of cortisol-binding globulin and sex hormone-bin...Continue Reading

Citations

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