Collagen concentration on the facial skin of postmenopausal women after topical treatment with estradiol and genistein: a randomized double-blind controlled trial.

Autor: Silva LA; a UFBA , Salvador , Brazil., Ferraz Carbonel AA; b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil., de Moraes ARB; b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil., Simões RS; c Department of Obstetrics and Gynecology , University of São Paulo , São Paulo , Brazil , and., Sasso GRDS; d Department of Morphology and Genetics , Federal University of São Paulo , São Paulo , Brazil., Goes L; b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil., Nunes W; b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil., Simões MJ; b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil., Patriarca MT; b Department of Morphology and Genetic , Universidade Federal de Sao Paulo , Sao Paulo , Brazil.
Jazyk: angličtina
Zdroj: Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology [Gynecol Endocrinol] 2017 Nov; Vol. 33 (11), pp. 845-848. Date of Electronic Publication: 2017 May 16.
DOI: 10.1080/09513590.2017.1320708
Abstrakt: Objective: The objective of this study is to compare the effects of topical estrogen and genistein (a soy isoflavone) on the facial skin collagen of postmenopausal women not undergoing systemic hormonal therapy.
Methods: This is a prospective, double blind, randomized, controlled clinical trial. Volunteer women (N = 30) 45-55 year old from the Endocrine Gynecology sector of the Gynecology Department of the Federal University of São Paulo (UNIFESP). The Ethical Committee of the Federal University of São Paulo approved the study (report no. 386/2004; registration on ClinicalTrials.gov NCT01553773), were assigned to topical treatment with either estrogen or genistein for 24 weeks. We quantified and compared facial collagen concentration before and after each treatment by performing pre-auricular skin biopsies.
Results: Our data showed an increase in the amount of both type I and type III facial collagen by the end of both treatments. However, the outcomes of the estrogen GI (ER) group were superior to the genistein GII (GEN) group, with statistical significance p < 000.1 Conclusion: Treatment with topical estrogen is superior to genistein, but both have positive impacts on facial skin collagen. Nevertheless, it is still unclear whether prolonged use of genistein and other topical phytoestrogens could produce systemic effects and further research is needed to clarify this question.
Databáze: MEDLINE
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