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Effects of low dose of tibolone on steroid receptors and Bcl-2 on the postmenopausal endometrium

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dc.contributor.authorReis, Benedito Fabiano
dc.contributor.authorLima, Sonia Maria Rolim R.
dc.contributor.authorSilva, Gustavo Maximiliano D.
dc.contributor.authorFrancisco, Antonio Marcos C.
dc.contributor.authorBarbosa, Lyliana Coutinho R.
dc.contributor.authorArchangelo, Silvania C. Vieira
dc.contributor.authorGrande, Rogerio M.
dc.date.accessioned2021-07-23T09:09:00Z
dc.date.available2021-07-23T09:09:00Z
dc.date.issued2016
dc.description.abstractObjective: A prospective randomized controlled trial was conducted to evaluate the effect of low dose of tibolone on the histology, expression of estrogen (ER) and progesterone receptors (PR) and Bcl2 protein, in endometrium of postmenopausal women. Method: Forty postmenopausal women consented to treatment and were allocated into two groups of 20 women: Group 1 (Control) without hormone replacement therapy (HRT); Group 2 (Tibolone) treatment at the dose of 1.25 mg/day of oral tibolone administered for a 24-week period. The effect on the endometrium was assessed by histology and the apoptosis marker Bcl-2. The immunoexpression of ER and PR were also measured. Results: Tibolone group showed higher expression of ER, PR and Bcl-2 protein in glandular epithelium and stroma compared to control group. Conclusion: Tibolone in a daily dose of 1.25 mg during 24 weeks demonstrated endometrial action that resulted in low proliferation and was shown to lead to atrophic endometrium. It had favorable effects on the postmenopausal endometrium due to its higher immunoexpression of PR and Bcl-2 protein in endometrial glandular epithelium, thereby creating a balance between pro-apoptotic and anti-apoptotic actions.es
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dc.format.extent6es
dc.identifier.citationHistology and histopathology: Vol.31, nÂş6 (2016)
dc.identifier.doiDOI: 10.14670/HH-11-706
dc.identifier.issn1699-5848
dc.identifier.issn0213-3911
dc.identifier.urihttp://hdl.handle.net/10201/111301
dc.languageenges
dc.publisherUniversidad de Murcia. Departamento de BiologĂ­a Celular e HistologĂ­aes
dc.relationSin financiaciĂłn externa a la Universidades
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectMenopausees
dc.subjectEndometriumes
dc.subjectSteroid receptorses
dc.subjectBcl-2es
dc.subjectTibolonees
dc.subject.otherCDU::6 - Ciencias aplicadas::61 - Medicina::616 - PatologĂ­a. Medicina clĂ­nica. OncologĂ­aes
dc.titleEffects of low dose of tibolone on steroid receptors and Bcl-2 on the postmenopausal endometriumes
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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Histology and histopathology Vol.31, nÂş6 (2016)