Tibolone Has Anti-Inflammatory Effects in Estrogen-Deficient
Regulatory Peptides 179 (2012) 55–60 Contents lists available at SciVerse ScienceDirect Regulatory Peptides journal homepage: www.elsevier.com/locate/regpep Tibolone has anti-inflammatory effects in estrogen-deficient female rats on the natriuretic peptide system and TNF-alpha Ana Raquel Santos de Medeiros a,b, Aline Zandonadi Lamas b, Izabela Facco Caliman b, Polyana L. Meireles Dalpiaz b, Luciana Barbosa Firmes c, Gláucia Rodrigues de Abreu b, Margareth Ribeiro Moysés b, Elenice Moreira Lemos d, Adelina Martha dos Reis c, Nazaré Souza Bissoli b,⁎ a Biological and Health Sciences, Federal Institute of Espírito Santo, Vila Velha, ES, Brazil b Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, ES, Brazil c Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil d Center of Infectious Diseases, Federal University of Espírito Santo, Vitória, ES, Brazil article i nfo abstract Article history: Cardiovascular and immune system abnormalities have been reported in females with estrogen deficiency. Received 25 April 2012 To control these disorders in post-menopausal women, hormone replacement therapy (HRT) has been Received in revised form 10 August 2012 used. Tibolone has been used as a HRT, but the effects of tibolone on the natriuretic peptide system have Accepted 29 August 2012 not been determined. We investigated the effects of tibolone on the natriuretic peptide system and Available online 10 September 2012 pro-inflammatory cytokines in ovariectomized (OVX) rats. Female rats were divided into four groups: SHAM, OVX, OVX treated with 17β-estradiol (OVX+E: 14 days) and OVX treated with tibolone (OVX+T: Keywords: Ovariectomy 14 days) beginning 21 days after ovariectomy.
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