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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2010

Georgia State University

Physical Therapy

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Full-Text Articles in Medicine and Health Sciences

Estrogen Regulates Estrogen Receptors And Antioxidant Gene Expression In Mouse Skeletal Muscle, Kristen A. Baltgalvis, Sarah M. Greising, Gordon L. Warren, Dawn A. Lowe Apr 2010

Estrogen Regulates Estrogen Receptors And Antioxidant Gene Expression In Mouse Skeletal Muscle, Kristen A. Baltgalvis, Sarah M. Greising, Gordon L. Warren, Dawn A. Lowe

Physical Therapy Faculty Publications

Background: Estrogens are associated with the loss of skeletal muscle strength in women with age. Ovarian hormone removal by ovariectomy in mice leads to a loss of muscle strength, which is reversed with 17β-estradiol replacement. Aging is also associated with an increase in antioxidant stress, and estrogens can improve antioxidant status via their interaction with estrogen receptors (ER) to regulate antioxidant gene expression. The purpose of this study was to determine if ER and antioxidant gene expression in skeletal muscle are responsive to changes in circulating estradiol, and if ERs regulate antioxidant gene expression in this tissue.

Methodology/Principal Findings: Adult …