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Biogerontology

, Volume 14, Issue 3, pp 231–245 | Cite as

Sex hormones and skeletal muscle weakness

  • Sarianna SipiläEmail author
  • Marco Narici
  • Michael Kjaer
  • Eija Pöllänen
  • Ross A. Atkinson
  • Mette Hansen
  • Vuokko Kovanen
Article

Abstract

Human ageing is accompanied with deterioration in endocrine functions the most notable and well characterized of which being the decrease in the production of sex hormones. Current research literature suggests that low sex hormone concentration may be among the key mechanism for sarcopenia and muscle weakness. Within the European large scale MYOAGE project, the role of sex hormones, estrogens and testosterone, in causing the aging-related loss of muscle mass and function was further investigated. Hormone replacement therapy (HRT) in women is shown to diminish age-associated muscle loss, loss in fast muscle function (power), and accumulation of fat in skeletal muscle. Further HRT raises the protein synthesis rate in skeletal muscle after resistance training, and has an anabolic effect upon connective tissue in both skeletal muscle and tendon, which influences matrix structure and mechanical properties. HRT influences gene expression in e.g. cytoskeletal and cell–matrix proteins, has a stimulating effect upon IGF-I, and a role in IL-6 and adipokine regulation. Despite low circulating steroid-hormone level, postmenopausal women have a high local concentration of steroidogenic enzymes in skeletal muscle.

Keywords

MYOAGE Ageing Hormone replacement therapy Steroids Postmenopause 

Notes

Acknowledgments

We acknowledge the support from EC FP7 Collaborative Project MYOAGE (GA-223576) for these studies. The Academy of Finland and Finnish Ministry of Culture and Education are acknowledged for support to the RCT and TWIN STUDIES. In testosterone studies we acknowledge support from Bayer Schering Pharma AG, Berlin, Germany, and Laboratories Besins International, Paris, France, for providing Testogel and placebo. We also thank Prof. Frederick Wu, Dr U. Srinivas-Shankar and and Dr Steve Roberts for their collaboration. Gerontology Research Center is a joint effort between the University of Jyväskylä and the University of Tampere, Finland.

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Sarianna Sipilä
    • 1
    Email author
  • Marco Narici
    • 2
  • Michael Kjaer
    • 3
  • Eija Pöllänen
    • 1
  • Ross A. Atkinson
    • 4
    • 5
  • Mette Hansen
    • 6
  • Vuokko Kovanen
    • 1
  1. 1.Gerontology Research CentreDepartment of Health Sciences, University of JyväskyläJyväskyläFinland
  2. 2.School of Graduate Entry Medicine and Health, University of NottinghamNottinghamUK
  3. 3.Department of Orthopedic SurgeryInstitute of Sports Medicine, Bispebjerg Hospital and Centre for Healthy Aging, Faculty of Health and Medical Sciences, University of CopenhagenCopenhagenDenmark
  4. 4.Greater Manchester Neurosciences Centre, Salford Royal NHS Foundation TrustSalfordUK
  5. 5.Manchester Academic Health Science Centre, The University of ManchesterManchesterUK
  6. 6.Section of Sport Science, Department of Public HealthAarhus UniversityAarhusDenmark

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