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Muscle Biopsy To Investigate Mitochondrial Turnover

  • Rocco Barazzoni

Abstract

Skeletal muscle biopsy is a long-established diagnostic used primarily as a diagnostic tool for neuromuscular disorders characterized by reduced muscle function and strength. For anatomical and functional characteristics, leg muscles and especially the vastus lateralis have been most commonly investigated. Percutaneous needles, which overcame the more invasive open biopsies, were introduced more than 50 years ago, with the original instruments named after Bergstrom [1], in honor of his pioneering work in their development (Fig. 8.1). When adequate suction is applied and a sufficient amount of muscle tissue is recovered, muscle biopsy allows for multiple measurements as well as the assessment of different anatomical or physiological parameters. Fiber and cell isolation, incubation, or culture are also possible and enable additional ex vivo studies. Muscular dystrophies, mitochondrial myopathies, and conditions often characterized by impaired muscle strength and function were early and obvious targets for diagnostic and research applications of muscle biopsy. Needle biopsy has been further extensively applied in the study of exercise physiology and pathophysiology, with the goal of investigating the regulation of mitochondrial function and substrate oxidation. In recent years, studies in the fields of obesity and diabetes have also focused on muscle mitochondrial function, and muscle biopsies have become increasingly common in human metabolic assessments.

Keywords

Caloric Restriction Muscle Biopsy Mitochondrial Biogenesis Human Skeletal Muscle Skeletal Muscle Biopsy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer-Verlag Italia 2012

Authors and Affiliations

  1. 1.Department of Medical, Surgical and Health SciencesUniversity of TriesteTriesteItaly

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