期刊
ANTIOXIDANTS & REDOX SIGNALING
卷 15, 期 9, 页码 2519-2528出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/ars.2011.3973
关键词
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资金
- National Heart, and Lung Institute [R01 HL-062361, R01 HL-072789, HL-087839]
Long periods of skeletal muscle inactivity promote a loss of muscle protein resulting in fiber atrophy. This disuse-induced muscle atrophy results from decreased protein synthesis and increased protein degradation. Recent studies have increased our insight into this complicated process, and evidence indicates that disturbed redox signaling is an important regulator of cell signaling pathways that control both protein synthesis and proteolysis in skeletal muscle. The objective of this review is to outline the role that reactive oxygen species play in the regulation of inactivity-induced skeletal muscle atrophy. Specifically, this report will provide an overview of experimental models used to investigate disuse muscle atrophy and will also highlight the intracellular sources of reactive oxygen species and reactive nitrogen species in inactive skeletal muscle. We then will provide a detailed discussion of the evidence that links oxidants to the cell signaling pathways that control both protein synthesis and degradation. Finally, by presenting unresolved issues related to oxidative stress and muscle atrophy, we hope that this review will serve as a stimulus for new research in this exciting field. Antioxid. Redox Signal. 15, 2519-2528.
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