PMID- 15256219 OWN - NLM STAT- MEDLINE DCOM- 20050131 LR - 20220317 IS - 0891-5849 (Print) IS - 0891-5849 (Linking) VI - 37 IP - 4 DP - 2004 Aug 15 TI - Oxidative stress and delayed-onset muscle damage after exercise. PG - 480-7 AB - Reactive oxygen species (ROS) produced during exercise may be involved in delayed-onset muscle damage related to inflammation. To investigate this hypothesis, we studied whether oxidative stress increases nuclear translocation of nuclear factor-kappaB and chemokine expression in skeletal muscle using myotube L6 cells. We also assessed whether prolonged acute exercise could increase these parameters in rats. In L6 cells, H(2)O(2) induced nuclear translocation of p65 and increased the expression of cytokine-induced neutrophil chemoattractant-1 (CINC-1) and monocyte chemoattractant protein-1 (MCP-1), whereas preincubation with alpha-tocopherol limited the increase in these proteins. Sprague Dawley rats were divided into the following groups: rested control, exercised, rested with a high alpha-tocopherol diet, and exercised with a high alpha-tocopherol diet. After 3 weeks of acclimation, both exercise groups ran on a treadmill at 25 m/min for 60 min. Exercise increased nuclear p65, CINC-1, and MCP-1 in gastrocnemius muscle cells, but these changes were ameliorated by the high alpha-tocopherol diet. Increases in myeloperoxidase and thiobarbituric acid-reactive substrates were ameliorated by a high alpha-tocopherol diet, as were the histological changes. Neutrophil activity was not altered by either exercise or a high alpha-tocopherol diet. These results indicate that delayed-onset muscle damage induced by prolonged exercise is partly related to inflammation via phagocyte infiltration caused by ROS and that alpha-tocopherol (an antioxidant) can attenuate such inflammatory changes. FAU - Aoi, Wataru AU - Aoi W AD - Department of Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan. waoi@koto.kpu-m.ac.jp FAU - Naito, Yuji AU - Naito Y FAU - Takanami, Yoshikazu AU - Takanami Y FAU - Kawai, Yukari AU - Kawai Y FAU - Sakuma, Kunihiro AU - Sakuma K FAU - Ichikawa, Hiroshi AU - Ichikawa H FAU - Yoshida, Norimasa AU - Yoshida N FAU - Yoshikawa, Toshikazu AU - Yoshikawa T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Free Radic Biol Med JT - Free radical biology & medicine JID - 8709159 RN - 0 (Antioxidants) RN - 0 (Calcium-Binding Proteins) RN - 0 (Chemokine CCL2) RN - 0 (Chemokines) RN - 0 (Membrane Glycoproteins) RN - 0 (NF-kappa B) RN - 0 (Nerve Tissue Proteins) RN - 0 (Reactive Oxygen Species) RN - 0 (Synaptotagmin I) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - 134193-27-4 (Synaptotagmins) RN - BBX060AN9V (Hydrogen Peroxide) RN - EC 1.11.1.7 (Peroxidase) RN - H4N855PNZ1 (alpha-Tocopherol) SB - IM MH - Active Transport, Cell Nucleus MH - Animals MH - Antioxidants/pharmacology MH - Calcium-Binding Proteins/metabolism MH - Cell Line MH - Chemokine CCL2/metabolism MH - Chemokines/metabolism MH - Enzyme-Linked Immunosorbent Assay MH - Hydrogen Peroxide/pharmacology MH - Inflammation MH - Membrane Glycoproteins/metabolism MH - Mice MH - Muscle, Skeletal/injuries/metabolism/*pathology MH - NF-kappa B/metabolism MH - Nerve Tissue Proteins/metabolism MH - Neutrophils/metabolism MH - Oxidation-Reduction MH - *Oxidative Stress MH - Peroxidase/metabolism MH - Physical Conditioning, Animal MH - Rats MH - Rats, Sprague-Dawley MH - Reactive Oxygen Species MH - Reverse Transcriptase Polymerase Chain Reaction MH - Synaptotagmin I MH - Synaptotagmins MH - Thiobarbituric Acid Reactive Substances/metabolism MH - Time Factors MH - Transcription, Genetic MH - alpha-Tocopherol/pharmacology EDAT- 2004/07/17 05:00 MHDA- 2005/02/03 09:00 CRDT- 2004/07/17 05:00 PHST- 2003/11/04 00:00 [received] PHST- 2004/03/31 00:00 [revised] PHST- 2004/05/07 00:00 [accepted] PHST- 2004/07/17 05:00 [pubmed] PHST- 2005/02/03 09:00 [medline] PHST- 2004/07/17 05:00 [entrez] AID - S0891584904003910 [pii] AID - 10.1016/j.freeradbiomed.2004.05.008 [doi] PST - ppublish SO - Free Radic Biol Med. 2004 Aug 15;37(4):480-7. doi: 10.1016/j.freeradbiomed.2004.05.008.