期刊
JOURNAL OF CELLULAR PHYSIOLOGY
卷 231, 期 7, 页码 1621-1627出版社
WILEY-BLACKWELL
DOI: 10.1002/jcp.25263
关键词
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资金
- Bernard Osher Foundation
- National Institutes of Health [PO1GM095467]
Acute inflammation is accompanied from its outset by the release of specialized pro-resolving mediators (SPMs), including resolvins, that orchestrate the resolution of local inflammation. We showed earlier that, in rats with subcutaneous inflammation of the back induced by carrageenan, stretching for 10min twice daily reduced inflammation and improved pain, 2 weeks after carrageenan injection. In this study, we hypothesized that stretching of connective tissue activates local pro-resolving mechanisms within the tissue in the acute phase of inflammation. In rats injected with carrageenan and randomized to stretch versus no stretch for 48h, stretching reduced inflammatory lesion thickness and neutrophil count, and increased resolvin (RvD1) concentrations within lesions. Furthermore, subcutaneous resolvin injection mimicked the effect of stretching. In ex vivo experiments, stretching of connective tissue reduced the migration of neutrophils and increased tissue RvD1 concentration. These results demonstrate a direct mechanical impact of stretching on inflammation-regulation mechanisms within connective tissue. J. Cell. Physiol. 231: 1621-1627, 2016. (c) 2015 Wiley Periodicals, Inc.
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