PMID- 18003791 OWN - NLM STAT- MEDLINE DCOM- 20080226 LR - 20220408 IS - 0363-6119 (Print) IS - 0363-6119 (Linking) VI - 294 IP - 1 DP - 2008 Jan TI - Exercise accelerates cutaneous wound healing and decreases wound inflammation in aged mice. PG - R179-84 AB - The purpose of this study was to determine the effect of exercise on wound healing and inflammation in young (3 mo) and old (18 mo) female BALB/cByJ mice. Mice were assigned to either exercise or sedentary control (control) groups. The exercise group mice were run on a motorized treadmill at a moderate intensity 30 min/day for 8 days. All mice were given four full-thickness dermal wounds, and the rate of wound closure was assessed daily for 10 days. Four months later, the aged mice were rerandomized to treatment, wounded again in different locations, and wounds were harvested at 1, 3, or 5 days postwounding. Wound tissue was analyzed for IL-1beta, IL-6, keratinocyte chemoattractant (KC), monocyte chemoattractant protein-1 (MCP-1), and TNF-alpha protein. Myeloperoxidase (MPO) activity and F4/80 mRNA were assessed as an indirect measure of neutrophil and macrophage content, respectively. There was a trend (P = 0.10) for exercise to reduce wound size in young mice, and exercise significantly (P < 0.05) decreased wound size in old mice. TNF-alpha, KC, and MCP-1 were significantly (P < 0.05) lower in wounds from exercised old mice compared with control. No group differences were found for wound IL-1beta or IL-6, MPO activity, or F4/80 mRNA. Our data suggest that exercise accelerates the wound healing process in old mice. This improved healing response in the old mice may be the result of an exercise-induced anti-inflammatory response in the wound. FAU - Keylock, K Todd AU - Keylock KT AD - Department of Kinesiology and Community Health, University of Illinois, Urbana-Champaign, Urbana, IL 61801, USA. FAU - Vieira, Victoria J AU - Vieira VJ FAU - Wallig, Matthew A AU - Wallig MA FAU - DiPietro, Luisa A AU - DiPietro LA FAU - Schrementi, Megan AU - Schrementi M FAU - Woods, Jeffrey A AU - Woods JA LA - eng GR - R01 AG023580/AG/NIA NIH HHS/United States GR - R01 GM55238/GM/NIGMS NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20071114 PL - United States TA - Am J Physiol Regul Integr Comp Physiol JT - American journal of physiology. Regulatory, integrative and comparative physiology JID - 100901230 RN - 0 (Antigens, Differentiation) RN - 0 (Chemokines) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (monocyte-macrophage differentiation antigen) RN - EC 1.11.1.7 (Peroxidase) SB - IM MH - Aging/*physiology MH - Animals MH - Antigens, Differentiation/metabolism MH - Body Weight/physiology MH - Chemokines/metabolism MH - Eating/physiology MH - Female MH - Inflammation/physiopathology/*prevention & control MH - Mice MH - Mice, Inbred BALB C MH - Peroxidase/metabolism MH - Physical Conditioning, Animal/*physiology MH - Random Allocation MH - Skin/*injuries/metabolism/physiopathology MH - Tumor Necrosis Factor-alpha/metabolism MH - Wound Healing/*physiology EDAT- 2007/11/16 09:00 MHDA- 2008/02/27 09:00 CRDT- 2007/11/16 09:00 PHST- 2007/11/16 09:00 [pubmed] PHST- 2008/02/27 09:00 [medline] PHST- 2007/11/16 09:00 [entrez] AID - 00177.2007 [pii] AID - 10.1152/ajpregu.00177.2007 [doi] PST - ppublish SO - Am J Physiol Regul Integr Comp Physiol. 2008 Jan;294(1):R179-84. doi: 10.1152/ajpregu.00177.2007. Epub 2007 Nov 14.