PMID- 25333960 OWN - NLM STAT- MEDLINE DCOM- 20150626 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 10 DP - 2014 TI - Running a marathon induces changes in adipokine levels and in markers of cartilage degradation--novel role for resistin. PG - e110481 LID - 10.1371/journal.pone.0110481 [doi] LID - e110481 AB - Running a marathon causes strenuous joint loading and increased energy expenditure. Adipokines regulate energy metabolism, but recent studies have indicated that they also exert a role in cartilage degradation in arthritis. Our aim was to investigate the effects of running a marathon on the levels of adipokines and indices of cartilage metabolism. Blood samples were obtained from 46 male marathoners before and after a marathon run. We measured levels of matrix metalloproteinase-3 (MMP-3), cartilage oligomeric protein (COMP) and chitinase 3-like protein 1 (YKL-40) as biomarkers of cartilage turnover and/or damage and plasma concentrations of adipokines adiponectin, leptin and resistin. Mean marathon time was 3:30:46+/-0:02:46 (h:min:sec). The exertion more than doubled MMP-3 levels and this change correlated negatively with the marathon time (r = -0.448, p = 0.002). YKL-40 levels increased by 56% and the effect on COMP release was variable. Running a marathon increased the levels of resistin and adiponectin, while leptin levels remained unchanged. The marathon-induced changes in resistin levels were positively associated with the changes in MMP-3 (r = 0.382, p = 0.009) and YKL-40 (r = 0.588, p<0.001) and the pre-marathon resistin levels correlated positively with the marathon induced change in YKL-40 (r = 0.386, p = 0.008). The present results show the impact of running a marathon, and possible load frequency, on cartilage metabolism: the faster the marathon was run, the greater was the increase in MMP-3 levels. Further, the results introduce pro-inflammatory adipocytokine resistin as a novel factor, which enhances during marathon race and associates with markers of cartilage degradation. FAU - Vuolteenaho, Katriina AU - Vuolteenaho K AD - The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland. FAU - Leppanen, Tiina AU - Leppanen T AD - The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland. FAU - Kekkonen, Riina AU - Kekkonen R AD - Institute of Biomedicine, Pharmacology, University of Helsinki, Helsinki, Finland. FAU - Korpela, Riitta AU - Korpela R AD - Institute of Biomedicine, Pharmacology, University of Helsinki, Helsinki, Finland. FAU - Moilanen, Eeva AU - Moilanen E AD - The Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141021 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Adipokines) RN - 0 (Adiponectin) RN - 0 (CHI3L1 protein, human) RN - 0 (Cartilage Oligomeric Matrix Protein) RN - 0 (Chitinase-3-Like Protein 1) RN - 0 (Lectins) RN - 0 (Leptin) RN - 0 (Resistin) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) SB - IM MH - Adipokines/*blood MH - Adiponectin/blood MH - Adult MH - Body Mass Index MH - Cartilage/*metabolism MH - Cartilage Oligomeric Matrix Protein/blood MH - Chitinase-3-Like Protein 1 MH - Humans MH - Lectins/blood MH - Leptin/blood MH - Male MH - Matrix Metalloproteinase 3/blood MH - Middle Aged MH - Resistin/blood MH - Running PMC - PMC4204875 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/10/22 06:00 MHDA- 2015/06/27 06:00 PMCR- 2014/10/21 CRDT- 2014/10/22 06:00 PHST- 2014/06/27 00:00 [received] PHST- 2014/09/22 00:00 [accepted] PHST- 2014/10/22 06:00 [entrez] PHST- 2014/10/22 06:00 [pubmed] PHST- 2015/06/27 06:00 [medline] PHST- 2014/10/21 00:00 [pmc-release] AID - PONE-D-14-28602 [pii] AID - 10.1371/journal.pone.0110481 [doi] PST - epublish SO - PLoS One. 2014 Oct 21;9(10):e110481. doi: 10.1371/journal.pone.0110481. eCollection 2014.