title: Effects of Acute Moderate and Strenuous Exercise Bouts on IL-17 Production and Inflammatory Response in Trained Rats.
abstract: In this study, we aimed to compare the effects of a single bout of acute moderate and strenuous running exercise on the production of interleukin-17 (IL-17), interleukin-6 (IL-6), interleukin-1 receptor antagonist (IL-1ra) and inflammatory response of skeletal muscles in regularly trained rats. Eight week old rats were trained by treadmill running 5 days per week for 13 weeks at the durations of 30 min (moderate) and 60 min (strenuous). Two days after the last training session, the animals were subjected to a single bout of moderate or strenuous exercise and serum samples were analyzed for IL-17, IL-6, IL-1ra levels and myeloperoxidase (MPO) activity of gastrocnemius muscle were determined. IL-17 level significantly increased in strenuous exercise group when compared to that of sedentary controls (p < 0.01), On the other hand, only in the moderate exercise group, there was a negative correlation between IL-6 and IL-17 levels (r = - 0.857 and p = 0.014). In conclusion, acute single bout of strenuous exercise increased IL-17 production in trained rats and, this cytokine may be involved in inflammatory process of skeletal muscles. Key pointsA single bout of acute strenuous running exercise markedly elevated IL-17 production.This preliminary result should be supported by forthcoming studies that investigate the role of IL-17 in acute inflammatory process of skeletal muscle.
authors.affiliation: Department of Physiology, Inonu University Faculty of Medicine , 44280 Malatya, Turkey .
authors.forename: Halil
authors.initials: H
authors.lastname: Duzova
authors.forename: Yunus
authors.initials: Y
authors.lastname: Karakoc
authors.forename: Memet Hanifi
authors.initials: MH
authors.lastname: Emre
authors.forename: Zumrut Yilmaz
authors.initials: ZY
authors.lastname: Dogan
authors.forename: Evren
authors.initials: E
authors.lastname: Kilinc
keywords: Interleukin-17; cytokines; exercise; rat.; running