A genetic variant in IL-15R α correlates with physical activity among European-American adults

Autor: Eric Selinsky, Niall M. Moyna, Linda S. Pescatello, Heather Gordish-Dressman, Paul S. Visich, Robert F. Zoeller, Eric P. Hoffman, Michael Bruneau, Garrett I. Ash, Paul D. Thompson, Joseph M. Devaney, Sean Walsh, Paul M. Gordon, Theodore J. Angelopoulos, Priscilla M. Clarkson
Rok vydání: 2018
Předmět:
Zdroj: Molecular Genetics & Genomic Medicine
ISSN: 2324-9269
DOI: 10.1002/mgg3.368
Popis: Background Interleukin‐15 (IL‐15) is a myokine associated with muscle strength, possibly by attenuating protein breakdown. A variant in the alpha‐receptor (IL‐15Rα 1775 A>C, rs2228059) partially modulates the muscle strength and size response to resistance training. We examined if this polymorphism associated with habitual physical activity among European‐American adults. Methods Men (n = 240, 23.7 ± 0.3 year, body mass index [BMI] 25.3 ± 0.3 kg/m2) and women (n = 292, 23.2 ± 0.3 year, 24.0 ± 0.3 kg/m2) were genotyped. Physical activity phenotypes were derived from the Paffenbarger Physical Activity Questionnaire. Analysis of covariance (ancova) tested log‐transformed differences between the IL‐15Rα genotype and physical activity phenotypes by gender with age and BMI as covariates. Results Men with the IL‐15Rα 1775AA genotype spent more time in light intensity physical activity (39.4 ± 2.4 hr/week) than men with the CC genotype (28.6 ± 2.3 hr/week, (p = .009). Conclusion Further research is needed to confirm our finding and determine the possible mechanisms by which the IL‐15Rα variant modulates light intensity physical activity.
Databáze: OpenAIRE