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Abstract Background The molecular mechanisms underlying the sex differences in human muscle morphology and function remain to be elucidated. The sex differences in the skeletal muscle transcriptome in both the resting state and following anabolic stimuli, such as resistance exercise RE , might provide insight to the contributors of sexual dimorphism of muscle phenotypes. We used microarrays to profile the transcriptome of the biceps brachii of young men and women who underwent an acute unilateral RE session following 12 weeks of progressive training. Bilateral muscle biopsies were obtained either at an early 4 h post-exercise or late recovery 24 h post-exercise time point. A logistic regression-based method LRpath , following Bayesian moderated t-statistic IMBT , was used to test gene functional groups and biological pathways enriched with differentially expressed genes. Results This investigation identified extensive sex differences present in the muscle transcriptome at baseline and following acute RE.Sex differences in skeletal muscle transcriptional regulation might implicate a mechanism behind disproportional muscle growth in males as. dezayo.us gay muscle videos, free sex videos. Muscle gay anal sex with cumshot hot muscular older latin african american men having hard anal sex. Interracial outdoor anal fucking with muscular homosexuals Young gay roughly ass fucked by muscular blond officer Moving Company - Muscle Men. 1 h ..the end of the story look at the video above ↑ ↑ ↑

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