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Time-restricted feeding alters lipid and amino acid metabolite rhythmicity without perturbing clock gene expression

Abstract : Time-restricted feeding (TRF) improves metabolism independent of dietary macronutrient composition or energy restriction. To elucidate mechanisms underpinning the effects of short-term TRF, we investigated skeletal muscle and serum metabolic and transcriptomic profiles from 11 men with overweight/obesity after TRF (8 h day-1) and extended feeding (EXF, 15 h day-1) in a randomised cross-over design (trial registration: ACTRN12617000165381). Here we show that muscle core clock gene expression was similar after both interventions. TRF increases the amplitude of oscillating muscle transcripts, but not muscle or serum metabolites. In muscle, TRF induces rhythmicity of several amino acid transporter genes and metabolites. In serum, lipids are the largest class of periodic metabolites, while the majority of phase-shifted metabolites are amino acid related. In conclusion, short-term TRF in overweight men affects the rhythmicity of serum and muscle metabolites and regulates the rhythmicity of genes controlling amino acid transport, without perturbing core clock gene expression.
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Submitted on : Tuesday, September 29, 2020 - 2:47:47 PM
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Leonidas Lundell, Evelyn Parr, Brooke Devlin, Lars Ingerslev, Ali Altıntaş, et al.. Time-restricted feeding alters lipid and amino acid metabolite rhythmicity without perturbing clock gene expression. Nature Communications, Nature Publishing Group, 2020, 11 (1), pp.4643. ⟨10.1038/s41467-020-18412-w⟩. ⟨inserm-02952614⟩

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