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Leucine, a branched-chain amino acid, has been shown to promote glucose uptake and increase insulin sensitivity in skeletal muscle, but the exact mechanism remains unestablished. We addressed this issue in cultured skeletal muscle cells in this study. Our results showed that leucine alone did not have an effect on glucose uptake or phosphorylation of protein kinase B (AKT), but facilitated the insulin-induced...
ScopeThis study investigated the effect of chronic leucine supplementation on insulin sensitivity and the associated mechanisms in rats on high‐fat diet (HFD).
Methods and resultsMale Sprague–Dawley rats were fed either normal chow diet or HFD supplemented with 0, 1.5, 3.0, and 4.5% leucine for 24 weeks. We found that chronic leucine supplementation increased insulin sensitivity together with increased...
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