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ObjectiveInsulin resistance and hyperinsulinaemia precede the onset of obesity‐induced DM2. The early adaptation of the β‐cell during the initial phase of overfeeding and weight gain has only been partly elucidated. We studied the early changes in insulin clearance and β‐cell responsivity during a positive and negative energy balance in lean healthy men.
DesignWe studied in nine healthy lean men...
Free fatty acid (FFA)– and obesity-induced insulin resistance has been associated with disturbed mitochondrial function. Elevated plasma FFA can impair insulin-induced increase of adenosine triphosphate synthesis and downregulate the expression of genes important in the biogenesis of mitochondria in human skeletal muscle. Whether FAs have a direct effect on intrinsic mitochondrial capacity remains...
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