PMID: 8586004May 1, 1995Paper

Contribution of obesity to defects of intracellular glucose metabolism in NIDDM

Diabetes Care
J W ChungR R Henry

Abstract

To examine the contribution of obesity to insulin resistance and abnormalities of intracellular glucose and fat metabolism in NIDDM. Glucose turnover measurements and indirect calorimetry were performed in 10 obese non-insulin-dependent diabetes mellitus (NIDDM) and 10 lean NIDDM subjects (body mass index 35.3 +/- 1.0 vs. 24.1 +/- 0.5 kg/m2, P < or = 0.001) in the basal state and during hyperinsulinemic (720 pmol.m-2.min-1) euglycemic (5.0-5.5 mmol/l) clamps. Obese and lean NIDDM subjects demonstrated similar basal rates of glucose uptake (GU) (1.15 +/- 0.08 vs. 1.26 +/- 0.08 mmol/min, NS) as well as oxidative (0.49 +/- 0.07 vs. 0.53 +/- 0.05 mmol/min, NS) and nonoxidative (0.67 +/- 0.10 vs. 0.73 +/- 0.12 mmol/min, NS) glucose metabolism. During hyperinsulinemic glucose clamp studies, rates of GU were lower in obese NIDDM subjects (34.1 +/- 2.3 vs. 55.2 +/- 3.8 mumol.kg fat-free mass [FFM]-1.min-1, P < or = 0.001) as were rates of oxidative (14.1 +/- 1.3 vs. 22.1 +/- 2.1 mumol.kg FFM-1.min-1, P < or = 0.005) and nonoxidative (20.0 +/- 2.3 vs. 33.1 +/- 3.6 mumol.kg FFM-1. min-1, P < or = 0.01) glucose metabolism. Although absolute rates of insulin-stimulated GU were decreased in the obese group, the relative distribution into gl...Continue Reading

Citations

Dec 3, 2008·Diabetic Medicine : a Journal of the British Diabetic Association·C Lloret-LinaresS Czernichow
Feb 28, 2001·Diabetes, Obesity & Metabolism·C A Reasner
Sep 24, 2020·American Journal of Physiology. Cell Physiology·Kai ZouJoseph A Houmard

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