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American Journal of Clinical Nutrition, Vol 40, 1273-1280, Copyright © 1984 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Effects of weight reduction after gastroplasty on glucose and lipid metabolism

SA Olsson, BG Petersson, R Sorbris and P Nilsson-Ehle

We have studied effects of weight reduction after gastroplasty on glucose and lipid metabolism in 15 grossly obese subjects. Their body weight decreased from 127 +/- 13 to 97 +/- 14 kg 6 months after surgery and remained essentially stable 8 months later. There was a marked improvement of lipid and carbohydrate metabolism with significant reductions in blood glucose, plasma insulin and glucagon levels, and in glucose tolerance. Lipoprotein lipase activity in adipose tissue was in the upper reference range and lipoprotein lipase activity in postheparin plasma tended to be low. Plasma triglyceride, cholesterol and low-density lipoprotein cholesterol concentrations decreased significantly, while high-density lipoprotein cholesterol levels tended to rise. Concomitantly, there was an increase in triglyceride clearance rate. Most of these changes were significantly correlated to the reduction in body weight/body fat, indicating that the metabolic improvements are due to body fat reduction as such.


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