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. 1972 Mar;51(3):537–548. doi: 10.1172/JCI106842

Lipogenesis in Human Adipose Tissue: Some Effects of Nibbling and Gorging

George A Bray 1,2,3,4
PMCID: PMC302159  PMID: 5011099

Abstract

Six grossly obese patients were fed 5000 calorie diets for 4 wk. During one period of 2 wk, the calories were consumed over 4 hr (gorging) and during the other 2 wk, the dietary intake was spread over 20 hr (nibbling). Each of these periods followed a low caloric intake which lasted at least 10 days. Three male patients (group I) were studied at or near their maximal weight and three females (group II) after a weight loss of 50-70 kg. The patients in group II gained more weight than those in group I. Lipogenesis from pyruvate was greater in group II than in group I. Rapid ingestion of food (gorging) was accompanied by a significant increase in glyceride-glycerol-14C and fatty acids-14C from pyruvate-14C. The enzymatic activity of sn-glycerol 3-phosphate dehydrogenase and mitochondrial glycerophosphate oxidase paralleled the rate of formation of glyceride-glycerol. Lipogenesis from pyruvate was significantly lower when the bicarbonate concentration was reduced from 25 to 10 mM. Citrate and acetate were also converted to fatty acids but there was no difference between gorging and nibbling. An inhibitor of carbonic anhydrase significantly reduced the conversion of pyruvate into CO2, glyceride-glycerol, and fatty acids. These data on gorging and nibbling have been related to other studies suggesting that the frequency of food intake may be inversely related to obesity.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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