Extra Fructose in the Growth Medium Fuels Lipogenesis of Adipocytes

Fructose in excessive amounts exerts negative effects on insulin sensitivity, blood pressure, and liver metabolism. These adverse outcomes were attributed to its disturbances of key metabolic pathways in the liver. Recently, possible consequences of high fructose levels directly on adipocytes in viv...

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Main Authors: Armin Robubi, Klaus R. Huber, Walter Krugluger
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Obesity
Online Access:http://dx.doi.org/10.1155/2014/647034
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author Armin Robubi
Klaus R. Huber
Walter Krugluger
author_facet Armin Robubi
Klaus R. Huber
Walter Krugluger
author_sort Armin Robubi
collection DOAJ
description Fructose in excessive amounts exerts negative effects on insulin sensitivity, blood pressure, and liver metabolism. These adverse outcomes were attributed to its disturbances of key metabolic pathways in the liver. Recently, possible consequences of high fructose levels directly on adipocytes in vivo have been considered. We have cultured adipocytes in growth media containing 1 g/L fructose additionally to glucose and monitored the cells fate. Cells developed lipid vesicles much earlier with fructose and showed altered kinetics of the expression of mRNAs involved in lipogenesis and hexose uptake. Adiponectin secretion, too, peaked earlier in fructose containing media than in media with glucose only. From these data it can be speculated that similar effects of fructose containing diets happen in vivo also. Apart from toxic action on liver cells, adipocytes might be stimulated to take up extra fructose and generate new lipid vesicles, further dysregulating energy homeostasis.
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spelling doaj-art-244a5f99bc0f42a191ac6e0225df28a52025-02-03T06:07:12ZengWileyJournal of Obesity2090-07082090-07162014-01-01201410.1155/2014/647034647034Extra Fructose in the Growth Medium Fuels Lipogenesis of AdipocytesArmin Robubi0Klaus R. Huber1Walter Krugluger2Department of Laboratory Medicine, Donauspital, SMZ Ost, Langobardenstraße 122, 1220 Vienna, AustriaDepartment of Laboratory Medicine, Donauspital, SMZ Ost, Langobardenstraße 122, 1220 Vienna, AustriaDepartment of Laboratory Medicine, Donauspital, SMZ Ost, Langobardenstraße 122, 1220 Vienna, AustriaFructose in excessive amounts exerts negative effects on insulin sensitivity, blood pressure, and liver metabolism. These adverse outcomes were attributed to its disturbances of key metabolic pathways in the liver. Recently, possible consequences of high fructose levels directly on adipocytes in vivo have been considered. We have cultured adipocytes in growth media containing 1 g/L fructose additionally to glucose and monitored the cells fate. Cells developed lipid vesicles much earlier with fructose and showed altered kinetics of the expression of mRNAs involved in lipogenesis and hexose uptake. Adiponectin secretion, too, peaked earlier in fructose containing media than in media with glucose only. From these data it can be speculated that similar effects of fructose containing diets happen in vivo also. Apart from toxic action on liver cells, adipocytes might be stimulated to take up extra fructose and generate new lipid vesicles, further dysregulating energy homeostasis.http://dx.doi.org/10.1155/2014/647034
spellingShingle Armin Robubi
Klaus R. Huber
Walter Krugluger
Extra Fructose in the Growth Medium Fuels Lipogenesis of Adipocytes
Journal of Obesity
title Extra Fructose in the Growth Medium Fuels Lipogenesis of Adipocytes
title_full Extra Fructose in the Growth Medium Fuels Lipogenesis of Adipocytes
title_fullStr Extra Fructose in the Growth Medium Fuels Lipogenesis of Adipocytes
title_full_unstemmed Extra Fructose in the Growth Medium Fuels Lipogenesis of Adipocytes
title_short Extra Fructose in the Growth Medium Fuels Lipogenesis of Adipocytes
title_sort extra fructose in the growth medium fuels lipogenesis of adipocytes
url http://dx.doi.org/10.1155/2014/647034
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AT walterkrugluger extrafructoseinthegrowthmediumfuelslipogenesisofadipocytes