Abstract
Fructose consumption per capita has increased markedly over the past decades and is thought to be related with the increased incidence of obesity and metabolic disorders worldwide. Fructose metabolism is mainly hepatic, for its first step at least, and does not require insulin. It was therefore initially thought to be of potential benefit in the dietary management of patients with impaired glucose homeostasis. Long term fructose administration, however, led to the development of hypertriglyceridemia in humans. In addition, it was associated with the development of impaired glucose homeostasis and high blood pressure in rodents. Stimulation of de novo lipogenesis is a major effect of dietary fructose. Recent evidence indicates that hepatic de novo lipogenesis may be directly linked to intrahepatic fat accumulation and hepatic insulin resistance. Furthermore, hyperlipidemia secondary to enhanced hepatic de novo lipogenesis may possibly lead to lipid accumulation in muscle and muscle lipotoxicity, thus resulting in impaired muscle glucose metabolism. This article reviews the present state of knowledge regarding the effects of fructose on whole body lipid metabolism and its possible relationship with the metabolic syndrome.
Keywords: Fructose, metabolic syndrome, insulin resistance, de novo lipogenesis, high blood pressure
Current Nutrition & Food Science
Title: Fructose Consumption, Lipid Metabolism and the Metabolic Syndrome
Volume: 2 Issue: 3
Author(s): Kim-Anne Le and Luc Tappy
Affiliation:
Keywords: Fructose, metabolic syndrome, insulin resistance, de novo lipogenesis, high blood pressure
Abstract: Fructose consumption per capita has increased markedly over the past decades and is thought to be related with the increased incidence of obesity and metabolic disorders worldwide. Fructose metabolism is mainly hepatic, for its first step at least, and does not require insulin. It was therefore initially thought to be of potential benefit in the dietary management of patients with impaired glucose homeostasis. Long term fructose administration, however, led to the development of hypertriglyceridemia in humans. In addition, it was associated with the development of impaired glucose homeostasis and high blood pressure in rodents. Stimulation of de novo lipogenesis is a major effect of dietary fructose. Recent evidence indicates that hepatic de novo lipogenesis may be directly linked to intrahepatic fat accumulation and hepatic insulin resistance. Furthermore, hyperlipidemia secondary to enhanced hepatic de novo lipogenesis may possibly lead to lipid accumulation in muscle and muscle lipotoxicity, thus resulting in impaired muscle glucose metabolism. This article reviews the present state of knowledge regarding the effects of fructose on whole body lipid metabolism and its possible relationship with the metabolic syndrome.
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Cite this article as:
Le Kim-Anne and Tappy Luc, Fructose Consumption, Lipid Metabolism and the Metabolic Syndrome, Current Nutrition & Food Science 2006; 2 (3) . https://dx.doi.org/10.2174/157340106778017823
DOI https://dx.doi.org/10.2174/157340106778017823 |
Print ISSN 1573-4013 |
Publisher Name Bentham Science Publisher |
Online ISSN 2212-3881 |
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