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Fructose Consumption and Metabolic Dysregulation

Hypertriglyceridemia Clinical Trial

Official title:
Fructose Consumption Aggravates Dysregulation of Postprandial Lipid Metabolism in Obese Hypertriglyceridemic Men With High Cardiometabolic Risk Profile and Associates With Liver Fat Deposition

Clinical Trial Summary

High fructose intake is increasingly recognized as causative in development of prediabetes, metabolic syndrome and cardiovascular disease (CVD). The mechanisms underlying fructose-induced metabolic disturbances are unclear but are beginning to be unraveled. In contrast to metabolism of glucose, the breakdown of fructose leads to the generation of metabolites that stimulate hepatic de novo lipogenesis (DNL) and increased levels of both fasting and postprandial triglycerides. The key lipogenic transcription factor seems to be activated by fructose independently of insulin. However, it is still controversial whether fructose consumption increases DNL in man to the extent that it induces metabolic disturbances. Animal studies have shown that also the adipose tissue is responsive to fructose feeding fructose, and that high fructose-feeding induces insulin resistance and inflammation in the adipose tissue. The role of intestinal insulin resistance in fructose-induced dysmetabolism has not been studied in detail. The critical question is whether the metabolic disturbances are induced by calorie excess or by fructose per se.

Clinical Trial Description

Detailed description: Study subjects will participate to studies 1-4 before and 3 m after fructose diet: 1. An oral fat load or a kinetic study with stable isotopes combined with an oral fat load. 2. Determination of liver, subcutaneous and intra-abdominal fat. (Proton magnetic resonance spectroscopy ) 3. Lipolytic enzymes, advanced lipid analysis, fat biopsies and genetic studies and gut microbiota profiling 4. Oral glucose tolerance test and analysis of incretins and inflammatory biomarkers. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01445730
Study type Interventional
Source Helsinki University Central Hospital
Contact
Status Completed
Phase N/A
Start date August 2011
Completion date June 2015
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