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Evaluation of Intestinal and Hepatic Parts in Fasting Postprandial Hypertriglyceridemia in Patients With or Without Metabolic Syndrome (NCT02898142)

Fasting and postprandial hypertriglyceridemia (HTG) depends on increased production of intestinal triglyceride rich lipoproteins in patients with isolated fasting hypertriglyceridemia. The objective of this study is to compare the serum apoB48 rate after a standardized load test, among patients with isolated hypertriglyceridemia and patients with metabolic syndrome.
  • Other: Postprandial test
    Postprandial test : The preparation used for this test consists of a semi standardized liquid meal (400 ml energy drink Fresubin® 2 cal / ml, Fresenius Kabi, France), containing 800 kcal, 50% calories from carbohydrates, 15% in as protein, and 35% as lipid. The test meal will be performed in the morning during 6 hours (between 8:00 and 14:00) after 10 hours of fasting. This post prandial test is the same in the two study groups.
    Ages eligible for Study
    18 Years to 75 Years
    Genders eligible for Study
    Accepts Healthy Volunteers
    Two major studies in 2007 showed that the occurrence of myocardial infarction and death was more frequent in subjects with the highest "non-fasting" triglycerides level. This is an important point that supports the hypothesis that the development of atheromatous lesions also depends on "remnant" of triglyceride-rich lipoproteins (TRL) products such as chylomicrons in the intestine. The elevation of triglycerides in postprandial period depends on the intestinal production of TRL that can be excessively increased as has been shown in diabetes. Accordingly, it is necessary to distinguish between hepatic and intestinal production of TRL in hypertriglyceridemic patients particularly during postprandial period. TRL contain a single molecule of apolipoprotein B (apoB), apoB100 when produced by the liver or apoB-48 when they are produced by the gut. It is well known that apo B100 is the lipoprotein of the VLDL which is increased in hypertriglyceridemia. But preliminary works showed that fasting concentrations of apoB48 were correlated with triglycerides in some hypertriglyceridemic patients. These results suggest an intestinal part in fasting triglycerides levels. It therefore appears that the liver and intestine contribute to hypertriglyceridemia, but the intestinal part is not established particularly in isolated hypertriglyceridemia. The detection of abnormalities in the production of LRT would consider intestinal bowel as a target organ for the initiation of specific lipid-lowering therapy.

    1 locations

    France (1)
    • Pitié Salpetriere Hospital
      Not specified
      Paris, France, 75013
    31 January, 2012
    27 September, 2016
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