نتایج جستجو برای: vldl
تعداد نتایج: 4710 فیلتر نتایج به سال:
background dyslipidemia is associated with cardiovascular morbidities and mortality. currently, fasting lipid profile determination is used to monitor treatment response. recently, postprandial lipemia is of increasing interest because of its atherogenic and thrombogenic potential and also was found to be more predictive for cardiovascular diseases. objectives to demonstrate postprandial lipemi...
Cholesteryl ester transfer protein (CETP) mediates the transfer of HDL cholesteryl esters for triglyceride (TG) in VLDL/LDL. CETP inhibition, with anacetrapib, increases HDL-cholesterol, reduces LDL-cholesterol, and lowers TG levels. This study describes the mechanisms responsible for TG lowering by examining the kinetics of VLDL-TG, apoC-II, apoC-III, and apoE. Mildly hypercholesterolemic subj...
the effect of epinephrine on triacylglycerol secretion was investigated in isolated rat hepatocytes. the effect appeared at concentrations of more than 1 µm and reached a plateau at 10 µm. epinephrine concentration for half of the maximal bioeffect (ec50) was about 1 µm. epineplrrine at a concentration of 10 µm suppressed triacylglycerol secretion by 33% and increased its cellular content by ap...
OBJECTIVE Increased very-low-density lipoprotein triglycerides (VLDL-TG) concentration is a central feature of diabetic dyslipidemia. The objective was to compare basal and insulin mediated VLDL-TG kinetics, oxidation, and adipose tissue storage in type 2 diabetic and healthy (nondiabetic) men. RESEARCH DESIGN AND METHODS Eleven type 2 diabetic and 11 healthy men, matched for BMI and age, wer...
Upper body obese (UBO) subjects have greater cardiovascular disease risk than lower body obese (LBO) or lean subjects. Obesity is also associated with hypertriglyceridemia that may involve greater production and impaired removal of very-low-density lipoprotein (VLDL)-triglycerides (TG). In these studies, we assessed the impact of body composition on basal VLDL-TG production, VLDL-TG oxidation, ...
The molecular mechanisms of hypertriglyceridemia (HTG), a common lipid metabolic disorder in humans, often of genetic origin, are not well understood. In studying the effect of apolipoprotein (apo) E on the metabolism of triglyceride-rich lipoproteins, we found that expressing high plasma levels of human apoE3 in transgenic mice lacking endogenous mouse apoE caused HTG. These transgenic animals...
Beta very low density lipoproteins (B-VLDL) from cholesterol-fed animals and from patients with Type III hyperlipoproteinemia are internalized by a receptor-mediated process in mouse macrophages. Once internalized, the cholesteryl esters of B-VLDL are hydrolyzed in lysosomes, and the released cholesterol is re-esterified, resulting in a massive accumulation of cholesteryl esters. In the present...
Our previous studies showed that very low density lipoproteins, Sf 60-400 (VLDL), from hypertriglyceridemia subjects, but not VLDL from normolipemic subjects, suppress HMG-CoA reductase activity in normal human fibroblasts. To determine if this functional abnormality of hypertriglyceridemic VLDL resulted from differences in uptake of the VLDL by the low density lipoprotein (LDL) receptor pathwa...
In addition to its role in the uptake of apolipoprotein B (apoB)-containing lipoproteins, apoE promotes hepatic very low density lipoprotein-triglyceride (VLDL-TG) production in animal models. However, it is not known if apoE increases the amount of TG per VLDL particle or the number of VLDL particles secreted. VLDL-apoB production is a measure of the rate of VLDL particle secretion. We determi...
Beta very low density lipoproteins (beta-VLDL) from cholesterol-fed animals from patients with Type III hyperlipoproteinemia are internalized by a receptor-mediated process in mouse macrophages. Once internalized, the cholesteryl esters of beta-VLDL are hydrolyzed in lysosomes, and the released cholesterol is re-esterified, resulting in a massive accumulation of cholesteryl esters. In the prese...
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