نتایج جستجو برای: vldl
تعداد نتایج: 4710 فیلتر نتایج به سال:
Apolipoprotein B (apoB) metabolism was investigated in 20 men with plasma triglyceride 0.66-2.40 mmol/l and plasma cholesterol 3.95-6. 95 mmol/l. Kinetics of VLDL(1) (S(f) 60-400), VLDL(2) (S(f) 20-60), IDL (S(f) 12-20), and LDL (S(f) 0;-12) apoB were analyzed using a trideuterated leucine tracer and a multicompartmental model which allowed input into each fraction. VLDL(1) apoB production vari...
AIMS Ectopic deposition of fat in skeletal muscle is a feature of metabolic syndrome, but its specific association with very-low-density lipoprotein (VLDL)-apolipoprotein (apo) B-100 metabolism remains unclear. METHODS We examined the association between skeletal muscle fat content and VLDL-apoB-100 kinetics in 25 obese subjects, and the responses of these variables to weight loss. The fat co...
CONTEXT High plasma triglycerides (TG) have been shown to be independent and better predictors of cardiovascular disease than low-density lipoprotein (LDL) cholesterol in women. This may be due to gender differences in very-low-density lipoprotein 1 (VLDL(1))- and VLDL(2)-TG and fatty acid kinetics. OBJECTIVE Our objective was to investigate whether there are differences in VLDL(1)- and VLDL(...
Primary cultures of estrogen-induced chick parenchymal liver cells have been used to study the assembly of the apolipoprotein and glycerolipid constituents of hepatic very low density lipoprotein (VLDL). Liver cell monolayers in serum-free medium were pulse-labeled for 2.5 min with either [3H]leucine or [3H]glycerol and were then chased for 4 h. The kinetics of secretion of VLDL 3H-apolipoprote...
Hypertriglyceridemia is common in individuals with human immunodeficiency (HIV) infection, but the mechanisms responsible for increased plasma triglyceride (TG) concentrations are not clear. We evaluated fatty acid and VLDL-TG kinetics during basal conditions and during a glucose infusion that resulted in typical postprandial plasma glucose and insulin concentrations in six men with HIV-dyslipi...
Low density lipoprotein (LDL) and four subfractions, A, B, C, and D of very low density lipoprotein (VLDL), characterized by the following decreasing Sf values, greater than 400, 175-400, 100-175, and 20-100, respectively, were isolated by density gradient preparative ultracentrifugation from serum of normal men and women and analyzed for lipids, total protein, and apoB. The percentage distribu...
OBJECTIVE Dysregulated apolipoprotein (apo)C-III metabolism may account for hypertriglyceridemia and increased cardiovascular risk in the metabolic syndrome. This study investigated the dose-dependent effect of rosuvastatin on VLDL apoC-III transport in men with the metabolic syndrome. RESEARCH DESIGN AND METHODS Twelve men with the metabolic syndrome were studied in a randomized double-blind...
OBJECTIVE Biochemical heterogeneity governs functional disparities among lipoproteins. We examined charge-defined VLDL subfractions in metabolic syndrome (MetS) to determine whether their increased electronegativity is associated with increased cytotoxicity and whether high concentrations of highly electronegative subfractions render VLDL harmful to the vascular endothelium. RESEARCH DESIGN A...
BACKGROUND Currently the mechanisms of glomerular lipid accumulation are not completely understood. The present study characterizes the mechanisms of lipid uptake by glomerular cells. Since renal diseases are frequently associated with an accumulation of apoE-containing triglyceride-rich lipoproteins, we were interested to investigate whether glomerular epithelial or mesangial cells possess VLD...
Plasma lipoproteins in familial combined hyperlipidemia and monogenic familial hypertriglyceridemia.
Plasma lipoprotein concentration, composition, and size were evaluated in two common familial forms of hypertriglyceridemia and compared with those in normal subjects. The very low density lipoproteins (VLDL) were triglyceride-enriched in familial hypertriglyceridemia (triglyceride/apoprotein B ratio: 25.7 +/- 8.9) as compared to normal (9.6 +/- 12.2, P < 0.001) or familial combined hyperlipide...
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