Oxidized LDL cholesterol (ox-LDL) is considered to be a key factor of initiating and accelerating coronary heart disease CHD diabetes Mellitus DM , associated with several mechanisms one them Oxidative stress. The aim this study was find the association between ox- ,HDL-C TG LDL-C arylesterase risk in different age groups males females difference these factors can explain sex how much changes l...

OBJECTIVE Oxidized LDL cholesterol (ox-LDL-C) is considered to be a key factor of initiating and accelerating atherosclerosis (AS). The purpose of this study is to elucidate the sensitivity and specificity of ox-LDL and oxidation ratio of LDL in the diagnosis of coronary artery disease (CAD). For the first time, we investigated the ratio of ox-LDL to ALB(ox-LDL/ALB). METHODS AND RESULTS Blood...

Using 2-16% gradient gel electrophoresis, we examined low density lipoprotein (LDL) particle size in relation to plasma lipoproteins in 1,168 women and 1,172 men from the Framingham Offspring Study. In addition, we studied the effect of dietary intake on LDL size in a subset of the population. Seven LDL size peaks were identified, with the largest, LDL 1, being found in the density range 1.019-...

We have previously shown that incubation of human macrophages with antigen-antibody complexes prepared with native human low density lipoprotein (LDL) and rabbit anti-LDL antibodies (LDL-ICs) results in an increased intracellular accumulation of cholesteryl esters (CEs) and induces a marked increase in the number of LDL receptors. To determine whether the increased CE accumulation in these cell...

Small dense low density lipoprotein (LDL) particles have altered apolipoprotein (apo) B conformation and lowered affinity for the LDL receptor (J. Biol. Chem. 1994. 269: 511-519). Herein, we examine the interaction of small dense LDL with cell LDL receptor-independent binding sites. Compared to normal LDL, at low LDL cell media concentrations (<10 microg/ml), small dense LDL had decreased speci...

Abstract Background The combination of imaging and therapeutic agents in the same smart nanoparticle is a promising option to perform minimally invasive guided therapy. In this study, Low density lipoproteins (LDL), one most attractive biodegradable biocompatible nanoparticles, were used for simultaneous delivery Paclitaxel (PTX), hydrophobic antitumour drug an amphiphilic contrast agent, Gd-AA...

Oxidation of low density lipoprotein (LDL) by cells of the arterial wall or in the presence of copper ions was shown to result in the peroxidation of its fatty acids as well as its cholesterol moiety. LDL incubation with cholesterol oxidase (CO) resulted in the conversion of up to 85% of the lipoprotein unesterified cholesterol (cholest-5-en-3-ol) to cholestenone (cholest-4-en-3-one) in a dose-...

Accumulating evidence indicates that secretory phospholipase A2 (sPLA2) enzymes promote atherogenic processes. We have previously showed the presence of Group V sPLA2 (GV sPLA2) in human and mouse atherosclerotic lesions, its hydrolysis of low density lipoprotein (LDL) particles, and the ability of GV sPLA2-modified LDL (GV-LDL) to induce macrophage foam cell formation in vitro. The goal of thi...

To assess whether fish oil-induced alterations in low-density-lipoprotein (LDL) composition have distinct and important effects on LDL metabolism, we evaluated LDL kinetic behavior in cynomolgus macaques fed an atherogenic diet supplemented with either fish oil (1.6 g n-3 fatty acids; n = 10) or olive oil (n = 9) for > or = 6 mo. LDL from monkeys supplemented with fish oil or olive oil was isol...