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To the Editor: Khera et al. (Jan. 13 issue)(1) report that cholesterol efflux from macrophages was a marginally better predictor of coronary artery disease than high-density lipoprotein (HDL) cholesterol (odds ratio, 0.75 vs. 0.85). They feel that the heterogeneity in particle size, charge, and protein composition of HDL make HDL cholesterol levels a poor surrogate for cholesterol efflux capacity and reduce the predictive value of HDL cholesterol for carotid intima-media thickness and coronary artery disease. Of all the HDL particles, HDL(2) plasma levels have shown the greatest hazard reduction for incident coronary heart disease.(2) Furthermore, macrophage cholesterol efflux positively . . .
This article was published in the following journal.
Name: The New England journal of medicine
Intrauterine growth restriction (IUGR) is an independent risk factor for the development of cardiovascular diseases later in life. The mechanisms whereby slowed intrauterine growth confers vascular ri...
Pre-β1 HDL, being a major acceptor of free cholesterol from cells, plays an important role in reverse cholesterol transport. This study was performed to determine whether abnormalities in pre-β1 HDL...
Cholesterol efflux capacity of HDL (CEC) is inversely associated with cardiovascular risk. HDL composition, fluidity, oxidation, and size are related with CEC. We aimed to assess which HDL parameters ...
The HDL receptor scavenger receptor class B type I (SR-BI) plays crucial roles in cholesterol homeostasis, lipoprotein metabolism, and atherosclerosis. Hepatic SR-BI mediates reverse cholesterol trans...
Impaired autophagy in macrophages accompanies the progression of atherosclerosis and contributes to lipid loading in plaques and ineffective lipid degradation. Therefore, evoking autophagy and its ass...
The purpose of this study is to investigate the effect of treatment with rosuvastatin on the capacity of plasma to promote cholesterol efflux, which is the first and likely rate limiting s...
This is a prospective, placebo-controlled, cross-over trial comparing the the effects of approximately 7 weeks of placebo treatment to 7 weeks of ezetimibe (10mg/day) treatment on several ...
Alirocumab is an injectable treatment for elevated blood cholesterol. The hypothesis of this study is that it also increases cholesterol excretion from the body into the stool, a process s...
To measure by gas-liquid chromatography the relative concentrations of all saturated and unsaturated fatty acids found in the cholesterol ester and phospholipid fractions of plasma from 4,...
Homozygous familial hypercholesterolemia is a rare inherited disease of metabolism. It occurs in less than 1 in 1 million people within the United States. Patients with the disease are t...
Fatty acid esters of cholesterol which constitute about two-thirds of the cholesterol in the plasma. The accumulation of cholesterol esters in the arterial intima is a characteristic feature of atherosclerosis.
The most abundant protein component of HIGH DENSITY LIPOPROTEINS or HDL. This protein serves as an acceptor for CHOLESTEROL released from cells thus promoting efflux of cholesterol to HDL then to the LIVER for excretion from the body (reverse cholesterol transport). It also acts as a cofactor for LECITHIN CHOLESTEROL ACYLTRANSFERASE that forms CHOLESTEROL ESTERS on the HDL particles. Mutations of this gene APOA1 cause HDL deficiency, such as in FAMILIAL ALPHA LIPOPROTEIN DEFICIENCY DISEASE and in some patients with TANGIER DISEASE.
An ATP binding cassette transporter, sub-family G protein that functions as a high capacity UREA exporter, transporter of STEROLS, and in the absorption and efflux of many drugs. Its efflux activity for ANTINEOPLASTIC AGENTS contributes to DRUG RESISTANCE. It functions as a homodimer and is expressed by cells in a variety of organs, as well as by NEOPLASTIC STEM CELLS.
Cholesterol which is contained in or bound to high-density lipoproteins (HDL), including CHOLESTEROL ESTERS and free cholesterol.
Cholesterol which is contained in or bound to low density lipoproteins (LDL), including CHOLESTEROL ESTERS and free cholesterol.
Cholesterol is a waxy steroid metabolite found in the cell membranes and transported in the blood plasma. It is an important structural component of mammalian cell membranes, where it is establishes proper membrane permeability and fluidity. Cholesterol ...