Title : Physicochemical changes in HDL3 after bezafibrate treatment: influence on free cholesterol efflux from human fibroblasts.

Pub. Date : 1997 Nov

PMID : 9493704






8 Functional Relationships(s)
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1 Physicochemical changes in HDL3 after bezafibrate treatment: influence on free cholesterol efflux from human fibroblasts. Cholesterol HDL3 Homo sapiens
2 The aim was to quantify the physico-chemical modifications to high-density lipoprotein subfraction 3 (HDL3) induced by treatment and to assess, in vitro, the alterations in its principal physiological function, the efflux of intracellular free cholesterol. Cholesterol HDL3 Homo sapiens
3 The aim was to quantify the physico-chemical modifications to high-density lipoprotein subfraction 3 (HDL3) induced by treatment and to assess, in vitro, the alterations in its principal physiological function, the efflux of intracellular free cholesterol. Cholesterol HDL3 Homo sapiens
4 Composition analysis of HDL3 indicated an increase in cholesterol esters (P < 0.01), free cholesterol (P < 0.01), and phospholipids (P < 0.01), coupled with a decrease in the protein content of the molecule compared with pretreatment values. Cholesterol HDL3 Homo sapiens
5 The cholesterol effluxing capacity of pretreatment HDL3 was 28%, and post-treatment this increased to 50% (P < 0.01). Cholesterol HDL3 Homo sapiens
6 Multivariate analyses indicated that the increased capacity of HDL3 to promote free cholesterol efflux was, in part, due to increased HDL3 phospholipid content and a more adequate fluidity of the molecule. Cholesterol HDL3 Homo sapiens
7 Multivariate analyses indicated that the increased capacity of HDL3 to promote free cholesterol efflux was, in part, due to increased HDL3 phospholipid content and a more adequate fluidity of the molecule. Cholesterol HDL3 Homo sapiens
8 These findings suggest that bezafibrate induces a lowering of plasma triglycerides and that the resultant physico-chemical alterations of the HDL3 molecule make it more efficient as an acceptor of intracellular free cholesterol. Cholesterol HDL3 Homo sapiens