Oxidisability of low density lipoproteins in patients with carotid or femoral artery atherosclerosis.

Abstract:

:Oxidation of low density lipoprotein (LDL) is implicated in the pathogenesis of atherosclerosis. In this study the susceptibility to oxidation of LDL (from patients with atherosclerosis) is related to the progression of the disease. LDL were isolated from 37 patients with demonstrable atherosclerotic plaques. The susceptibility of LDL to oxidation (induced by an exogenous oxidative stress) was assessed by measuring the breakdown products of lipid peroxidation, the increased formation of conjugated dienes, and changes in surface charge of the apolipoprotein B (apo B). Progression of the atherosclerotic plaque was assessed by measuring the maximum velocity of blood through the narrowest portion of the vessel at inclusion and after one year. Twenty-nine of the 37 samples taken were found to have LDL that were partially oxidised, whereas 8 samples showed LDL whose state of oxidation was within the normal range. Progression of the atherosclerotic plaque occurred in 19 (66%) of the 29 patients whose lipoproteins were partially oxidised compared with only 2 (25%) of the 8 patients with normal lipoproteins (P = 0.055, Fisher's exact test). These data support an association between the progression of atherosclerotic plaques in carotid and femoral vessels and the susceptibility to oxidation of LDL.

journal_name

Atherosclerosis

journal_title

Atherosclerosis

authors

Andrews B,Burnand K,Paganga G,Browse N,Rice-Evans C,Sommerville K,Leake D,Taub N

doi

10.1016/0021-9150(94)05401-4

subject

Has Abstract

pub_date

1995-01-06 00:00:00

pages

77-84

issue

1

eissn

0021-9150

issn

1879-1484

pii

0021-9150(94)05401-4

journal_volume

112

pub_type

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