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Association of the insertion/deletion gene polymorphism of the apolipoprotein B signal peptide with myocardial infarction.

Abstract：

:The Del allele of the apolipoprotein B (apoB) signal peptide (SP) insertion/deletion (Ins/Del) polymorphism has been shown to be associated with elevated plasma levels of apoB, cholesterol and low density lipoprotein. It was the aim of the present study to analyse the relation of this gene variation to the risk of coronary artery disease (CAD) and of myocardial infarction (MI) in a population of 2259 male Caucasians, whose coronary anatomy was defined by means of coronary angiography. ApoB SP DelDel genotypes had significantly higher apoB plasma concentrations than InsIns homozygotes (P = 0.0001) and InsDel heterozygotes (P = 0.002); however, the apoB plasma levels of InsIns and InsDel genotypes were essentially the same (P = 0.54). Similar observations were made with respect to ApoB SP genotype-dependent cholesterol plasma concentrations. Since the apoB plasma level was not only associated with the apoB SP Ins/Del gene variation but also to the extent of coronary artery disease (P <0.0001), individuals with an InsIns genotype and without CAD had the lowest and subjects with a DelDel genotype and triple vessel disease the highest apoB plasma levels (P <0.0001). An association of the apoB SP Ins/Del gene variation with CAD was not detected, neither in the total population nor in low risk groups. In contrast, the gene variation was associated with MI (P <0.05). An Odds ratio of 1.18 (95% CI, 1.01-1.39) associated with the Del allele was detected in the total sample (P <0.02). In a subpopulation of individuals with low plasma triglyceride levels ( <154 mg/dl; mean value) and an DD genotype of the angiotensin I-converting enzyme insertion/deletion gene polymorphism an Odds ratio of 2.01 (1.42-3.05) was calculated (P <0.001). The present study presents evidence for a statistically significant difference in the development of MI between genotype classes of the apoB SP Ins/Del gene polymorphism.

journal_name

Atherosclerosis

journal_title

Atherosclerosis

authors

Gardemann A,Ohly D,Fink M,Katz N,Tillmanns H,Hehrlein FW,Haberbosch W

doi

10.1016/s0021-9150(98)00161-0

subject

Has Abstract

pub_date

1998-11-01 00:00:00

pages

167-75

issue

eissn

0021-9150

issn

1879-1484

pii

S0021-9150(98)00161-0

journal_volume

141

pub_type

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Association of the insertion/deletion gene polymorphism of the apolipoprotein B signal peptide with myocardial infarction.