Plasma homocysteine level and development of coronary artery disease.

Abstract:

BACKGROUND:The plasma level of homocysteine is an independent risk factor for atherosclerotic vascular disease. The relationship between plasma homocysteine level and the onset of coronary artery disease (CAD) has not been established. OBJECTIVE:To investigate the relationship between plasma homocysteine level and the age at which CAD was diagnosed. METHODS:Fifty-seven male patients aged < or = 65 years (mean age 53 years) with angiographically proven symptomatic CAD seen consecutively and 138 age-matched male control subjects (mean age 52 years) free from atherosclerotic vascular disease were studied. They were divided into two subgroups, a group of younger subjects (aged < or = 55 years) and a group of older subjects (aged 56-65 years). RESULTS:Plasma homocysteine levels in CAD patients significantly exceeded those of control subjects (means 13.4 versus 10.6 nmol/ml, P = 0.0002). Plasma homocysteine level of subjects in younger CAD group was significantly higher than that of subjects in older CAD group (15.0 versus 11.3 nmol/ml, P = 0.03), and age and logarithmically transformed plasma homocysteine level exhibited a significant negative correlation (r = -0.28, P = 0.03) for subjects in CAD group. Among control subjects, members of our two age subgroups had similar plasma homocysteine levels. Younger CAD patients had significantly higher plasma homocysteine levels than did younger controls (15.0 versus 10.4 nmol/ml, P < 0.0001). However, for older groups there was no significant difference between plasma homocysteine levels in CAD patients and controls (11.3 versus 10.9 nmol/ml). Multiple regression analysis showed that only logarithmically transformed plasma homocysteine level was a significant predictor for age of onset of CAD. CONCLUSION:An elevated level of plasma homocysteine is more important in the development of premature CAD than it is in that of late-onset CAD among men.

journal_name

Coron Artery Dis

journal_title

Coronary artery disease

authors

Kawashiri M,Kajinami K,Nohara A,Yagi K,Inazu A,Koizumi J,Haraki T,Takegoshi T,Mabuchi H

doi

10.1097/00019501-199910000-00002

subject

Has Abstract

pub_date

1999-10-01 00:00:00

pages

443-7

issue

7

eissn

0954-6928

issn

1473-5830

journal_volume

10

pub_type

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