Factor XIII Val34Leu polymorphism and the risk of myocardial infarction under the age of 36 years.
There are limited and controversial data regarding the impact of factor XIII (FXIII) Val34Leu polymorphism in the pathogenesis of premature myocardial infarction (MI). We examined whether FXIII Val34Leu polymorphism is associated with the development of early MI. We recruited 159 consecutive patients who had survived their first acute MI under the age of 36 years (mean age = 32.1 +/- 3.6 years, 138 were men). The control group consisted of 121 healthy individuals matched with cases for age and sex, without a family history of premature coronary heart disease (CHD). FXIII Val34Leu polymorphism was tested with polymerase chain reaction and reverse hybridization. There was a lower prevalence of carriers of the Leu34 allele in patients than in controls (30.2 vs. 47.1%, p = 0.006). FXIII Val34Leu polymorphism was associated with lower risk for acute MI after adjusting for major cardiovascular risk factors (odds ratio [OR] = 0.51, 95% confidence interval [CI] 0.27-0.95, p = 0.03). Subgroup analysis according to angiographic findings ("normal" coronary arteries [n = 29] or significant CHD [n = 130]) showed that only patients with MI and significant CHD had lower prevalence of carriers of the Leu34 allele compared to controls after adjusting for major cardiovascular risk factors (OR = 0.42, 95% CI 0.22-0.83, p = 0.01). Our data indicate that FXIII Val34Leu polymorphism has a protective effect against the development of MI under the age of 36 years, particularly in the setting of significant CHD.
Second Department of Cardiology, Attikon Hospital, School of Medicine, University of Athens, Athens, Greece. rallidis@ath.forthnet.gr
Loukianos S
LS
Rallidis
Marianna
M
Politou
Christoforos
C
Komporozos
Demosthenes B
DB
Panagiotakos
Chrisoula I
CI
Belessi
Anthi
A
Travlou
John
J
Lekakis
Dimitrios T
DT
Kremastinos
D000328:Adult; D000367:Age Factors; D017668:Age of Onset; D016022:Case-Control Studies; D003327:Coronary Disease / Q000097:blood / Q000150:complications* / Q000453:epidemiology / Q000235:genetics; D005176:Factor XIII / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D006115:Greece / Q000453:epidemiology; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000097:blood / Q000453:epidemiology / Q000235:genetics* / Q000517:prevention & control; D016017:Odds Ratio; D011110:Polymorphism, Genetic; D018570:Risk Assessment; D012307:Risk Factors
C064015:factor XIII subunit A; D005176:Factor XIII