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Association between a polymorphism in the G protein ß3 subunit gene (GNB3) with arterial hypertension but not with myocardial infarction.
Cardiovasc. Res. 49, 820-827 (2001)
Objective: A polymorphism at position 825(C-->T) of the G protein beta3 (GNB3) gene was found to be associated with enhanced transmembrane signalling as well as with rut increased prevalence of arterial hypertension. The aim of the present study was to further investigate the association of the GNB3 C825T allele status with arterial hypertension in a large population-based sample and its association with specific end organ damage, i.e. myocardial infarction (MI). Methods: Individuals from a population-based sample (n=2052) and patients suffering from premature MI (age at first MI less than or equal to 60 years, n=606) were studied by questionnaire as well as by physical examination and biochemical analyses. Results: In the population-based sample, the prevalence of arterial hypertension (blood pressure greater than or equal to 160/95 mmHg and/or antihypertensive medication) was higher in individuals with the TT genotype (41.8%) as compared to heterozygote individuals (36.6%) or those with the CC genotype (32.75%) (P=0.02). This association was predominantly found in men. Moreover, men without antihypertensive medication carrying the TT genotype shelved higher diastolic blood pressure than those carrying the CC genotype (86.5 vs. 83.7 mmHg, P=0.04). However, the genotype distribution and the allele frequencies were similar in both, the population-based and the MI patient sample. Furthermore, neither the age at the time of MI nor the location of the MI were related to the genotype distribution. Similarly, gender and age stratified analyses did not show any association of the GNB3 genotype and MI. Conclusions: In male individuals from a large population-based sample, the T allele of the GNB3 polymorphism was associated with arterial hypertension. However, the effects of the GNB3 825T allele on blood pressure were small and did not translate to a clinically relevant increase of risk for MI.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Epidemiology; G-proteins; Gene expression; Hypertension; Infarction
ISSN (print) / ISBN
0008-6363
e-ISSN
1755-3245
Zeitschrift
Cardiovascular Research
Quellenangaben
Band: 49 ,
Heft: 4,
Seiten: 820-827
Verlag
Oxford University Press
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Epidemiology (EPI)