Association of ApoE polymorphisms with prevalent hypertension in 1406 older adults: the Bambuí Health Aging Study (BHAS)
Braz. j. med. biol. res
;
41(2): 89-94, Feb. 2008. tab
Artigo
em Inglês
| LILACS
| ID: lil-474764
ABSTRACT
Apolipoprotein E (ApoE) polymorphism influences lipid metabolism, but its association with arterial hypertension is controversial. The objective of this study was to examine the association between ApoE polymorphism and prevalent hypertension in a large unselected population of older adults. Participants from the baseline of the Bambuí Health Aging Study whose ApoE genes had been genotyped were selected for this study (N = 1406, aged 60-95 years). These subjects represented 80.7 percent of the total elderly residents in Bambuí city, MG, Brazil. Hypertension was defined as a systolic blood pressure ³140 mmHg and/or a diastolic blood pressure ³90 mmHg, or the use of anti-hypertensive medication. The exposure variable was the ApoE genotype as follows e3 carriers, e3e3; e2 carriers, e2e2 or e2e3, and e4 carriers, e3e4 or e4e4. Potential confounding variables were age, gender, traditional cardiovascular risk factors, uric acid, and creatinine levels. The prevalence of hypertension was 61.3 percent. Compared with the e3 homozygotes, neither the e2 nor the e4 carrier status was associated with hypertension (adjusted prevalence ratios = 0.94, 95 percentCI = 0.83-1.07 and 0.98, 0.89-1.07, respectively). On the other hand, the e2 allele carriers had lower LDL cholesterol levels (P < 0.001) and the e4 carriers had higher LDL cholesterol levels (P = 0.036). This study provides epidemiologic evidence that the ApoE genotype is not associated with prevalent hypertension in old age.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Apolipoproteínas E
/
Polimorfismo Genético
/
Hipertensão
Tipo de estudo:
Estudo de etiologia
/
Estudo de incidência
/
Estudo observacional
/
Estudo de prevalência
/
Fatores de risco
Limite:
Idoso
/
Aged80
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Braz. j. med. biol. res
Assunto da revista:
Biologia
/
Medicina
Ano de publicação:
2008
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Brasil
Instituição/País de afiliação:
CMIC Brasil Pesquisas Clínicas/BR
/
Hospital Moinhos de Vento de Porto Alegre/BR
/
Universidade Federal de Minas Gerais/BR
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