Matrix metalloproteinase-1 polymorphism is associated with persistent airway obstruction in asthma in the Taiwanese population.
J Asthma
; 46(1): 41-6, 2009 Feb.
Article
em En
| MEDLINE
| ID: mdl-19191136
ABSTRACT
BACKGROUND AND OBJECTIVE:
Overexpression of matrix metalloproteinase (MMP)-1 has been demonstrated in asthma, and MMP polymorphisms are known to enhance disease susceptibility. We investigated whether MMP-1 polymorphism is associated with persistent airway obstruction in asthma in the Taiwanese population.METHODS:
A total of 131 unrelated Taiwanese subjects were enrolled, age-matched, and divided as follows (1) those who had asthma with persistent airway obstruction with forced expiratory volume in 1 second (FEV(1)) and FEV(1)/forced vital capacity (FVC) values less than 75% predicted (n = 41); (2) those with asthma without airway obstruction with FEV(1) and FEV(1)/FVC values > or = 75% predicted (n = 47); and (3) normal control subjects (n = 43). All were genotyped for the 1G/2G polymorphism of MMP-1 promoter (-1607 bp).RESULTS:
1G genotypes of MMP-1 containing at least one 1G allele were found in asthmatic patients with persistent airway obstruction (OR = 3.696, 95% CI 1.489-9.173, p = 0.027), but not in asthmatic patients without airway obstruction (OR = 2.065, 95% CI 0.890-4.790, p = 0.091) when compared with homozygous 2G (2G/2G). The heterozygous 1G genotype (1G/2G) was more associated with persistent airway obstruction than homozygous 2G (2G/2G) (OR 4.727, 95% CI 1.759-12.703, p = 0.012). The adjusted risk estimate of 1G genotypes for asthmatics with persistent airway obstruction was 4.416 (95% CI 1.651-11.812, p = 0.003).CONCLUSION:
1G genotypes of MMP-1 polymorphism are associated with asthma with persistent airway obstruction, and the heterozygous 1G genotype (1G/2G) poses the most susceptibility to persistent airway obstruction in asthma.
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Base de dados:
MEDLINE
Assunto principal:
Polimorfismo Genético
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Asma
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Metaloproteinase 1 da Matriz
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Povo Asiático
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Obstrução das Vias Respiratórias
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article