A polymorphism in the tumor necrosis factor-α gene promoter region may predispose to a poor prognosis in COPD

被引:83
作者
Keatings, VM
Cave, SJ
Henry, MJ
Morgan, K
O'Connor, CM
FitzGerald, MX
Kalsheker, N
机构
[1] Univ Coll Dublin, Dept Med & Therapeut, Dublin 2, Ireland
[2] Univ Nottingham, Queens Med Ctr, Sch Clin Lab Sci, Div Clin Chem, Nottingham NG7 2RD, England
关键词
COPD; polymorphism; susceptibility; tumor necrosis factor-alpha;
D O I
10.1378/chest.118.4.971
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Study objectives: To determine whether the adenine (A)-guanine (G) substitution polymorphism at position - 308 on the tumor necrosis factor-alpha gene confers susceptibility to COPD or to the development of a more severe form of disease. Design: A cross-sectional study was undertaken to compare the frequency of the A allele in a group of 106 patients with COPD with that in a control population (n = 99). Patients were followed up prospectively for a period of 2 years. Participants and setting: Participants included 106 COPD patients recruited from a respiratory outpatient clinic and 99 control subjects recruited from patients admitted for cardiac catheterization. Measurements and results: DNA was extracted from venous blood, and each subject was genotyped for the polymorphism by polymerase chain reaction amplification and restriction digestion using Nco1. There was no increased frequency of the A allele in patients compared to control subjects. AA homozygous patients had less reversible airflow obstruction (p < 0.05) and a significantly greater mortality (both all-cause and respiratory deaths) on follow-up (p < 0.001), despite a shorter cigarette smoking history. Conclusions: This study suggests that homozygosity for this A allele predisposes to more severe airflow obstruction and a worse prognosis in COPD.
引用
收藏
页码:971 / 975
页数:5
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