目的观察戒烟干预对慢性阻塞性肺疾病( COPD )患者肺功能的影响,及干预后肺功能的变化与超氧化物歧化酶3(SOD3)基因多态性与其浓度的关系,进一步探讨戒烟干预对COPD肺功能影响的机制。方法采用便携式肺功能仪检测60例给予戒烟干预的 COPD 患者、40例未干预COPD患者(对照组)干预前,干预3个月后及6个月后的肺功能,联合应用聚合酶链式反应( PCR)与连接酶检测反应( LDR)测序分型技术检测两组患者SOD3基因多态性的分布,并通过酶联免疫吸附测定( ELISA )方法检测血清中SOD3浓度。结果① COPD戒烟干预组戒烟3个月及6个月后一秒钟用力呼气容积( FEV1%)及一秒率( FEV1/FVC%)均有升高(P0.05)。② SOD3基因型对干预组戒烟后的肺功能改变值差异无统计学意义(P >0.05)。③ COPD干预组与对照组3个月及6个月前后血清SOD3浓度改变值差异无统计学无意义( P>0.05)。干预组CC和CG/GG基因型个体血清SOD3浓度3个月后及6个月后改变值差异无统计学意义( P>0.05)。结论戒烟干预对COPD患者短期肺功能改善有意义。而SOD3基因型不同对干预后肺功能无影响。戒烟干预对COPD患者的血浆SOD3浓度无影响,且与SOD3基因型表达无关。%Objective To explore the smoking cessation intervention impact on lung with genetic polymorphism of SOD3. The aim is to further reveal the importance of smoking cessation intervention on early COPD patients. Meth-ods 60 COPD patients with smoking cessation intervention and 40 COPD patients without intervention ( the control group) were enrolled in this study. Limosis peripheral blood was taken and whole blood corpuscle genomic DNA was extracted. The genetic polymorphism of SOD3 genes was determined by ligase detection reaction and polymerase chain reaction ( LDR-PCR) and serum SOD3 concentration was measured using ELISA. Lung function between the two groups before and after intervention were detected by microspirometry. Results ①The FEV1% and the FEV1/FVC% were increased after 3 and 6 months intervention in smoking cessation group(P0.05). ③The serum of SOD3 concentration of COPD intervention group and the control have no significance after intervention ( P>0.05 ) . ④ The serum of SOD3 concentration a-bout CC and CG/GG genotype in COPD intervention group have no significance after 3 and 6 months intervention ( P>0.05 ) . Conclusion Smoking cessation interventions for patients with COPD pulmonary function improves significance in short-term. But different SOD3 genotypes have no effect on lung function after intervention. Smoking cessation intervention has no effect on in serum SOD3 concentration of COPD patients, and has no relationship be-tween the expression of SOD3 genetype.
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