肺炎衣原体与慢性阻塞性肺疾病相关性

目的探讨肺炎衣原体(Cpn)感染与慢性阻塞性肺疾病(COPD)的临床相关性。方法随机选择COPD急性加重住院患者46例(第1组),COPD稳定期患者35例(第2组),对照组为同期参加呼吸疾病体检的老年人82例。分离外周血单核细胞(PBMC),用直接免疫荧光(DIF)及PCR法检测PBMC中Cpn特异性抗原(Cpn-Ag)和Cpn-DNA。同时用间接微量免疫荧光(MIF)法检测Cpn抗体(IgA、IgG和IgM),用胶乳增强免疫比浊法检测血浆中超敏C-反应蛋白(Hs-CRP)。通过前瞻性病例对照研究来分析Cpn感染与COPD的相关性。结果PCR和DIF两种方法的结果相似,COPD患者组和对照组比较,Cpn感染率差异有统计学意义(P<0.01)。代表急性感染的Cpn-Ag和IgM抗体的检出率第1组比对照组显著增高,代表慢性感染的Cpn-IgA和IgG抗体的检出率第1组和第2组均比对照组显著增高(P<0.01)。Cpn感染第1组患者(n=28)阿奇霉素治疗后的血浆Hs-CRP浓度比治疗前显著降低(3.80±0.59)mg/L和(4.54±0.65)mg/L(P<0.01),但是,在观察期间COPD患者Cpn-Ag和...

Correlation between Chlamydia pneumoniae and chronic obstructive pulmonary disease

Objective To explore the correlation between Chlamydia pneumoniae(Cpn) infection and chronic obstructive pulmonary disease(COPD).Methods The first group(n=46) consisted of patients who were hospitalized due to an acute exacerbation of COPD.The second group(n=35) of patients with stable COPD.The controls(n=82) were participants in a community survey on respiratory diseases in the elderly.The human peripheral blood mononuclear cells(PBMC) were separated.We used direct immunofluorescence(DIF) or PCR methods to...