嗜酸粒细胞性支气管炎患者气道炎症细胞及介质特征的探讨  

Characteristics of airway inflammatory cells and mediators in eosinophilic bronchitis patients

作　　者：罗炜[1] 赖克方[1] 陈如冲[1] 刘春丽[1] 曾运祥[1] 钟淑卿[1] 李德容[1] 吴华[1] 何梦璋[1] 钟南山[1] 

机构地区：[1]广州医学院第一附属医院广州呼吸疾病研究所,510120

出　　处：《中华结核和呼吸杂志》2005年第9期626-629,共4页Chinese Journal of Tuberculosis and Respiratory Diseases

基　　金：广东省自然科学基金资助项目(020371);广州市科技局重点攻关资助项目(2002Zz-E0091)

摘　　要：目的观察嗜酸粒细胞性支气管炎(EB)诱导痰和支气管肺泡灌洗液(BALF)中细胞分类和炎症介质浓度,探讨EB的气道炎症特征。方法对43例EB(EB组)患者行诱导痰检查,将20例咳嗽变异型哮喘(CVA)患者(CVA组)、16例典型支气管哮喘(哮喘组)患者和21名健康人(健康对照组)行对照诱导痰检查,并对部分EB(11例)和CVA患者(10例)行支气管肺泡灌洗(BAL)。观察检测诱导痰、BALF中的细胞分类、嗜酸粒细胞阳离子蛋白(ECP)、白三烯C4(LTC4)和组胺的浓度。结果EB组患者诱导痰中嗜酸粒细胞(EOS)百分比为0.1130±0.1470,CVA组为0.1900±0.1800,哮喘组为0.3860±0.2670,与健康对照组(0.0020±0.0050)比较差异有统计学意义(P均<0.01);哮喘组与CVA组、CVA组与EB组比较差异均有统计学意义(P均<0.05);EB组BALF中EOS为0.011±0.016,CVA组为0.053±0.040,两组比较差异有统计学意义(P<0.05);EB组诱导痰中的ECP浓度为(0.62±0.66)mg/L、CVA组为(1.27±1.74)mg/L,对照组为(0.07±0.10)mg/L,3组间比较差异有统计学意义(P<0.01);CVA组诱导痰中的LTC4浓度为(0.65±0.62)μg/L,EB组为(0.39±0.61)μg/L,对照组为(0.15±0.11)μg/L,3组间比较差异有统计学意义(P分别<0.05、0.01);CVA组BALF中组胺浓度为(3.4±1.4)μg/L,EB组为(1.6±1.5)μg/L,两组比较差异有统计学意义(P<0.05)。结论EB组EOS炎症主要局限于中心气道,部分气道炎性介质水平低于CVA组。上述气道炎性特征可能是EB患者无非特异性气道高反应性的重要机制。Objective To investigate the features of airway inflammation in patients with eosinophilic bronchitis （EB） by analyzing the inflammatory cells and mediators in induced sputum and bronchoalveolar lavage fluid （BALF）. Methods Sputum induced by hypertonic saline aerosol inhalation was collected in 43 patients with EB （EB group）, 20 patients with cough variant asthma （CVA, CVA group）, 16 patients with bronchial asthma （asthma group） and 21 healthy controls （healthy group）. Bronchoalveolar lavage was also performed in 11 patients with EB and 10 patients with CVA. Differential cell count was carried out in sputum and BALF. Levels of eosinophilic cationic protein（ ECP）, leukotriene C4 （ LTC4 ） and histamine in sputum and BALF were measured. Results The percentage of sputum eosinophils （EOS） showed significant difference among the four groups; healthy group 0. 002 0 ± 0. 005 0, EB group 0. 113 0±0. 147 0, CVA group 0. 190 0 ±0. 180 0, asthma group 0.386 0 ±0.267 0 （P 〈0.01）. The difference between asthma group and CVA group, and the difference between CVA group and EB group were significant （P 〈 0. 05 ）. The percentage of EOS in BALF was （0. 011 ± 0. 016） in EB group, （0. 053 ± 0. 040） in CVA group, the difference being significant （P 〈0. 05）. The concentration of sputum ECP was （0. 62 ±0. 66） mg/L in EB group, （ 1.27 ± 1.74） mg/L in CVA group, （0. 07 ± 0. 10） mg/L in healthy group, the difference among the three groups being significant （P 〈 0. 01 ）. The difference of LTC4 level was also significant when CVA group （ 0. 65 ± 0. 62 ）μg/L was compared with EB group （ 0. 39 ± 0. 61 ）μg/L （ P 〈 0.05） and healthy group （0. 15 ± 0. 11 ）μg/L （ P 〈 0. 01 ）. The difference of histamine level in the supernatant of BALF was significant between CVA group （3.4 ± 1.4）μg/L and EB group（ 1.6 ± 1.5）μg/L （P〈0.05）. Conclusions EOS infiltration is mainly localized to the central airway in EB, with lower ai

关 键 词：嗜酸粒细胞性支气管炎 气道炎症细胞 炎症介质 灌洗液 气道高反应性 

分 类 号：R562.21[医药卫生—呼吸系统]