支气管肺泡灌洗治疗支气管哮喘的疗效及灌洗液中炎症因子水平的检测
2015-10-09李抒菡
李抒菡
[摘要] 目的 观察肺泡灌洗治疗支气管感染的临床疗效,并探讨IL-17、IL-8、IL-4等炎症因子在支气管哮喘发病中的作用。方法 随机选择该院2013年1月—2014年1月收治的30例支气管哮喘急性发作期患者纳入观察组,另选30例性别,年龄,病程资料相同的患者,进行常规治疗纳入对照组,观察组患者采用纤维支气管镜下肺泡灌洗术治疗,观察治疗后的PaO2、SaO2和PaCO2改善情况及临床疗效;同时采集所有研究对象的支气管肺泡灌洗液(BALF),采用多抗体夹心酶联免疫吸附方法检测2组BALF中IL-17、IL-8、IL-4的含量。 结果 经支气管肺泡灌洗治疗后,观察组总有效率为96.6%,PaO2和SaO2均较治疗前升高,差异有统计学意义(P<0.05),PaCO2较治疗前降低,差异有统计学意义(P<0.05);观察组BALF上清液中IL- 17、IL-8的水平较正常对照组升高,差异有统计学意义(P<0.05)。结论 支气管肺泡灌洗可显著改善支气管哮喘患者气道功能,临床疗效显著。 IL-17、IL-8 可能介导了支气管哮喘患者急性发作期的发作。
[关键词] 支气管肺泡灌洗;气管哮喘;炎症因子
[中图分类号] R562.2 [文献标识码] A [文章编号] 1674-0742(2015)08(b)-0008-02
[Abstract] Objective To observe the clinical efficacy of bronchoalveolar lavage in the treatment of bronchial asthma and investigate the role of inflammatory cytokines, such as IL-17, IL-8, IL-4 in the pathogenesis of bronchial asthma. Methods 30 patients with acute exacerbation of bronchial asthma admitted in our hospital from January 2013 to January 2014 were enrolled into observation group, and other 30 patients with the same gender, age, and data of course of disease were enrolled into the control group. Patients in the observation group were treated by bronchoalveolar lavage with fiberbronchoscope, and the control group was treated by the conventional treatment. The improvement of PaO2, SaO2 and PaCO2 and clinical efficacy were observed after treatment. Levels of IL-17, IL-8, IL-4 in bronchoalveolar lavage fluid (BALF) of all subjects were collected and detected with multi- antibody sandwich ELISA. Results After the bronchoalveolar lavage treatment, in the observation group, the total effective rate was 96.6%, PaO2 and SaO2 increased significantly(P<0.05) and PaCO2 decreased significantly compared with pre-treatment(P<0.05); the levels of IL-17 and IL-8 in BALF supernatant in the observation group were significantly higher than those in the control group(P<0.05). Conclusion Bronchoalveolar lavage can significantly improve the airway function in patients with bronchial asthma with significant clinical effect. IL-17, IL-8 may mediate the acute exacerbation of bronchial asthma attack.
[Key words] Bronchoalveolar lavage; Bronchial asthma; Inflammatory cytokines
支气管哮喘为临床常见的嗜酸性粒细胞浸润炎症性呼吸道疾病,临床表现为气道上皮损伤、纤维化以及基底膜增厚等气道重塑现象[1]。其发病机制目前尚不明确,多与气道慢性炎症有关,常由多种炎症细胞、炎症介质及细胞因子介导[2],因此患者机体内炎症因子的水平对疾病诊断、病情判断及疾病转归均有重要意义。该研究通过检测该院2013年1月—2014年1月收治的30例哮喘急性发作患者支气管肺泡灌洗液中IL-17、IL-8、IL-4的水平,探讨以上炎症因子在支气管哮喘发病中的可能作用机制,为其临床治疗提供理论依据,现报道如下。
1 资料与方法
1.1 一般资料
随机选取的该院2013年1月—2014年1月收治的支气管哮喘患者共30例纳入观察组,其中男15例,女15例,年龄19 ~57岁,平均(34.9±7.1)岁。将同期在该院行健康体检的30例健康志愿者纳入对照组,其中男22例,女8例,年龄20~56岁,平均(35.5±6.8)岁。两组观察对象的年龄、性别比较,差异无统计学意义(P >0. 05),符合随机、对照分组原则[3]。