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PM2.5颗粒协同屋尘螨抗原Der p1在小儿哮喘发作中的机制分析

2018-10-24孙剑玥

上海医药 2018年19期

孙剑玥

摘 要 目的:研究PM2.5颗粒协同屋尘螨抗原Der p1在小儿哮喘发作中的作用。方法:96例哮喘发作患儿随机分为PM2.5组、屋尘螨组、协同组和对照组各24例,对比临床效果。结果:对照组哮喘控制率显著高于PM2.5组和屋尘螨组,协同组最低;控制时间最短,其次为PM2.5组和屋尘螨组组,协同组最长(P<0.05)。干预后各组肺功能FVC、FEV1和PEF水平较前增加,且对照组明显高于PM2.5组和屋尘螨组,协同组最低(P<0.05)。治疗后对照组血清IL-25、TSLP和丙二醛含量明显降低,而其他三组明显升高(P<0.05)。结论:PM2.5颗粒和屋尘螨抗原Der p1可通过炎症反应和氧化应激影响小儿哮喘的治疗效果。

关键词 PM2.5颗粒 屋尘螨抗原Der p1 哮喘 肺功能 丙二醛

中图分类号:R725.6 文献标志码:B 文章编号:1006-1533(2018)19-0050-04

Mechanism analysis of PM2.5 coordinated house dust mite antigen Der p1 in children with asthma

SUN Jianying*

(Department of Pediatrics, the Central Hospital of Putuo District, Shanghai 200062, China)

ABSTRACT Objective: To study the effect of PM2.5 granule coordinated house dust mite antigen Der p1 in children with asthma. Methods: Ninety-six children with asthma were randomly divided into a PM2.5 group, a house dust mite group, a coordinated group and a control group with 24 cases each. Clinical effects were compared among these groups. Results: The control rate of asthma was higher and the time for asthma control was shorter in the control group than the PM2.5 group, the house dust mite group and the coordinated group (P<0.05). The levels of FVC, FEV1 and PEF were all increased after treatment than before and furthermore were significantly higher in the control group than the PM2.5 group, the house dust mite group and the coordinated group (P<0.05). The contents of serum IL-25, thymic stromal lymphopoietin and malondialdehyde were significantly decreased in the control group while were increased in the other three groups after treatment (P<0.05). Conclusion: PM2.5 granule and house dust mite antigen Der p1 can affect the therapeutic effect of asthma in children by inflammatory reaction and oxidative stress.

KEy WORDS PM2.5 granule; house dust mite antigen Der p1; asthma; lung function; malondialdehyde

支气管哮喘在儿童中发病率逐年升高,严重急性发作时救治不及时可危及生命;控制不佳的哮喘患儿可导致误工、误学、活动受限、生活质量下降,严重影响正常的生长发育[1]。儿童的免疫系统发育不完善,易受外界各种刺激如环境中PM2.5颗粒、屋尘螨抗原Der p1等,造成气道慢性炎症反应,机体Thl/Th2平衡紊乱,形成气道高反应性,诱发急性哮喘或慢性哮喘持续状态[2]。细胞离体和动物模型研究证实[3],PM2.5颗粒、屋尘螨抗原Der p1和两者协同作用均可诱发和加重哮喘,引起炎症反应和免疫失调。基于此,该研究从人体临床治疗方面分析其对哮喘的影响机制,以期为提高临床治疗效果提供重要参考依据。

1 对象与方法

1.1 对象资料

连续选择2015年1月至2017年6月入我院诊断哮喘发作患儿共96例,纳入标准:①年龄5~18岁;②首次诊断哮喘,首次接受治疗,无激素、支气管舒张剂等用药史;③依从性好,临床资料完善。排除标准:①重症哮喘持续发作,合并肺炎、气道畸形、咳嗽变异性哮喘、过敏性哮喘等;②激素或支气管舒张剂过敏,其他药物或食物明确的过敏史;……

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