瘦素在肥胖成人哮喘发病机制中的研究

2018-09-03 10:45:22李俊翁育清曾利恒
中国医药导报 2018年13期

李俊 翁育清 曾利恒

[摘要] 目的 研究瘦素与肥胖成人哮喘Thl/Th2细胞因子及症状严重程度的相关性,进一步探讨肥胖成人哮喘的发病机制。 方法 选取2016年7~12月珠海市人民医院(以下简称“我院”)哮喘患者100例为研究对象,按照体重指数(BMI)将其分为肥胖哮喘组、非肥胖哮喘组各50例,选取同期我院健康体检者50例为对照组,并根据BMI分为肥胖组、正常体重对照组各25例。用酶联免疫吸附法(ELISA)测定血清瘦素、γ-干扰素(INF-γ)、白细胞介素-4(IL-4)及肺功能、哮喘控制测试(ACT)评分。分析瘦素与INF-γ、IL-4及肺功能、ACT评分之间的相关性。 结果 肥胖哮喘组瘦素、IFN-γ、IFN-γ/IL-4水平均高于其他组别(P < 0.05),血清瘦素水平与ACT评分、第一秒用力呼气容积%预计值(FEV1%Pred)呈负相关(r= -0.501、-0.384,均P < 0.05),与IFN-γ、IFN-γ/IL-4呈正相关(r= 0.446、0.423,均P < 0.05),但与IL-4无明显相关性(r= -0.189,P > 0.05)。 结论 肥胖哮喘组患者较其他组血清瘦素水平更高,与哮喘临床症状严重程度呈正相关,且有可能通过参与Th1型细胞因子所介导的气道高反应性。

[关键词] 瘦素;肥胖;哮喘;细胞因子

[中图分类号] R562.25 [文献标识码] A [文章编号] 1673-7210(2018)05(a)-0055-04

[Abstract] Objective To observe the correlationship between serum leptin, Th1/Th2 cytokine and symptom severity in obese adult asthma patients, and investigate the pathogenesis of obese adult asthma. Methods From July to December 2016, 100 patients with asthma admitted to the Zhuhai People′s Hospital (“our hospital” for short) were selected as research objects, and they were divided into obese asthma group (50 cases) and non-obese asthma group (50 cases)by BMI. Fifty cases of healthy people at the same time in our hospital for physical examination were selected as control group, and were divided into obese group (25 cases) and non-obese control group (25 cases). Serum leptin, INF-γ and IL-4 were detected using ELISA, as well as did the concurrent pulmonary function and asthma contml test (ACT). The correlationship between serum leptin, INF-γ, IL-4, pulmonary function and ACT was analyzed. Results The serum leptin, IFN-γ and IFN-γ/IL-4 in obese asthma groud were significantly higher than those in other groups (P < 0.05). The leptin levels in obese asthma groud showed a negative correlation with ACT and FEV1%Pred (r= -0.501, -0.384, all P < 0.05), but a positive correlation with IFN-γ and IFN-γ/IL-4 (r= 0.446, 0.423, all P < 0.05), and no correlation with IL-4 (r= -0.189, P > 0.05). Conclusion The serum leptin in obese asthma patients has a higher level and a positive correlation with clinical severity, and probably plays a role in airway hyperresponsiveness by Th1 cytokine mediating.

[Key words] Leptin; Obesity; Asthma; Cytokine

哮喘是一種由多种细胞、细胞组分及炎症介质共同参与的气道慢性非特异性炎症疾病,其发病机制复杂且未明。目前,Th2占主导作用的Th1/Th2细胞调节失衡的气道炎症学说得到国内外多数学者的公认,但这一理论并不能完全解释哮喘的发病机制。肥胖作为哮喘的独立危险因素,在哮喘的发病机制中日益受到关注。肥胖型哮喘作为2014全球哮喘防治创议(GINA)[1]专门提出的一种新的疾病,目前发现其并没有通过一贯的Th2介导的炎症途径来影响哮喘。本研究主要针对肥胖成人哮喘,通过研究瘦素与Thl/Th2细胞因子及哮喘症状严重程度的相关性,进一步探讨肥胖型哮喘的发病机制以及为寻找更有效的治疗方法提供新的思路及理论依据。……

登录APP查看全文