实用医学杂志 ›› 2020, Vol. 36 ›› Issue (21): 2931-2936.doi: 10.3969/j.issn.1006⁃5725.2020.21.009

• 临床研究 • 上一篇    下一篇

血清中性粒细胞明胶酶相关脂钙蛋白在慢性阻塞性肺疾病中的临床意义

陈星如,王导新   

  1. 重庆医科大学附属第二医院呼吸与危重症医学科(重庆400010)
  • 出版日期:2020-11-10 发布日期:2020-11-30
  • 通讯作者: 王导新E⁃mail:wangdaoxin2011@sina.com
  • 基金资助:
    国家自然科学基金面上项目(编号:81670071)

Clinical significance of the serum neutrophil gelatinase⁃associated lipocalin in chronic obstructive pulmo⁃nary disease

CHEN Xingru,WANG Daoxin   

  1. Department of Respiratory Medicine,Second Affiliated Hospital of Chongqing Medical University,Chongqing 400010,China
  • Online:2020-11-10 Published:2020-11-30
  • Contact: WANG Daoxin E⁃mail:wangdaoxin2011@sina.com

摘要:

目的 本研究主要探讨中性粒细胞明胶酶相关脂钙蛋白(neutrophil gelatinase⁃associated lipo⁃calin,NGAL)在慢性阻塞性肺疾病(chronic obstructive pulmonary disease,COPD)中的诊断价值。方法 收集2018年6月至2019年12月期间在重庆医科大学附属第二医院呼吸与危重症医学科住院治疗的97例COPD患者作为病例组。同时段纳入50例健康成人作为对照组。将病例组分为慢性阻塞性肺疾病急性加重(AECOPD)及COPD合并社区获得性肺炎(COPD⁃CAP)2个亚组。根据GOLD分级将病例组分为GOLDⅠ、Ⅱ、Ⅲ、Ⅳ 4个亚组。用ELISA法检测入组成员入院第1天血清NGAL水平,收集其基本信息和临床指标。采用单因素统计方法明确各组间有统计学差异的变量,并进行NGAL与肺功能指标的Spearman相关性分析,绘制ROC曲线图分析NGAL在COPD患者中的诊断价值。结果COPD⁃CAP及AECOPD患者血清NGAL水平均显著高于健康对照组,且COPD⁃CAP患者其血清NGAL水平显著高于AECOPD患者,差异均具有统计学意义(P < 0.05)。GOLDⅢ、Ⅳ组NGAL水平均显著大于GOLDⅡ组(P < 0.05)。Spearman相关分析表明NGAL与FEV1%pred、FVC% pred 呈负相关。ROC 生存曲线表明NGAL 对于AECOPD 及COPD⁃CAP 均具有较高的诊断价值,且NGAL具有区分诊断GOLDⅠⅡ与GOLDⅢⅣ的价值。结论 血清NGAL在COPD患者急性炎症事件反应过程中发挥重要作用。同时NGAL在肺功能严重等级区分方面的作用,表明其与气道重塑密切相关。

关键词: 慢性阻塞性肺疾病急性加重期, 社区获得性肺炎, 中性粒细胞明胶酶相关脂钙蛋白(NGAL), 炎症因子, 气道重塑, GOLD分级

Abstract:

Objective This study mainly explored the diagnostic value of neutrophil gelatinase⁃associatedlipocalin(NGAL)in chronic obstructive pulmonary disease(COPD). Methods We collected 97 COPD patientsin respiratory and critical medical departments in the second affiliated hospital of Chongqing medical universityfrom June 2018 to December 2019 as the case group. 50 healthy adults were included as control group. Patientswere further divided into two subgroups:acute exacerbation of chronic obstructive pulmonary disease(AECOPD)and COPD combined community⁃acquired pneumonia(COPD⁃CAP). Then the patients were divided into 4 sub⁃groups:GOLDⅠ,Ⅱ,Ⅲ,Ⅳ. The serum NGAL level was detected by ELISA method,the basic information andclinical indexes were collected. Single factor analysis was used to identify the factors with significant differencesamong different groups. Then the Spearman correlation between NGAL and other indexes was analyzed. Finally,theROC curve was used to analyze the diagnostic value of NGAL in COPD patients. Results Serum NGAL level ofCOPD⁃CAP patients and AECOPD patients was significantly higher than that of healthy controls,and the serumNGAL level of COPD⁃CAP patients was significantly higher than that of AECOPD patients(P < 0.05). The NGALlevel in GOLD Ⅲ、Ⅳ group was significantly higher than that in GOLD Ⅱ group(P < 0.05). Spearman correlationanalysis showed negative correlation between NGAL and FEV1% pred,FVC% pred. ROC survival curves indicatethat NGAL has a high diagnostic value for both AECOPD and COPD⁃CAP. Moreover,NGAL has moderate value ofdistinguishing GOLD Ⅰ Ⅱ from GOLD Ⅲ Ⅳ. Conclusions NGAL plays an important role in the process of COPDacute inflammatory response,meanwhile,NGAL plays a role in classification of lung function severity,indicatingNGAL is correlated with airway remodeling.


Key words: acute exacerbation of chronic obstructive pulmonary disease, community?acquired pneumonia, neutrophil gelatinase?associated lipocalin(NGAL), inflammatory factor, airway remodeling, GOLD degree