检验医学 ›› 2025, Vol. 40 ›› Issue (6): 525-533.DOI: 10.3969/j.issn.1673-8640.2025.06.002

• 论著 • 上一篇    下一篇

LDH、MO#和LMR在RA-ILD鉴别诊断中的价值

王丽, 唐玲, 金亚雄, 张君龙, 高雪丹, 牛倩()   

  1. 四川大学华西医院实验医学科,四川 成都 610041
  • 收稿日期:2024-06-04 修回日期:2024-11-28 出版日期:2025-06-30 发布日期:2025-07-01
  • 通讯作者: 牛倩
  • 作者简介:牛 倩,E-mail:niuqian991@126.com
    王 丽,女,1993年生,学士,技师,主要从事自身免疫性疾病相关血清学指标检验工作。
  • 基金资助:
    国家自然科学基金项目(82272400)

Roles of LDH,MO# and LMR in differential diagnosis of RA-ILD

WANG Li, TANG Ling, JIN Yaxiong, ZHANG Junlong, GAO Xuedan, NIU Qian()   

  1. Department of Clinical Laboratory,West China Hospital,Sichuan University,Chengdu 610041,Sichuan,China
  • Received:2024-06-04 Revised:2024-11-28 Online:2025-06-30 Published:2025-07-01
  • Contact: NIU Qian

摘要:

目的 探讨实验室常规指标在类风湿关节炎(RA)伴间质性肺疾病(ILD)鉴别诊断中的应用价值。方法 选取2014年1月—2021年10月四川大学华西医院RA-ILD患者80例(RA-ILD组)和单纯RA患者89例(单纯RA组)。收集所有患者的一般资料和实验室常规检测结果[全血细胞计数、抗环瓜氨酸肽(CCP)抗体、类风湿因子(RF)、C反应蛋白(CRP)、红细胞沉降率(ESR)、乳酸脱氢酶(LDH)],并计算淋巴细胞/单核细胞比值(LMR)、中性粒细胞/淋巴细胞比值(NLR)和中性粒细胞/单核细胞比值(NMR)。依据性别、年龄和抗CCP抗体、RF水平将所有患者分别分组。采用Logistic回归分析评估RA-ILD发生的影响因素。采用受试者工作特征(ROC)曲线评价各项指标鉴别诊断RA-ILD的效能。结果 RA-ILD组LDH和MO#均高于单纯RA组(P<0.05),LMR低于单纯RA组(P<0.05);其他指标2个组之间差异均无统计学意义(P>0.05)。LDH和LMR的变化在女性组和年龄<60岁组中更为显著。LDH、MO#升高和LMR降低是RA-ILD发生的危险因素[比值比(OR)值分别为1.01、8.317、0.805,95%可信区间(CI)分别为1.003~1.017、1.555~44.498、0.671~0.966,P<0.05]。LDH、MO#、LMR单项检测和联合检测鉴别诊断RA-ILD的曲线下面积(AUC)分别为0.697、0.611、0.633和0.744;在女性、年龄<60岁或抗CCP抗体<170 U·mL-1的患者中,LDH有较高的鉴别诊断效能(AUC分别为0.777、0.763、0.817)。结论 LDH、MO#升高和LMR降低与RA-ILD发生风险增加有关,尤其是对于女性或年龄<60岁的RA患者。LDH、MO#、LMR或可作为RA-ILD鉴别诊断和风险评估的指标。

关键词: 乳酸脱氢酶, 单核细胞绝对数, 淋巴细胞/单核细胞比值, 类风湿关节炎, 间质性肺疾病

Abstract:

Objective To assess the roles of routine laboratory indicators for the differential diagnosis of rheumatoid arthritis(RA)associated with interstitial lung disease(ILD). Methods Totally,80 patients with RA-ILD diagnosed at West China Hospital of Sichuan University from January 2014 to October 2021 were enrolled as RA-ILD group,and 89 patients with RA were enrolled as RA group. The general data and clinical laboratory routine determination results [complete blood count,anti-cyclic citrullinated peptide(CCP)antibody,rheumatoid factor(RF),C-reactive protein(CRP),erythrocyte sedimentation rate(ESR),lactate dehydrogenase(LDH)] were collected. Lymphocyte/monocyte ratio(LMR),neutrophil/lymphocyte ratio(NLR)and neutrophil/monocyte ratio(NMR)were calculated. They were classified according to genders,ages,anti-CCP antibodies and RF levels. The influencing factors of RA-ILD were evaluated by Logistic regression analysis. Receiver operating characteristic(ROC)curve was used to evaluate the differential diagnosis efficiency of RA-ILD. Results Compared with RA group,the level of LDH and the absolute value of monocytes (MO#) were increased in RA-ILD group,while LMR was decreased(P<0.05). There was no statistical significance for the other indicators(P>0.05). The changes in LDH and LMR were obvious in female subgroup and <60 years old subgroup. Elevated LDH,MO# and reduced LMR were risk factors for RA-ILD [odds ratios(OR) were 1.010,8.317 and 0.805,95% confidence intervals(CI)were 1.003-1.017,1.555-44.498 and 0.671-0.966,P<0.05]. The areas under curves(AUC)of LDH,MO# and LMR single and combined determinations for the differential diagnosis of RA-ILD were 0.697,0.611,0.633 and 0.744,respectively. LDH was more effective in the differential diagnosis of RA-ILD in female,<60 years old,or anti-CCP antibody <170 U·mL-1 patients. Conclusions Elevated LDH and MO#,as well as reduced LMR,are associated with an increased risk of RA-ILD,particularly in female patients or patients <60 years old. LDH,MO# and LMR may be used as the important and rapid tool for the differential diagnosis and risk prediction of RA-ILD.

Key words: Lactate dehydrogenase, Absolute value of monocytes, Lymphocyte/monocyte ratio, Rheumatoid arthritis, Interstitial lung disease

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