Practical Geriatrics ›› 2024, Vol. 38 ›› Issue (10): 1044-1048.doi: 10.3969/j.issn.1003-9198.2024.10.017

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Study on expression of serum IL-33/sST2 axis in elderly patients with acute exacerbation of COPD and its predictive value for prognosis

LEI Wanfeng, MA Xiuhong   

  1. Department of Respiratory Medicine, Beijing Huairou Hospital, Beijing 101400, China
  • Received:2023-11-21 Online:2024-10-20 Published:2024-10-22

Abstract: Objective To investigate the expression of serum interleukin-33 (IL-33)/soluble ST2 (sST2) axis in the elderly patients with acute exacerbation chronic obstructive pulmonary disease (AECOPD) and its prognostic value. Methods A total of 138 elderly patients with AECOPD admitted to Beijing Huairou Hospital from June 2019 to June 2022 were enrolled in the study group, and 138 elderly patients with stable COPD admitted to our hospital during the same period were enrolled in the control group. The serum levels of IL-33, sST2, IL-4 and IL-10 were detected and compared between the two groups, and the patients in the study group were divided into good prognosis group and poor prognosis group. Logistic regression analysis was used to evaluate the risk factors affecting the prognosis of the elderly patients with AECOPD, and receiver operating characteristic (ROC) curve was drawn to analyze the predictive value of serum IL-33, sST2, IL-4 and IL-10 levels for the prognosis of the elderly patients with AECOPD. Results The levels of IL-33 and sST2 in the study group were higher and the levels of IL-4 and IL-10 were lower in the study group than those in the control group (P<0.05). Among the 138 patients in the study group, 9 cases( 6.52%) were lost to follow-up. Among the 129 patients, 30 cases (23.26%) presented with poor prognosis. The levels of serum IL-33 and sST2, course of disease and proportion of complications number ≥2 in the poor prognosis group were higher than those in the good prognosis group (P<0.05), and the levels of IL-4 and IL-10 were lower than those in the good prognosis group (P<0.01). Logistic regression analysis showed that the levels of IL-33 and sST2, course of disease and complications number ≥2 were independent risk factors, and IL-4 and IL-10 were protective factors for poor prognosis in the elderly patients with AECOPD (P<0.05). ROC curve showed that the area under the curve of combined detection of serum IL-33, sST2, IL-4 and IL-10 predicting poor prognosis in the elderly patients with AECOPD was 0.864, which was higher than that of serum IL-33, sST2, IL-4 and IL-10 alone (P<0.05). Conclusions The abnormal expression of serum IL-33, sST2, IL-4 and IL-10 is closely related to the prognosis in the elderly patients with AECOPD, and the combined detection of these indicators has a higher predictive value for the poor prognosis of the elderly patients with AECOPD.

Key words: aged, chronic obstructive pulmonary disease, acute exacerbation stage, interleukin-33, soluble ST2

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