Interleukin-6 in bronchoalveolar lavage fluid from patients with COPD

VernacularTitle:慢性支气管炎患者支气管肺灌洗液中IL-6分析
Author: Weidong SONG ¹ ; Jiangyun ZHAO ; Zhengang LI
Author Information

1. University of Science & Technology of China
Keywords: bronchoalveolar lavage; chronic obstructive pulmonary diseases; emphysema; Interleukin-6
From: Chinese Medical Journal 2001;114(11):1140-1142
CountryChina
Language:Chinese
Abstract: Objective To obtain new insights into the behavior of Interleukin-6(IL-6)in bronchoalveolar lavage fluid (BALF)and released from alveolar macrophages(AM)in chronic obstructive pulmonary diseases (COPD),and reveal the relationship between IL-6 and the development of emphysema in COPD.Methods IL-6 in BALF and released by AM in BALF were examined in 7 non-smoking subjects and 21 patients with COPD.According to the 95% confidence limits of IL-6 in BALF from non-smoking subjects,the patients were divided into two groups:those who were within the limits were assigned to the first group,and those who were above the limits were assigned to the second group.Results The concentration of IL-6 released by AM was much higher in the second group than in the first one.Between the two groups,significant differences were found in pulmonary function.Conclusion Our results suggest that the concentration of IL-6 released by AM may be related with pulmonary function,and IL-6 may play a role in the development of emphysema in patients with COPD.