• Q Yang, C S Yan, Y F Wang, X Y Li, W M Zhang, Y Xiao, S Gao, and Y Hu.
• Department of Respiratory and Critical Care Medicine, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China.
• Zhonghua Yi Xue Za Zhi. 2019 Sep 24; 99 (36): 2816-2819.

AbstractObjective: To compare the serial changes of circulating angiopoietin-2 (Ang-2), surfactant protein D (SP-D) and soluble receptor for advanced glycation end product (sRAGE) in patients with pulmonary acute respiratory distress syndrome (ARDS) and extrapulmonary ARDS. Methods: A total of 36 eligible patients with ARDS were included from the Department of Respiratory Intensive Care Unit(RCU) and Department of Intensive Care Unit (ICU), the Central Hospital of Wuhan, during April 2017 to February 2018, and divided into pulmonary ARDS group (n=20) and extrapulmonary ARDS group (n=16) according to primary causes. The levels of Ang-2, SP-D and sRAGE in serum of each group were measured on Day 1, 4 and 7 after diagnosis. Results: The serum level of Ang-2 in extrapulmonary ARDS group declined gradually during the course. The serum level of Ang-2 on Day 1 was significantly higher than that on Day 7 [2 801 (1 386, 7 526) vs 1 461 (737, 2 135) ng/L, P<0.05]. There was no significant difference in serum levels of Ang-2 on Day 1, 4, 7 in pulmonary ARDS group [1 462 (545, 3 715) vs 1 353 (659, 5 847) vs1 616 (754, 3 460) ng/L, all P>0.05]. There was no significant difference in serum levels of SP-D on Day 1,4, 7 in each group [pulmonary ARDS group: 5.6(1.8, 14.0) vs 5.7(1.8, 14.5) vs 7.9(3.0, 16.8) mg/L, all P>0.05; extrapulmonary ARDS group: 3.4(0.5, 9.1) vs 1.6(0.6, 6.3) vs 1.6(0.7, 7.9)mg/L, all P>0.05]. The serum level of sRAGE in each group declined gradually during the course. The serum level of sRAGE on Day 1 in each group was significantly higher than that on Day 7 [pulmonary ARDS group: 328(107, 595) vs 66 (50,171) ng/L, extrapulmonary ARDS group: 237 (98, 410) vs 81 (38, 154) ng/L, all P<0.05]. Conclusion: The serum level of Ang-2 in extrapulmonary ARDS declines significantly in the early stage of disease, while there is no significant difference in that of pulmonary ARDS.

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