• Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, P. R. China;
MENGWei, Email: meng_wei_1111@yahoo.com
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Objective To investigate the effect and mechanism of ulinastatin to ventilator induced lung injury (VILI). Methods Total 24 SD rats were randomly divided into a control group, a VILI group, and a VILI+ ulinastatin group. High mobility group box-1 (HMGB-1), tumor necrosis factor (TNF)-α and interleukin (IL)-6 in bronchoalveolar lavage fluid, toll like receptor-4, dry/wet ratio and pathological scores of lung tissue were detected in the three groups. Results HMGB-1, TNF-α, and IL-6 in bronchoalveolar lavage fluid, toll like receptor-4, dry/wet ratio and pathological scores of lung tissue were significantly higher in the VILI group than those in the control group with statistical differences (P<0.05). While HMGB-1, TNF-α, and IL-6 in bronchoalveolar lavage fluid, toll like receptor-4, dry/wet ratio and pathological scores of lung tissue were reduced in the VILI+ ulinastatin group compared with those in the VILI group. Conclusion Ulinastatin may protect ventilator induced lung injury by reducing inflammation level in lung through HMGB-1-TLR4 pathway.

Citation: XIAO Zheng-hua, GU Jun, QIN Chao-yi, HU Jia, FANG Zhi, MENG Wei. Protective Effect and Mechanism of Ulinastatin for Ventilation-induced Lung Injury in Rats. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2016, 23(10): 1001-1005. doi: 10.7507/1007-4848.20160238 Copy