Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (36): 5805-5812.doi: 10.3969/j.issn.2095-4344.2014.36.012

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Harmine has no lung-protective effects in a canine model of lung ischemia-reperfusion injury

Zhang Hao, Qi Hai, Li Yuan-ming, Chen Jia-hua   

  1. Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • Revised:2014-06-03 Online:2014-08-30 Published:2014-08-30
  • Contact: Qi Hai, Chief physician, Professor, Doctoral supervisor, Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • About author:Zhang Hao, Studying for master’s degree, Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China

Abstract:

BACKGROUND: Inflammatory cell activation and the generation of oxygen free radicals are important factors of lung ischemia-reperfusion injury. Adding the drugs with anti-inflammation and antioxidant effects into the lung preservation solution used, can improve the protection fluid, and play a crucial role in the study of lung ischemia-reperfusion injury and protection of the function of transplanted lung.
OBJECTIVE: To discussion the effect of harmine in canine model of pulmonary ischemia-reperfusion injury.
METHODS: Twelve healthy hybrid dogs were randomly divided into two groups, with six rats in each group. A canine model of lung ischemia-reperfusion injury was established, and the protecting liquid was perfused with the clockwise irrigation method. Control group: low potassium dextran protective fluid; experimental group: low potassium dextran + harmine protective fluid. After 2 hours of ischemia, the left lung circulation was recovered. The left lung tissue and blood samples were collected from two groups of animal models after reperfusion, and their cytokines levels and the lung wet/dry weight ratio were detected and calculated. Bronchoalveolar lavage fluid was collected to observe the pathological indicators. The main pulmonary artery pressure, left and right pulmonary artery pressure were recorded by continuous monitoring.
RESULTS AND CONCLUSION: There were no statistically significant differences in the interleukin-17, tumor necrosis factor α and endothelin 1 content in the left lung tissue and the blood between the two groups at 2 and  4 hours after reperfusion (P > 0.05). After 4 hours of reperfusion in both groups, the neutrophil number, the 
number of lymphocytes, alveolar edema index, and vascular wall damage in bronchoalveolar lavage fluid showed no statistically significant differences (P > 0.05). Through the analysis of variance, the main pulmonary artery pressure, left pulmonary artery pressure and right pulmonary artery pressure also had no statistical significance between the two groups (P > 0.05). By the analysis of cytokines, pathological indicators, lung wet/dry weight ratio, and pulmonary arterial pressure, harmine has no significant lung protection effect in canine model of lung ischemia-reperfusion injury.



中国组织工程研究
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Key words: models, animal, reperfusion injury, lung, dextrans, harmine

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