Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (36): 5836-5841.doi: 10.3969/j.issn.2095-4344.2014.36.017

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Role of interleukin-1 receptor-associated kinase 4 activity in flap ischemia-reperfusion injury

Zheng Liang1, Wu Xiao-wei1, Song Hai-chen1, Jian Qi-chao2, Liu Ying-ying1, Zhao Xiang-yi1, Zhang Li-ming1   

  1. 1Department of Plastic Surgery, Renmin Hospital, Wuhan University, Wuhan 430060, Hubei Province, China
    2Department of Dermatologic Surgery, Huangshi Municipal First People’s Hospital, Huangshi 435000, Hubei Province, China
  • Revised:2014-07-25 Online:2014-08-30 Published:2014-08-30
  • Contact: Wu Xiao-wei, Chief physician, Master’s supervisor, Department of Plastic Surgery, Renmin Hospital, Wuhan University, Wuhan 430060, Hubei Province, China
  • About author:Zheng Liang, Studying for master’s degree, Department of Plastic Surgery, Renmin Hospital, Wuhan University, Wuhan 430060, Hubei Province, China
  • Supported by:

    the Natural Science Foundation of Hubei Province, No. 2011CDB501

Abstract:

BACKGROUND: Interleukin-1 receptor-associated kinase 4 activity-induced inflammations and infection have been extensively accepted. However, there was no report concerning its effects on flap ischemia-reperfusion injury.
OBJECTIVE: To explore the significance of interleukin-1 receptor-associated kinase 4 activity in flap ischemia-reperfusion injury.
METHODS: A total of 36 adult male Sprague-Dawley rats were randomized into sham-operated group (n=12), ischemia-reperfusion group (n=12) and interleukin-1 receptor-associated kinase 4 group (n=12). The models of right lower abdominal island flap ischemia-reperfusion injury were set up. Interleukin-1 receptor-associated kinase 4 group was intraperitoneally injected with 1 mL of interleukin-1 receptor-associated kinase 4 (100 μmol/L) before reperfusion. The flaps were collected at 1, 2, 4, and 6 hours after ischemia-reperfusion injury for histopathhological observation. At 1 hour after ischemia-reperfusion, protein expression of interleukin-1 receptor-associated kinase 4 was detected in flaps. The proportion of flap survival was calculated at 7 days after surgery. 
RESULTS AND CONCLUSION: Histopathological observation demonstrated that compared with the ischemia-reperfusion injury group, neutrophil infiltration and edema was evidently improved, and the protein expression of interleukin-1 receptor-associated kinase 4 was gradually reduced in the interleukin-1 receptor-associated kinase 4 group. Flap survival proportions were respectively (51.70 ±7.62)% and (86.56±12.23)% in the ischemia-reperfusion injury group and interleukin-1 receptor-associated kinase 4 group at 7 days after surgery. There were significant differences in the flap survival proportion between the two groups (P < 0.01). These results showed that after flap ischemia-reperfusion injury, the inhibition of interleukin-1 receptor-associated kinase 4 activities could elevate the survival rate of transplanted flap.



中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


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Key words: interleukin-1 receptor-associated kinases, surgical flaps, reperfusion injury, models, animal

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