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J Brachial Plex Peripher Nerve Inj 2006; 01(01): e3-e7
DOI: 10.1186/1749-7221-1-2
Research article
Coban et al; licensee BioMed Central Ltd.

Ischemic preconditioning reduces the severity of ischemia-reperfusion injury of peripheral nerve in rats[*]

Yusuf Kenan Coban
1   Dept. Of Plastic Surgery, Sutcuimam University, School of Medicine, Kahramanmaraş, Turkey
,
Harun Ciralik
2   Dept. Of Pathology, Sutcuimam University, School of Medicine, Kahramanmaraş, Turkey
,
Ergul Belge Kurutas
3   Dept. Of Biochemistry, Sutcuimam University, School of Medicine, Kahramanmaraş, Turkey
› Author Affiliations
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Publication History

20 February 2006

29 September 2006

Publication Date:
20 August 2014 (online)

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Abstract

Background and aim Allow for protection of briefly ischemic tissues against the harmful effects of subsequent prolonged ischemia is a phenomennon called as Ischemic Preconditioning (IP). IP has not been studied in ischemia-reperfusion (I/R) model of peripheral nerve before. We aimed to study the effects of acute IP on I/R injury of peripheral nerve in rats.

Method 70 adult male rats were randomly divided into 5 groups in part 1 experimentation and 3 groups in part 2 experimentation. A rat model of severe nerve ischemia which was produced by tying iliac arteries and all idenfiable anastomotic vessels with a silk suture (6-0) was used to study the effects of I/R and IP on nerve biochemistry. The suture technique used was a slip-knot technique for rapid release at time of reperfusion in the study. Cytoplasmic vacuolar degeneration was also histopathologically evaluated by light microscopic examination in sciatic nerves of rats at 7th day in part 2 study.

Results 3 hours of Reperfusion resulted in an increase in nerve malondialdehyde levels when compared with ischemia and non-ischemia groups (p < 0.001 and p < 0.0001 respectively). IP had significantly lower nerve MDA levels than 3 h reperfusion group (p < 0.001). The differences between ischemic, IP and non-ischemic control groups were not significant (p > 0.05). There was also a significant decrease in vacoular degeneration of sciatic nerves in IP group than I/R group (p < 0.05).

Conclusion IP reduces the severity of I/R injury in peripheral nerve as shown by reduced tissue MDA levels at 3 th hour of reperfusion and axonal vacoulization at 7 th postischemic day.

*This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


 

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