Volume 14, Issue 55 (Jun 2006)                   J Adv Med Biomed Res 2006, 14(55): 1-8 | Back to browse issues page

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Gholami M R, Abulhasani F, Pasbakhsh P, Sobhani A, Asadi Amoli F, Karimfar M H. Ischemic and Reperfusion Injury of Adult Rat Sciatic Nerve. J Adv Med Biomed Res 2006; 14 (55) :1-8
URL: http://journal.zums.ac.ir/article-1-118-en.html
Abstract:   (172394 Views)

Background and Objective: Ischemia plays a major role in development of pathological changes in various neuropathies. Reperfusion amplifies physiological and pathological abnormalities in ischemic nerves. In this research, we studied ischemic-reperfusion (IR) injury of sciatic nerve up to 14 days of reperfusion.
Materials & Methods: IR was produced by ligation and release of nooses around supplying vessels to the sciatic nerve. 30 rats were assigned into 5 groups of 6. Group 1 (control) did not undergo IR while the 4 remaining groups after three hours of complete hind leg ischemia underwent reperfusion within 0hr, 3hrs, 7 days and 14 days.
Results: Pathologically, two phases were identifiable. During phase 1 (0- 3 hrs) fiber degeneration and endoneurial edema were observed. During phase 2 ( 7 days and, 14 days) prominent fiber degeneration and prominent endoneurial edema were observed. Loss of function occurred in more than 75% of the rats with ischemia alone, in comparison with the control group the maximum reduction in activities was observed amongest the group of rats reperfused within 3 hours.
Conclusion: IR injury depends on duration of reperfusion. Microvascular events during reperfusion may enhance the nerve fiber damage following the ischemia period.

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Type of Study: Original Research Article |
Received: 2007/11/12 | Accepted: 2014/06/30 | Published: 2014/06/30

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