Effect of Erythropoietin on Microvascular Anastomosis in Rat
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Published:2015-10-09
Issue:9
Volume:14
Page:1629-1634
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ISSN:1596-9827
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Container-title:Tropical Journal of Pharmaceutical Research
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language:
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Short-container-title:Trop. J. Pharm Res
Author:
Şentürk S,Karaçor Z,Tosun Z,Özkan A,Avunduk C,Zümrüt M
Abstract
Purpose: To investigate the re-endothelialization potential of erythropoietin (EPO) following microvascular anastomosis in rat femoral artery.Methods: Ninety-six male Sprague-Dawley rats weighing between 300 g and 320 g were allocated randomly into two groups (control and EPO, n = 48). Left femoral artery microvascular anastomosis was performed in the rats. The control group was given 0.5 mL of 0.09 % NaCl subcutaneously 48 h postoperatively while the EPO group was given 150 U/kg recombinant human erythropoietin subcutaneously 48 h post-operatively. Tissue was harvested from each group after 1, 3, 5, and 7 days. All of the rats were sacrificed for morphometric analysis. Each arterial segment was analyzed morphometrically using Clemex Image Analysis software by a single examiner. The cross-sectional area of the media and neointima was measured and the intima/media ratio was calculated. Hematocrit measurement was carried out for all the rats.Results: The I/M ratio differed significantly (p < 0.05) between the control and erythropoietin groups, at all time-points. The hematocrit was significantly (p < 0.05) lower in the control group than in the erythropoietin groups on day 7, but not on the other days.Conclusion: This study demonstrates that erythropoietin markedly inhibits neointima formation with accelerated re-endothelialization in rat femoral arteries following microvascular anastomosis.Keywords: Erythropoietin, Microvascular anastomosis, Re-endothelialization, Hematocrit, Neointima/media ratio
Publisher
African Journals Online (AJOL)
Subject
Pharmacology (medical),Pharmaceutical Science