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    Protective effect of erdosteine on erythrocyte deformability in a rat model of lower limb ischemia/reperfusion injury
    (Tubitak Scientific & Technical Research Council Turkey, 2018) Ozer, Abdullah; Demirtas, Huseyin; Comu, Faruk Metin; Erer, Dilek; Kilic, Yigit; Mardin, Baris; Oktar, G. Levent
    Background/aim: The protective effect of erdosteine on local and distant organ injury due to ischemia/reperfusion has been well documented but its effect on erythrocyte deformability needs further investigation. Our aim was to investigate the effect of erdosteine on erythrocyte deformability in the infrarenal aorta of rats undergoing ischemia/reperfusion. Materials and methods: Our study was conducted with 18 Wistar albino rats. Rats were divided into 3 groups: a randomized control group (group 'control', n = 6), an ischemia/reperfusion group without erdosteine (group 'ischemia/reperfusion', n = 6), and an ischemia/reperfusion group with erdosteine at 150 mg kg(-1), intraperitoneally (group 'ischemia/reperfusion - erdosteine', n = 6). Packs of erythrocytes were prepared from heparinized blood samples and deformability measurements were conducted. Results: Comparisons of the control and ischemia/reperfusion - erdosteine groups revealed similar results (P = 0.051). The values of the ischemia/reperfusion group were significantly higher than those of the control and ischemia/reperfusion - erdosteine groups (P < 0.0001 and P = 0.024, respectively). Relative resistance, a marker of erythrocyte deformability, was increased significantly by ischemia/reperfusion compared to the control and ischemia/reperfusion - erdosteine groups (P < 0.05). Conclusion: We detected unfavorable effects of ischemia/reperfusion on erythrocyte deformability, which may lead to disturbance in blood flow and hence tissue perfusion in the infrarenal rat aorta. We also found that erdosteine had beneficial effects by reversing undesirable effects of ischemia/reperfusion. However, these promising results should be further supported by more detailed studies with larger volumes.