Irisin Protects Against Hind Limb Ischemia Reperfusion Injury

Ayşegül Küçük,1,* Yücel Polat,2 Aydan Kılıçarslan,3 Nuran Süngü,3 Hakan Kartal,4 Ali Doğan Dursun,5,* Mustafa Arslan6 1Kutahya Health Sciences University, Medical Faculty, Department of Physiology, Kutahya, Turkey; 2Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Department of Cardiovascular Surgery, Istanbul, Turkey; 3Yildirim Beyazit University, Medical Faculty, Department of Pathology, Ankara, Turkey; 4Gulhane Medical Faculty, Gulhane Education and Research Hospital, Department of Cardiovascular Surgery, Ankara, Turkey; 5Atilim University, Medical Faculty, Department of Physiology, Ankara, Turkey; 6Gazi University, Medical Faculty, Department of Anesthesiology and Reanimation, Ankara, Turkey*These authors contributed equally to this workCorrespondence: Mustafa ArslanGazi University, Medical Faculty, Department of Anesthesiology and Reanimation, Ankara, 06510, TurkeyTel +90 312 202 67 39Email mustarslan@gmail.comAim: The aim of this study was to evaluate the effects of irisin in a murine model of hind limb ischemia reperfusion (I/R).Methods: The mice were divided into four groups (n = 6 in each group): control, irisin, ischemia reperfusion (I/R), and irisin-ischemia reperfusion (I–I/R). Irisin (0.5 μg.g− 1, intraperitoneally [i.p.]) was administered 30 min before the I/R procedure. After 2 h of ischemia and 2.5 h of reperfusion, blood and tissue samples were taken for biochemical and histopathological analysis. The results were analyzed by Kruskal–Wallis and Mann–Whitney U-tests.Results: There was a statistically significant difference in the total antioxidant status (TAS) and total oxidant status (TOS) levels in all the groups. The TAS level in the I/R group was significantly lower than that in the control, irisin, and I–I/R groups, whereas the TOS level was significantly higher in the I/R group as compared with that in the other groups. Caspase-3 activity and caspase-8 activity, indicators of inflammation, were significantly higher in the I/R and I–I/R groups as compared with those in the control and irisin groups.Conclusion: Irisin may have protective effects in skeletal muscle ischemia reperfusion injury.Keywords: irisin, ischemia reperfusion, caspase-3, caspase-8, mice