• J. Surg. Res. · Nov 2010

    Effect of preconditioned hyperbaric oxygen and ozone on ischemia-reperfusion induced tourniquet in skeletal bone of rats.

    • Kenan Koca, Yuksel Yurttas, Serkan Bilgic, Tuncer Cayci, Turgut Topal, Murat Durusu, Umit Kaldirim, Emin Ozgur Akgul, Huseyin Ozkan, Ibrahim Yanmis, Erbil Oguz, Servet Tunay, Ahmet Korkmaz, and Mustafa Basbozkurt.
    • Department of Orthopaedic Surgery, Gulhane Military Medical Academy, Etlik-Ankara, Turkey. drkenankoca@yahoo.com
    • J. Surg. Res. 2010 Nov 1;164(1):e83-9.

    BackgroundThe aim of the study was to investigate effect of I/R injury on bone tissue and protective role of hyperbaric oxygen precondition (HBO-PC) and ozone precondition (O(3)-PC) on I/R injury by using biochemical analysis.Materials And MethodsThirty-two rats were included in study. The animals were divided into four equal groups: sham operation, I/R, I/R+HBO and I/R+O(3). One session of 60 min, 3 ATA, 3-4 L/min, 100% oxygenation was defined as one dose of HBO. First dose of HBO was administrated 72 h before ischemia. Subsequent, one-dose of HBO administrated per 12 hours until ischemia time (total seven doses); 0.7 mg/kg ozone/oxygen mixture intraperitoneally was defined as one dose of ozone. First dose of O(3) was administered 72 h before ischemia (total four doses). I/R model was induced in anesthetized rats by unilateral (right) femoral artery clipping for 2 h followed by 22 h of reperfusion. The right tibia and were harvested. Tissue was assayed for levels of malondialdehyde (MDA) and protein carbonyl (PCO), activities of superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px).ResultsMDA and PCO levels were increased in I/R group. SOD activity was increased; GSH-Px activity was decreased in I/R group. MDA and PCO levels were decreased, SOD and GSH-Px activities were increased in both HBO+I/R and O(3)+I/R groups.ConclusionIt has been shown that levels of MDA and PCO in bone were increased followed by 2 h of ischemia and 22 h of reperfusion period. Ozone-PC and HBO-PC has protective effect against skeletal bone I/R injury by decreasing levels of MDA and PCO, increasing activities of SOD and GSH-Px in rats.Copyright © 2010 Elsevier Inc. All rights reserved.

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