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    Effect of ozone on colon anastomoses in rat peritonitis model
    (Acta Cirurgica Brasileira, 2016) Cakir, Tugrul; Aslaner, Arif; Tekeli, Seckin Ozgur; Avci, Sema; Dogan, Ugur; Tekeli, Feyza; Soylu, Hakan
    PURPOSE: To investigate the effects of medical ozone theraphy on the colon anastomosis of peritonitis model in rats. METHODS: Eighteen rats were randomly assigned into three equal groups; control, cecal punctuation and colon anastomosis and ozone theraphy. Sepsis was performed with a cecal punctuation in groups 2 and 3. The medical ozone theraphy was administered intraperitonealy for three weeks in group 3 while the other rats received saline injection. At the twenty second day serum were obtained for TNF-alpha and IL-1 beta, the colonic burst pressures were measured and colonic tissue samples were obtained for MDA and MPO levels. Histolopatological examination was evaluated with H&E stain, and Ki-67, IL-1 beta and the VEGF immunostaining densities were also compared. RESULTS: Intraperitoneal ozone administration reversed TNF-alpha, IL-1 beta, MDA and MPO levels and the colonic burst pressures. There was also a significant difference at immunostaining densities of histopathological examination. CONCLUSION: Medical ozone therapy may contribute to tissue healing by affecting the proliferation and the vascularization thus has benefits on colonic anastomosis at peritonitis in rats.
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    Medical ozone treatment ameliorates the acute distal colitis in rats
    (Acta Cirurgica Brasileira, 2016) Aslaner, Arif; Cakir, Tugrul; Tekeli, Seckin Ozgur; Avci, Sema; Dogan, Ugur; Tekeli, Feyza; Soylu, Hakan
    PURPOSE: To investigate the effect of medical ozone treatment on the experimental acute distal colitis in rats. METHODS: Eighteen rats were randomly distributed into three equal groups; control, acute distal colitis (ADC) without and with medical ozone treatment. Rats in the control group were taken saline. ADC was performed by rectal way with 4% acetic acid in groups 2 and 3, and the group 3 was treated with medical ozone for three weeks both rectally and intraperitoneally. At the twenty second day the distal colons samples were obtained for malondialdehyde and myeloperoxidase, blood samples were obtained to measure the levels of TNF-alpha and IL-1 beta levels. Histolopatological examination was evaluated with Ki-67, IL-1 beta and VEGF immunostaining densities. RESULTS: There was significant increase in tissue MDA, MPO activity, TNF-alpha and IL-1 beta after ozone administration. There was also a significant difference at immunostaining densities of histopathological examination. CONCLUSIONS: Medical ozone treatment ameliorated the experimental acute distal colitis induced by acetic acid in rats. Its possible effect is by means of decreasing inflammation, edema, and affecting the proliferation and the vascularization.