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Article Type

Case Report

Abstract

Background Chronic hyperglycemia of diabetes is associated with long-term damage, dysfunction, and failure of various organs, especially the heart and blood vessels. Therapy in the past few decades was mainly aimed at reducing hyperglycemia. It became clear that ameliorating oxidative stress through treatment with antioxidants might be an effective strategy for reducing diabetic complications. Medical ozone treatment may be useful in the treatment of diabetes and its complications. Objective This study aims to show the additive effect of ozone to insulin in the treatment of diabetes in rats. Materials and methods Diabetes was induced by an intraperitoneal injection of streptozotocin (45 mg/kg) in 0.2 ml of 10 mmol/l citrate buffer. Rats were considered diabetic when fasting blood glucose was at least 113 mg/dl. Rats proved to be diabetic were isolated and subdivided into four subgroups: (a) diabetic nontreated rats (n = 8), (b) diabetic ozone-treated rats (n = 8), (c) diabetic insulin-treated rats (n = 8), and (d) diabetic insulin + ozone-treated rats (n = 8). After induction, all rats were fasted for 12 h. Systolic blood pressure (SBP) was measured. Retro-orbital blood samples were collected for estimation of fasting serum glucose, glycosylated hemoglobin, total antioxidant capacity (TAC), and malondialdehyde (MAD) level. Rats were then sacrificed; vascular reactivity to norepinephrine and acetylcholine with and without endothelial lining was estimated. Results The data showed that insulin reduced the elevated fasting serum glucose, glycosylated hemoglobin, MAD, and SBP significantly when compared with the diabetic nontreated group. Also, it significantly reduced TAC and vascular reactivity to norepinephrine with and without endothelium, but there was an increase in the percent of relaxation to acetylcholine. Ozone therapy potentiated the effects of insulin on SBP and vascular reactivity. Importantly, serum MAD and TAC and glycemic state were significantly improved. Conclusion This study shows that ozone therapy may have an additive effect in the treatment of diabetes by insulin; this may attribute to the multiprotective antioxidant effect of ozone.

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