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    Investigation of the effects of propofol and vitamin C administration on erythrocyte deformability in rats with streptozotocin-induced diabetes mellitus
    (Comenius Univ, 2014) Comu, F. M.; Ozturk, L.; Alkan, M.; Pampal, K.; Arslan, M.; Isik, B.; Yilmaz, D.
    Purpose: In the current study we aim to investigate the effects of vitamin C and profol on red blood cell deformability in diabetic rats Materials and methods: Twenty- eight Wistar Albino rats were included in the study after streptozocin (60 mg/kg) treatment for 4 weeks of observation for diabetes presence. Twenty-eight rats were allocated to 4 groups. In group DP (n = 7) 150 mg.kg(-1) of propofol was injected intraperitoneally. In group DP-vit C (n = 7) rats 100 mg/kg of vitamin C (Ascorbic acid, Redoxon (R) 1000 mg/5 mL - Roche) were applied one hour before administrating 150 mg.kg(-1) of propofol, while rats in control group (n = 7), and diabetic control group (n = 7) received intraperitoneally physiological saline. Deformability measurements were achieved by using erythrocyte suspensions with hematocrit level of 5 % in PBS buffer. Results: Erythrocyte deformability was significantly higher in diabetic control group than in control and vitamin C plus propofol groups (p = 0.00, p = 0.025, respectively). Erythrocyte deformability indexes were found similar in control group and vitamin C plus propofol group (p = 0.949). Relative resistance was increased in diabetic rat model. Conclusions: Erythrocyte deformability was damaged in rats with diabetes. This injury might lead to further problems in microcirculation. Application of propofol did not alter red cell deformability in diabetic rats. Vitamin C supplementation seems to reverse those negative effects and variations in erythrocyte deformability (Fig. 2, Ref. 57). Text in PDF www.elis.sk.