The antioxidant status of coenzyme Q10 and vitamin E in children with type 1 diabetes

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Objective: The purpose of this study was to evaluate the antioxidant status of plasma vitamin E and plasma and intracellular coenzyme Q10 in children with type 1 diabetes. Method: This case–control study was conducted on 72 children with type 1 diabetes and compared to 48 healthy children, who were age, sex, and ethnicity-matched. The diabetic children were divided according to their glycosylated hemoglobin (A1c %) into two groups: poor and good glycemic control groups. All children underwent full history taking, clinical examination, and laboratory measurement of complete blood count, A1c %, plasma cholesterol, triglycerides, and vitamin E levels and coenzyme Q10 levels in plasma, erythrocytes, and platelets. Results: Children with poor glycemic control showed significantly higher plasma vitamin E, coenzyme Q10, triglycerides, low-density lipoproteins, waist circumference/height ratio, cholesterol levels, and lower high-density lipoproteins and platelet coenzyme Q10 redox status in comparison to those with good glycemic control and the control group (p < 0.05). Plasma coenzyme Q10 showed a positive correlation with the duration of type 1 diabetes, triglycerides, cholesterol, vitamin E, and A1c %, and negative correlation with the age of the diabetic group (p < 0.05). The platelet redox status showed a negative correlation with the A1c % levels (r = −0.31; p = 0.022) and the duration of type 1 diabetes (r = −0.35, p = 0.012). Conclusion: Patients with type 1 diabetes, especially poorly controlled, had elevation of plasma vitamin E and coenzyme Q10 levels and decreased platelet redox status of coenzyme Q10, which may be an indicator of increased oxidative stress.




Alkholy, U. M., Abdalmonem, N., Zaki, A., Elkoumi, M. A., Hashim, M. I. A., Basset, M. A. A., & Salah, H. E. (2019). The antioxidant status of coenzyme Q10 and vitamin E in children with type 1 diabetes. Jornal de Pediatria, 95(2), 224–230.

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