The safety profile of new antidiabetic xanthine derivatives and their chitosan based formulations.

The safety profile of new antidiabetic xanthine derivatives with thiazolidine‑4‑one scaffold (6, 7) and their new chitosan based formulations (CS-6, CS-7), administrated to diabetic rats, have been evaluated in terms of biochemical markers of liver and kidney function as well as of hematological markers. The effect on lipid profile and clinic parameters (body weight, food and water intake) has been also evaluated. The treatment of diabetic rats with xanthine derivatives (6, 7) and chitosan based formulations (CS-6, CS-7) was associated with lower liver enzymes (AST, ALT, LDH) and bilirubin (direct, total) values compared to the non-treated diabetic rats, that means the tested derivatives/formulations have improved the liver function injured in diabetes mellitus conditions. Also the kidney biochemical markers (creatinine, uric acid, urea) were significantly decreased in diabetic rats treated with 6, 7 and chitosan microparticles (CS-6, CS-7). The values of biochemical markers of liver and kidney functions were even better than the values recorded for pioglitazone, used as standard antidiabetic drug. The improving effect on kidney function was proved by the histopathological study. Moreover, the xanthine derivatives and their chitosan based formulation were associated with improved hematological markers compared to the non-treated diabetic rats which mean the improving of the hemorheological state. These results support the safety profile of new xanthine derivatives with thiazolidine‑4‑one scaffold (6, 7) and their new chitosan based formulations (CS-6, CS-7) and their potential applications for the treatment of diabetes mellitus syndrome.

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