Zingiber officinale ameliorates diabetic nephropathy and hepatotoxicity in rats by preventing tissue injury and controlling liver/kidney function

BACKGROUND: Chronic hyperglycemia results in decrease glucose metabolism leading to nephropathy, hepatotoxicity and neuropathy. Diabetic complications are regarded globally as one of the leading cause of disability and mortality. OBJECTIVE: The study aims to evaluate the role of Zingiber officinale (ZO) on diabetic nephropathy and hepatotoxicity in rats. METHODS: Thirty diabetic rats and six non-diabetic rats were distributed into six groups (n = 6). Group 1 & 2 (nondiabetic and diabetic) received distilled water at 1 ml/kg. Groups 3–5 received (12.5, 25& 50) mg/kg of ZO respectively while group 6 received 100 mg/kg metformin. All treatments lasted for 28 days and rats were euthanized on day 29. Biochemical parameters, kidney and liver histology were evaluated. RESULTS: No significant change (P >  0.05) was noticed in blood glucose and creatinine levels of diabetic rats treated with 25 mg/kg ZO compared to control. The liver of 25 mg/kg ZO treated diabetic rats showed mild distortion of hepatocytes while kidneys of ZO treated diabetic rats showed mild distortion of renal tubules with few collagen deposits and intact Bowman’s capsule. CONCLUSIONS: ZO ameliorates diabetic complications by regulating biochemical parameters and preventing renal tubules and hepatocytes damage in rats.