C: control (normal) rats; D: Diabetics rats; D+G: Diabetic rats treated with Garlic extract; D+ EMg: Diabetic rats treated with α-tocopherol+Mg. Values are the mean of 6 measurements ± SD. **Significant difference as compared to control rats (C) (p ≤ 0.01). ++Significant difference between treated diabetic rats (D+G; D+EMg) and diabetic rats (D).

Figure 2: Serum creatinine (μmol/l) and urea (mmol/l) levels after 4 weeks in control, diabetic and treated diabetic rats.