Fig. 3
From: Folic acid and melatonin mitigate diabetic nephropathy in rats via inhibition of oxidative stress
Urine volume throughout the 24 h period. Concentrations of albumin, Na+, and K+ in urine, and Na+ and K+ in plasma from different rat groups. The letters a (p-value < 0.05), b (p-value <0.01) and c (p-value <0.001)) indicate significant differences in the different rat groups in comparison to the control (CN) group. The letters x (p-value < 0.05), y (p-value <0.01) and z (p-value < 0.0001) indicate significant differences in the significant of the different rat groups in comparison to the diabetic (STZ-treated) group