Fig. 5

Comparative immunofluorescence analysis: A insulin (red), glucagon (green), DAPI (blue), and merged (black) in pancreas tissue sections of (i) control; (ii) STZ-induced diabetic nephropathy rats; (iii) DN rats treated with CD, cinnamaldehyde; and (iv) DN rats treated with AG, aminoguanidine. Magnification ×200. B Fasting blood glucose and serum insulin levels in all experimental rats. Treatment groups were compared with diabetic nephropathy. Data expressed as median ± SEM. n = 8–12 (One-way ANOVA was performed with the Bοnferrοni pοst hοc test)