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Figure 2: H and E, staining of kidney sections. In the control group, normal histological appearance of renal cortex, glomerulus, and tubular epithelial cells (a). In the potassium dichromate, group glomeruli appear normal, damage to tubular epithelial cells (→) and presence of hyaline casts in the tubular lumen (b). In the melatonin-treated potassium dichromate group (c) and caffeic acid phenethyl ester-treated potassium dichromate (d), the presence of hyaline casts in tubular lumen. Glomeruli appear normal. Melatonin and caffeic acid phenethyl ester treated potassium dichromate group, the generally intact tubular epithelial cells and a cast free tubular lumen. Glomeruli appear normal (e) (p: Proximal tubule, d: Distal tubule, g: Glomeruli, hc: Hyaline cast [Bar 20 μm])

Figure 2: H and E, staining of kidney sections. In the control group, normal histological appearance of renal cortex, glomerulus, and tubular epithelial cells (a). In the potassium dichromate, group glomeruli appear normal, damage to tubular epithelial cells (→) and presence of hyaline casts in the tubular lumen (b). In the melatonin-treated potassium dichromate group (c) and caffeic acid phenethyl ester-treated potassium dichromate (d), the presence of hyaline casts in tubular lumen. Glomeruli appear normal. Melatonin and caffeic acid phenethyl ester treated potassium dichromate group, the generally intact tubular epithelial cells and a cast free tubular lumen. Glomeruli appear normal (e) (p: Proximal tubule, d: Distal tubule, g: Glomeruli, hc: Hyaline cast [Bar 20 μm])