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Effects of melatonin on pathological changes in the kidney tissues of rats exposed to aluminum chloride (AlCl3): (a) control, (b) MEL, (c) AlCl3, and (d) MEL+AlCl3. Magnification at 400x. The red star indicates congested glomerulus, the white star indicates degenerated glomerulus, the blue arrow indicates inflammatory cells infiltrated, and the black arrow indicates degenerated renal tubules.
