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Histopathological effect of aqueous extract of alfalfa on the changes of pancreatic islets of alloxan-induced diabetic rats at the end of 21 days. (A) Negative control – pancreas, (B) diabetic control – shows depleted islets, (C) diabetic rats treated with 250 mg/l of extract – shows preserved islets, and (D) diabetic rats treated with 500 mg/l of extracts – shows full regeneration of islets and exocrine. All panels were stained with hematoxylin and eosin, 400× magnification
