Pathological study of Braken Fern ( Pteridium aquilinium ) toxicity in Rats
A pathological study of bracken fern ( Pteridium aquilinium ) toxicity was conducted in rats. Twenty albino rats were randomly divided in to 4 groups. The first three groups were received diet containing 10 %, 20 % and 30 % bracken fern powder respectively. The fourth group was served as control. The experimental rats were sacrificed after one month. Gross and histopathological examination reveal lesions in many organs . Gross lesions revealed congestion of all internal organs, while the histopathological lesions were characterized by spongiosis, perivascular cuffing and astrocytosis in the brain. Swollen hepatocytes accompanied by vacuolation and fatty degeneration in the liver. Suppurative pneumonia with infiltration of inflammatory cells in the lungs. In the intestine, the villi were fused with a proliferation of cryptal enterocytes. Interstitial nephritis associated by degenerative changes in the renal tubular epithelial cells. Acute cystitis with edematous lamina propria and neutrophilic infiltration were seen in the urinary bladder. These lesions were more sever in the group 3 incomparism with group 1 and 2 . No lesions were observed in the control group