Abstract
The present study emphasizes the effect of unspent tannins on liver, kidney and heart of albino rats. Oral administration of unspent tannins at three different concentrations was made for a period of seven days. Carbon tetrachloride served as positive control. Tissues were removed carefully followed by sacrifice and were subjected to sectioning and H&E staining. Histopathological examination of the sections showed, major tissue damage with the highest concentration of tannins (1500mg/kg body weight) irrespective of their nature and source, followed by moderate damage with the 1000mg/kgbw and zero damage with 500mg/kgbw. However, complete damage was observed with the tissues of positive control group. Lipid peroxidase assay using post-mitochondrial supernatant of liver, kidney and heart showed appreciable levels of malondialdehyde release at higher concentrations of tannins.
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