Individual and combined biochemical and histological effect of Cypermethrin and Carbendazim in male albino rats

Cypermethrin (CYP) and Carbendazim (CAR) are synthetic pesticides that have been in use for more than a decade. A study of a low-dose exposure of these pesticides in rat administered different doses of each of these compounds, individually and in combination, followed by investigation of the biochemical and histological status of the rat brain, will highlight early enzymatic and histological changes that generally accompanied a toxic response in the animal. Thus, even though CYP was used at 5, 10, 25 and 50mM, for durations of 12 and 24hr in the different groups of rats, results of the study indicate that simultaneous with changes in enzyme activity, histological sections of specific rat brain yielded observations suggestive of degenerating tissue morphology and architecture even at the low-dose levels.. Tissue specific changes in the activities of these marker enzymes were suggestive of the lack of tissue resistance to pyrethroids or carbamates.