Studies on the effect of fenbendazole and mebendazole on some enzymes of swine kidney worm Stephanurus dentatus

Singh, K.; Kaushal, P.

Applied Parasitology 37(3): 217-223


ISSN/ISBN: 0943-0938
PMID: 8856948
Accession: 002968342

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The effect of fenbendazole and mebendazole on the activity of some enzymes of the homogenates of swine kidney worm Stephanurus dentatus was investigated. Fenbendazole at 10(-5) M inhibited malate oxidation by 49% and 51% and oxaloacetate reduction by 33% and 40% whereas, mebendazole at 10(-5) M diminished malate oxidation by 25% and 35% and oxaloacetate reduction by 12% and 14% in male and female S. dentatus, respectively. Lactate dehydrogenase activity was inhibited by 45% and 50% in male and female worm respectively by 10(-5) M fenbendazole. Aldolase activity in both male and female S. dentatus was inhibited by 10(-5) M fenbendazole and mebendazole. Fenbendazole at 10(-5) M caused moderate inhibition of acid and alkaline phosphomonoesterases but mebendazole did not show a significant effect on these enzymes. Cholinesterase activity was not affected significantly with either compound. The possible mode of action of the two compounds is compared.