Investigation of the toxicological and inhibitory effects of some benzimidazole agents on acetylcholinesterase and butyrylcholinesterase enzymes

Abstract

Benzimidazole, an anthelmintic used in the manufacture of human and veterinary drugs, is an important heterocyclic compound. In this work, I investigated the effect of drugs such as ricobendazole, thiabendazole, albendazole, and oxfendazole, on Acetylcholinesterase (AChE) and Butyrylcholinesterase (BChE) enzyme activity. As kinetic studies, K_i and IC₅₀ values were calculated separately for each drug, respectively. Study findings have shown that benzimidazoles inhibit both AChE and BChE enzymes at the nanomolar level. The compound that best was inhibited the AChE enzyme ricobendazole, and it was that the best inhibited the BChE enzyme thiabendazole. IC₅₀ and K_i values were calculated 123.02 nM, 28.68 ± 8.46 nM for AChE and 64.26 nM, 12.08 ± 2.18 nM for BChE respectively. The types of inhibition indicated by the drugs were investigated and they were found to show non-competitive inhibition.

Keywords:

• Inhibition
• benzimidazoles
• acetylcholinesterase
• butyrylcholinesterase

Acknowledgements

The experimental part of this study was carried out by the Igdır University Research Laboratory Practice and Research Center.

Disclosure statement

No potential conflict of interest was reported by the authors.