Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity

The discovery of acetylcholinesterase inhibitors is important for the treatment of Alzheimer's disease, which is the most common type of dementia. Due to the side effects of commonly used acetylcholinesterase inhibitors, studies aimed at discovering new inhibitors are increasing. Therefore, in...

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Main Author: Hatice Duran
Format: Article
Language:English
Published: German Journal of Pharmaceuticals and Biomaterials 2025-05-01
Series:German Journal of Pharmaceuticals and Biomaterials
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Online Access:https://www.gjpb.de/index.php/gjpb/article/view/137
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author Hatice Duran
author_facet Hatice Duran
author_sort Hatice Duran
collection DOAJ
description The discovery of acetylcholinesterase inhibitors is important for the treatment of Alzheimer's disease, which is the most common type of dementia. Due to the side effects of commonly used acetylcholinesterase inhibitors, studies aimed at discovering new inhibitors are increasing. Therefore, in this study, the effects of some benzoquinone derivatives, 1,4-benzoquinone (1a), 2,6-dichloro-1,4 benzoquinone (1b), and 2,6-dimethyl-1,4-benzoquinone (1c) on AChE enzyme were investigated. In vitro studies were conducted to understand the possible inhibition mechanism in the interaction of enzyme-benzoquinone compounds, and the effects of these compounds were examined. The quinones examined were found to exhibit effective inhibition of the AChE enzyme. IC50 values were determined to be 48-187 nM, and KI values ranged from 54 ± 0.007 nM to 262 ± 0.016 nM. These benzoquinones exhibited different inhibition mechanisms. While 1,4-benzoquinone (1a) and 2,6-dimethyl-1,4-benzoquinone (1c) showed competitive inhibition effects, 2,6-dichloro-1,4-benzoquinone (1b) exhibited noncompetitive inhibition effects. Additionally, among the compounds whose effects were examined, 2,6-dimethyl-1,4-benzoquinone (1c) showed the most effective inhibitor property with the lowest KI value. The findings will add to the body of knowledge on creating fresh, potent, and successful treatment approaches.
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spelling doaj-art-848e03b739b540b68729e5a9460dba0d2025-08-04T16:47:46ZengGerman Journal of Pharmaceuticals and BiomaterialsGerman Journal of Pharmaceuticals and Biomaterials2750-624X2750-62582025-05-014110.5530/gjpb.2025.1.2Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activityHatice Duran0Faculty of Medicine, Department of Medical Biochemistry, Kafkas University, Kars, Turkey 36100, Turkey. The discovery of acetylcholinesterase inhibitors is important for the treatment of Alzheimer's disease, which is the most common type of dementia. Due to the side effects of commonly used acetylcholinesterase inhibitors, studies aimed at discovering new inhibitors are increasing. Therefore, in this study, the effects of some benzoquinone derivatives, 1,4-benzoquinone (1a), 2,6-dichloro-1,4 benzoquinone (1b), and 2,6-dimethyl-1,4-benzoquinone (1c) on AChE enzyme were investigated. In vitro studies were conducted to understand the possible inhibition mechanism in the interaction of enzyme-benzoquinone compounds, and the effects of these compounds were examined. The quinones examined were found to exhibit effective inhibition of the AChE enzyme. IC50 values were determined to be 48-187 nM, and KI values ranged from 54 ± 0.007 nM to 262 ± 0.016 nM. These benzoquinones exhibited different inhibition mechanisms. While 1,4-benzoquinone (1a) and 2,6-dimethyl-1,4-benzoquinone (1c) showed competitive inhibition effects, 2,6-dichloro-1,4-benzoquinone (1b) exhibited noncompetitive inhibition effects. Additionally, among the compounds whose effects were examined, 2,6-dimethyl-1,4-benzoquinone (1c) showed the most effective inhibitor property with the lowest KI value. The findings will add to the body of knowledge on creating fresh, potent, and successful treatment approaches. https://www.gjpb.de/index.php/gjpb/article/view/137AChEenzymeinhibitionbenzoquinone
spellingShingle Hatice Duran
Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity
German Journal of Pharmaceuticals and Biomaterials
AChE
enzyme
inhibition
benzoquinone
title Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity
title_full Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity
title_fullStr Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity
title_full_unstemmed Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity
title_short Exploring of some benzoquinone derivatives impact on Acetylcholinesterase enzyme activity
title_sort exploring of some benzoquinone derivatives impact on acetylcholinesterase enzyme activity
topic AChE
enzyme
inhibition
benzoquinone
url https://www.gjpb.de/index.php/gjpb/article/view/137
work_keys_str_mv AT haticeduran exploringofsomebenzoquinonederivativesimpactonacetylcholinesteraseenzymeactivity