Cited by 105Cholinesterase and Neurodegenerative DiseasesNeuroscience and Neuropharmacology ResearchPesticide Exposure and Toxicity

Butyrylcholinesterase and the cholinergic system

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Reid, G.A., Chilukuri, N., Darvesh, S.·2013·Neuroscience

Abstract

The cholinergic system plays important roles in neurotransmission in both the peripheral and central nervous systems. The cholinergic neurotransmitter acetylcholine is synthesized by choline acetyltransferase (ChAT) and its action terminated by acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). The predominance of AChE has focused much attention on understanding the relationship of this enzyme to ChAT-positive cholinergic neurons. However, there is ample evidence that BuChE also plays an important role in cholinergic regulation. To elucidate the relationship of BuChE to neural elements that are producing acetylcholine, the distribution of this enzyme was compared to that of ChAT in the mouse CNS. Brain tissues from 129S1/SvImJ mice were stained for BuChE and ChAT using histochemical, immunohistochemical and immunofluorescent techniques. Both BuChE and ChAT were found in neural elements throughout the CNS. BuChE staining with histochemistry and immunohistochemistry produced the same distribution of labeling throughout the brain and spinal cord. Immunofluorescent double labeling demonstrated that many nuclei in the medulla oblongata, as well as regions of the spinal cord, had neurons that contained both BuChE and ChAT. BuChE-positive neurons without ChAT were found in close proximity with ChAT-positive neuropil in areas such as the thalamus and amygdala. BuChE-positive neuropil was also found closely associated with ChAT-positive neurons, particularly in tegmental nuclei of the pons. These observations provide further neuroanatomical evidence of a role for BuChE in the regulation of acetylcholine levels in the CNS.

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Crossref · 10.1016/j.neuroscience.2012.12.054

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Authors
Reid, G. A., Chilukuri, N., & Darvesh, S.
Affiliations
  • Dalhousie University (CA)
  • United States Army (US)
Corresponding author
Darvesh, S.
Venue
Neuroscience
Publisher
Elsevier BV
Published
2013-03
Volume
234
Pages
53-68
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2091134922
Cited by
105
References
44
Citations by year
2026: 9 · 2025: 9 · 2024: 8 · 2023: 8 · 2022: 11 · 2021: 9 · 2020: 14 · 2019: 10 · 2018: 10 · 2017: 6 · 2016: 6 · 2015: 1 · 2014: 3 · 2013: 1
FWCI
2.70
Type
journal article
Language
en
Open access
Locations
  • Neuroscience (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Pesticide Exposure and Toxicity
Keywords
butyrylcholinesterase, acetylcholinesterase, choline acetyltransferase, cholinergic system, acetylcholine, cholinergic neurons, medulla oblongata, spinal cord, thalamus, amygdala
MeSH terms
Acetylcholine, Animals, Brain, Butyrylcholinesterase, Choline O-Acetyltransferase, Male, Medulla Oblongata, Spinal Cord, Mice, Molecular Imaging, Cholinergic Neurons

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