Cited by 84Alcohol Consumption and Health EffectsNeuroscience and Neuropharmacology ResearchBarrier Structure and Function Studies

Histochemical Study of Aldehyde Dehydrogenase in the Rat CNS

Zimatkin, Sergey M.·1991·Journal of Neurochemistry

Abstract

A quantitative histochemical method was developed to determine aldehyde dehydrogenase (EC 1.2.1.3; ALDH) activity in the CNS. The distribution of ALDH activity in all rat brain and spinal cord regions is described. Among the CNS neuron structures, high enzyme activity was found in receptor and effector neurons, whereas low activity was noted in perikarya of the majority of intermediate neurons, including all aminergic neurons. A positive correlation was demonstrated between the distribution of ALDH activity among rat CNS microregions (our own data) and the density of dopaminergic terminals, dopamine content, and monoamine oxidase activity (literature data) among the same microregions. They may reflect a spatial linkage between ALDH and the predicted sites of natural aldehyde production. Lower enzyme activity was found in phylogenetically younger brain structures. It may explain the differential resistance of CNS structures to ethanol (acetaldehyde). Among the barrier CNS structures, moderate ALDH activity was found in capillaries and surrounding astrocytes and high activity was noted in ependimocytes covering the brain cavities and those of the vascular plexus. This provides realization of the function of ALDH as a brain metabolic barrier for aldehydes.

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Crossref · 10.1111/j.1471-4159.1991.tb02555.x

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Authors
Zimatkin, S. M.
Corresponding author
Zimatkin, Sergey M.
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
1991-01
Volume
56
Issue
1
Pages
1-11
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W1970845055
Cited by
84
References
28
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 3 · 2021: 3 · 2020: 2 · 2019: 3 · 2017: 3 · 2016: 1 · 2015: 2 · 2014: 2 · 2013: 7 · 2012: 1
FWCI
1.09
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
aldehyde dehydrogenase, enzyme activity distribution, central nervous system, brain regions, spinal cord, receptor neurons, aminergic neurons, dopaminergic terminals, dopamine, monoamine oxidase, aldehyde metabolism, ethanol tolerance, blood-brain barrier, capillaries, astrocytes, ependymal cells, brain evolution
MeSH terms
Acetaldehyde, Aldehyde Dehydrogenase, Animals, Benzaldehydes, Blood-Brain Barrier, Brain, Capillaries, Cyanamide, Disulfiram, Histocytochemistry, Male, Neurons, Spinal Cord, Tissue Distribution, Biogenic Monoamines, Rats

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