Cited by 151Neuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on BehaviorMemory and Neural Mechanisms

An Excitant Amino Acid Projection from the Medial Prefrontal Cortex to the Anterior Part of Nucleus Accumbens in the Rat

Christie, M. J., James, L. B., Beart, P. M.·1985·Journal of Neurochemistry

Abstract

Abstract: High‐affinity uptake of neurotransmitter substrates in synaptosome‐containing homogenates and tissue concentrations of amino acids were examined in subcortical areas 5–6 days after bilateral N‐methyl‐D‐aspartate lesions confined to rat medial prefrontal cortex. D‐[3 H]Aspartate (32% of control) and [3 H]γ‐aminobutyric acid ([3 H]GABA) (60% of control) uptakes were significantly reduced in medial prefrontal cortex, whereas [3 H]choline (110% of control) uptake was unchanged, suggesting the production of axon‐sparing lesions. The uptake of D‐[3 H]aspartate (76% of control), but not of [3 H]GABA or [3 H]choline, was significantly reduced in nucleus accumbens, with no concomitant reduction in amino acid concentrations. When examined in serial coronal sections, reduced D‐[3 H]aspartate uptake was confined to the most anterior 500 μm of nucleus accumbens (67% of contralateral sample). No significant reductions of uptake or amino acid concentrations were observed in caudate putamen or ventral tegmental area. These results suggest a role for glutamate or aspartate as neurotransmitters in projections from medial prefrontal cortex to anterior nucleus accumbens. Medial prefrontal cortex may represent the major excitatory cortical input to the nucleus accumbens.

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Registry

Crossref · 10.1111/j.1471-4159.1985.tb04013.x

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  • The PFC sends out glutamatergic afferents to the VTA as well as to the nucleus accumbens, modulating dopaminergic signaling.

    “The PFC furthermore sends out glutamatergic afferents to the VTA as well as to the nucleus accumbens modulating dopaminergic signaling [204–206].”

    From Development of prefrontal cortex (2022) · cites this paper as [205]

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Authors
Christie, M. J., James, L. B., & Beart, P. M.
Affiliations
  • The University of Melbourne (AU)
  • Australian National University (AU)
Corresponding author
Christie, M. J.
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
1985-08
Volume
45
Issue
2
Pages
477-482
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W1988715191
Cited by
151
References
24
Citations by year
2021: 2 · 2019: 1 · 2017: 2 · 2016: 2 · 2015: 2 · 2014: 2 · 2013: 4 · 2012: 2
FWCI
5.23
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
medial prefrontal cortex, nucleus accumbens, glutamate, aspartic acid, excitatory amino acid neurotransmission, glutamatergic projections, NMDA lesions, GABA, choline
MeSH terms
Amino Acids, Animals, Aspartic Acid, Choline, Frontal Lobe, gamma-Aminobutyric Acid, Male, Neural Pathways, Nucleus Accumbens, Rats, Inbred Strains, Septal Nuclei, Synaptosomes, Neurotransmitter Agents, Rats

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