Cited by 159Alzheimer's disease research and treatmentsNeuroscience and Neuropharmacology ResearchNeuroinflammation and Neurodegeneration Mechanisms

Biochemical and molecular studies of NMDA receptor subunits NR1/2A/2B in hippocampal subregions throughout progression of Alzheimer's disease pathology

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Mishizen-Eberz, Amanda J, Rissman, Robert A, Carter, Troy L, Ikonomovic, Milos D, Wolfe, Barry B, Armstrong, David M·2004·Neurobiology of Disease

Abstract

Alzheimer's disease (AD) is characterized by loss of specific cell populations within selective subregions of the hippocampus. Excitotoxicity, mediated via ionotropic glutamate receptors, may play a crucial role in this selective neuronal vulnerability. We investigated whether alterations in NMDA receptor subunits occurred during AD progression. Employing biochemical and in situ hybridization techniques in subjects with a broad range of AD pathology, protein levels, and mRNA expression of NR1/2A/2B subunits were assayed. With increasing AD neuropathology, protein levels and mRNA expression for NR1/2B subunits were significantly reduced, while the NR2A subunit mRNA expression and protein levels were unchanged. Cellular analysis of neuronal mRNA expression revealed a significant increase in the NR2A subunit in subjects with moderate neurofibrillary tangle neuropathology. This investigation supports the hypothesis that alterations occur in the expression of specific NMDA receptor subunits with increasing AD pathologic severity, which is hypothesized to contribute to the vulnerability of these neurons.

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Crossref · 10.1016/j.nbd.2003.09.016

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  • GluN2A and GluN2B expression levels decrease in vulnerable brain regions, including the hippocampus and cerebral cortex, in AD.

    “GluN2A and GluN2B expression levels (mRNA and protein) were also found to decrease in vulnerable brain regions, including the hippocampus and cerebral cortex in AD [62].”

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Authors
Mishizen-Eberz, A. J., Rissman, R. A., Carter, T. L., Ikonomovic, M. D., Wolfe, B. B., & Armstrong, D. M.
Affiliations
  • Lankenau Institute for Medical Research (US)
  • Georgetown University Medical Center (US)
Corresponding author
Mishizen-Eberz, Amanda J
Venue
Neurobiology of Disease
Publisher
Elsevier BV
Published
2004-02
Volume
15
Issue
1
Pages
80-92
ISSN
0969-9961 (ISSN-L)
OpenAlex
W2024849224
Cited by
156
References
55
Citations by year
2026: 4 · 2025: 5 · 2024: 7 · 2023: 4 · 2022: 9 · 2021: 7 · 2020: 5 · 2019: 5 · 2018: 6 · 2017: 7 · 2016: 10 · 2015: 8 · 2014: 12 · 2013: 7 · 2012: 6
FWCI
1.53
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Disease (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health (5r01ag008206-15)
  • National Institute on Aging (AG 08206)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, NMDA receptor subunits, NR1, NR2A, NR2B, hippocampus, excitotoxicity, ionotropic glutamate receptors, neurofibrillary tangles, selective neuronal vulnerability, mRNA expression, protein abundance, disease progression
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Female, Hippocampus, Humans, Immunohistochemistry, Male, Middle Aged, Neurons, RNA, Messenger, Down-Regulation, Up-Regulation, Receptors, N-Methyl-D-Aspartate, Neurofibrillary Tangles, Disease Progression, Protein Subunits

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