Cited by 64Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsNeurotransmitter Receptor Influence on Behavior

Loss of Dopamine Uptake Sites Labeled with [ 3 H]GBR-12935 in Alzheimer’s Disease

Allard, Per, Alafuzoff, Irina, Carlsson, Arvid, Eriksson, Kristina, Ericson, Ewa, Gottfries, Carl-Gerhard, Marcusson, Jan O.·2008·European Neurology

Abstract

The binding of the dopamine uptake inhibitor [3H]GBR-12935 to postmortem putamen from a control group and patients with Alzheimer's disease/senile dementia of Alzheimer type (AD/SDAT) or vascular dementia (VD) was studied. The binding density (Bmax) in AD/SDAT was significantly reduced to 50% of control. A reduction of Bmax in VD was also noted, but it did not reach statistical significance. No differences in apparent binding affinity (Kd) between controls and dementia groups were obtained. The concentrations of dopamine (DA), dihydroxyphenylacetic acid (DOPAC), 3-methoxytyramine (3-MT) and homovanillic acid were also determined. The concentrations of DA and DOPAC were reduced by 30-40% in AD/SDAT and VD, but the reductions did not reach statistical significance. The concentration of 3-MT was reduced by 40% in AD/SDAT and by 30% in VD. The [3H]GBR-12935-binding densities correlated significantly with corresponding concentrations of DA in control brains. It is suggested that the loss of [3H]GBR-12935-binding sites in human putamen in AD/SDAT reflects a degeneration of dopamine neurites.

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Crossref · 10.1159/000117341

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Authors
Allard, P., Alafuzoff, I., Carlsson, A., Eriksson, K., Ericson, E., Gottfries, C.-G., & Marcusson, J. O.
Affiliations
  • Umeå University (SE)
  • Karolinska Institutet (SE)
  • University of Gothenburg (SE)
Venue
European Neurology
Publisher
S. Karger AG
Published
2008-02-14
Volume
30
Issue
4
Pages
181-185
ISSN
  • 0014-3022 (ISSN-L)
  • 1421-9913
OpenAlex
W2074882701
Cited by
64
References
0
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 3 · 2018: 1 · 2016: 2 · 2015: 2 · 2014: 2 · 2013: 2
FWCI
0.47
Type
journal article
Language
en
Open access
closed
Locations
  • European Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Vetenskapsrådet
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
Alzheimer's disease, senile dementia of the Alzheimer type, vascular dementia, dopamine uptake, putamen, dopamine transporter, dopamine, dihydroxyphenylacetic acid, 3-methoxytyramine, homovanillic acid
MeSH terms
Aged, Alzheimer Disease, Dopamine, Female, Homovanillic Acid, Humans, Kinetics, Ligands, Male, Methyltyrosines, Middle Aged, Piperazines, Putamen, Receptors, Dopamine, alpha-Methyltyrosine, In Vitro Techniques

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