Evidence map›Paper›PMID 33348472›Full record

ArticleAnnals of clinical and translational neurology2021

Dopamine D1 + D3 receptor density may correlate with parkinson disease clinical features.

Pengfei Yang, William C Knight, Huifangjie Li, Yingqiu Guo, Joel S Perlmutter, Tammie L S Benzinger, John C Morris, Jinbin Xu

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Gut-Brain Signaling in Parkinson's Disease: A Narrative Review.International journal of molecular sciences · 2026
    Review
  3. Dopaminergic signalling in gastrointestinal health and disease.Nature reviews. Gastroenterology & hepatology · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Dopamine, Immunity, and Disease.Pharmacological reviews · 2023
    Review
  11. Article
  12. Review
  13. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Pengfei YangDepartment of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
William C KnightDepartment of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
Huifangjie LiDepartment of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
Yingqiu GuoDepartment of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
Joel S PerlmutterDepartment of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
Tammie L S BenzingerDepartment of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
John C MorrisDepartment of Neurology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.
Jinbin XuDepartment of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA.ORCID 0000-0002-2120-8287
Washington University in St. Louis · US

Funding

Research Education ComponentP30AG066444 · NIA · WASHINGTON UNIVERSITY · PI DAVID M. HOLTZMAN · 2020 to 2026
$28.7M
PET Imaging of Neuroinflammation in Genetic Alzheimer's DiseaseR01AG052550 · NIA · WASHINGTON UNIVERSITY · PI Beau M Ances, Tammie Lee Smith Benzinger · 2018 to 2026
$4.2M
Dissect the mechanisms of selective regional vulnerability in Lewy Body Dementias via comparative snRNA-seq analysisR01NS123571 · NINDS · WASHINGTON UNIVERSITY · PI XU, JINBIN, ZHAO, GUOYAN · 2021 to 2025
$3.6M
POSTMORTEM VALIDATION OF BIOMARKERS FOR IMAGING PARKINSON DISEASER01NS092865 · NINDS · WASHINGTON UNIVERSITY · PI XU, JINBIN · 2016 to 2020
$1.7M
Define molecular events driving selective neuronal death in multiple neurodegenerative diseases by snRNA-seqR03AG070474 · NIA · WASHINGTON UNIVERSITY · PI XU, JINBIN, ZHAO, GUOYAN · 2021 to 2022
$315k
DOPAMINE D1, D2, AND D3 RECEPTORS AS BIOMARKERS FOR IMAGING NIGROSTRIATAL NEURONSR03NS090214 · NINDS · WASHINGTON UNIVERSITY · PI XU, JINBIN · 2014 to 2015
$153k
NIA NIH HHS P30 AG066444NIA NIH HHS R01 AG052550NIA NIH HHS R03 AG070474NIH HHS P50 AG06644NIH HHS R01 AG052550NIH HHS R01 NS092865NINDS NIH HHS R01 NS092865NINDS NIH HHS R01 NS123571NINDS NIH HHS R03 NS090214
6 · The paper itself

Abstract

objectiveDopamine D2-like receptors - mainly dopamine D2 receptors (D2R) and dopamine D3 receptors (D3R) - are believed to be greatly involved in the pathology of Parkinson disease (PD) progression. However, these receptors have not been precisely examined in PD patients. Our aim was to quantitatively calculate the exact densities of dopamine D1 receptors (D1R), D2R, and D3R in control, Alzheimer disease (AD), and Lewy body disease (LBD) patients (including PD, Dementia with Lewy bodies, and Parkinson disease dementia); and analyze the relationship between dopamine receptors and clinical PD manifestations.

methodsWe analyzed the densities of D1R, D2R, and D3R in the striatum and substantia nigra (SN) using a novel quantitative autoradiography procedure previously developed by our group. We also examined the expression of D2R and D3R mRNA in the striatum by in situ hybridization.

resultsThe results showed that although no differences of striatal D1R were found among all groups; D2R was significantly decreased in the striatum of PD patients when compared with control and AD patients. Some clinical manifestations: age of onset, PD stage, dopamine responsiveness, and survival time after onset; showed a better correlation with striatal D1R + D3R densities combined compared to D1R or D3R alone.

interpretationThere is a possibility that we may infer the results in diagnosis, treatment, and prognosis of PD by detecting D1R + D3R as opposed to using dopamine D1 or D3 receptors alone. This is especially true for elderly patients with low D2R expression as is common in this disease.

Indexed as

AgedAged, 80 and overAutoradiographyBrainFemaleHumansMaleParkinson DiseaseReceptors, Dopamine D1Receptors, Dopamine D2Receptors, Dopamine D3Receptors, Dopamine D1Receptors, Dopamine D2Receptors, Dopamine D3

Identifiers

PMID33348472
PMCPMC7818081
OpenAlexW3116835117

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.