Evidence map›Paper›PMID 26037537›Full record

ArticleHuman brain mapping2015

Dopaminergic correlates of metabolic network activity in Parkinson's disease.

Florian Holtbernd, Yilong Ma, Shichun Peng, Frank Schwartz, Lars Timmermann, Lutz Kracht, Gereon R Fink, Chris C Tang, David Eidelberg, Carsten Eggers

Open access · greenAbstract read
In one paragraph

Article in Human brain mapping, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
5.3field-weighted citation impact, top 4% 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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.

  1. Pooled it
  2. Correlations between dopaminergic dysfunction and abnormal metabolic network activity in REM sleep behavior disorder.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Trial
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Neurology · 2024
    Article
  10. Covering Basic Needs on Molecular Imaging.Movement disorders clinical practice · 2024
    Article
  11. Functional Brain Networks to Evaluate Treatment Responses in Parkinson's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Article
  12. Article
  13. Review
  14. Article
  15. Seed-Based Connectivity Prediction of Initial Outcome of Subthalamic Nuclei Deep Brain Stimulation.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Article
  16. Review
  17. Review
  18. Article
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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

10 authors at 4 institutions in 2 countries.

Florian HoltberndCenter for Neurosciences, The Feinstein Institute for Medical Research, Manhasset, New York, 11030.
Yilong MaCenter for Neurosciences, The Feinstein Institute for Medical Research, Manhasset, New York, 11030.
Shichun PengCenter for Neurosciences, The Feinstein Institute for Medical Research, Manhasset, New York, 11030.
Frank SchwartzDepartment of Neurology, University of Cologne, Cologne, Germany.
Lars TimmermannDepartment of Neurology, University of Cologne, Cologne, Germany.
Lutz KrachtMax-Planck Institute for Neurological Research, Cologne, Germany.
Gereon R FinkDepartment of Neurology, University of Cologne, Cologne, Germany.
Chris C TangCenter for Neurosciences, The Feinstein Institute for Medical Research, Manhasset, New York, 11030.
David EidelbergCenter for Neurosciences, The Feinstein Institute for Medical Research, Manhasset, New York, 11030.
Carsten EggersDepartment of Neurology, University of Cologne, Cologne, Germany.
Feinstein Institute for Medical Research · USUniversity of Cologne · DECenter for Neurosciences · USMax Planck Institute for Metabolism Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson's disease (PD) is associated with distinct metabolic covariance patterns that relate to the motor and cognitive manifestations of the disorder. It is not known, however, how the expression of these patterns relates to measurements of nigrostriatal dopaminergic activity from the same individuals. To explore these associations, we studied 106 PD subjects who underwent cerebral PET with both (18) F-fluorodeoxyglucose (FDG) and (18) F-fluoro-L-dopa (FDOPA). Expression values for the PD motor- and cognition-related metabolic patterns (PDRP and PDCP, respectively) were computed for each subject; these measures were correlated with FDOPA uptake on a voxel-by-voxel basis. To explore the relationship between dopaminergic function and local metabolic activity, caudate and putamen FDOPA PET signal was correlated voxel-wise with FDG uptake over the entire brain. PDRP expression correlated with FDOPA uptake in caudate and putamen (P < 0.001), while PDCP expression correlated with uptake in the anterior striatum (P < 0.001). While statistically significant, the correlations were only of modest size, accounting for less than 20% of the overall variation in these measures. After controlling for PDCP expression, PDRP correlations were significant only in the posterior putamen. Of note, voxel-wise correlations between caudate/putamen FDOPA uptake and whole-brain FDG uptake were significant almost exclusively in PDRP regions. Overall, the data indicate that PDRP and PDCP expression correlates significantly with PET indices of presynaptic dopaminergic functioning obtained in the same individuals. Even so, the modest size of these correlations suggests that in PD patients, individual differences in network activity cannot be explained solely by nigrostriatal dopamine loss.

Indexed as

AdultBrainBrain MappingDopamineFemaleFluorine RadioisotopesFluorodeoxyglucose F18HumansLevodopaMaleMiddle AgedNeural PathwaysParkinson DiseasePositron-Emission TomographyRadiopharmaceuticalsDopamineFluorine RadioisotopesFluorodeoxyglucose F18LevodopaRadiopharmaceuticalsbrain networksdopamineFDOPAParkinson's diseasePET

Identifiers

PMID26037537
PMCPMC6869564
OpenAlexW1900092052

What OpenQuestion holds

Textmetadata
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.