Evidence map›Paper›PMID 25759166›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2015

Cerebral perfusion and cortical thickness indicate cortical involvement in mild Parkinson's disease.

Tara M Madhyastha, Mary K Askren, Peter Boord, Jing Zhang, James B Leverenz, Thomas J Grabowski

Abstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Parkinson's disease cerebrovascular reactivity pattern: A feasibility study.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  9. Article
  10. Reduced and Delayed Cerebrovascular Reactivity in Patients with Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2023
    Article
  11. Article
  12. Article
  13. Review
  14. Reduced cerebral blood flow in anJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. [Voxel-based analysis of cerebral blood flow changes in Parkinson disease using arterial spin labeling technique].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2018
    Article
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

6 authors at 3 institutions in 1 country.

Tara M MadhyasthaDepartment of Radiology, University of Washington, Seattle, USA.
Mary K AskrenDepartment of Radiology, University of Washington, Seattle, USA.
Peter BoordDepartment of Radiology, University of Washington, Seattle, USA.
Jing ZhangDepartment of Pathology, University of Washington, Seattle, USA.
James B LeverenzCleveland Lou Ruvo Center for Brain Health at Cleveland Clinic, Cleveland, Ohio, USA.
Thomas J GrabowskiDepartment of Radiology, University of Washington, Seattle, USA.
University of Washington · USCleveland Clinic · USSeattle University · US

Funding

Udall Center Director's meeting poster awardP50NS062684 · NINDS · UNIVERSITY OF WASHINGTON · PI MONTINE, THOMAS J · 2009 to 2020
$18.3M
IBIC: Integrated Brain Imaging Center for the University of WashingtonRC4NS073008 · NINDS · UNIVERSITY OF WASHINGTON · PI GRABOWSKI, THOMAS J. · 2010 to 2010
$4.8M
NINDS NIH HHS 1RC4NS073008-01NINDS NIH HHS P50 NS062684NINDS NIH HHS P50NS062684NINDS NIH HHS RC4 NS073008
6 · The paper itself

Abstract

Cortical dysfunction in Parkinson's disease (PD) may be caused by disruption to ascending systems or by intrinsic cortical neuropathology. We introduce and conduct a joint analysis of metabolism and atrophy capable of identifying whether metabolic disruption occurs in mild PD without cortical atrophy, to determine the extent and spatial pattern of cortical involvement in mild PD. The design was observational, studying 23 cognitively normal participants with mild PD (mean Hoehn & Yahr stage 2) and 21 healthy controls. Cortical thickness (obtained from analysis of structural magnetic resonance imaging [MRI] with FreeSurfer) and cerebral perfusion measures (obtained from arterial spin labeling [ASL]) analyzed independently and then together in a joint multiple factorial analysis to identify spatial patterns of perfusion and cortical thickness. We identify a pattern of changes in perfusion and cortical thickness characterized by symmetric parietal cortical thinning and reduced precuneus perfusion, with relative preservation of thickness and perfusion in the anterior cingulate cortex (ACC), right prefrontal gyrus, and medial frontal gyrus. The expression of this pattern is correlated with motor system symptoms and speed of processing. A spatial pattern of joint parietal cortical thinning and disproportionate reduction in perfusion occurs in our nondemented PD sample. We found no PD-related components of reduced perfusion without cortical thinning. This suggests that PD affects the cortex itself, even when symptoms are relatively mild.

Indexed as

AgedAtrophyCerebral CortexFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedOrgan SizeParkinson DiseaseSeverity of Illness Indexcerebral perfusioncortical thicknessjoint analysismultiple factor analysisParkinson's disease

Identifiers

PMID25759166
PMCPMC4567553
OpenAlexW1556949940

What OpenQuestion holds

Textmetadata
LicenceTDM
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.