Evidence map›Paper›PMID 21449008›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2011

Rate of 6-[18F]fluorodopa uptake decline in striatal subregions in Parkinson's disease.

Catherine L Gallagher, Terrence R Oakes, Sterling C Johnson, Moo K Chung, James E Holden, Barbara B Bendlin, Donald G McLaren, Guofan Xu, Robert J Nickles, Robert Pyzalski and 2 more

Open access · greenAbstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Trial
  2. Accuracy of the Early Diagnosis of Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2023
    Article
  3. Article
  4. Article
  5. Comparison of Transcranial Sonography and [Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  6. The role of neuroimaging in Parkinson's disease.Journal of neurochemistry · 2021
    Review
  7. Physiological Whole-Brain Distribution of [Molecular imaging and biology · 2019
    Article
  8. The British journal of radiology · 2018
    Article
  9. [Neurotoxicology · 2018
    Article
  10. Review
  11. Article
  12. Early diagnosis and therapy of Parkinson's disease: can disease progression be curbed?Journal of neural transmission (Vienna, Austria : 1996) · 2013
    Review
  13. Article
  14. 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

12 authors at 4 institutions in 1 country.

Catherine L GallagherWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin 53792, USA. gallagher@neurology.wisc.edu
Terrence R Oakes
Sterling C Johnson
Moo K Chung
James E Holden
Barbara B Bendlin
Donald G McLaren
Guofan Xu
Robert J Nickles
Robert Pyzalski
Onofre DeJesus
W Douglas Brown
University of Wisconsin–Madison · USGeriatric Research Education and Clinical Center · USMedical College of Wisconsin · USWilliam S. Middleton Memorial Veterans Hospital · US

Funding

INSTITUTIONAL CTSA (UW-MADISON): CLINICAL TRIALSUL1RR025011 · NCRR · UNIVERSITY OF WISCONSIN-MADISON · PI DREZNER, MARC KENNETH · 2007 to 2011
$29.5M
WISCONSIN CENTER ON MENTAL RETARDATION: CORE SUPPORTP30HD003352 · NICHD · UNIVERSITY OF WISCONSIN-MADISON · PI SVAREN, JOHN P · 1985 to 2015
$25.2M
Biology of Aging and Age-Related Diseases Training GrantT32AG000213 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI Rozalyn M. Anderson, Sanjay Asthana · 1991 to 2026
$9.9M
DOPAMINERGIC PET AND MOTOR DYSFUNCTION IN PARKINSONISMR29NS031612 · NINDS · UNIVERSITY OF WISCONSIN MADISON · PI BROWN, W DOUGLAS · 1994 to 1998
–
NCRR NIH HHS UL1 RR025011NIA NIH HHS T32 AG000213NICHD NIH HHS P30 HD003352NINDS NIH HHS R29 NS031612
6 · The paper itself

Abstract

backgroundRate of decline in 6-L-[(18)F]fluorodopa (FDOPA) uptake within the striatum has been reported as showing regional differences in Parkinson's disease (PD).

methodsWe acquired longitudinal brain FDOPA positron emission tomography (PET) studies in 26 PD subjects and 11 controls over 4.5 years. We analyzed both spatially normalized voxel-wise maps of radiotracer influx (Kocc) and average Kocc values for six non-overlapping volumes of interest (VOIs) encompassing the striatum.

resultsThe voxel-wise analysis showed that in PD, FDOPA Kocc decline spanned the striatum but was greatest in the posterior putamen ipsilateral and anterior putamen contralateral to initial symptoms. The VOI approached showed that absolute rates of Kocc decline were significantly greater in PD than control subjects, but that the slope of decline did not differ between subregions. In PD, ratios of uptake between subregions did not change during the study with the exception of the ipsilateral putamen/caudate ratio. Decline rates were marginally greater during earlier time segments. Both male gender and advancing age were associated with lower baseline FDOPA uptake, but no difference in decline rates. VOI Kocc values were significantly correlated with disease duration, but only moderately correlated with clinical measures. DISCUSSION: We conclude that FDOPA uptake in subregions of the striatum is strongly correlated with disease duration and age, and declines approximately equally from symptom onset in PD. This implies that in idiopathic PD, relative preservation of uptake in the anterior striatum reflects a delay in pathologic involvement of nigrostriatal projections to this region.

Indexed as

Dopamine AgentsAdultAgedBrain MappingCorpus StriatumDihydroxyphenylalanineFemaleFluorine RadioisotopesHumansLinear ModelsLongitudinal StudiesMagnetic Resonance ImagingMaleMiddle AgedParkinson DiseaseTime FactorsDihydroxyphenylalanineDopamine AgentsFluorine Radioisotopesfluorodopa F 18

Identifiers

PMID21449008
PMCPMC3080432
OpenAlexW1966689420

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.