Evidence map›Paper›PMID 21556744›Full record

ArticleBrain imaging and behavior2011

A longitudinal study of motor performance and striatal [18F]fluorodopa uptake in Parkinson's disease.

Catherine L Gallagher, Sterling C Johnson, Barbara B Bendlin, Moo K Chung, James E Holden, Terrence R Oakes, Benjamin R Brooks, Richard A Konopacki, Selami Dogan, James H Abbs and 5 more

Abstract read
In one paragraph

Article in Brain imaging and behavior, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

6 citing papers in PubMed, 13 citations in OpenAlex.

  1. Experience of 6-l-[Nuclear medicine and molecular imaging · 2022
    Article
  2. Evaluation of Intraperitoneal [Molecular imaging · 2022
    Article
  3. Evaluation of exercise-induced modulation of glial activation and dopaminergic damage in a rat model of Parkinson's disease using [Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    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

15 authors at 5 institutions in 1 country.

Catherine L GallagherWilliam S. Middleton Memorial Veterans Hospital, Madison, WI 53792, USA. gallagher@neurology.wisc.edu
Sterling C Johnson
Barbara B Bendlin
Moo K Chung
James E Holden
Terrence R Oakes
Benjamin R Brooks
Richard A Konopacki
Selami Dogan
James H Abbs
Guofan Xu
Robert J Nickles
Robert W Pyzalski
Onofre T Dejesus
W Douglas Brown
University of Wisconsin–Madison · USAurora Sinai Medical Center · 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 DAVIDSON, RICHARD J · 1985 to 2015
$25.2M
DOPAMINERGIC PET AND MOTOR DYSFUNCTION IN PARKINSONISMR29NS031612 · NINDS · UNIVERSITY OF WISCONSIN MADISON · PI BROWN, W DOUGLAS · 1994 to 1998
–
NCRR NIH HHS 1UL1RR025011NCRR NIH HHS UL1 RR025011NICHD NIH HHS P30 HD003352NINDS NIH HHS R29 NS031612
6 · The paper itself

Abstract

Although [(18)F]fluoro-L: -dopa [FDOPA] positron emission tomography (PET) has been used as a surrogate outcome measure in Parkinson's disease therapeutic trials, this biomarker has not been proven to reflect clinical status longitudinally. We completed a retrospective analysis of relationships between computerized sampling of motor performance, FDOPA PET, and clinical outcome scales, repeated over 4 years, in 26 Parkinson's disease (PD) patients and 11 healthy controls. Mixed effects analyses showed that movement time and tongue strength best differentiated PD from control subjects. In the treated PD cohort, motor performance measures changed gradually in contrast to a steady decline in striatal FDOPA uptake. Prolonged reaction and movement time were related to lower caudate nucleus FDOPA uptake, and abnormalities in hand fine force control were related to mean striatal FDOPA uptake. These findings provide evidence that regional loss of nigrostriatal inputs to frontostriatal networks affects specific aspects of motor function.

Indexed as

RadiopharmaceuticalsAgedAgingAntiparkinson AgentsCarbidopaCaudate NucleusCorpus StriatumDihydroxyphenylalanineFemaleHand StrengthHumansIsometric ContractionLevodopaLongitudinal StudiesMaleMiddle Aged5-fluorodopaAntiparkinson AgentsCarbidopaDihydroxyphenylalanineLevodopaRadiopharmaceuticals

Identifiers

PMID21556744
PMCPMC3150388
OpenAlexW2074783570

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.