Evidence map›Paper›PMID 29952102›Full record

ArticleHuman brain mapping2018

Longitudinal white matter microstructural change in Parkinson's disease.

Vincent Pozorski, Jennifer M Oh, Nagesh Adluru, Andrew P Merluzzi, Frances Theisen, Ozioma Okonkwo, Amy Barzgari, Stephanie Krislov, Jitka Sojkova, Barbara B Bendlin and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Human brain mapping, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
4.3field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.

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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

13 authors at 2 institutions in 1 country.

Vincent PozorskiWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Jennifer M OhWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Nagesh AdluruWaisman Laboratory for Brain Imaging and Behavior, Waisman Center, University of Wisconsin-Madison, Madison, Wisconsin.
Andrew P MerluzziWisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
Frances TheisenWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Ozioma OkonkwoWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Amy BarzgariWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Stephanie KrislovWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Jitka SojkovaDepartment of Neurology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
Barbara B BendlinWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Sterling C JohnsonWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Andrew L AlexanderWaisman Laboratory for Brain Imaging and Behavior, Waisman Center, University of Wisconsin-Madison, Madison, Wisconsin.
Catherine L GallagherWilliam S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
University of Wisconsin–Madison · USWilliam S. Middleton Memorial Veterans Hospital · US

Funding

Wisconsin Alzheimer's Disease Research CenterP50AG033514 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI ASTHANA, SANJAY · 2009 to 2018
$16.2M
White matter degeneration: biomarkers in preclinical Alzheimer's DiseaseR56AG037639 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI BENDLIN, BARBARA BRIGITTA · 2017 to 2017
$759k
Longitudinal MRI in Preclinical Parkinson DiseaseI01CX000555 · VA · WM S. MIDDLETON MEMORIAL VETERANS HOSP · PI GALLAGHER, CATHERINE L. · 2012 to 2023
–
CSRD VA I01 CX000555NIA NIH HHS P50 AG033514NIA NIH HHS R56 AG037639
6 · The paper itself

Abstract

Postmortem studies of Parkinson's disease (PD) suggest that Lewy body pathology accumulates in a predictable topographical sequence, beginning in the olfactory bulb, followed by caudal brainstem, substantia nigra, limbic cortex, and neocortex. Diffusion-weighted imaging (DWI) is sensitive, if not specific, to early disease-related white matter (WM) change in a variety of traumatic and degenerative brain diseases. Although numerous cross-sectional studies have reported DWI differences in cerebral WM in PD, only a few longitudinal studies have investigated whether DWI change exceeds that of normal aging or coincides with regional Lewy body accumulation. This study mapped regional differences in the rate of DWI-based microstructural change between 29 PD patients and 43 age-matched controls over 18 months. Iterative within- and between-subject tensor-based registration was completed on motion- and eddy current-corrected DWI images, then baseline versus follow-up difference maps of fractional anisotropy, mean, radial, and axial diffusivity were analyzed in the Biological Parametric Mapping toolbox for MATLAB. This analysis showed that PD patients had a greater decline in WM integrity in the rostral brainstem, caudal subcortical WM, and cerebellar peduncles, compared with controls. In addition, patients with unilateral clinical signs at baseline experienced a greater rate of WM change over the 18-month study than patients with bilateral signs. These findings suggest that rate of WM microstructural change in PD exceeds that of normal aging and is maximal during early stage disease. In addition, the neuroanatomic locations (rostral brainstem and subcortical WM) of accelerated WM change fit with current theories of topographic disease progression.

Indexed as

Disease ProgressionAgedAgingDiffusion Magnetic Resonance ImagingFemaleHumansLongitudinal StudiesMaleMiddle AgedParkinson DiseaseSeverity of Illness IndexWhite Matterageddiffusion magnetic resonance imaging/methods*femalehumansmalemyelinated/pathology*nerve fibersParkinson's disease/pathology*severity of illness index

Identifiers

PMID29952102
PMCPMC6128734
OpenAlexW2811445369

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.