Evidence map›Paper›PMID 25757748›Full record

Trial reportJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2015

Striatal blood-brain barrier permeability in Parkinson's disease.

Madison T Gray, John M Woulfe

2 registry-linked trialsOpen access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 236 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
236citing papers in PubMed, 4 pooled it
12.4field-weighted citation impact, top 1% 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.

NCT02605161 completednot on this map

Imaging Blood Brain Imaging Dysfunction in Parkinson's Disease

TypeobservationalSponsorOttawa Hospital Research InstituteRan2015 to 2020Enrolled17ConditionsParkinson's Disease, Movement Disorders
NCT04506073 phase2completednot on this mapstarted 2020, after this paper: background citation

A Randomized, Double-blind, Placebo-controlled Trial of Allogeneic Bone Marrow-derived Mesenchymal Stem Cells as a Disease-modifying Therapy for Idiopathic Parkinson's Disease

TypeinterventionalSponsorThe University of Texas Health Science Center, HoustonRan2020 to 2023Enrolled45ConditionsParkinson's DiseaseArmsMesenchymal Stem Cells, Placebo
3 · Its place in the literature

Who cites it

236 citing papers in PubMed, 4 syntheses or guidelines pooled it, 400 citations in OpenAlex.

  1. Pooled it
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  3. GLP-1 receptor agonists for Parkinson's disease.The Cochrane database of systematic reviews · 2020
    Pooled it
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  19. Systemic elevation of gut derivedFrontiers in physiology · 2026
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176 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Madison T Gray1] Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada [2] Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
John M Woulfe1] Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada [2] Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada [3] Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada.
Ottawa Hospital Research Institute

Funding

Research Education ComponentP30AG019610 · NIA · SUN HEALTH RESEARCH INSTITUTE · PI GONZALEZ HERNANDEZ, GRACIELA · 2001 to 2020
$32.5M
National Brain and Tissue Resource for Parkinson's Disease and Related DisordersU24NS072026 · NINDS · BANNER SUN HEALTH RESEARCH INSTITUTE · PI BEACH, THOMAS G · 2011 to 2015
$7.8M
NIA NIH HHS P30 AG019610NINDS NIH HHS U24 NS072026
6 · The paper itself

Abstract

In vivo studies have shown that blood-brain barrier (BBB) dysfunction is involved in the course of Parkinson's disease (PD). However, these have lacked either anatomic definition or the ability to recognize minute changes in BBB integrity. Here, using histologic markers of serum protein, iron, and erythrocyte extravasation, we have shown significantly increased permeability of the BBB in the postcommissural putamen of PD patients. The dense innervation of the striatum by PD-affected regions allows for exploitation of this permeability for therapeutic goals. These results are also discussed in the context of the retrograde trans-synaptic hypothesis of PD spread.

Indexed as

Capillary PermeabilityAgedAged, 80 and overBiomarkersBlood-Brain BarrierBlood ProteinsErythrocytesFemaleHumansIronMaleMiddle AgedParkinson DiseaseBiomarkersBlood ProteinsIron

Identifiers

PMID25757748
PMCPMC4420870
OpenAlexW2079606458

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.