Evidence map›Paper›PMID 25521178›Full record

ReviewBrain pathology (Zurich, Switzerland)2015

White matter changes in dementia: role of impaired drainage of interstitial fluid.

Roy O Weller, Cheryl A Hawkes, Raj N Kalaria, David J Werring, Roxana O Carare

Open access · hybridAbstract readReview
In one paragraph

Review in Brain pathology (Zurich, Switzerland), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 116 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
116citing papers in PubMed, 2 pooled it
9.8field-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.

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

116 citing papers in PubMed, 2 syntheses or guidelines pooled it, 185 citations in OpenAlex.

  1. Pooled it
  2. Enlarged Perivascular Spaces and Dementia: A Systematic Review.Journal of Alzheimer's disease : JAD · 2019
    Pooled it
  3. Enlarged perivascular spaces and florbetapir uptake in patients with intracerebral hemorrhage.European journal of nuclear medicine and molecular imaging · 2019
    Trial
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  11. Review
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  15. Review
  16. White matter hyperintensity spatial patterns: Risk factors and clinical correlates.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  17. Review
  18. Article
  19. Review
  20. Article

56 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

5 authors at 3 institutions in 1 country.

Roy O WellerClinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.
Cheryl A Hawkes
Raj N Kalaria
David J Werring
Roxana O Carare
University of Southampton · GBNewcastle Hospitals - Campus for Ageing and Vitality · GBUniversity College London · GB

Funding

Medical Research Council G0400074Medical Research Council G0500247Medical Research Council G0502157Medical Research Council G0900652Medical Research Council G1100540Medical Research Council MR/L016451/1The Dunhill Medical Trust R277/0213
6 · The paper itself

Abstract

White matter abnormalities on magnetic resonance imaging (MRI) are associated with dementia and include white matter hyperintensities (WMH; also termed leukoaraiosis) and visible perivascular spaces (PVS). We review the potential role of impaired drainage of interstitial fluid in the pathogenesis of WMH and PVS. Whereas the volume of extracellular space in the grey matter is tightly controlled, fluid accumulates and expands the extracellular spaces of the white matter in acute hydrocephalus, vasogenic edema and WMH. Although there are no conventional lymphatic vessels in the brain, there is very effective lymphatic drainage for fluid and solutes along restricted pathways in the basement membranes of cerebral capillaries and arteries in young individuals. Lymphatic drainage of the brain is impaired with age and in association with apolipoprotein E ε4, risk factors for Alzheimer's disease and cerebral amyloid angiopathy (CAA). Deposition of proteins in the lymphatic drainage pathways in the walls of cerebral arteries with age is recognized as protein elimination failure angiopathy (PEFA), as in CAA and cerebral autosomal dominant arteriopathy and leukoencephalopathy (CADASIL). Facilitating perivascular lymphatic drainage from the aging brain may play a significant role in the prevention of CAA, WMH and Alzheimer's disease and may enhance the efficacy of immunotherapy for Alzheimer's disease.

Indexed as

AgingAnimalsBrainDementiaExtracellular FluidHumansLeukoaraiosisWhite MatterAlzheimer's diseaseamyloid-βCADASILcerebral amyloid angiopathyperivascular drainageperivascular spacesprotein elimination failure angiopathy (PEFA)white matter hyperintensities

Identifiers

PMID25521178
PMCPMC8028907
OpenAlexW1701739348

What OpenQuestion holds

Textmetadata
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.