Evidence mapPaperPMID 41319103Full record

ArticleBrain pathology (Zurich, Switzerland)2026

Vessel-associated microglia are differentially activated and distributed in relation to systemic infection and Alzheimer's disease.

Oliver Milner, Robert A Fisher, Daniel J Asby, Stephen Cross, Delphine Boche, J Scott Miners

Abstract read
In one paragraph

Article in Brain pathology (Zurich, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Oliver MilnerCerebrovascular and Dementia Research Group, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.ORCID https://orcid.org/0000-0002-4625-1484
Robert A FisherCerebrovascular and Dementia Research Group, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.ORCID https://orcid.org/0000-0002-0387-290X
Daniel J AsbyCerebrovascular and Dementia Research Group, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.ORCID https://orcid.org/0000-0002-1219-8347
Stephen CrossWolfson Bioimaging Facility, Faculty of Health and Life Sciences, University of Bristol, Bristol, UK.ORCID https://orcid.org/0000-0003-3565-0479
Delphine BocheClinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK.ORCID https://orcid.org/0000-0002-5884-130X
J Scott MinersCerebrovascular and Dementia Research Group, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.ORCID https://orcid.org/0000-0001-8594-1640

Funding

Alzheimer's Research UK ARUK-SRF-2019A-001
6 · The paper itself

Abstract

Vessel-associated microglia (VAM) are an integral part of the neurovascular unit and have recently been implicated in the pathophysiology of cerebrovascular injury and blood-brain barrier (BBB) leakiness in Alzheimer's disease (AD). In this neuropathological study, we explored the hypothesis that the distribution and activation of VAM are altered in AD in the presence of systemic infection, associated with cerebrovascular dysfunction. We studied VAM density in the temporal cortex and underlying white matter from AD and age-matched controls with and without terminal systemic infection (SI) (n = 15 per group). The area of VAM labelled with microglial markers (Iba1, HLA-DR, CD68) was quantified in proximity to CD31-labelled microvessels within three predefined regions: contact VAM, proximity <15 μm, and parenchymal >15 μm. The relationships between VAM and previously measured brain cytokine levels and biochemical markers of cerebral perfusion (MAG:PLP1, endothelin-1) and BBB leakiness (VEGF-A and fibrinogen), were explored in a subset of cases. Compared to controls, the relative area of Iba1+ VAM was higher in SI and in AD. The area of HLA-DR+ VAM was higher in AD only. The area of Iba1+ VAM that expressed CD68, a marker of phagocytosis, was higher in both AD and AD + SI. Iba1+ and HLA-DR+ VAM correlated inversely with anti-inflammatory cytokines (IL-10, IL-23) in AD and positively with pro-inflammatory cytokines (IL-6, IL-23, GM-CSF, IL-17) in AD + SI. Iba1+ VAM density correlated positively with endothelin-1, VEGF-A and fibrinogen in controls. HLA-DR+ VAM density correlated positively with Aβ

Indexed as

Alzheimer DiseaseMicrogliaAgedAged, 80 and overAmyloid beta-PeptidesAntigens, CDBlood-Brain BarrierBrainCalcium-Binding ProteinsCytokinesFemaleHLA-DR AntigensHumansMaleMicrofilament ProteinsWhite MatterAIF1 protein, humanAmyloid beta-PeptidesAntigens, CDCalcium-Binding ProteinsCytokinesHLA-DR AntigensMicrofilament Proteinsblood–brain barriermicroglianeuroinflammationneurovascularsystemic infectionvascular‐associated microglia

Identifiers

PMID41319103
PMCPMC13051992

What Socratic holds

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Registered trials

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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 Socratic graph.