Evidence map›Paper›PMID 32669030›Full record

ArticleMultiple sclerosis (Houndmills, Basingstoke, England)2021

Synaptic and complement markers in extracellular vesicles in multiple sclerosis.

Pavan Bhargava, Carlos Nogueras-Ortiz, Sol Kim, Francheska Delgado-Peraza, Peter A Calabresi, Dimitrios Kapogiannis

Open access · greenAbstract read
In one paragraph

Article in Multiple sclerosis (Houndmills, Basingstoke, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 6% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 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

6 authors at 2 institutions in 1 country.

Pavan BhargavaDepartment of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.ORCID 0000-0002-7947-9418
Carlos Nogueras-OrtizLaboratory of Clinical Investigation, National Institutes of Aging, Baltimore, MD, USA.
Sol KimDepartment of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Francheska Delgado-PerazaLaboratory of Clinical Investigation, National Institutes of Aging, Baltimore, MD, USA.
Peter A CalabresiDepartment of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Dimitrios KapogiannisLaboratory of Clinical Investigation, National Institutes of Aging, Baltimore, MD, USA/Biomedical Research Center, National Institute on Aging, National Institute of Health, Baltimore, MD, USA/ Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Johns Hopkins University · USNational Institute on Aging · US

Funding

Studies in Dementia and Neurodegenerative DiseasesZIAAG000975 · NIA · NATIONAL INSTITUTE ON AGING · PI KAPOGIANNIS, DIMITRIOS · 2009 to 2025
$31.5M
Intramural NIH HHS Z99 AG999999Intramural NIH HHS ZIA AG000975
6 · The paper itself

Abstract

backgroundSynaptic loss is a feature of multiple sclerosis pathology that can be seen even in normal-appearing gray matter. Opsonization of synapses with complement components may underlie pathologic synapse loss.

objectiveWe sought to determine whether circulating neuronal-enriched and astrocytic-enriched extracellular vesicles (NEVs and AEVs) provide biomarkers reflecting complement-mediated synaptic loss in multiple sclerosis.

methodsFrom plasma of 61 people with multiple sclerosis (46 relapsing-remitting multiple sclerosis (RRMS) and 15 progressive MS) and 31 healthy controls, we immunocaptured L1CAM + NEVs and GLAST + AEVs. We measured pre- and post-synaptic proteins synaptopodin and synaptophysin in NEVs and complement components (C1q, C3, C3b/iC3b, C4, C5, C5a, C9, Factor B, and Factor H) in AEVs, total circulating EVs, and neat plasma.

resultsWe found lower levels of NEV synaptopodin and synaptophysin in MS compared to controls (

conclusionCirculating EVs could identify synaptic loss in MS and suggest a link between astrocytic complement production and synaptic loss.

Indexed as

Extracellular VesiclesMultiple SclerosisBiomarkersComplement ActivationComplement System ProteinsHumansBiomarkersComplement System ProteinsastrocytesbiomarkerscomplementExtracellular vesiclesmultiple sclerosissynaptic dysfunction

Identifiers

PMID32669030
PMCPMC7744427
OpenAlexW3036838913

What OpenQuestion holds

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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.