Evidence map›Paper›PMID 33629462›Full record

ArticleBrain pathology (Zurich, Switzerland)2021

Distinct and dementia-related synaptopathy in the hippocampus after military blast exposures.

Michael F Almeida, Thuvan Piehler, Kelly E Carstens, Meilan Zhao, Mahsa Samadi, Serena M Dudek, Christopher J Norton, Catherine M Parisian, Karen L G Farizatto, Ben A Bahr

Open access · goldAbstract read
In one paragraph

Article in Brain pathology (Zurich, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

10 citing papers in PubMed, 14 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

10 authors at 3 institutions in 1 country.

Michael F AlmeidaBiotechnology Research and Training Center, University of North Carolina-Pembroke, Pembroke, NC, USA.
Thuvan PiehlerU.S. Army Research Laboratory, Aberdeen Proving Ground, MD, USA.
Kelly E CarstensNeurobiology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
Meilan ZhaoNeurobiology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
Mahsa SamadiNeurobiology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
Serena M DudekNeurobiology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
Christopher J NortonBiotechnology Research and Training Center, University of North Carolina-Pembroke, Pembroke, NC, USA.
Catherine M ParisianBiotechnology Research and Training Center, University of North Carolina-Pembroke, Pembroke, NC, USA.
Karen L G FarizattoBiotechnology Research and Training Center, University of North Carolina-Pembroke, Pembroke, NC, USA.
Ben A BahrBiotechnology Research and Training Center, University of North Carolina-Pembroke, Pembroke, NC, USA.ORCID 0000-0002-8400-4599
University of North Carolina at Pembroke · USTriangle · USDEVCOM Army Research Laboratory · US

Funding

Mechanisms Of Synaptic Plasticity In The Adult And Developing Nervous SystemZIAES100221 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI DUDEK, SERENA M · 2009 to 2025
$47.4M
UNCP RISE Option 2R25GM077634 · NIGMS · UNIVERSITY OF NORTH CAROLINA AT PEMBROKE · PI SMITH, RACHEL B. · 2006 to 2021
$4.3M
Synaptic Plasticity In The Adult And Developing NSZ01ES100221 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI DUDEK, SERENA M · 2002 to 2008
$3.5M
Intramural NIH HHS Z01 ES100221NIGMS NIH HHS R25 GM077634
6 · The paper itself

Abstract

Explosive shockwaves, and other types of blast exposures, are linked to injuries commonly associated with military service and to an increased risk for the onset of dementia. Neurological complications following a blast injury, including depression, anxiety, and memory problems, often persist even when brain damage is undetectable. Here, hippocampal explants were exposed to the explosive 1,3,5-trinitro-1,3,5-triazinane (RDX) to identify indicators of blast-induced changes within important neuronal circuitries. Highly controlled detonations of small, 1.7-gram RDX spherical charges reduced synaptic markers known to be downregulated in cognitive disorders, but without causing overt neuronal loss or astroglial responses. In the absence of neuromorphological alterations, levels of synaptophysin, GluA1, and synapsin IIb were significantly diminished within 24 hr, and these synaptic components exhibited progressive reductions following blast exposure as compared to their stable maintenance in control explants. In contrast, labeling of the synapsin IIa isoform remained unaltered, while neuropilar staining of other markers decreased, including synapsin IIb and neural cell adhesion molecule (NCAM) isoforms, along with evidence of NCAM proteolytic breakdown. NCAM

Indexed as

AstrocytesBlast InjuriesBrain InjuriesCognition DisordersDementiaHippocampusHumansMilitary PersonnelNeural Cell Adhesion MoleculesNeuronsNeural Cell Adhesion MoleculesAlzheimer-type synaptopathogenesismild traumatic brain injuryNBDPNCAM breakdown productsneurotraumasynaptic decline

Identifiers

PMID33629462
PMCPMC8412116
OpenAlexW3129368824

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.