Evidence map›Paper›PMID 34333201›Full record

ArticleVision research2021

Dependence of visual and cognitive outcomes on animal holder configuration in a rodent model of blast overpressure exposure.

Rachael S Allen, Cara T Motz, Anayesha Singh, Andrew Feola, Lauren Hutson, Amber Douglass, Sriganesh Ramachandra Rao, Lara A Skelton, Lidia Cardelle, Katie L Bales and 6 more

Open access · greenAbstract read
In one paragraph

Article in Vision research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Review
  3. Blast injury: Impact to the cornea.Experimental eye research · 2024
    Review
  4. Article
  5. Article
  6. Article
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

16 authors at 5 institutions in 1 country.

Rachael S AllenCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States; Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA, United States.
Cara T MotzCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States; Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA, United States.
Anayesha SinghCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States.
Andrew FeolaCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States; Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA, United States; Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, United States.
Lauren HutsonCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States.
Amber DouglassCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States.
Sriganesh Ramachandra RaoResearch Service, VA Western NY Healthcare System, Buffalo, NY, United States; Ophthalmology, Biochemistry and Neuroscience Program, SUNY-University at Buffalo, Buffalo, NY, United States.
Lara A SkeltonResearch Service, VA Western NY Healthcare System, Buffalo, NY, United States; Ophthalmology, Biochemistry and Neuroscience Program, SUNY-University at Buffalo, Buffalo, NY, United States.
Lidia CardelleCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States.
Katie L BalesCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States; Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, United States.
Kyle CheslerCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States; Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA, United States.
Kaavya GudapatiCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States.
C Ross EthierDepartment of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA, United States; Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, United States.
Matthew M HarperIowa City VA Health Care System Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, United States; Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA, United States.
Steven J FlieslerResearch Service, VA Western NY Healthcare System, Buffalo, NY, United States; Ophthalmology, Biochemistry and Neuroscience Program, SUNY-University at Buffalo, Buffalo, NY, United States.
Machelle T PardueCenter for Visual and Neurocognitive Rehabilitation, Atlanta VA Healthcare System, Decatur, GA, United States; Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, GA, United States. Electronic address: machelle.pardue@bme.gatech.edu.
Georgia Institute of Technology · USAtlanta VA Health Care System · USVA Western New York Healthcare System · USEmory University · USUniversity of Iowa · US

Funding

P30-Core Grant for Vision Research Core CP30EY006360 · NEI · EMORY UNIVERSITY · PI GEISERT, ELDON E · 1986 to 2025
$15.3M
VIsion Science Training in AtlantaT32EY007092 · NEI · EMORY UNIVERSITY · PI Machelle T. Pardue · 1985 to 2026
$4.6M
Ocular Sequelae and Intervention in a Rat Model of Blast Overpressure PolytraumaI01BX002439 · VA · VA WESTERN NEW YORK HEALTHCARE SYSTEM · PI FLIESLER, STEVEN J., PARDUE, MACHELLE T. · 2015 to 2023
–
The Effect of Estrogen Deficiencies on Vision Loss in GlaucomaIK2RX002342 · VA · VETERANS HEALTH ADMINISTRATION · PI FEOLA, ANDREW J · 2018 to 2023
–
Neuroprotective strategies for retinopathy and cognition in diabetesIK2RX002928 · VA · VETERANS HEALTH ADMINISTRATION · PI ALLEN, RACHAEL STEWART · 2019 to 2023
–
RR&D Research Career Scientist Award ApplicationIK6RX003134 · VA · VETERANS HEALTH ADMINISTRATION · PI PARDUE, MACHELLE T. · 2019 to 2025
–
BLRD VA I01 BX002439NEI NIH HHS P30 EY006360NEI NIH HHS T32 EY007092RRD VA IK2 RX002342RRD VA IK2 RX002928RRD VA IK6 RX003134
6 · The paper itself

Abstract

Blast-induced traumatic brain injury is the signature injury of modern military conflicts. To more fully understand the effects of blast exposure, we placed rats in different holder configurations, exposed them to blast overpressure, and assessed the degree of eye and brain injury. Anesthetized Long-Evans rats received blast exposures directed at the head (63 kPa, 195 dB-SPL) in either an "open holder" (head and neck exposed; n = 7), or an "enclosed holder" (window for blast exposure to eye; n = 15) and were compared to non-blast exposed (control) rats (n = 22). Outcomes included optomotor response (OMR), electroretinography (ERG), and spectral domain optical coherence tomography (SD-OCT) at 2, 4, and 6 months post-blast, and cognitive function (Y-maze) at 3 months. Spatial frequency and contrast sensitivity were reduced in ipsilateral blast-exposed eyes in both holders (p < 0.01), while contralateral eyes showed greater deficits with the enclosed holder (p < 0.05). Thinner retinas (p < 0.001) and reduced ERG a- and b- wave amplitudes (p < 0.05) were observed for both ipsilateral and contralateral eyes with the enclosed, but not the open, holder. Rats in the open holder showed cognitive deficits compared to rats in the enclosed holder (p < 0.05). Overall, the animal holder configuration used in blast exposure studies can significantly affect outcomes. Enclosed holders may cause secondary damage to the contralateral eye by concussive injury or blast wave reflection off the holder wall. Open holders may damage the brain via rapid head movement (contrecoup injury). These results highlight additional factors to be considered when evaluating patients with blast exposure or developing models of blast injury.

Indexed as

ExplosionsRodentiaAnimalsCognitionDisease Models, AnimalHumansRatsRats, Long-EvansRetinaBlastEyeRetinaTBITraumatic brain injury

Identifiers

PMID34333201
PMCPMC8440444
OpenAlexW3191096557

What OpenQuestion holds

Textmetadata
LicenceTDM
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.