Evidence map›Paper›PMID 30923084›Full record

ArticleAJNR. American journal of neuroradiology2019

Behavioral and Structural Effects of Single and Repeat Closed-Head Injury.

Y-C J Kao, Y W Lui, C-F Lu, H-L Chen, B-Y Hsieh, C-Y Chen

Abstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–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

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Persistent dysmorphology and dysfunction of the brain microvasculature following repeated trauma.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
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  4. Article
  5. Review
  6. Article
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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.

Y-C J KaoFrom the Neuroscience Research Center (Y.-C.J.K., C.-Y.C.).ORCID 0000-0001-7416-759X
Y W LuiDepartment of Radiology (Y.W.L.), NYU School of Medicine/NYU Langone Health, New York, New York.ORCID 0000-0002-9984-9164
C-F LuDepartment of Biomedical Imaging and Radiological Sciences (C.-F.L.), National Yang-Ming University, Taipei, Taiwan.ORCID 0000-0003-1344-9950
H-L ChenDepartments of Medical Research (H.-L.C.).ORCID 0000-0002-5313-3072
B-Y HsiehDepartment of Biomedical Imaging and Radiological Science (B.-Y.H.), China Medical University, Taichung, Taiwan.ORCID 0000-0002-9379-4211
C-Y ChenFrom the Neuroscience Research Center (Y.-C.J.K., C.-Y.C.) sandy0932@gmail.com.ORCID 0000-0003-0428-4373

Funding

TR&D 4: Revealing Microstructure: Biophysical modeling and validation for discovery and clinical careP41EB017183 · NIBIB · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI Christopher M Collins · 2014 to 2026
$19.3M
QUANTITATIVE MRI AND 1H-MRS IN TRAUMATIC BRAIN INJURYR01NS039135 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI LUI, YVONNE W · 2000 to 2017
$10.1M
Pattern Classification Using Magnetic Resonance Imaging in Traumatic Brain InjuryR21NS090349 · NINDS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI LUI, YVONNE W, WANG, YAO · 2016 to 2017
$394k
NIBIB NIH HHS P41 EB017183NINDS NIH HHS R01 NS039135NINDS NIH HHS R21 NS090349
6 · The paper itself

Abstract

background and purposeThe effects of multiple head impacts, even without detectable primary injury, on subsequent behavioral impairment and structural abnormality is yet well explored. Our aim was to uncover the dynamic changes and long-term effects of single and repetitive head injury without focal contusion on tissue microstructure and macrostructure. MATERIALS AND

methodsWe introduced a repetitive closed-head injury rodent model (

resultsThere was no gross morphologic evidence for head injury such as skull fracture, contusion, or hemorrhage on micro-CT and MR imaging. A significant decrease of white matter fractional anisotropy from day 21 on and an increase of gray matter fractional anisotropy from day 35 on were observed. Smaller mean cortical volume in the double-injury group was shown at day 50 compared with sham and single injury (

conclusionsThere are measurable and dynamic changes in microstructure, cortical volume, behavior, and histopathology after both single and double injury, with more severe effects seen after double injury. This work bridges cross-sectional evidence from human subject and pathologic studies using animal models with a multi-time point, longitudinal research paradigm.

Indexed as

AnimalsBrain ConcussionCross-Sectional StudiesDiffusion Tensor ImagingDisease Models, AnimalGait Disorders, NeurologicGray MatterHead Injuries, ClosedLongitudinal StudiesMaleRatsRats, Sprague-DawleySensation DisordersWhite Matter

Identifiers

PMID30923084
PMCPMC6945510

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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 OpenQuestion graph.