Evidence map›Paper›PMID 26696852›Full record

ArticleFrontiers in behavioral neuroscience2015

Preliminary Evidence of Increased Hippocampal Myelin Content in Veterans with Posttraumatic Stress Disorder.

Linda L Chao, Duygu Tosun, Steven H Woodward, Daniela Kaufer, Thomas C Neylan

Abstract read
In one paragraph

Article in Frontiers in behavioral neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

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

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  10. White and Gray Matter Abnormality in Burning Mouth Syndrome Evaluated with Diffusion Tensor Imaging and Neurite Orientation Dispersion and Density Imaging.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2024
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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

5 authors.

Linda L ChaoCenter for Imaging of Neurodegenerative Diseases, Veterans Affairs Medical Center San Francisco, CA, USA ; Department of Radiology and Biomedical Imaging, University of California San Francisco, CA, USA ; Department of Psychiatry, University of California San Francisco, CA, USA.
Duygu TosunCenter for Imaging of Neurodegenerative Diseases, Veterans Affairs Medical Center San Francisco, CA, USA ; Department of Radiology and Biomedical Imaging, University of California San Francisco, CA, USA.
Steven H WoodwardDissemination and Training Division, National Center for PTSD, VA Palo Alto Health Care System CA, USA.
Daniela KauferHelen Wills Neuroscience Institute, University of California Berkeley, CA, USA ; Department of Integrative Biology, University of California Berkeley, CA, USA ; Canadian Institute for Advanced Research (CIFAR) Toronto, ON, Canada.
Thomas C NeylanDepartment of Psychiatry, University of California San Francisco, CA, USA ; Mental Health Services, Veterans Affairs Medical Center San Francisco, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent findings suggest the formation of myelin in the central nervous system by oligodendrocytes is a continuous process that can be modified with experience. For example, a recent study showed that immobilization stress increased oligodendrogensis in the dentate gyrus of adult rat hippocampus. Because changes in myelination represents an adaptive form of brain plasticity that has a greater reach in the adult brain than other forms of plasticity (e.g., neurogenesis), the objective of this "proof of concept" study was to examine whether there are differences in myelination in the hippocampi of humans with and without post-traumatic stress disorder (PTSD). We used the ratio of T1-weighted/T2-weighted magnetic resonance image (MRI) intensity to estimate the degree of hippocampal myelination in 19 male veterans with PTSD and 19 matched trauma-exposed male veterans without PTSD (mean age: 43 ± 12 years). We found that veterans with PTSD had significantly more hippocampal myelin than trauma-exposed controls. There was also found a positive correlation between estimates of hippocampal myelination and PTSD and depressive symptom severity. To our knowledge, this is the first study to examine hippocampal myelination in humans with PTSD. These results provide preliminary evidence for stress-induced hippocampal myelin formation as a potential mechanism underlying the brain abnormalities associated with vulnerability to stress.

Indexed as

hippocampusimagingmyelinplasticitypost-traumatic stress disorder

Identifiers

PMID26696852
PMCPMC4667092

What OpenQuestion 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 OpenQuestion graph.