Evidence map›Paper›PMID 33763156›Full record

ArticleBehavioural neurology2021

BDNF Protein and BDNF mRNA Expression of the Medial Prefrontal Cortex, Amygdala, and Hippocampus during Situational Reminder in the PTSD Animal Model.

Shao-Han Chang, Ying Hao Yu, Alan He, Chen Yin Ou, Bai Chuang Shyu, Andrew Chih Wei Huang

Open access · goldAbstract read
In one paragraph

Article in Behavioural neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 25 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 3 institutions in 1 country.

Shao-Han ChangTaiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei, Taiwan.
Ying Hao YuDepartment of Psychology, Fo Guang University, Yilan County 26247, Taiwan.
Alan HeDepartment of Psychology, Fo Guang University, Yilan County 26247, Taiwan.
Chen Yin OuDepartment of Psychology, Fo Guang University, Yilan County 26247, Taiwan.
Bai Chuang ShyuInstitute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.ORCID https://orcid.org/0000-0001-5619-2281
Andrew Chih Wei HuangDepartment of Psychology, Fo Guang University, Yilan County 26247, Taiwan.ORCID https://orcid.org/0000-0001-9794-7302
Fo Guang University · TWInstitute of Biomedical Sciences, Academia Sinica · TWNational Ilan University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Whether BDNF protein and BDNF mRNA expression of the medial prefrontal cortex (mPFC; cingulated cortex area 1 (Cg1), prelimbic cortex (PrL), and infralimbic cortex (IL)), amygdala, and hippocampus (CA1, CA2, CA3, and dentate gyrus (DG)) was involved in fear of posttraumatic stress disorder (PTSD) during the situational reminder of traumatic memory remains uncertain. Footshock rats experienced an inescapable footshock (3 mA, 10 s), and later we have measured fear behavior for 2 min in the footshock environment on the situational reminder phase. In the final retrieval of situational reminder, BDNF protein and mRNA levels were measured. The results showed that higher BDNF expression occurred in the Cg1, PrL, and amygdala. Lower BDNF expression occurred in the IL, CA1, CA2, CA3, and DG. BDNF mRNA levels were higher in the mPFC and amygdala but lower in the hippocampus. The neural connection analysis showed that BDNF protein and BDNF mRNA exhibited weak connections among the mPFC, amygdala, and hippocampus during situational reminders. The present data did not support the previous viewpoint in neuroimaging research that the mPFC and hippocampus revealed hypoactivity and the amygdala exhibited hyperactivity for PTSD symptoms. These findings should be discussed with the previous evidence and provide clinical implications for PTSD.

Indexed as

Stress Disorders, Post-TraumaticAmygdalaAnimalsBrain-Derived Neurotrophic FactorDisease Models, AnimalHippocampusPrefrontal CortexRatsRNA, MessengerBdnf protein, ratBrain-Derived Neurotrophic FactorRNA, Messenger

Identifiers

PMID33763156
PMCPMC7964114
OpenAlexW3133780957

What OpenQuestion holds

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LicenceCC BY
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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.