Evidence map›Paper›PMID 28853438›Full record

ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2018

Periaqueductal Gray Glutamatergic Transmission Governs Chronic Stress-Induced Depression.

Yu-Cheng Ho, Tzer-Bin Lin, Ming-Chun Hsieh, Cheng-Yuan Lai, Dylan Chou, Yat-Pang Chau, Gin-Den Chen, Hsien-Yu Peng

Open access · bronzeAbstract read
In one paragraph

Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
1.8field-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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 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

8 authors at 4 institutions in 1 country.

Yu-Cheng HoDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Tzer-Bin LinDepartment of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
Ming-Chun HsiehDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Cheng-Yuan LaiDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Dylan ChouDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Yat-Pang ChauDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Gin-Den ChenDepartment of Obstetrics and Gynecology, Chung-Shan Medical University Hospital, Chung-Shan Medical University, Taichung, Taiwan.
Hsien-Yu PengDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Mackay Medical College · TWTaipei Medical University · TWChung Shan Medical University Hospital · TWNational Chung Hsing University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mechanisms underlying chronic stress-induced dysfunction of glutamatergic transmission that contribute to helplessness-associated depressive disorder are unknown. We investigated the relationship of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors and stress, and the neuroplastic changes of stress-induced depression-like behavior in the ventrolateral periaqueductal gray (vlPAG). We conducted whole-cell patch-clamp electrophysiological recordings in the vlPAG neurons. Depression-like behavior was assayed using tail suspension test and sucrose preference test. Surface and cytosolic glutamate receptor 1 (GluR1) AMPA receptor expression was analyzed using western blotting. Phosphorylated GluR1 expression was quantified using western blotting and immunohistochemical analysis. Unpredictable inescapable foot shock stress caused reduction in glutamatergic transmission originating from both presynaptic and postsynaptic loci in the vlPAG that was associated with behavioral despair and anhedonia in chronic stress-induced depression. Pharmacological inhibition of GluR1 function in the vlPAG caused depression-like behavior. Diminished glutamatergic transmission was due to reduced glutamate release presynaptically and enhanced GluR1-endocytosis from the cell surface postsynaptically. Chronic stress-induced neuroplastic changes and maladaptive behavior were reversed and mimicked by administration of glucocorticoid receptor (GR) antagonist and agonist, respectively. However, chronic stress did not affect γ-aminobutyric acid (GABA)-mediated inhibitory synaptic transmission in the vlPAG. These results demonstrate that depression-like behavior is associated with remarkable reduction in glutamatergic, but not GABAergic, transmission in the vlPAG. These neuroplastic changes and maladaptive behavior are attributed to GR-dependent mechanisms. As reduced GluR1-associated responses in the vlPAG contribute to chronic stress-induced neuroplastic changes, this cellular mechanism may be a critical component in the pathogenesis of stress-associated neuropsychiatric disorders.

Indexed as

AnhedoniaAnimalsBehavior, AnimalDepressionDisease Models, Animalgamma-Aminobutyric AcidGlutamic AcidMalePatch-Clamp TechniquesPeriaqueductal GrayRatsRats, Sprague-DawleyReceptors, AMPAReceptors, GlucocorticoidStress, PsychologicalSynaptic Transmissiongamma-Aminobutyric AcidGlutamic AcidReceptors, AMPAReceptors, Glucocorticoid

Identifiers

PMID28853438
PMCPMC5729570
OpenAlexW2750775700

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.