Evidence map›Paper›PMID 31150555›Full record

ReviewSchizophrenia bulletin2019

The Fragile Brain: Stress Vulnerability, Negative Affect and GABAergic Neurocircuits in Psychosis.

Stephan F Taylor, Tyler B Grove, Vicki L Ellingrod, Ivy F Tso

Abstract readReview
In one paragraph

Review in Schizophrenia bulletin, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

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

  1. Pooled it
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  12. Catatonia.Nature reviews. Disease primers · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Stephan F TaylorDepartment of Psychiatry, University of Michigan, Rachel Upjohn Building, Ann Arbor, MI.
Tyler B GroveDepartment of Psychiatry, University of Michigan, Rachel Upjohn Building, Ann Arbor, MI.
Vicki L EllingrodCollege of Pharmacy, University of Michigan, Ann Arbor, MI.
Ivy F TsoDepartment of Psychiatry, University of Michigan, Rachel Upjohn Building, Ann Arbor, MI.

Funding

Neural mechanisms of eye gaze perception in schizophreniaK23MH108823 · NIMH · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI TSO, IVY FEI · 2016 to 2020
$894k
NIMH NIH HHS K23 MH108823
6 · The paper itself

Abstract

Persons with schizophrenia exhibit sensitivity to stress and negative affect (NA), both strongly correlated with poor functional outcome. This theoretical review suggests that NA reflects a "fragile brain," ie, vulnerable to stress, including events not experienced as stressful by healthy individuals. Based on postmortem evidence of altered gamma-aminobutyric acid (GABA) function in parvalbumin positive interneurons (PVI), animal models of PVI abnormalities and neuroimaging data with GABAergic challenge, it is suggested that GABAergic disruptions weaken cortical regions, which leads to stress vulnerability and excessive NA. Neurocircuits that respond to stressful and salient environmental stimuli, such as the hypothalamic-pituitary-adrenal axis and the amygdala, are highly dysregulated in schizophrenia, exhibiting hypo- and hyper-activity. PVI abnormalities in lateral prefrontal cortex and hippocampus have been hypothesized to affect cognitive function and positive symptoms, respectively; in the medial frontal cortex (dorsal anterior cingulate cortex and dorsal medial prefrontal cortex), these abnormalities may lead to vulnerability to stress, NA and dysregulation of stress responsive systems. Given that postmortem PVI disruptions have been identified in other conditions, such as bipolar disorder and autism, stress vulnerability may reflect a transdiagnostic dimension of psychopathology.

Indexed as

AffectSchizophrenic PsychologyAmygdalaAnimalsBrainDisease Models, Animalgamma-Aminobutyric AcidHippocampusHumansHypothalamo-Hypophyseal SystemInterneuronsNeural PathwaysParvalbuminsPituitary-Adrenal SystemPrefrontal CortexPsychotic Disordersgamma-Aminobutyric AcidParvalbuminsamygdalaanterior cingulate cortexbenzodiazepineemotionHPA axisschizophrenia

Identifiers

PMID31150555
PMCPMC6811817

What OpenQuestion holds

Textmetadata
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.