Cited by 246Neuroscience and Neuropharmacology ResearchStress Responses and CortisolMemory and Neural Mechanisms

Stress Impairs GABAergic Network Function in the Hippocampus by Activating Nongenomic Glucocorticoid Receptors and Affecting the Integrity of the Parvalbumin-Expressing Neuronal Network

Open access
Hu, Wen, Zhang, Mingyue, Czéh, Boldizsár, Flügge, Gabriele, Zhang, Weiqi·2010·Neuropsychopharmacology

Abstract

Stress facilitates the development of psychiatric disorders in vulnerable individuals. It affects physiological functions of hippocampal excitatory neurons, but little is known about the impact of stress on the GABAergic network. Here, we studied the effects of stress and a synthetic glucocorticoid on hippocampal GABAergic neurotransmission and network function focusing on two perisomatic interneurons, the parvalbumin (PV)- and the cholecystokinin (CCK)-positive neurons. In acute hippocampal slices of rat, application of the potent glucocorticoid receptor (GR) agonist dexamethasone (DEX) caused a rapid increase in spontaneous inhibitory postsynaptic currents (sIPSCs) in CA1 pyramidal neurons. This effect was mediated by a nongenomic GR that evoked nitric oxide (NO) release from pyramidal neurons. Retrograde NO signaling caused the augmentation of GABA release from the interneurons and increased CCK release, which in turn further enhanced the activity of the PV-positive cells. Interestingly, chronic restraint stress also resulted in increased sIPSCs in CA1 pyramidal neurons that were Ca(2+)-dependent and an additional DEX application elicited no further effect. Concomitantly, chronic stress reduced the number of PV-immunoreactive cells and impaired rhythmic sIPSCs originating from the PV-positive neurons. In contrast, the CCK-positive neurons remained unaffected. We therefore propose that, in addition to the immediate effect, the sustained activation of nongenomic GRs during chronic stress injures the PV neuron network and results in an imbalance in perisomatic inhibition mediated by the PV and CCK interneurons. This stress-induced dysfunctional inhibitory network may in turn impair rhythmic oscillations and thus lead to cognitive deficits that are common in stress-related psychiatric disorders.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/npp.2010.31

Cites

38 of 38 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The alteration of parvalbumin-containing interneurons following enduring stress is mediated by GR activation.

    “Moreover, parvalbumin-containing interneurons are reported to be altered in several hippocampal subfields following enduring stress [89,101] , which is indicated to be mediated by GR activation [102] .”
  • Reduced GR mRNA expression may be central to impaired HPA inhibitory regulation.

    “Reduced levels of GR mRNA expression are seen in all hippocampal subfields [73,102] , which may be central to impaired HPA inhibitory regulation and mediated by epigenetic modifications [104] .”

    From The traumagenic neurodevelopmental model of psychosis revisited (2014) · cites this paper as [102]

    The Introduction discusses glucocorticoid receptors, and the section on chronic stress reports an indicator of HPA-axis hyperactivity. Neither passage addresses reduced GR mRNA expression or whether it impairs HPA inhibitory regulation. Searches for GR mRNA, hippocampal subfields, and HPA feedback found no passage establishing the claimed link; page numbers were not provided in our copy. (LLM, conf=0.73)

    Experimental — accuracy not yet measured
  • Reduced levels of GR mRNA expression are seen in all hippocampal subfields.

    “Reduced levels of GR mRNA expression are seen in all hippocampal subfields [73,102] , which may be central to impaired HPA inhibitory regulation and mediated by epigenetic modifications [104] .”

    From The traumagenic neurodevelopmental model of psychosis revisited (2014) · cites this paper as [102]

    The Results section on chronic stress reports fewer PV-immunoreactive neurons across hippocampal subregions, not reduced GR mRNA. The passages on glucocorticoid receptors concern their effects on GABAergic transmission. Searches for GR mRNA and reduced receptor expression found no passage addressing GR mRNA levels across hippocampal subfields; page numbers were not available in our copy. (LLM, conf=0.75)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [20]20. Review.

Cited by

Sorted by citations

Authors
Hu, W., Zhang, M., Czéh, B., Flügge, G., & Zhang, W.
Affiliations
  • German Primate Center (DE)
  • University of Münster (DE)
Corresponding author
  • Flügge, Gabriele
  • Zhang, Weiqi
Venue
Neuropsychopharmacology
Published
2010-03-31
Volume
35
Issue
8
Pages
1693-1707
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W1974044347
Cited by
246
References
38
Citations by year
2026: 8 · 2025: 11 · 2024: 10 · 2023: 20 · 2022: 21 · 2021: 16 · 2020: 15 · 2019: 13 · 2018: 16 · 2017: 15 · 2016: 19 · 2015: 20 · 2014: 14 · 2013: 16 · 2012: 14
FWCI
6.20
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • GRO (submittedVersion, cc-by)
  • Trinity's Access to Research Output (TARA) (Trinity College Dublin) (submittedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
stress, hippocampus, parvalbumin interneurons, cholecystokinin interneurons, dexamethasone, nitric oxide signaling, spontaneous inhibitory postsynaptic currents, CA1 pyramidal neurons, perisomatic inhibition, chronic restraint stress, rhythmic oscillations, cognitive impairment, stress-related psychiatric disorders
MeSH terms
Analysis of Variance, Animals, Calcium, Cholecystokinin, Dexamethasone, gamma-Aminobutyric Acid, Glucocorticoids, Guanosine Diphosphate, Male, Nerve Net, Nitric Oxide, Parvalbumins, Receptors, Glucocorticoid, Restraint, Physical, Sincalide, Stress, Psychological, Thionucleotides, Time Factors, Rats, Sprague-Dawley, Pyramidal Cells, Patch-Clamp Techniques, Rats, Quinazolinones, Inhibitory Postsynaptic Potentials, CA1 Region, Hippocampal, In Vitro Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review