Cited by 149Stress Responses and CortisolNeuropeptides and Animal PhysiologyNeurotransmitter Receptor Influence on Behavior

The modulatory role of the lateral septum on neuroendocrine and behavioral stress responses

Open access
Singewald, Georg M, Rjabokon, Alesja, Singewald, Nicolas, Ebner, Karl·2011·Neuropsychopharmacology

Abstract

The lateral septum (LS) has been shown to have a key role in emotional processes and stress responses. However, the exact role of the LS on stress modulation is not clear, as previous lesion studies mostly used electrolytic lesions, thereby destroying the whole septal area, including medial components and/or fibers of passage. The aim of the present study was therefore, to investigate the effects of selective excitotoxic ablation of the LS on neuroendocrine and behavioral stress responses in rats. Bilateral ibotenic acid lesions of the LS increased hypothalamo-pituitary-adrenocortical (HPA) axis responses to forced swim stress indicated by enhanced plasma ACTH and corticosterone responses and higher stress-induced c-Fos-like immunoreactivity in the paraventricular hypothalamic nucleus. Moreover, LS-lesioned animals showed a more passive coping style in the forced swim test indicated by increased floating and reduced struggling/swimming behavior compared with sham-lesioned controls. Interestingly, intraseptal corticosteroid receptor blockade modulated behavioral stress coping but failed to change HPA axis stress responses. Further experiments aimed at elucidating underlying neurochemical mechanisms revealed that intraseptal administration of the selective 5-HT(1A) receptor antagonist WAY-100635 increased and prolonged stress-induced ACTH and corticosterone levels mimicking lesion effects, while the agonist 8-OH-DPAT suppressed HPA axis activity facilitating the inhibitory role of the LS. In addition, 8-OH-DPAT-injected animals showed increased active and decreased passive coping strategies during forced swimming suggesting antidepressant efficacy. Taken together, our data suggest that the LS promotes active stress coping behavior and is involved in a HPA-inhibitory mechanism that is at least in part mediated by septal 5-HT(1A) receptors and does not involve a glucocorticoid mediated feedback mechanism.

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.2010.213

Cites

85 of 85 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?

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

Cited by

Sorted by citations

Authors
Singewald, G. M., Rjabokon, A., Singewald, N., & Ebner, K.
Affiliations
Universität Innsbruck (AT)
Corresponding author
Ebner, Karl
Venue
Neuropsychopharmacology
Published
2010-12-15
Volume
36
Issue
4
Pages
793-804
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W1987515936
Cited by
149
References
84
Citations by year
2026: 5 · 2025: 7 · 2024: 9 · 2023: 4 · 2022: 17 · 2021: 9 · 2020: 10 · 2019: 12 · 2018: 9 · 2017: 11 · 2016: 8 · 2015: 9 · 2014: 16 · 2013: 6 · 2012: 10
FWCI
3.03
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • Trinity's Access to Research Output (TARA) (Trinity College Dublin) (submittedVersion)
Funders
Austrian Science Fund
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
lateral septum, stress response, hypothalamic-pituitary-adrenal axis, forced swim test, passive coping, active coping, ACTH, corticosterone, paraventricular nucleus, c-fos, 5-HT1A receptor, 8-OH-DPAT, WAY-100635, excitotoxic lesions, antidepressant efficacy, glucocorticoid feedback
MeSH terms
Adaptation, Psychological, Adrenocorticotropic Hormone, Animals, Corticosterone, Male, Neurosecretory Systems, Stress, Psychological, Rats, Sprague-Dawley, Septum of Brain, Rats

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