Evidence map›Paper›PMID 20886335›Full record

ReviewPsychopharmacology2011

Maternal separation as a model of brain-gut axis dysfunction.

Siobhain M O'Mahony, Niall P Hyland, Timothy G Dinan, John F Cryan

Abstract readReview
PubMed Publisher
In one paragraph

Review in Psychopharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 177 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
177citing papers in PubMed, 3 pooled it
35.0field-weighted citation impact, top 1% 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

177 citing papers in PubMed, 3 syntheses or guidelines pooled it, 402 citations in OpenAlex.

  1. Pooled it
  2. Enterochromaffin Cells: Sentinels to Gut Microbiota in Hyperalgesia?Frontiers in cellular and infection microbiology · 2021
    Pooled it
  3. Pooled it
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  12. Obesity and Depression: A Pathophysiotoxic Relationship.International journal of molecular sciences · 2025
    Review
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117 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 1 country.

Siobhain M O'MahonyAlimentary Pharmabiotic Centre, Biosciences Institute, University College Cork, Cork, Ireland. somahony@ucc.ie
Niall P Hyland
Timothy G Dinan
John F Cryan
University College Cork · IECork University Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleEarly life stress has been implicated in many psychiatric disorders ranging from depression to anxiety. Maternal separation in rodents is a well-studied model of early life stress. However, stress during this critical period also induces alterations in many systems throughout the body. Thus, a variety of other disorders that are associated with adverse early life events are often comorbid with psychiatric illnesses, suggesting a common underlying aetiology. Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder that is thought to involve a dysfunctional interaction between the brain and the gut. Essential aspects of the brain-gut axis include spinal pathways, the hypothalamic pituitary adrenal axis, the immune system, as well as the enteric microbiota. Accumulating evidence suggest that stress, especially in early life, is a predisposing factor to IBS.

objectiveThe objective of this review was to assess and compile the most relevant data on early life stress and alterations at all levels of the brain gut axis.

resultsIn this review, we describe the components of the brain-gut axis individually and how they are altered by maternal separation. The separated phenotype is characterised by alterations of the intestinal barrier function, altered balance in enteric microflora, exaggerated stress response and visceral hypersensitivity, which are all evident in IBS.

conclusionThus, maternally separated animals are an excellent model of brain-gut axis dysfunction for the study of disorders such as IBS and for the development of novel therapeutic interventions.

Indexed as

Disease Models, AnimalMaternal DeprivationAnimalsBrainGastrointestinal TractHumansIrritable Bowel SyndromeLife Change EventsRodentiaStress, Psychological

Identifiers

PMID20886335
OpenAlexW1995417833

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.