Evidence map›Paper›PMID 30833676›Full record

ArticleMolecular psychiatry2020

The gut microbiome regulates the increases in depressive-type behaviors and in inflammatory processes in the ventral hippocampus of stress vulnerable rats.

Jiah Pearson-Leary, Chunyu Zhao, Kyle Bittinger, Darrell Eacret, Sandra Luz, Abigail S Vigderman, Gabriel Dayanim, Seema Bhatnagar

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed, 1 pooled it
10.1field-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

111 citing papers in PubMed, 1 synthesis or guideline pooled it, 204 citations in OpenAlex.

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51 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

8 authors at 1 institution in 1 country.

Jiah Pearson-LearyDepartment of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Chunyu ZhaoDivision of Gastroenterology, Hepatology, and Nutrition, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0001-9589-2416
Kyle BittingerDivision of Gastroenterology, Hepatology, and Nutrition, Philadelphia, PA, USA.
Darrell EacretDepartment of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0003-2174-5100
Sandra LuzDepartment of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Abigail S VigdermanDepartment of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Gabriel DayanimDepartment of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Seema BhatnagarDepartment of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, USA. bhatnagars@email.chop.edu.
Children's Hospital of Philadelphia · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chronic exposure to stress is associated with increased incidence of depression, generalized anxiety, and PTSD. However, stress induces vulnerability to such disorders only in a sub-population of individuals, as others remain resilient. Inflammation has emerged as a putative mechanism for promoting stress vulnerability. Using a rodent model of social defeat, we have previously shown that rats with short-defeat latencies (SL/vulnerable rats) show increased anxiety- and depression-like behaviors, and these behaviors are mediated by inflammation in the ventral hippocampus. The other half of socially defeated rats show long-latencies to defeat (LL/resilient) and are similar to controls. Because gut microbiota are important activators of inflammatory substances, we assessed the role of the gut microbiome in mediating vulnerability to repeated social defeat stress. We analyzed the fecal microbiome of control, SL/vulnerable, and LL/resilient rats using shotgun metagenome sequencing and observed increased expression of immune-modulating microbiota, such as Clostridia, in SL/vulnerable rats. We then tested the importance of gut microbiota to the SL/vulnerable phenotype. In otherwise naive rats treated with microbiota from SL/vulnerable rats, there was higher microglial density and IL-1β expression in the vHPC, and higher depression-like behaviors relative to rats that received microbiota from LL/resilient rats, non-stressed control rats, or vehicle-treated rats. However, anxiety-like behavior during social interaction was not altered by transplant of the microbiome of SL/vulnerable rats into non-stressed rats. Taken together, the results suggest the gut microbiome contributes to the depression-like behavior and inflammatory processes in the vHPC of stress vulnerable individuals.

Indexed as

Gastrointestinal MicrobiomeAnimalsAnxietyBehavior, AnimalDepressionHippocampusRatsStress, Psychological

Identifiers

PMID30833676
OpenAlexW2918256091

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.