Evidence map›Paper›PMID 16638791›Full record

ArticleGut2006

Probiotics prevent bacterial translocation and improve intestinal barrier function in rats following chronic psychological stress.

M Zareie, K Johnson-Henry, J Jury, P-C Yang, B-Y Ngan, D M McKay, J D Soderholm, M H Perdue, P M Sherman

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 158 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
158citing papers in PubMed, 2 pooled it
10.2field-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

158 citing papers in PubMed, 2 syntheses or guidelines pooled it, 429 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Trial
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  7. Article
  8. Review
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  10. Gut Microbiota-Driven Pathways Linking Chronic Stress to Tumor Progression.International journal of biological sciences · 2026
    Review
  11. Dual-Strain Psychobiotics Combining LiveFoods (Basel, Switzerland) · 2025
    Article
  12. Article
  13. Supplementation of the probioticAnimal nutrition (Zhongguo xu mu shou yi xue hui) · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
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98 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

9 authors at 4 institutions in 1 country.

M ZareieDivision of Gastroenterology and Nutrition, Room 8409, Hospital for Sick Children, 555 University Ave, Toronto, Ontario, Canada.
K Johnson-Henry
J Jury
P-C Yang
B-Y Ngan
D M McKay
J D Soderholm
M H Perdue
P M Sherman
McMaster University · CAUniversity of Toronto · CAHospital for Sick Children · CASickKids Foundation · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsChronic psychological stress, including water avoidance stress (WAS), induces intestinal mucosal barrier dysfunction and impairs mucosal defences against luminal bacteria. The aim of this study was to determine the ability of a defined probiotic regimen to prevent WAS induced intestinal pathophysiology.

methodsMale rats were subjected to either WAS or sham stress for one hour per day for 10 consecutive days. Additional animals received seven days of Lactobacillus helveticus and L rhamnosus in the drinking water prior to stress and remained on these probiotics for the duration of the study. Rats were then sacrificed, intestinal segments assessed in Ussing chambers, and mesenteric lymph nodes cultured to determine bacterial translocation.

resultsAll animals remained healthy for the duration of the study. Chronic WAS induced excess ion secretion (elevated baseline short circuit current) and barrier dysfunction (increased conductance) in both the ileum and colon, associated with increased bacterial adhesion and penetration into surface epithelial cells. Approximately 70% of rats subjected to WAS had bacterial translocation to mesenteric lymph nodes while there was no bacterial translocation in controls. Probiotic pretreatment alone had no effect on intestinal barrier function. However, WAS induced increased ileal short circuit current was reduced with probiotics whereas there was no impact on altered conductance. Pretreatment of animals with probiotics also completely abrogated WAS induced bacterial adhesion and prevented translocation of bacteria to mesenteric lymph nodes.

conclusionThese findings indicate that probiotics can prevent chronic stress induced intestinal abnormalities and, thereby, exert beneficial effects in the intestinal tract.

Indexed as

AnimalsBacterial AdhesionBacterial TranslocationChronic DiseaseEnterocytesIntestinal AbsorptionIntestinal MucosaLactobacillusLymph NodesMaleMesenteryMicroscopy, ElectronPermeabilityProbioticsRatsRats, Inbred BN

Identifiers

PMID16638791
PMCPMC1860130
OpenAlexW2154745198

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.