Evidence map›Paper›PMID 27583194›Full record

ArticleTissue barriers

Intestinal barrier analysis by assessment of mucins, tight junctions, and α-defensins in healthy C57BL/6J and BALB/cJ mice.

Valentina Volynets, Andreas Rings, Gyöngyi Bárdos, Maureen J Ostaff, Jan Wehkamp, Stephan C Bischoff

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Article in Tissue barriers. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

29 citing papers in PubMed, 48 citations in OpenAlex.

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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

6 authors at 3 institutions in 2 countries.

Valentina VolynetsDepartment of Nutritional Medicine, University of Hohenheim , Stuttgart, Germany.
Andreas RingsDepartment of Nutritional Medicine, University of Hohenheim , Stuttgart, Germany.
Gyöngyi BárdosDepartment of Nutritional Medicine, University of Hohenheim , Stuttgart, Germany.
Maureen J OstaffUniversity of Colorado, Anschutz Medical Campus , Denver, CO, USA.
Jan WehkampDepartment of Internal Medicine, University of Tübingen , Tübingen, Germany.
Stephan C BischoffDepartment of Nutritional Medicine, University of Hohenheim , Stuttgart, Germany.
University of Hohenheim · DEUniversity of Colorado Anschutz Medical Campus · USUniversity of Tübingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The intestinal barrier is gaining increasing attention because it is related to intestinal homeostasis and disease. Different parameters have been used in the past to assess intestinal barrier functions in experimental studies; however most of them are poorly defined in healthy mice. Here, we compared a number of barrier markers in healthy mice, established normal values and correlations. In 48 mice (24 C57BL/6J, 24 BALB/cJ background), we measured mucus thickness, and expression of mucin-2, α-defensin-1 and -4, zonula occludens-1, occludin, junctional adhesion molecule-A, claudin-1, 2 and -5. We also analyzed claudin-3 and fatty acid binding protein-2 in urine and plasma, respectively. A higher expression of mucin-2 protein was found in the colon compared to the ileum. In contrast, the α-defensins-1 and -4 were expressed almost exclusively in the ileum. The protein expression of the tight junction molecules claudin-1, occludin and zonula occludens-1 did not differ between colon and ileum, although some differences occurred at the mRNA level. No age- or gender-related differences were found. Differences between C57BL/6J and BALB/cJ mice were found for α-defensin-1 and -4 mRNA expression, and for urine and plasma marker concentrations. The α-defensin-1 mRNA correlated with claudin-5 mRNA, whereas α-defensin-4 mRNA correlated with claudin-3 concentrations in urine. In conclusion, we identified a number of murine intestinal barrier markers requiring tissue analyses or measurable in urine or plasma. We provide normal values for these markers in mice of different genetic background. Such data might be helpful for future animal studies in which the intestinal barrier is of interest.

Indexed as

alpha-DefensinsAnimalsCapillary PermeabilityColonFatty Acid-Binding ProteinsFemaleIleumIntestinal MucosaMaleMiceMice, Inbred BALB CMice, Inbred C57BLMucinsSpecies SpecificityTight Junction Proteinsalpha-DefensinsFatty Acid-Binding ProteinsMucinsTight Junction Proteinsclaudinfatty acid binding proteinmucusoccludinpermeability

Identifiers

PMID27583194
PMCPMC4993580
OpenAlexW2466534863

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.