Evidence map›Paper›PMID 35802574›Full record

ArticlePloS one2022

The effect of a fennel seed extract on the STAT signaling and intestinal barrier function.

Barun Das, John Rabalais, Philip Kozan, Tina Lu, Nassim Durali, Kevin Okamoto, Matthew D McGeough, Beom Jae Lee, Kim E Barrett, Ronald Marchelletta and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

11 citing papers in PubMed, 18 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

11 authors at 2 institutions in 2 countries.

Barun DasDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.
John RabalaisDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.
Philip KozanDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.
Tina LuDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.
Nassim DuraliDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.
Kevin OkamotoDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.
Matthew D McGeoughDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.
Beom Jae LeeDepartment of Medicine, University of California, San Diego, La Jolla, CA, United States of America.
Kim E BarrettDepartment of Medicine, University of California, San Diego, La Jolla, CA, United States of America.
Ronald MarchellettaDepartment of Medicine, University of California, San Diego, La Jolla, CA, United States of America.
Mamata SivagnanamDepartment of Pediatrics, University of California, San Diego, La Jolla, CA, United States of America.ORCID 0000-0002-3643-1326
University of California San Diego · USKorea University Medical Center · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFoeniculum vulgare, F. vulgare, commonly known as fennel, is believed to be one of the world's oldest medicinal herbs and has been exploited by people for centuries as a nutritional aid for digestive disorders. In many southeast Asian countries, it is ingested as an after-meal snack, mukhvas, due to its breath-freshening and digestive aid properties. F. vulgare is used in some countries, such as Iran, as a complementary and alternative treatment for inflammatory bowel disease (IBD).

methodsThis study investigated the effects of fennel seed extract on intestinal epithelium barrier function and the Signal Transducer and Activator of Transcription (STAT) pathway. This pathway is active in inflammatory bowel disease. To study the protective effects of fennel seed extract in vitro, monolayers derived from the T84 colonic cell line were challenged with interferon-gamma (IFN-γ) and monitored with and without fennel seed extract. To complement our in vitro studies, the dextran sodium sulfate induced murine colitis model was employed to ascertain whether the protective effect of fennel seed extract can be recapitulated in vivo.

resultsFennel seed extract was shown to exert a protective effect on transepithelial electrical resistance (TEER) in both T84 and murine models and showed increases in tight junction-associated mRNA in T84 cell monolayers. Both models demonstrated significant decreases in phosphorylated STAT1 (pSTAT1), indicating reduced activation of the STAT pathway. Additionally, mice treated with fennel seed showed significantly lower ulcer indices than control mice.

conclusionsWe conclude barrier function of the gastrointestinal tract is improved by fennel seed extract, suggesting the potential utility of this agent as an alternative or adjunctive therapy in IBD.

Indexed as

FoeniculumInflammatory Bowel DiseasesPlants, MedicinalAnimalsHumansIntestinal MucosaMicePlant ExtractsSeedsPlant Extracts

Identifiers

PMID35802574
PMCPMC9269469
OpenAlexW4284966248

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.