Evidence map›Paper›PMID 36572703›Full record

ArticleScientific reports2022

Fecal level of butyric acid, a microbiome-derived metabolite, is increased in patients with severe carotid atherosclerosis.

Kristine Stø, Jørgen Valeur, Thor Ueland, Gunn Helen Malmstrøm, Vigdis Bjerkeli, Marius Trøseid, Johannes R Hov, Kristian Holm, Beate Vestad, Bente Halvorsen and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 6% 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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. OralJournal of oral microbiology · 2026
    Article
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  8. Metabolomic alterations in human brain microvascular endothelial cells induced by traumatic injury.Metabolomics : Official journal of the Metabolomic Society · 2025
    Article
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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

12 authors at 3 institutions in 1 country.

Kristine StøInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway. kristine.sto@medisin.uio.no.
Jørgen ValeurUnger-Vetlesen Institute, Lovisenberg Diaconal Hospital, Oslo, Norway.
Thor UelandInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway.
Gunn Helen MalmstrømUnger-Vetlesen Institute, Lovisenberg Diaconal Hospital, Oslo, Norway.
Vigdis BjerkeliInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway.
Marius TrøseidInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway.
Johannes R HovInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway.
Kristian HolmInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway.
Beate VestadResearch Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.
Bente HalvorsenInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway.
Mona SkjellandInstitute of Clinical Medicine, University of Oslo, Postboks 1171, 0318, Oslo, Norway.
Karolina R SkagenDepartment of Neurology, Oslo University Hospital, Oslo, Norway.
University of Oslo · NOOslo University Hospital · NOLovisenberg Diakonale Sykehus · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The short-chain fatty acid (SCFA) butyric acid maintains a healthy gut barrier and vascular endothelium. We aimed to investigate the association between fecal butyric acid, carotid atherosclerosis and risk factors for ischemic stroke. Patients with severe carotid atherosclerosis (i.e. ≥ 50% stenosis) (n = 43) were compared with healthy controls (n = 38). We analyzed fecal SCFAs by gas chromatography, microbiota composition by 16S rRNA sequencing, markers of gut barrier damage and inflammasome activation by immunoassay, and plasma SCFAs by ultra-high performance liquid chromatography-tandem mass spectroscopy. Patients had higher fecal butyric acid level (p = 0.024), along with increased functional potential of microbial butyric acid production (p = 0.031), compared with controls. Dietary fiber intake was comparable. Patients had higher levels of gut barrier damage markers CCL25 and IFABP, and the inflammasome activation marker IL-18, whereas plasma level of butyric was similar. Increased fecal butyric acid was associated with higher BMI, waist-hip ratio, HbA1c, CRP and leukocyte count. Contrary to our hypothesis, patients with severe carotid atherosclerosis had higher fecal butyric acid level, and increased microbial production, compared with controls. Gut barrier damage in patients might indicate decreased absorption of butyric acid and hence contribute to the higher fecal level.

Indexed as

Carotid Artery DiseasesGastrointestinal MicrobiomeMicrobiotaButyric AcidFatty Acids, VolatileFecesHumansInflammasomesRNA, Ribosomal, 16SButyric AcidFatty Acids, VolatileInflammasomesRNA, Ribosomal, 16S

Identifiers

PMID36572703
PMCPMC9792531
OpenAlexW4312220103

What OpenQuestion holds

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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.