Evidence map›Paper›PMID 30895635›Full record

ArticleAlimentary pharmacology & therapeutics2019

Mucosal 5-aminosalicylic acid concentration, drug formulation and mucosal microbiome in patients with quiescent ulcerative colitis.

Maya Olaisen, Olav Spigset, Arnar Flatberg, Atle van Beelen Granlund, Wenche Rødseth Brede, Grethe Albrektsen, Elin Synnøve Røyset, Bodil Gilde, Arne Kristian Sandvik, Tom Christian Martinsen and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Alimentary pharmacology & therapeutics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.9field-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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

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  14. Ethyl acetate extract ofFrontiers in pharmacology · 2023
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  19. Fecal microbiota profile in patients with inflammatory bowel disease in Taiwan.Journal of the Chinese Medical Association : JCMA · 2021
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Maya OlaisenDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.ORCID 0000-0001-9932-9380
Olav SpigsetDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
Arnar FlatbergDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
Atle van Beelen GranlundDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
Wenche Rødseth BredeDepartment of Clinical Pharmacology, Clinic of Laboratory Medicine, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway.
Grethe AlbrektsenDepartment of Public Health and Nursing, Faculty of Medicine and Health Science, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
Elin Synnøve RøysetDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
Bodil GildeDepartment of Medical Genetics, Clinic of Laboratory Medicine, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway.
Arne Kristian SandvikDepartment of Gastroenterology, Clinic of Medicine, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway.
Tom Christian MartinsenDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
Reidar FossmarkDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.
Norwegian University of Science and Technology · NOSt Olav's University Hospital · NO

Funding

Faculty of Medicine and Health Sciences at NTNU and RHALiaison Committee between Central Norway Regional Health Authority (RHA) and Norwegian University of Science and Technology (NTNU)St.Olav´s Hospital, Trondheim University Hospital
6 · The paper itself

Abstract

background5-aminosalicylic acid (5-ASA) is the first-line therapy for ulcerative colitis (UC). 5-ASA acts locally in the colonic mucosa by numerous proposed mechanisms, and is metabolised by N-acetyltransferase (NAT). Large variations in mucosal 5-ASA concentrations have been reported, but the underlying mechanisms are not understood.

aimTo study the relationship between 5-ASA concentration, 5-ASA formulation, NAT genotype and bacterial microbiome in patients with UC.

methodsPatients with quiescent UC, using monotherapy of Mezavant (n = 18), Asacol (n = 14) or Pentasa (n = 10), 4.0-4.8 g/day were included. 5-ASA was measured in colonic mucosal biopsies and serum by ultra-high performance liquid chromatography. NAT genotypes were determined by Sanger sequencing. Bacterial microbiome was sequenced from faeces and mucosa by 16S rRNA sequencing using Illumina Miseq.

resultsMezavant provided the highest mucosal 5-ASA levels (geometric mean 2.39 ng/mg), followed by Asacol (1.60 ng/mg, 33% lower, P = 0.50) and Pentasa (0.57 ng/mg, 76% lower, P = 0.033). Mucosal 5-ASA concentration was not associated with NAT genotype, but serum 5-ASA concentration and NAT1 genotype was associated (P = 0.044). Mucosal 5-ASA concentration was positively associated with mucosal bacterial diversity (P = 0.0005) and bacterial composition. High mucosal 5-ASA concentration was related to reduced abundance of pathogenic bacteria such as Proteobacteria, and increased abundance of several favourable bacteria such as Faecalibacterium.

conclusionsMucosal 5-ASA concentration is positively associated with bacterial diversity and a mucosal bacterial composition that are perceived favourable in UC. Mezavant yielded higher mucosal 5-ASA concentrations than Pentasa. 5-ASA may have beneficial effects on the mucosal microbiome, and high concentrations possibly amend dysbiosis in UC.

Indexed as

Colitis, UlcerativeAdultAnti-Inflammatory Agents, Non-SteroidalArylamine N-AcetyltransferaseDrug CompoundingFecesFemaleHumansIntestinal MucosaIsoenzymesMaleMesalamineMicrobiotaMiddle AgedYoung AdultAnti-Inflammatory Agents, Non-SteroidalArylamine N-AcetyltransferaseIsoenzymesMesalamineN-acetyltransferase 1

Identifiers

PMID30895635
PMCPMC6593792
OpenAlexW2924590809

What OpenQuestion holds

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LicenceCC BY-NC
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.