Evidence map›Paper›PMID 33369019›Full record

Trial reportMolecular nutrition & food research2021

Flexibility of Gut Microbiota in Ageing Individuals during Dietary Fiber Long-Chain Inulin Intake.

Mensiena B G Kiewiet, Marlies E Elderman, Sahar El Aidy, Johannes G M Burgerhof, Hester Visser, Elaine E Vaughan, Marijke M Faas, Paul de Vos

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Molecular nutrition & food research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
3.3field-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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 80 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

8 authors at 3 institutions in 1 country.

Mensiena B G KiewietImmunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, The Netherlands.
Marlies E EldermanImmunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, The Netherlands.ORCID 0000-0002-4661-9808
Sahar El AidyHost-microbe metabolic interactions, Groningen Biomolecular and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, Groningen, 9747 AG, The Netherlands.
Johannes G M BurgerhofDepartment of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, 9713 GZ, The Netherlands.
Hester VisserImmunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, The Netherlands.
Elaine E VaughanSensus (Royal Cosun), Oosterlijke Havendijk 15, Roosendaal, 4704 RA, The Netherlands.
Marijke M FaasImmunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, The Netherlands.
Paul de VosImmunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, The Netherlands.
University Medical Center Groningen · NLRoyal HaskoningDHV (Netherlands) · NLUniversity of Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

scopeDuring ageing, dysbiosis in the intestinal microbiota may occur and impact health. There is a paucity of studies on the effect of fiber on the elderly microbiota and the flexibility of the aged microbiota upon prebiotic intake. It is hypothesized that chicory long-chain inulin consumption can change microbiota composition, microbial fermentation products, and immunity in the elderly. METHODS AND

resultsA double-blind, placebo-controlled trial is performed in healthy individuals (55-80 years), in which microbiota composition is studied before, during, and after two months of chicory long-chain inulin consumption. Fecal short chain fatty acid concentrations, T cell subsets, and antibody responses against a Hepatitis B (HB) vaccine are measured as well. Inulin consumption modified the microbiota composition, as measured by 16S rRNA sequencing. Participants consuming inulin have higher microbial diversity and a relatively higher abundance of the Bifidobacterium genus, as well as Alistipes shahii, Anaerostipes hadrus, and Parabacteroides distasonis. While the immune responses remain unchanged, the isobutyric acid levels, an undesired fermentation product, tend to be lower in the inulin group.

conclusionsOverall, it is shown that the gut microbiota composition is still sensitive to chicory long-chain inulin induced changes in an ageing population, although this did not translate into an improved immune response to an HB vaccine.

Indexed as

AgedBacteroidetesBifidobacteriumCichorium intybusDietary FiberDouble-Blind MethodEubacterialesFatty Acids, VolatileFecesFemaleGastrointestinal MicrobiomeHepatitis B VaccinesHumansInulinMaleMiddle AgedDietary FiberFatty Acids, VolatileHepatitis B VaccinesInulinRNA, Ribosomal, 16Schicory long-chain inulinelderlyimmunologymicrobiotaSCFA

Identifiers

PMID33369019
PMCPMC8138623
OpenAlexW3114297254

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.