Evidence map›Paper›PMID 37938239›Full record

ArticleISME communications2021

Xylan utilisation promotes adaptation of Bifidobacterium pseudocatenulatum to the human gastrointestinal tract.

Yohei Watanabe, Yuki Saito, Taeko Hara, Naoki Tsukuda, Yoshimi Aiyama-Suzuki, Kana Tanigawa-Yahagi, Takashi Kurakawa, Kaoru Moriyama-Ohara, Satoshi Matsumoto, Takahiro Matsuki

Abstract read
In one paragraph

Article in ISME communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Selective human milk oligosaccharide utilization by members of theApplied and environmental microbiology · 2024
    Article
  10. Article
  11. Review
  12. Lactate cross-feeding betweenApplied and environmental microbiology · 2024
    Article
  13. Article
  14. Review
  15. Targeted remodeling of the human gut microbiome using Juemingzi (Frontiers in cellular and infection microbiology · 2024
    Article
  16. Article
  17. Article
  18. ExploringMicrobiome research reports · 2023
    Article
  19. Article
  20. Article
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

10 authors.

Yohei WatanabeYakult Central Institute, Kunitachi, Tokyo, Japan. yohei-watanabe@yakult.co.jp.ORCID http://orcid.org/0000-0001-7740-1361
Yuki SaitoYakult Central Institute, Kunitachi, Tokyo, Japan.ORCID http://orcid.org/0000-0002-4115-6509
Taeko HaraYakult Central Institute, Kunitachi, Tokyo, Japan.ORCID http://orcid.org/0000-0003-1105-0524
Naoki TsukudaYakult Central Institute, Kunitachi, Tokyo, Japan.ORCID http://orcid.org/0000-0002-4660-8498
Yoshimi Aiyama-SuzukiYakult Central Institute, Kunitachi, Tokyo, Japan.
Kana Tanigawa-YahagiYakult Central Institute, Kunitachi, Tokyo, Japan.ORCID http://orcid.org/0000-0001-9647-2552
Takashi KurakawaYakult Central Institute, Kunitachi, Tokyo, Japan.
Kaoru Moriyama-OharaYakult Central Institute, Kunitachi, Tokyo, Japan.
Satoshi MatsumotoYakult Central Institute, Kunitachi, Tokyo, Japan.
Takahiro MatsukiYakult Central Institute, Kunitachi, Tokyo, Japan. takahiro-matsuki@yakult.co.jp.ORCID http://orcid.org/0000-0001-7777-1602

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dietary carbohydrates impact the composition of the human gut microbiota. However, the relationship between carbohydrate availability for individual bacteria and their growth in the intestinal environment remains unclear. Here, we show that the availability of long-chain xylans (LCX), one of the most abundant dietary fibres in the human diet, promotes the growth of Bifidobacterium pseudocatenulatum in the adult human gut. Genomic and phenotypic analyses revealed that the availability of LCX-derived oligosaccharides is a fundamental feature of B. pseudocatenulatum, and that some but not all strains possessing the endo-1,4-β-xylanase (BpXyn10A) gene grow on LCX by cleaving the xylose backbone. The BpXyn10A gene, likely acquired by horizontal transfer, was incorporated into the gene cluster for LCX-derived oligosaccharide utilisation. Co-culturing with xylanolytic Bacteroides spp. demonstrated that LCX-utilising strains are more competitive than LCX non-utilising strains even when LCX-derived oligosaccharides were supplied. In LCX-rich dietary interventions in adult humans, levels of endogenous B. pseudocatenulatum increased only when BpXyn10A was detected, indicating that LCX availability is a fitness determinant in the human gut. Our findings highlight the enhanced intestinal adaptability of bifidobacteria via polysaccharide utilisation, and provide a cornerstone for systematic manipulation of the intestinal microbiota through dietary intervention using key enzymes that degrade polysaccharide as biomarkers.

Identifiers

PMID37938239
PMCPMC9723692

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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.