Evidence map›Paper›PMID 31036529›Full record

ArticleEBioMedicine2019

Clostridium difficile trehalose metabolism variants are common and not associated with adverse patient outcomes when variably present in the same lineage.

David W Eyre, Xavier Didelot, Anthony M Buckley, Jane Freeman, Ines B Moura, Derrick W Crook, Tim E A Peto, A Sarah Walker, Mark H Wilcox, Kate E Dingle

Open access · goldAbstract read
In one paragraph

Article in EBioMedicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.6field-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

28 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Phenotypic analysis of variousApplied and environmental microbiology · 2025
    Article
  5. EmergingmSystems · 2025
    Article
  6. iMetaOmics · 2025
    Review
  7. Phenotypic analysis of variousbioRxiv : the preprint server for biology · 2025
    Article
  8. Article
  9. EmergingbioRxiv : the preprint server for biology · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Cytotoxic synergism ofWorld journal of gastroenterology · 2023
    Review
  14. Review
  15. Capturing the environment of the Clostridioides difficile infection cycle.Nature reviews. Gastroenterology & hepatology · 2022
    Review
  16. Article
  17. Article
  18. Article
  19. Invisible steps for a global endemy: molecular strategies adopted byTherapeutic advances in gastroenterology · 2021
    Review
  20. Trehalose-Induced Remodelling of the Human Microbiota AffectsFrontiers in cellular and infection microbiology · 2021
    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 at 4 institutions in 1 country.

David W EyreBig Data Institute, University of Oxford, UK; Nuffield Department of Medicine, University of Oxford, UK. Electronic address: david.eyre@bdi.ox.ac.uk.
Xavier DidelotSchool of Life Sciences, Department of Statistics, University of Warwick, UK.
Anthony M BuckleyHealthcare Associated Infections Research Group, University of Leeds, Leeds, UK.
Jane FreemanHealthcare Associated Infections Research Group, University of Leeds, Leeds, UK.
Ines B MouraHealthcare Associated Infections Research Group, University of Leeds, Leeds, UK.
Derrick W CrookNuffield Department of Medicine, University of Oxford, UK; National Institutes of Health Research Health Protection Unit on Healthcare Associated Infections and Antimicrobial Resistance, University of Oxford, UK; National Institutes of Health Research Biomedical Research Centre, University of Oxford, UK.
Tim E A PetoNuffield Department of Medicine, University of Oxford, UK; National Institutes of Health Research Health Protection Unit on Healthcare Associated Infections and Antimicrobial Resistance, University of Oxford, UK; National Institutes of Health Research Biomedical Research Centre, University of Oxford, UK.
A Sarah WalkerNuffield Department of Medicine, University of Oxford, UK; National Institutes of Health Research Health Protection Unit on Healthcare Associated Infections and Antimicrobial Resistance, University of Oxford, UK; National Institutes of Health Research Biomedical Research Centre, University of Oxford, UK.
Mark H WilcoxHealthcare Associated Infections Research Group, University of Leeds, Leeds, UK.
Kate E DingleNuffield Department of Medicine, University of Oxford, UK.
University of Leeds · GBUniversity of Oxford · GBNational Institute for Health Research · GBUniversity of Warwick · GB

Funding

Medical Research Council G0800778Medical Research Council MR/R015600/1
6 · The paper itself

Abstract

backgroundClostridium difficile ribotype-027, ribotype-078, and ribotype-017 are virulent and epidemic lineages. Trehalose metabolism variants in these ribotypes, combined with increased human trehalose consumption, have been hypothesised to have contributed to their emergence and virulence.

methods5232 previously whole-genome sequenced C. difficile isolates were analysed. Clinical isolates were used to investigate the impact of trehalose metabolism variants on mortality. Import data were used to estimate changes in dietary trehalose. Ribotype-027 virulence was investigated in a clinically reflective gut model.

findingsTrehalose metabolism variants found in ribotype-027 and ribotype-017 were widely distributed throughout C. difficile clade-2 and clade-4 in 24/29 (83%) and 10/11 (91%) of sequence types (STs), respectively. The four-gene trehalose metabolism cluster described in ribotype-078 was common in genomes from all five clinically-important C. difficile clades (40/167 [24%] STs). The four-gene cluster was variably present in 208 ribotype-015 infections (98 [47%]); 27/208 (13%) of these patients died within 30-days of diagnosis. Adjusting for age, sex, and infecting ST, there was no association between 30-day all-cause mortality and the four-gene cluster (OR 0.36 [95%CI 0.09-1.34, p = 0.13]). Synthetic trehalose imports in the USA, UK, Germany and the EU were  < 1 g/capita/year during 2000-2006, and  < 9 g/capita/year 2007-2012, compared with dietary trehalose from natural sources of ~100 g/capita/year. Trehalose supplementation did not increase ribotype-027 virulence in a clinically-validated gut model.

interpretationTrehalose metabolism variants are common in C. difficile. Increases in total dietary trehalose during the early-mid 2000s C. difficile epidemic were likely relatively minimal. Alternative explanations are required to explain why ribotype-027, ribotype-078 and ribotype-017 have been successful.

fundingNational Institute for Health Research. Gut model experiments only: Hayashibara Co. Ltd.

Indexed as

AgedAged, 80 and overCarbohydrate MetabolismClostridioides difficileClostridium InfectionsFemaleGenome, BacterialGenomicsHumansIncidenceMaleMiddle AgedOdds RatioPhylogenyPrognosisPublic Health SurveillanceTrehaloseClostridium difficileEpidemiologyTrehaloseWhole-genome sequencing

Identifiers

PMID31036529
PMCPMC6558026
OpenAlexW2941461858

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.