Evidence map›Paper›PMID 29349925›Full record

ArticleEnvironmental microbiology2018

Ethanolamine is a valuable nutrient source that impacts Clostridium difficile pathogenesis.

Kathryn L Nawrocki, Daniela Wetzel, Joshua B Jones, Emily C Woods, Shonna M McBride

Abstract read
In one paragraph

Article in Environmental microbiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
6.4field-weighted citation impact, top 2% 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

42 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
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  7. Proline Stickland fermentation supportsApplied and environmental microbiology · 2025
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  8. iMetaOmics · 2025
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  13. Glycine fermentation byInfection and immunity · 2023
    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

5 authors at 1 institution in 1 country.

Kathryn L NawrockiDepartment of Microbiology and Immunology, and Emory Antibiotic Resistance Center, Emory University School of Medicine, Atlanta, GA, USA.
Daniela WetzelDepartment of Microbiology and Immunology, and Emory Antibiotic Resistance Center, Emory University School of Medicine, Atlanta, GA, USA.
Joshua B JonesDepartment of Microbiology and Immunology, and Emory Antibiotic Resistance Center, Emory University School of Medicine, Atlanta, GA, USA.
Emily C WoodsDepartment of Microbiology and Immunology, and Emory Antibiotic Resistance Center, Emory University School of Medicine, Atlanta, GA, USA.
Shonna M McBrideDepartment of Microbiology and Immunology, and Emory Antibiotic Resistance Center, Emory University School of Medicine, Atlanta, GA, USA.ORCID 0000-0001-6221-714X
Emory University · US

Funding

Yerkes National Primate Research Center Role of type-I IFN in regulating COVID-19 induced inflammation and pathogenesisP51OD011132 · OD · EMORY UNIVERSITY · PI Joon Sup Lee · 2012 to 2026
$167.0M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM008169 · NIGMS · EMORY UNIVERSITY · PI GROSS, ROBERT E · 1987 to 2021
$20.3M
Host-induced Initiation of Clostridium difficile SporulationR01AI116933 · NIAID · EMORY UNIVERSITY · PI SHONNA M. MCBRIDE · 2015 to 2026
$4.8M
Antimicrobial Resistance and Therapeutic Discovery Training ProgramT32AI106699 · NIAID · EMORY UNIVERSITY · PI Graeme L Conn, Joanna B Goldberg · 2014 to 2026
$2.7M
Molecular Mechanisms of Clostridium difficile Resistance to Innate Host DefensesK01DK087763 · NIDDK · TUFTS UNIVERSITY BOSTON · PI MCBRIDE, SHONNA M. · 2011 to 2015
$713k
Regulation of Clostridium difficile Spore FormationR56AI109526 · NIAID · EMORY UNIVERSITY · PI MCBRIDE, SHONNA M. · 2014 to 2014
$383k
Role of Antimicrobial Resistance in Epidemic Clostridium difficile InfectionsR03DK101870 · NIDDK · EMORY UNIVERSITY · PI MCBRIDE, SHONNA M. · 2014 to 2015
$156k
NIAID NIH HHS R01 AI116933NIAID NIH HHS R56 AI109526NIAID NIH HHS T32 AI106699NIDDK NIH HHS K01 DK087763NIDDK NIH HHS R03 DK101870NIGMS NIH HHS T32 GM008169NIH HHS P51 OD011132
6 · The paper itself

Abstract

Clostridium (Clostridioides) difficile is a gastrointestinal pathogen that colonizes the intestinal tract of mammals and can cause severe diarrheal disease. Although C. difficile growth is confined to the intestinal tract, our understanding of the specific metabolites and host factors that are important for the growth of the bacterium is limited. In other enteric pathogens, the membrane-derived metabolite, ethanolamine (EA), is utilized as a nutrient source and can function as a signal to initiate the production of virulence factors. In this study, we investigated the effects of ethanolamine and the role of the predicted ethanolamine gene cluster (CD1907-CD1925) on C. difficile growth. Using targeted mutagenesis, we disrupted genes within the eut cluster and assessed their roles in ethanolamine utilization, and the impact of eut disruption on the outcome of infection in a hamster model of disease. Our results indicate that the eut gene cluster is required for the growth of C. difficile on ethanolamine as a primary nutrient source. Further, the inability to utilize ethanolamine resulted in greater virulence and a shorter time to morbidity in the animal model. Overall, these data suggest that ethanolamine is an important nutrient source within the host and that, in contrast to other intestinal pathogens, the metabolism of ethanolamine by C. difficile can delay the onset of disease.

Indexed as

AnimalsClostridioides difficileCricetinaeEthanolamineEthanolamine Ammonia-LyaseIntestinesNutrientsVirulenceVirulence FactorsEthanolamineEthanolamine Ammonia-LyaseNutrientsVirulence Factors

Identifiers

PMID29349925
PMCPMC5903940
OpenAlexW2792626372

What OpenQuestion holds

Textmetadata
LicenceTDM
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.