Evidence map›Paper›PMID 23451729›Full record

ArticleSurgical infections2013

Effect of dietary monosaccharides on Pseudomonas aeruginosa virulence.

Ryan K Nelson, Valeriy Poroyko, Michael J Morowitz, Don Liu, John C Alverdy

Abstract read
In one paragraph

Article in Surgical infections, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

11 citing papers in PubMed, 13 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

5 authors at 2 institutions in 1 country.

Ryan K NelsonDepartment of Surgery, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA.
Valeriy Poroyko
Michael J Morowitz
Don Liu
John C Alverdy
University of Chicago · USUniversity of Pittsburgh · US

Funding

PSEUDOMONAS'EFFECTS ON THE GUT BARRIER FROM SURGERYR01GM062344 · NIGMS · UNIVERSITY OF CHICAGO · PI ALVERDY, JOHN C · 2001 to 2025
$9.2M
NIGMS NIH HHS 5 R01 GM62344-11
6 · The paper itself

Abstract

backgroundPseudomonas aeruginosa is an opportunistic, gram-negative pathogen associated with many hospital-acquired infections and disease states. In particular, P. aeruginosa has been identified as a crucial factor in the pathogenesis of neonatal necrotizing enterocolitis (NEC). This condition presents more frequently in infants fed a formula-based diet, which may be a result of the specific monosaccharide content of this diet. We hypothesized that P. aeruginosa would express virulence genes differentially when exposed to monosaccharides present in formula versus those in human milk.

methodsUsing the results of a metabolomics study on infant diets and their resulting fecal samples, we identified several monosaccharides that distinguished milk from formula diets. Of these compounds, four were found to be metabolized by P. aeruginosa. We subsequently grew P. aeruginosa in tryptic soy broth (TSB) supplemented with these four monosaccharides and used quantitative reverse transcriptase-polymerase chain reaction to measure the expression of 59 major P. aeruginosa virulence genes. The results were standardized to an external control of P. aeruginosa grown in TSB alone.

resultsP. aeruginosa did not respond differentially to the monosaccharides after 6 h of growth. However, after 24 h, the organism grown in arabinose (present in formula), xylose (present in human milk), and galactose (present in both formula and feces from milk-fed infants) displayed a significant increase in the expression of virulence genes in all categories. In contrast, P. aeruginosa grown in mannose (present in the feces of milk-fed infants) displayed a significant decrease in virulence gene expression.

conclusionThese results demonstrate the importance of nutrient content on the relative expression of virulence genes in pathogens that colonize commonly the gut of infants. Understanding the effect of current dietary formulas on virulence gene expression in various gut-colonizing pathogens may present a new approach to elucidating the differences between human milk and formula in the development of NEC.

Indexed as

AerobiosisBacterial ProteinsBacterial Typing TechniquesBiofilmsGenes, BacterialHumansInfantInfant FormulaMonosaccharidesPseudomonas aeruginosaReverse Transcriptase Polymerase Chain ReactionVirulenceBacterial ProteinsMonosaccharides

Identifiers

PMID23451729
PMCPMC3601807
OpenAlexW2047935871

What OpenQuestion holds

Textmetadata
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.