Evidence map›Paper›PMID 26623545›Full record

ArticleThe ISME journal2016

Microbial, host and xenobiotic diversity in the cystic fibrosis sputum metabolome.

Robert A Quinn, Vanessa V Phelan, Katrine L Whiteson, Neha Garg, Barbara A Bailey, Yan Wei Lim, Douglas J Conrad, Pieter C Dorrestein, Forest L Rohwer

Open access · bronzeAbstract read
In one paragraph

Article in The ISME journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
9.1field-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

68 citing papers in PubMed, 109 citations in OpenAlex.

  1. Bridging bench and bedside: translational omics ofEuropean respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  2. Review
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  5. Review
  6. BioMed research international · 2026
    Review
  7. Article
  8. Journal of virology · 2025
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Mutations in thebioRxiv : the preprint server for biology · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Observational

8 more citing papers are in PubMed but not listed here.

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

9 authors at 4 institutions in 1 country.

Robert A QuinnDepartment of Biology, San Diego State University, San Diego, CA, USA.
Vanessa V PhelanSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, CA, USA.
Katrine L WhitesonDepartment of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA.
Neha GargSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, CA, USA.
Barbara A BaileyDepartment of Mathematics and Statistics, San Diego State University, San Diego, CA, USA.
Yan Wei LimDepartment of Biology, San Diego State University, San Diego, CA, USA.
Douglas J ConradDepartment of Medicine, University of California at San Diego, La Jolla, CA, USA.
Pieter C DorresteinSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, CA, USA.
Forest L RohwerDepartment of Biology, San Diego State University, San Diego, CA, USA.
University of Montana · USSan Diego State University · USUniversity of California, Irvine · USUniversity of California, San Diego · US

Funding

SAN DIEGO CLINICAL AND TRANSLATIONAL RESEARCH INSTITUTEUL1RR031980 · NCRR · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2010 to 2011
$14.0M
Ecology of Cystic Fibrosis: Administrative SupplementR01GM095384 · NIGMS · SAN DIEGO STATE UNIVERSITY · PI ROHWER, FOREST L · 2011 to 2014
$1.9M
Synapt ion mobility mass spectrometerS10RR029121 · NCRR · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DORRESTEIN, PIETER C · 2011 to 2011
$802k
The Interactive Metabolome of Polymicrobial BiofilmsK01GM103809 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI PHELAN, VANESSA V · 2012 to 2016
$647k
NCRR NIH HHS S10 RR029121NCRR NIH HHS UL1 RR031980NIGMS NIH HHS K01 GM103809NIGMS NIH HHS R01 GM095384
6 · The paper itself

Abstract

Cystic fibrosis (CF) lungs are filled with thick mucus that obstructs airways and facilitates chronic infections. Pseudomonas aeruginosa is a significant pathogen of this disease that produces a variety of toxic small molecules. We used molecular networking-based metabolomics to investigate the chemistry of CF sputa and assess how the microbial molecules detected reflect the microbiome and clinical culture history of the patients. Metabolites detected included xenobiotics, P. aeruginosa specialized metabolites and host sphingolipids. The clinical culture and microbiome profiles did not correspond to the detection of P. aeruginosa metabolites in the same samples. The P. aeruginosa molecules that were detected in sputum did not match those from laboratory cultures. The pseudomonas quinolone signal (PQS) was readily detectable from cultured strains, but absent from sputum, even when its precursor molecules were present. The lack of PQS production in vivo is potentially due to the chemical nature of the CF lung environment, indicating that culture-based studies of this pathogen may not explain its behavior in the lung. The most differentially abundant molecules between CF and non-CF sputum were sphingolipids, including sphingomyelins, ceramides and lactosylceramide. As these highly abundant molecules contain the inflammatory mediator ceramide, they may have a significant role in CF hyperinflammation. This study demonstrates that the chemical makeup of CF sputum is a complex milieu of microbial, host and xenobiotic molecules. Detection of a bacterium by clinical culturing and 16S rRNA gene profiling do not necessarily reflect the active production of metabolites from that bacterium in a sputum sample.

Indexed as

MetabolomeMicrobiotaAdolescentCeramidesCystic FibrosisHumansLungPseudomonas aeruginosaPseudomonas InfectionsQuinolonesRNA, Ribosomal, 16SSputumXenobiotics2-heptyl-3-hydroxy-4-quinoloneCeramidesQuinolonesRNA, Ribosomal, 16SXenobiotics

Identifiers

PMID26623545
PMCPMC5029181
OpenAlexW2262231456

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.