Evidence map›Paper›PMID 28630471›Full record

Trial reportScientific reports2017

Candidatus Mycoplasma girerdii replicates, diversifies, and co-occurs with Trichomonas vaginalis in the oral cavity of a premature infant.

Elizabeth K Costello, Christine L Sun, Erica M Carlisle, Michael J Morowitz, Jillian F Banfield, David A Relman

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 19% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Pathogens (Basel, Switzerland) · 2023
    Review
  3. Article
  4. Evolutionary conservation ofFrontiers in microbiology · 2023
    Article
  5. Review
  6. Characterisation ofInternational journal of molecular sciences · 2022
    Article
  7. Article
  8. High Co-Infection Rate ofHealthcare (Basel, Switzerland) · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Replication and refinement of a vaginal microbial signature of preterm birth in two racially distinct cohorts of US women.Proceedings of the National Academy of Sciences of the United States of America · 2017
    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

6 authors at 4 institutions in 1 country.

Elizabeth K CostelloDepartment of Medicine, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Christine L SunDepartment of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Erica M CarlisleDepartment of Surgery, Division of Pediatric Surgery, University of Iowa College of Medicine, Iowa City, IA, 52242, USA.
Michael J MorowitzDepartment of Surgery, Division of Pediatric Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15224, USA.
Jillian F BanfieldDepartment of Earth & Planetary Science, University of California, Berkeley, CA, 94720, USA.
David A RelmanDepartment of Medicine, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA, 94305, USA. relman@stanford.edu.
Stanford University · USPlanetary Science Institute · USUniversity of Iowa · USUniversity of Pittsburgh · US

Funding

Population Genomic Analysis of Gut Microbial Colonization in Premature InfantsR01AI092531 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI Jillian Banfield, Michael Morowitz · 2011 to 2026
$11.3M
Resilience in early development: How antibiotics shape infant microbiome assemblyK99HD074743 · NICHD · STANFORD UNIVERSITY · PI COSTELLO, ELIZABETH · 2013 to 2014
$210k
NIAID NIH HHS R01 AI092531NICHD NIH HHS K99 HD074743
6 · The paper itself

Abstract

Genital mycoplasmas, which can be vertically transmitted, have been implicated in preterm birth, neonatal infections, and chronic lung disease of prematurity. Our prior work uncovered 16S rRNA genes belonging to a novel, as-yet-uncultivated mycoplasma (lineage 'Mnola') in the oral cavity of a premature neonate. Here, we characterize the organism's associated community, growth status, metabolic potential, and population diversity. Sequencing of genomic DNA from the infant's saliva yielded 1.44 Gbp of high-quality, non-human read data, from which we recovered three essentially complete (including 'Mnola') and three partial draft genomes (including Trichomonas vaginalis). The completed 629,409-bp 'Mnola' genome (Candidatus Mycoplasma girerdii str. UC-B3) was distinct at the strain level from its closest relative, vaginally-derived Ca. M. girerdii str. VCU-M1, which is also associated with T. vaginalis. Replication rate measurements indicated growth of str. UC-B3 within the infant. Genes encoding surface-associated proteins and restriction-modification systems were especially diverse within and between strains. In UC-B3, the population genetic underpinnings of phase variable expression were evident in vivo. Unique among mycoplasmas, Ca. M. girerdii encodes pyruvate-ferredoxin oxidoreductase and may be sensitive to metronidazole. This study reveals a metabolically unique mycoplasma colonizing a premature neonate, and establishes the value of genome-resolved metagenomics in tracking phase variation.

Indexed as

MouthMycoplasmaMycoplasma InfectionsTrichomonas InfectionsTrichomonas vaginalisFemaleHumansInfant, NewbornMale

Identifiers

PMID28630471
PMCPMC5476646
OpenAlexW2625901281

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.