Evidence map›Paper›PMID 25637842›Full record

ArticleAmerican journal of obstetrics and gynecology2015

Identification of a gene in Mycoplasma hominis associated with preterm birth and microbial burden in intraamniotic infection.

Matthew Josiah Allen-Daniels, Myrna G Serrano, Lindsey P Pflugner, Jennifer M Fettweis, Melissa A Prestosa, Vishal N Koparde, J Paul Brooks, Jerome F Strauss, Roberto Romero, Tinnakorn Chaiworapongsa and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of obstetrics and gynecology, 2015. 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
7.8field-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, 69 citations in OpenAlex.

  1. Review
  2. Article
  3. A genome-wide investigation ofFrontiers in microbiology · 2025
    Article
  4. Article
  5. Pathogens (Basel, Switzerland) · 2023
    Review
  6. Detection of Putative Virulence GenesInternational journal of molecular sciences · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Frontiers in microbiology · 2020
    Article
  15. Impact of Symbiosis BetweenFrontiers in cellular and infection microbiology · 2020
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. The frequency and clinical significance of intra-amniotic inflammation in twin pregnancies with preterm labor and intact membranes.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019
    Observational
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

13 authors at 4 institutions in 1 country.

Matthew Josiah Allen-DanielsDepartment of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA.
Myrna G SerranoCenter for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, VA.
Lindsey P PflugnerDepartment of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA.
Jennifer M FettweisDepartment of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA.
Melissa A PrestosaDepartment of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA.
Vishal N KopardeCenter for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, VA.
J Paul BrooksDepartment of Statistical Sciences and Operations Research, School of Medicine, Virginia Commonwealth University, Richmond, VA.
Jerome F StraussDepartment of Obstetrics and Gynecology, School of Medicine, Virginia Commonwealth University, Richmond, VA.
Roberto RomeroDivision of Intramural Research, Program for Perinatal Research and Obstetrics, Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, and Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI.
Tinnakorn ChaiworapongsaDivision of Intramural Research, Program for Perinatal Research and Obstetrics, Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, and Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI.
David A EschenbachDepartment of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA.
Gregory A BuckDepartment of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA; Center for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, VA.
Kimberly K JeffersonDepartment of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA. Electronic address: kkjefferson@vcu.edu.
Virginia Commonwealth University · USEunice Kennedy Shriver Center · USNational Institutes of Health · USUniversity of Washington · US

Funding

VCU NIMHD Comprehensive Center of Excellence (Project 1; PI: Strauss)P60MD002256 · NIMHD · VIRGINIA COMMONWEALTH UNIVERSITY · PI BRADLEY, CATHY J · 2007 to 2016
$13.1M
A Multi-'omic Analysis of the Vaginal Microbiome during PregnancyU54HD080784 · NICHD · VIRGINIA COMMONWEALTH UNIVERSITY · PI BUCK, GREGORY ALLEN, JEFFERSON, KIMBERLY KAY · 2014 to 2015
$8.2M
The Vaginal Microbiome: Disease, Genetics and the EnvironmentUH3AI083263 · NIAID · VIRGINIA COMMONWEALTH UNIVERSITY · PI BUCK, GREGORY ALLEN · 2010 to 2012
$6.8M
Virginia Commonwealth University Initiative for Maximizing Student DevelopmentR25GM090084 · NIGMS · VIRGINIA COMMONWEALTH UNIVERSITY · PI AKBARALI, HAMID I, LLOYD, JOYCE A. · 2010 to 2022
$5.2M
Virginia Commonwealth University Postbaccalaureate Research Education ProgramR25GM089614 · NIGMS · VIRGINIA COMMONWEALTH UNIVERSITY · PI Rebecca Kelley Martin · 2010 to 2026
$4.9M
A Multi-'omic Analysis of the Vaginal Microbiome during PregnancyU54DE023786 · NIDCR · VIRGINIA COMMONWEALTH UNIVERSITY · PI BUCK, GREGORY ALLEN, JEFFERSON, KIMBERLY KAY · 2013 to 2014
$3.0M
INFECTION AND HISTOPATHOLOGY IN PRETERM LABORR01AI031871 · NIAID · UNIVERSITY OF WASHINGTON · PI ESCHENBACH, DAVID A. · 1991 to 1995
–
NIAID NIH HHS 4UH3AI083263NIAID NIH HHS AI 31871NIAID NIH HHS R01 AI031871NIAID NIH HHS UH3 AI083263NICHD NIH HHS U54 HD080784NIDCR NIH HHS U54 DE023786NIGMS NIH HHS R25 GM089614NIGMS NIH HHS R25 GM090084NIMHD NIH HHS P60 MD002256
6 · The paper itself

Abstract

objectiveMicrobial invasion of the amniotic cavity is associated with spontaneous preterm labor and adverse pregnancy outcome, and Mycoplasma hominis often is present. However, the pathogenic process by which M hominis invades the amniotic cavity and gestational tissues, often resulting in chorioamnionitis and preterm birth, remains unknown. We hypothesized that strains of M hominis vary genetically with regards to their potential to invade and colonize the amniotic cavity and placenta. STUDY

designWe sequenced the entire genomes of 2 amniotic fluid isolates and a placental isolate of M hominis from pregnancies that resulted in preterm births and compared them with the previously sequenced genome of the type strain PG21. We identified genes that were specific to the amniotic fluid/placental isolates. We then determined the microbial burden and the presence of these genes in another set of subjects from whom samples of amniotic fluid had been collected and were positive for M hominis.

resultsWe identified 2 genes that encode surface-located membrane proteins (Lmp1 and Lmp-like) in the sequenced amniotic fluid/placental isolates that were truncated severely in PG21. We also identified, for the first time, a microbial gene of unknown function that is referred to in this study as gene of interest C that was associated significantly with bacterial burden in amniotic fluid and the risk of preterm delivery in patients with preterm labor.

conclusionA gene in M hominis was identified that is associated significantly with colonization and/or infection of the upper reproductive tract during pregnancy and with preterm birth.

Indexed as

AdultAmnionAmniotic FluidChorioamnionitisFemaleHumansMycoplasma hominisMycoplasma InfectionsPlacentaPregnancyPremature BirthYoung Adultchorioamnionitisgenital mycoplasmasgenome sequencingmicrobial invasion of the amniotic cavitypathogenicity

Identifiers

PMID25637842
PMCPMC4457590
OpenAlexW1976758887

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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.