Evidence map›Paper›PMID 27861554›Full record

ArticlePloS one2016

High Diversity and Variability in the Vaginal Microbiome in Women following Preterm Premature Rupture of Membranes (PPROM): A Prospective Cohort Study.

Teenus Paramel Jayaprakash, Emily C Wagner, Julie van Schalkwyk, Arianne Y K Albert, Janet E Hill, Deborah M Money, PPROM Study Group

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
5.1field-weighted citation impact, top 5% 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

53 citing papers in PubMed, 102 citations in OpenAlex.

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  19. The Gut Microbiome During Pregnancy.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2023
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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

7 authors at 3 institutions in 1 country.

Teenus Paramel JayaprakashDepartment of Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK, Canada.
Emily C WagnerWomen's Health Research Institute, BC Women's Hospital and Health Centre, Vancouver, BC, Canada.
Julie van SchalkwykWomen's Health Research Institute, BC Women's Hospital and Health Centre, Vancouver, BC, Canada.
Arianne Y K AlbertWomen's Health Research Institute, BC Women's Hospital and Health Centre, Vancouver, BC, Canada.
Janet E HillDepartment of Veterinary Microbiology, University of Saskatchewan, Saskatoon, SK, Canada.
Deborah M MoneyWomen's Health Research Institute, BC Women's Hospital and Health Centre, Vancouver, BC, Canada.
PPROM Study Group
B.C. Women's Hospital & Health Centre · CAUniversity of British Columbia · CAUniversity of Saskatchewan · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo characterize the vaginal microbiota of women following preterm premature rupture of membranes (PPROM), and determine if microbiome composition predicts latency duration and perinatal outcomes.

designA prospective cohort study.

settingCanada. POPULATION: Women with PPROM between 24+0 and 33+6 weeks gestational age (GA).

methodsMicrobiome profiles, based on pyrosequencing of the cpn60 universal target, were generated from vaginal samples at time of presentation with PPROM, weekly thereafter, and at delivery.

main outcome measuresVaginal microbiome composition, latency duration, gestational age at delivery, perinatal outcomes.

resultsMicrobiome profiles were generated from 70 samples from 36 women. Mean GA at PPROM was 28.8 wk (mean latency 2.7 wk). Microbiome profiles were highly diverse but sequences representing Megasphaera type 1 and Prevotella spp. were detected in all vaginal samples. Only 13/70 samples were dominated by Lactobacillus spp. Microbiome profiles at the time of membrane rupture did not cluster by gestational age at PPROM, latency duration, presence of chorioamnionitis or by infant outcomes. Mycoplasma and/or Ureaplasma were detected by PCR in 81% (29/36) of women, and these women had significantly lower GA at delivery and correspondingly lower birth weight infants than Mycoplasma and/or Ureaplasma negative women.

conclusionWomen with PPROM had mixed, abnormal vaginal microbiota but the microbiome profile at PPROM did not correlate with latency duration. Prevotella spp. and Megasphaera type I were ubiquitous. The presence of Mollicutes in the vaginal microbiome was associated with lower GA at delivery. The microbiome was remarkably unstable during the latency period.

Indexed as

BiodiversityMicrobial ViabilityMicrobiotaPremature Rupture of Fetal MembranesAdultCanadaCluster AnalysisFemaleGestational AgeHumansInfant, NewbornMetagenomeMetagenomicsPregnancyPregnancy OutcomeProspective StudiesRNA, Ribosomal, 16S

Identifiers

PMID27861554
PMCPMC5115810
OpenAlexW2550100707

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.