Evidence map›Paper›PMID 20482470›Full record

ArticleJournal of perinatal medicine2010

Microbial invasion of the amniotic cavity in preeclampsia as assessed by cultivation and sequence-based methods.

Daniel B DiGiulio, Mariateresa Gervasi, Roberto Romero, Shali Mazaki-Tovi, Edi Vaisbuch, Juan Pedro Kusanovic, Kimberley S Seok, Ricardo Gómez, Pooja Mittal, Francesca Gotsch and 4 more

Abstract read
In one paragraph

Article in Journal of perinatal medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

57 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  14. Preterm labor is characterized by a high abundance of amniotic fluid prostaglandins in patients with intra-amniotic infection or sterile intra-amniotic inflammation.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 · 2021
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  16. Critical reviews in microbiology · 2021
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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

14 authors.

Daniel B DiGiulioDepartment of Medicine, Stanford University School of Medicine, Stanford, CA, USA.
Mariateresa Gervasi
Roberto Romero
Shali Mazaki-Tovi
Edi Vaisbuch
Juan Pedro Kusanovic
Kimberley S Seok
Ricardo Gómez
Pooja Mittal
Francesca Gotsch
Tinnakorn Chaiworapongsa
Enrique Oyarzún
Chong Jai Kim
David A Relman

Funding

The Role Of Subclinical Infection And Cytokines In Preterm ParturitionZIAHD002400 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI ROMERO, ROBERTO · 2009 to 2025
$254.4M
NIH Director's Pioneer AwardDP1OD000964 · OD · STANFORD UNIVERSITY · PI RELMAN, DAVID A. · 2006 to 2010
$3.4M
Intramural NIH HHSNIH HHS DP1 OD000964NIH HHS DP1OD000964
6 · The paper itself

Abstract

objectiveInfection has been implicated in the pathogenesis of preeclampsia, yet the association between microbial invasion of the amniotic cavity (MIAC) and preeclampsia has not been determined. The aim of this study was to determine the prevalence, and microbial diversity associated with MIAC, as well as the nature of the host response to MIAC in patients with preeclampsia. METHOD OF STUDY: Amniotic fluid (AF) from 62 subjects with preeclampsia, not in labor, was analyzed with both cultivation and molecular methods. Broad-range and group-specific PCR assays targeting small subunit ribosomal DNA, or other gene sequences, from bacteria, fungi and archaea were used. Results were correlated with measurements of host inflammatory response, including AF white blood cell count and AF concentrations of glucose, interleukin-6 (IL-6) and MMP-8.

results1) The rate of MIAC in preeclampsia was 1.6% (1/62) based on cultivation techniques, 8% (5/62) based on PCR, and 9.6% (6/62) based on the combined results of both methods; 2) among the six patients diagnosed with MIAC, three had a positive PCR for Sneathia/Leptotrichia spp.; and 3) patients with MIAC were more likely to have evidence of an inflammatory response in the amniotic cavity than those without MIAC, as determined by a higher median AF IL-6 [1.65 ng/mL interquartile range (IQR): 0.35-4.62 vs. 0.22 ng/mL IQR: 0.12-0.51; P=0.002).

conclusionThe prevalence of MIAC in preeclampsia is low, suggesting that intra-amniotic infection plays only a limited role in preeclampsia. However, the unexpectedly high number of positive AF specimens for Sneathia/Leptotrichia warrants further investigation.

Indexed as

AdultAmnionAmniotic FluidBase SequenceChorioamnionitisCohort StudiesDNA, ArchaealDNA, BacterialDNA, FungalDNA PrimersFemaleHumansInfant, NewbornInflammation MediatorsInterleukin-6Matrix Metalloproteinase 8DNA, ArchaealDNA, BacterialDNA, FungalDNA PrimersIL6 protein, humanInflammation MediatorsInterleukin-6Matrix Metalloproteinase 8MMP8 protein, human

Identifiers

PMID20482470
PMCPMC3325506

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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.