Evidence map›Paper›PMID 22343176›Full record

Trial reportJournal of acquired immune deficiency syndromes (1999)2012

Altered vaginal microbiota are associated with perinatal mother-to-child transmission of HIV in African women from Burkina Faso.

Daniel N Frank, Olivier Manigart, Valériane Leroy, Nicolas Meda, Diane Valéa, Weiming Zhang, François Dabis, Norman R Pace, Philippe Van de Perre, Edward N Janoff

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of acquired immune deficiency syndromes (1999), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

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

  1. Pooled it
  2. Article
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  4. Review
  5. Review
  6. A New Look at the GenusMicroorganisms · 2021
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  17. Immune development in HIV-exposed uninfected children born to HIV-infected women.Revista do Instituto de Medicina Tropical de Sao Paulo · 2017
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Daniel N FrankDepartment of Medicine, Division of Infectious Diseases, University of Colorado School of Medicine, Denver, CO, USA.
Olivier Manigart
Valériane Leroy
Nicolas Meda
Diane Valéa
Weiming Zhang
François Dabis
Norman R Pace
Philippe Van de Perre
Edward N Janoff

Funding

HIV-1 Evolution and Functional Correlates of MTCTR01AI097265 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI JANOFF, EDWARD N, LUZURIAGA, KATHERINE F · 2012 to 2016
$3.9M
Mucosal Determinants of HIV Infection of Infants by Breast MilkR01HD059527 · NICHD · UNIVERSITY OF COLORADO DENVER · PI JANOFF, EDWARD N · 2009 to 2012
$2.2M
Mucosal Defense vs Transmission of HIV by Breast MilkR01HD041361 · NICHD · UNIVERSITY OF MINNESOTA TWIN CITIES · PI JANOFF, EDWARD N · 2002 to 2006
$1.5M
Mucosal Immune Ontogeny and Intestinal Microbiota in InfantsR21AI083615 · NIAID · UNIVERSITY OF COLORADO DENVER · PI JANOFF, EDWARD N · 2009 to 2010
$458k
High Performance Validation and Classification of Metagenomic Ribosomal-RNA SequeR21HG005964 · NHGRI · UNIVERSITY OF COLORADO DENVER · PI FRANK, DANIEL N · 2010 to 2011
$456k
MUCOSAL IMMUNITY TO HIVN01DE072621 · NIDCR · UNIVERSITY OF MINNESOTA TWIN CITIES · PI JANOFF, EDWARD N · 1997 to 2000
$375k
NHGRI NIH HHS 1R21HG005964NHGRI NIH HHS R21 HG005964NIAID NIH HHS R01 AI097265NIAID NIH HHS R21 AI083615NIAID NIH HHS R21AI083615NICHD NIH HHS R01 HD041361NICHD NIH HHS R01 HD059527NICHD NIH HHS R01HD059527NICHD NIH HHS R01HD41361NIDCR NIH HHS DE72621
6 · The paper itself

Abstract

backgroundMother-to-child transmission (MTCT) of HIV remains a significant problem in resource-limited settings, despite the advent of antiretroviral therapies. Because perturbations in vaginal microbial communities are associated with sexual transmission of HIV, we determined whether perinatal MTCT is associated with the vaginal microbiotas of HIV-infected mothers.

methodsWe conducted a retrospective analysis of cervicovaginal microbiotas by pyrosequencing of bacterial 16S rRNA genes (median 350 sequences per sample) from 10 transmitters and 54 nontransmitters during a perinatal MTCT prevention clinical trial of azidothymidine and the microbicide benzalkonium chloride. Logistic regression was performed adjusting for multiple covariates, including CD4(+) T-cell numbers and treatment group, to correlate abundances of microbial taxa with perinatal MTCT.

resultsThe vaginal microbiotas of these subjects were dominated by several lactobacilli species, although a subset of subjects was colonized by diverse anaerobic species. MTCT of HIV was associated with significantly greater relative abundances of several groups of microorganisms. Most notably, among the abundant bacterial species, Gardnerella vaginalis was significantly enriched in cases of antepartum transmission, compared with nontransmission (odds ratio 1.7; P = 0.004). Neither azidothymidine nor benzalkonium chloride treatment was associated with shifts in microbial distributions compared with the placebo control group.

conclusionsThese data suggest that alterations in vaginal microbial communities are associated with an increased risk for perinatal MTCT, consistent with results with horizontal transmission of HIV. Therefore, determining the mucosal features associated with alterations in vaginal microbial communities may guide efforts to modulate the risk for HIV MTCT.

Indexed as

Infectious Disease Transmission, VerticalMetagenomeBase SequenceBurkina FasoDouble-Blind MethodFemaleGenes, BacterialHIV InfectionsHumansInfant, NewbornMolecular Sequence DataPhylogenyPregnancyPregnancy Complications, InfectiousRetrospective StudiesRNA, BacterialRNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID22343176
PMCPMC6384121

What OpenQuestion holds

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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.