Evidence map›Paper›PMID 21306340›Full record

ArticleActa obstetricia et gynecologica Scandinavica2011

Subtle perturbations of genital microflora alter mucosal immunity among low-risk pregnant women.

Brenna L Anderson, Susan Cu-Uvin, Christina A Raker, Christine Fitzsimmons, Sharon L Hillier

Open access · greenAbstract readComparative Study
In one paragraph

Article in Acta obstetricia et gynecologica Scandinavica, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.1field-weighted citation impact, top 26% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Microbiome, Human Papillomavirus and Cervical Carcinogenesis.Current topics in microbiology and immunology · 2026
    Review
  3. Article
  4. Engineered Tissue Models to Decode Host-Microbiota Interactions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  5. Review
  6. Review
  7. Observational
  8. Article
  9. Review
  10. The Female Vaginal Microbiome in Health and Bacterial Vaginosis.Frontiers in cellular and infection microbiology · 2021
    Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Does the vaginal microbiota play a role in the development of cervical cancer?Translational research : the journal of laboratory and clinical medicine · 2017
    Review
  16. Review
  17. The Human Microbiome during Bacterial Vaginosis.Clinical microbiology reviews · 2016
    Review
  18. Article
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

Brenna L AndersonDepartment of Obstetrics and Gynecology, Warren Alpert Medical School of Brown University, Providence, RI, USA. banderson@wihri.org
Susan Cu-Uvin
Christina A Raker
Christine Fitzsimmons
Sharon L Hillier
Brown University · USUniversity of Pittsburgh · US

Funding

Translational ScienceP30AI042853 · NIAID · MIRIAM HOSPITAL · PI LARRY K BROWN · 1998 to 2026
$51.7M
Brown/WIH Women's Reproductive Health Research Career Development ProgramK12HD050108 · NICHD · WOMEN AND INFANTS HOSPITAL-RHODE ISLAND · PI HAMPTON, BRITTANY STAR · 2005 to 2019
$4.1M
Antiviral Therapy and HIV in the Genital Tract of WomenK24AI066884 · NIAID · MIRIAM HOSPITAL · PI CU-UVIN, SUSAN · 2005 to 2009
$738k
The Role of Mucosal Immunity in the Risk of HIV-1 Acquisition During PregnancyK23HD062340 · NICHD · WOMEN AND INFANTS HOSPITAL-RHODE ISLAND · PI HUGHES, BRENNA L. · 2009 to 2013
$665k
NIAID NIH HHS K24 AI066884NIAID NIH HHS K24AI066884NIAID NIH HHS P30 AI042853NICHD NIH HHS K12 HD050108NICHD NIH HHS K12HD050108NICHD NIH HHS K23 HD062340NICHD NIH HHS K23HD062340-01NICHD NIH HHS L30 HD056376
6 · The paper itself

Abstract

objectiveAlteration in the vaginal flora has been associated with adverse pregnancy outcomes. The objective of this study was to examine the impact of changes in individual microflora on genital immunity among low-risk pregnant women in early pregnancy.

designCross-sectional study.

settingLarge, tertiary care, academic hospital clinic. POPULATION: Low-risk women were enrolled prior to 14 weeks' gestation.

methodsWomen were included if they had no medical or previous obstetrical complications, were non-smokers, had no sexually transmitted infections and no intercourse in the last 48 hours. Consenting women underwent speculum examination for collection of vaginal culture and Dacron swabs for cytokine analysis. Semi-quantitative vaginal cultures were performed in a reference laboratory.

main outcome measuresConcentrations of immune mediators were compared in the presence of various organisms. Concentrations were converted to multiples of the median to standardize the values of each mediator. Regression analyses were performed to control for race.

resultsWe enrolled 47 women. The frequencies of genital microorganisms were: H(2)O(2) -producing lactobacilli (70%), Ureaplasma urealyticum (66%), Gardnerella vaginalis (45%), anaerobic non-pigmented Gram-negative rods (ANPGNR, 40%), anaerobic pigmented Gram-negative rods (APGNR, 17%). After adjusting for race and body mass index, interleukin-1β, interferon-γ, tumor necrosis factor-α and granulocyte macrophage-colony stimulating factor were increased in the presence of G. vaginalis, ANPGNR, and APGNR. There was no consistent impact on the other markers of immune activation.

conclusionThe presence of individual species impacts genital immunity among low-risk pregnant women. Perturbations in genital immunity could partially explain heterogeneity in adverse pregnancy outcomes.

Indexed as

AdultBiomarkersCytokinesEnterococcusFemaleGardnerella vaginalisGram-Negative Anaerobic Straight, Curved, and Helical RodsGranulocyte-Macrophage Colony-Stimulating FactorHumansInterferon-gammaInterleukin-1betaLactobacillusMucous MembranePregnancyTumor Necrosis Factor-alphaUreaplasma urealyticumBiomarkersCytokinesGranulocyte-Macrophage Colony-Stimulating FactorInterferon-gammaInterleukin-1betaTumor Necrosis Factor-alpha

Identifiers

PMID21306340
PMCPMC5860914
OpenAlexW1582022343

What OpenQuestion holds

Textmetadata
LicenceTDM
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.