Evidence map›Paper›PMID 36905424›Full record

ArticleArchives of gynecology and obstetrics2023

A pilot study using unique targeted testing of the urogenital microbiome has potential as a predictive test during IVF for implantation outcome.

Gloria E Evans, Vishakha Mahajan, Sarah Wakeman, Tania Slatter, Anna P Ponnampalam, Trevor P Anderson, Makhdoom Sarwar, John J Evans

Open access · hybridAbstract read
In one paragraph

Article in Archives of gynecology and obstetrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 37% 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

3 citing papers in PubMed, 3 citations in OpenAlex.

  1. Review
  2. Article
  3. Understanding the Associations of Urogenital Microbiomes With Fertility and In Vitro Fertilization.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025
    Review
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

8 authors at 3 institutions in 1 country.

Gloria E EvansDepartment of Obstetrics and Gynaecology, University of Auckland, 85 Park Road, Grafton, Auckland, 1023, New Zealand. gloria.evans@auckland.ac.nz.ORCID 0000-0001-5804-4071
Vishakha MahajanLiggins Institute, University of Auckland, Auckland, New Zealand.
Sarah WakemanFertility Associates, Christchurch, New Zealand.
Tania SlatterDepartment of Pathology, University of Otago, Dunedin, New Zealand.
Anna P PonnampalamDepartment of Obstetrics and Gynaecology, University of Auckland, 85 Park Road, Grafton, Auckland, 1023, New Zealand.
Trevor P AndersonCanterbury Health Laboratories, Christchurch, New Zealand.
Makhdoom SarwarDepartment of Obstetrics and Gynaecology, University of Otago, Christchurch, New Zealand.
John J EvansDepartment of Obstetrics and Gynaecology, University of Otago, Christchurch, New Zealand.
University of Auckland · NZUniversity of Otago · NZCanterbury Health Laboratories · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis pilot study aimed to develop a methodology characterising the urogenital microbiome as a predictive test in the IVF workup.

methodsUsing unique custom qPCRs, we tested for the presence of specific microbial species from vaginal samples and First Catch Urines from the male. The test panel included a range of potential urogenital pathogens, STIs, 'favourable bacteria' (Lactobacillus spp.) and 'unfavourable bacteria' (anaerobes) reported to influence implantation rates. We tested couples attending Fertility Associates, Christchurch, New Zealand for their first round of IVF.

resultsWe found that some microbial species affected implantation. The qPCR result was interpreted qualitatively using the Z proportionality test. Samples from women at the time of Embryo Transfer who did not achieve implantation had significantly higher percent of samples that were positive for Prevotella bivia and Staphylococcus aureus compared to women who did achieve implantation. DISCUSSION: The results provide evidence that most other microbial species chosen for testing had little functional effect on implantation rates. The addition of further microbial targets (yet to be determined) could be combined in this predictive test for vaginal preparedness on the day of embryo transfer. This methodology has a substantial advantage of being affordable and easily performed in any routine molecular laboratory. This methodology is most suitable as a foundation on which to develop a timely test of microbiome profiling. Using the indicators detected to have a significant influence, these results can be extrapolated.

conclusionUsing a rapid antigen test, a woman can self-sample prior to embryo transfer and obtain an indication of microbial species present which could influence implantation outcome.

Indexed as

Embryo ImplantationFertilization in VitroMicrobiotaVaginaFemaleHumansMalePilot ProjectsPregnancyPregnancy RateImplantation ratesIVFPredictive testUrogenital microbiome

Identifiers

PMID36905424
PMCPMC10147757
OpenAlexW4323921095

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.