Evidence map›Paper›PMID 34660337›Full record

ArticleFrontiers in cellular and infection microbiology2021

Microbiome Compositions From Infertile Couples Seeking

Somadina I Okwelogu, Joseph I Ikechebelu, Nneka R Agbakoba, Kingsley C Anukam

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cellular and infection microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 4% 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

37 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. All Properties of Infertility Microbiome in a Review Article.Journal of clinical laboratory analysis · 2025
    Review
  13. Semen Microbiome, Male Infertility, and Reproductive Health.International journal of molecular sciences · 2025
    Review
  14. Understanding the Associations of Urogenital Microbiomes With Fertility and In Vitro Fertilization.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025
    Review
  15. Review
  16. Review
  17. Article
  18. Review
  19. Review
  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

4 authors at 3 institutions in 2 countries.

Somadina I OkweloguDepartment of Medical Laboratory Science, Faculty of Health Sciences & Technology, Nnamdi Azikiwe University, Nnewi, Nigeria.
Joseph I IkechebeluDepartment of Obstetrics and Gynaecology, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria.
Nneka R AgbakobaDepartment of Medical Laboratory Science, Faculty of Health Sciences & Technology, Nnamdi Azikiwe University, Nnewi, Nigeria.
Kingsley C AnukamDepartment of Medical Laboratory Science, Faculty of Health Sciences & Technology, Nnamdi Azikiwe University, Nnewi, Nigeria.
Nnamdi Azikiwe University · NGNnamdi Azikiwe University Teaching Hospital · NGOntario Genomics · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Bacterial infections are usually suspected in infertile couples seeking IVF with no clear understanding of the microbial compositions present in the seminal fluids and vaginal niche of the patients. We used next-generation sequencing technology to correlate microbiota compositions with IVF clinical outcomes. Methods: Thirty-six couples were recruited to provide seminal fluids and vaginal swabs. Bacterial DNA was extracted, and V4 region of the 16S rRNA was amplified and sequenced in a pair-end configuration on the Illumina MiSeq platform rendering 2 × 150 bp sequences. Microbial taxonomy to species level was generated using the Greengenes database. Linear discriminant analysis (LDA) effect size (LEfSe) was used to identify biologically and statistically significant differences in relative abundance. Results: Seminal fluid microbiota compositions had lower bacterial concentrations compared with the vagina, but species diversity was significantly higher in seminal fluid samples. Azoospermic subjects had more relative abundance of Conclusions: Semen samples with positive IVF were significantly colonized by

Indexed as

MicrobiotaFemaleFertilization in VitroGenes, rRNAHumansInfertilityLactobacillusMaleRNA, Ribosomal, 16SVaginaRNA, Ribosomal, 16S16S rRNAbacteria infectionsinfertilityin vitro fertilization - pregnancymicrobiomeseminal fluidsequencingvagina

Identifiers

PMID34660337
PMCPMC8517523
OpenAlexW3204065639

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.