Evidence map›Paper›PMID 33221964›Full record

ArticleArchives of microbiology2021

Comparison of different hypervariable regions of 16S rRNA for taxonomic profiling of vaginal microbiota using next-generation sequencing.

Auttawit Sirichoat, Nipaporn Sankuntaw, Chulapan Engchanil, Pranom Buppasiri, Kiatichai Faksri, Wises Namwat, Wasun Chantratita, Viraphong Lulitanond

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In one paragraph

Article in Archives of microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 7% 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Article
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  15. The female intimate microbiome space.npj women's health · 2025
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Diabetes and gut microbiome.Frontiers in microbiology · 2024
    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.

Auttawit SirichoatDepartment of Microbiology and Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
Nipaporn SankuntawChulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand.
Chulapan EngchanilDepartment of Microbiology and Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
Pranom BuppasiriDepartment of Obstetrics and Gynecology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
Kiatichai FaksriDepartment of Microbiology and Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
Wises NamwatDepartment of Microbiology and Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.
Wasun ChantratitaMedical Genome Center, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand.
Viraphong LulitanondDepartment of Microbiology and Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand. viraphng@kku.ac.th.ORCID http://orcid.org/0000-0001-5209-2312
Khon Kaen University · THMahidol University · THThammasat University · TH

Funding

Royal Golden Jubilee (RGJ) Ph.D. Programme PHD/0133/2558
6 · The paper itself

Abstract

The exploration of vaginal microbiota by using next-generation sequencing (NGS) of 16S ribosomal RNA (rRNA) gene is widely used. Up to now, different hypervariable regions have been selected to study vaginal microbiota by NGS and there is no standard method for analysis. The study aimed to characterize vaginal microbiota from clinical samples using NGS targeting the 16S rRNA gene and to determine the performance of individual and concatenated hypervariable region sequences to generate the taxonomic profiles of the vaginal microbiota. Fifty-one vaginal DNA samples were subjected to 16S rRNA gene NGS based on the Ion Torrent PGM platform with the use of two primer sets spanning seven hypervariable regions of the 16S rRNA gene. Our analysis revealed that the predominant bacterial genera were Lactobacillus, Gardnerella and Atopobium, which accounted for 78%, 14% and 2%, respectively, of sequences from all vaginal bacterial genera. At the species level, Lactobacillus iners, Gardnerella vaginalis and Atopobium vaginae accounted for 72%, 10% and 6%, respectively, of the bacterial cells present. Analyses using the V3 region generally indicated the highest bacterial diversity followed by the V6-V7 and V4 regions, while the V9 region gave the lowest bacterial resolution. NGS based on the 16S rRNA gene can give comprehensive estimates of the diversity of vaginal bacterial communities. Selection of sequences from appropriate hypervariable regions is necessary to provide reliable information on bacterial community diversity.

Indexed as

Genetic VariationBacteriaDNA, BacterialFemaleHigh-Throughput Nucleotide SequencingHumansMicrobiotaRNA, Ribosomal, 16SVaginaDNA, BacterialRNA, Ribosomal, 16S16S rRNA geneBacterial diversityHypervariable regionsIon Torrent PGMNext-generation sequencingVaginal microbiota

Identifiers

PMID33221964
OpenAlexW3110620245

What OpenQuestion holds

Textmetadata
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.