Evidence map›Paper›PMID 19796657›Full record

ArticleJournal of microbiological methods2009

Metagenomic study of the oral microbiota by Illumina high-throughput sequencing.

Vladimir Lazarevic, Katrine Whiteson, Susan Huse, David Hernandez, Laurent Farinelli, Magne Osterås, Jacques Schrenzel, Patrice François

Abstract read
In one paragraph

Article in Journal of microbiological methods, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 157 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
157citing 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

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

  1. Pooled it
  2. Trial
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  5. Trial
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. The Impact of ProbioticLife (Basel, Switzerland) · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. The Microbiome in Periodontitis and Diabetes.Frontiers in oral health · 2022
    Review
  20. Article

97 more citing papers are in PubMed but not listed here.

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.

Vladimir LazarevicGenomic Research Laboratory, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, CH-1211 Geneva 14, Switzerland. vladimir.lazarevic@genomic.ch
Katrine Whiteson
Susan Huse
David Hernandez
Laurent Farinelli
Magne Osterås
Jacques Schrenzel
Patrice François

Funding

The Role of the Gut Microbiota in Ulcerative ColitisUH2DK083993 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CHANG, EUGENE B, MEYER, FOLKER · 2009 to 2009
$1.1M
NIDDK NIH HHS UH2 DK083993NIDDK NIH HHS UH2DK083993
6 · The paper itself

Abstract

To date, metagenomic studies have relied on the utilization and analysis of reads obtained using 454 pyrosequencing to replace conventional Sanger sequencing. After extensively scanning the 16S ribosomal RNA (rRNA) gene, we identified the V5 hypervariable region as a short region providing reliable identification of bacterial sequences available in public databases such as the Human Oral Microbiome Database. We amplified samples from the oral cavity of three healthy individuals using primers covering an approximately 82-base segment of the V5 loop, and sequenced using the Illumina technology in a single orientation. We identified 135 genera or higher taxonomic ranks from the resulting 1,373,824 sequences. While the abundances of the most common phyla (Firmicutes, Proteobacteria, Actinobacteria, Fusobacteria and TM7) are largely comparable to previous studies, Bacteroidetes were less present. Potential sources for this difference include classification bias in this region of the 16S rRNA gene, human sample variation, sample preparation and primer bias. Using an Illumina sequencing approach, we achieved a much greater depth of coverage than previous oral microbiota studies, allowing us to identify several taxa not yet discovered in these types of samples, and to assess that at least 30,000 additional reads would be required to identify only one additional phylotype. The evolution of high-throughput sequencing technologies, and their subsequent improvements in read length enable the utilization of different platforms for studying communities of complex flora. Access to large amounts of data is already leading to a better representation of sample diversity at a reasonable cost.

Indexed as

ActinobacteriaBacteriaDatabases, GeneticFusobacteriaGenes, BacterialHumansMetagenomeMetagenomicsMouthProteobacteriaRNA, Ribosomal, 16SSequence AlignmentSequence Analysis, DNARNA, Ribosomal, 16S

Identifiers

PMID19796657
PMCPMC3568755

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.