Evidence map›Paper›PMID 23341849›Full record

ArticleThe open dentistry journal2012

Metagenomic analysis of subgingival microbiota following non-surgical periodontal therapy: a pilot study.

Theresia Laksmana, Weerayuth Kittichotirat, Yanyan Huang, Weizhen Chen, Michael Jorgensen, Roger Bumgarner, Casey Chen

Abstract read
In one paragraph

Article in The open dentistry journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Article
  8. Article
  9. Microbiota in Periodontitis: Advances in the Omic Era.Advances in experimental medicine and biology · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Signature of Microbial Dysbiosis in Periodontitis.Applied and environmental microbiology · 2017
    Article
  15. Article
  16. 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

7 authors.

Theresia LaksmanaOstrow School of Dentistry of USC, Los Angeles, CA, USA.
Weerayuth Kittichotirat
Yanyan Huang
Weizhen Chen
Michael Jorgensen
Roger Bumgarner
Casey Chen

Funding

Novel clone-specific virulence determinants of A. actinomycetemcomitansR01DE012212 · NIDCR · UNIVERSITY OF SOUTHERN CALIFORNIA · PI CHEN, CASEY · 1999 to 2016
$5.0M
NIDCR NIH HHS R01 DE012212
6 · The paper itself

Abstract

This study tested the feasibility of a high throughput metagenomic approach to analyze the pre- and posttreatment of subgingival plaque in two subjects with aggressive periodontitis. DNA was extracted from subgingival samples and subjected to PCR amplification of the c2-c4 regions of the 16S rDNA using primers with bar codes to identify individual samples. The PCR products were pooled and sequenced for the v4 region of the 16S rDNA using the 454 FLX standard platform. The results were analyzed for species/phylotypes in the Human Oral Microbiome Database (HOMD) and Ribosomal Database Project (RDP) database. The sequencing of the amplicons resulted in 24,673 reads and identified 208 species/phylotypes. Of those, 129 species/phylotypes were identified in both patients but their proportions varied. While >120 species/phylotypes were identified in all samples, 28-42 species/phylotypes cumulatively represent 90% of all subgingival bacteria in each sample. The remaining species/phylotypes each constituted ≤0.2% of the total subgingival bacteria. In conclusion, the subgingival microbiota are characterized by high species richness dominated by a few species/ phylotypes. The microbiota changed after periodontal therapy. High throughput metagenomic analysis is applicable to assess the complexity and changes of the subgingival microbiota.

Indexed as

Aggressive periodontitismetagenomicsnonsurgical treatmentsubgingival plaque

Identifiers

PMID23341849
PMCPMC3547359

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.