Evidence map›Paper›PMID 29445174›Full record

ArticleNature communications2018

A spatial gradient of bacterial diversity in the human oral cavity shaped by salivary flow.

Diana M Proctor, Julia A Fukuyama, Peter M Loomer, Gary C Armitage, Stacey A Lee, Nicole M Davis, Mark I Ryder, Susan P Holmes, David A Relman

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
9.3field-weighted citation impact, top 2% 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

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. The Oral Microbiome of King Richard III of England.American journal of biological anthropology · 2026
    Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. From Global to Nano: A Geographical Perspective ofPathogens (Basel, Switzerland) · 2024
    Review
  18. Article
  19. Review
  20. Review

13 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

9 authors at 4 institutions in 2 countries.

Diana M ProctorDepartment of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA.ORCID http://orcid.org/0000-0002-7078-0669
Julia A FukuyamaDepartment of Computational Biology, Fred Hutchinson Cancer Research Institute, Seattle, WA, 98109, USA.
Peter M LoomerDivision of Periodontology, University of California, San Francisco School of Dentistry, San Francisco, CA, 94143, USA.
Gary C ArmitageDivision of Periodontology, University of California, San Francisco School of Dentistry, San Francisco, CA, 94143, USA.
Stacey A LeeDivision of Periodontology, University of California, San Francisco School of Dentistry, San Francisco, CA, 94143, USA.
Nicole M DavisDepartment of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Mark I RyderDivision of Periodontology, University of California, San Francisco School of Dentistry, San Francisco, CA, 94143, USA.
Susan P HolmesDepartment of Statistics, Stanford University, Stanford, CA, 94305, USA.ORCID http://orcid.org/0000-0002-2208-8168
David A RelmanDepartment of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA. relman@stanford.edu.ORCID http://orcid.org/0000-0001-8331-1354
University of California, San Francisco · USStanford University · USCape Town HVTN Immunology Laboratory / Hutchinson Centre Research Institute of South Africa · ZAVA Palo Alto Health Care System · US

Funding

Supplement to Enhance Wellness and Resiliency in the Graduate EnvironmentT32GM007276 · NIGMS · STANFORD UNIVERSITY · PI MORRISON, ASHBY J. · 1985 to 2023
$32.9M
MOLECULAR BASIS OF HOST-PARASITE INTERACTIONT32AI007328 · NIAID · STANFORD UNIVERSITY · PI JUSTIN L SONNENBURG · 1987 to 2026
$11.9M
NIH Director's Pioneer AwardDP1OD000964 · OD · STANFORD UNIVERSITY · PI RELMAN, DAVID A. · 2006 to 2010
$3.4M
Hyposalivation and the Human Oral MicrobiomeR01DE023113 · NIDCR · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI RELMAN, DAVID A. · 2013 to 2017
$3.4M
NIAID NIH HHS T32 AI007328NIDCR NIH HHS R01 DE023113NIGMS NIH HHS T32 GM007276NIH HHS DP1 OD000964
6 · The paper itself

Abstract

Spatial and temporal patterns in microbial communities provide insights into the forces that shape them, their functions and roles in health and disease. Here, we used spatial and ecological statistics to analyze the role that saliva plays in structuring bacterial communities of the human mouth using >9000 dental and mucosal samples. We show that regardless of tissue type (teeth, alveolar mucosa, keratinized gingiva, or buccal mucosa), surface-associated bacterial communities vary along an ecological gradient from the front to the back of the mouth, and that on exposed tooth surfaces, the gradient is pronounced on lingual compared to buccal surfaces. Furthermore, our data suggest that this gradient is attenuated in individuals with low salivary flow due to Sjögren's syndrome. Taken together, our findings imply that salivary flow influences the spatial organization of microbial communities and that biogeographical patterns may be useful for understanding host physiological processes and for predicting disease.

Indexed as

SalivationAdultAgedBacteriaBiodiversityFemaleGenetic VariationHumansMaleMiddle AgedMouthMouth MucosaRNA, Ribosomal, 16SSalivaSjogren's SyndromeTongueRNA, Ribosomal, 16S

Identifiers

PMID29445174
PMCPMC5813034
OpenAlexW2801640552

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.