Evidence map›Paper›PMID 33174294›Full record

ArticleMolecular oral microbiology2021

Modified SHI medium supports growth of a disease-state subgingival polymicrobial community in vitro.

Eleanor I Lamont, Archita Gadkari, Kristopher A Kerns, Thao T To, Diane Daubert, Georgios Kotsakis, Batbileg Bor, Xuesong He, Jeffrey S McLean

Open access · hybridAbstract read
In one paragraph

Article in Molecular oral microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
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  6. Review
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  14. Localized microbially induced inflammation influences distant healthy tissues in the human oral cavity.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. Article
  17. Effects of the Probiotic,Animals : an open access journal from MDPI · 2022
    Article
  18. Review
  19. Succession of oral bacterial colonizers on dental implant materials: An in vitro biofilm model.Dental materials : official publication of the Academy of Dental Materials · 2022
    Article
  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

9 authors at 3 institutions in 1 country.

Eleanor I LamontDepartment of Periodontics, University of Washington, Seattle, WA, USA.ORCID 0000-0001-6537-7755
Archita GadkariDepartment of Periodontics, University of Washington, Seattle, WA, USA.
Kristopher A KernsDepartment of Periodontics, University of Washington, Seattle, WA, USA.ORCID 0000-0002-4380-0062
Thao T ToDepartment of Periodontics, University of Washington, Seattle, WA, USA.ORCID 0000-0002-7416-6201
Diane DaubertDepartment of Periodontics, University of Washington, Seattle, WA, USA.ORCID 0000-0002-7307-4102
Georgios KotsakisDepartment of Periodontics, University of Texas Health Science Center, San Antonio, TX, USA.ORCID 0000-0002-8635-9422
Batbileg BorDepartment of Microbiology, The Forsyth Institute, Cambridge, MA, USA.ORCID 0000-0002-1797-1730
Xuesong HeDepartment of Microbiology, The Forsyth Institute, Cambridge, MA, USA.ORCID 0000-0002-3333-9188
Jeffrey S McLeanDepartment of Periodontics, University of Washington, Seattle, WA, USA.ORCID 0000-0001-9934-5137
University of Washington · USHarvard University · USThe University of Texas Health Science Center at San Antonio · US

Funding

Comprehensive Training in Inter-Disciplinary Oral Health ResearchT90DE021984 · NIDCR · UNIVERSITY OF WASHINGTON · PI Robert Aaron Cornell · 2012 to 2026
$7.9M
Domestication and characterization of TM7-the most elusive oral phylumR01DE023810 · NIDCR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Xuesong He, Jeffrey Scott McLean · 2014 to 2026
$6.6M
Studying the Protective Effects of Normal Oral FloraR01DE026186 · NIDCR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HE, XUESONG, MCLEAN, JEFFREY SCOTT · 2016 to 2020
$2.1M
Molecular and pathogenic study of an oral TM7 strain, the first cultivated ultra-small bacteriumR00DE027719 · NIDCR · ADA FORSYTH INSTITUTE, INC. · PI BOR, BATBILEG · 2020 to 2022
$747k
Systematic approach to explore the microbial interactomeR21DE027199 · NIDCR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LUX, RENATE, MCLEAN, JEFFREY SCOTT · 2017 to 2018
$441k
Molecular and pathogenic study of an oral TM7 strain, the first cultivated ultra-small bacteriumK99DE027719 · NIDCR · ADA FORSYTH INSTITUTE, INC. · PI BOR, BATBILEG · 2018 to 2019
$268k
NIDCR NIH HHS K99 DE027719NIDCR NIH HHS R00 DE027719NIDCR NIH HHS R01 DE023810NIDCR NIH HHS R01 DE026186NIDCR NIH HHS R21 DE027199NIDCR NIH HHS T90 DE021984
6 · The paper itself

Abstract

Developing a laboratory model of oral polymicrobial communities is essential for in vitro studies of the transition from healthy to diseased oral plaque. SHI medium is an enriched growth medium capable of supporting in vitro biofilms with similar diversity to healthy supragingival inocula; however, this medium does not maintain the diversity of gram-negative bacteria more associated with subgingival plaque. Here, we systematically modified SHI medium components to investigate the impacts of varying nutrients and develop a medium capable of supporting a specific disease-state subgingival community. A diseased subgingival plaque sample was inoculated in SHI medium with increasing concentrations of sucrose (0%, 0.1%, 0.5%), fetal bovine serum (FBS) (0%, 10%, 20%, 30%, 50%), and mucin (0.1, 2.5, 8.0 g/L) and grown for 48 hrs, then the 16S rRNA profiles of the resulting biofilms were examined. In total, these conditions were able to capture 89 of the 119 species and 43 of the 51 genera found in the subgingival inoculum. Interestingly, biofilms grown in high sucrose media, although dominated by acidogenic Firmicutes with a low final pH, contained several uncultured taxa from the genus Treponema, information that may aid culturing these periodontitis-associated fastidious organisms. Biofilms grown in a modified medium (here named subSHI-v1 medium) with 0.1% sucrose and 10% FBS had a high diversity closest to the inoculum and maintained greater proportions of many gram-negative species of interest from the subgingival periodontal pocket (including members of the genera Prevotella and Treponema, and the Candidate Phyla Radiation phylum Saccharibacteria), and therefore best represented the disease community.

Indexed as

Dental PlaquePeriodontitisBiofilmsHumansPeriodontal PocketRNA, Ribosomal, 16SRNA, Ribosomal, 16SIn vitro biofilm modelperiodontitisSHI-mediasubgingival microbiota

Identifiers

PMID33174294
PMCPMC7984074
OpenAlexW3102211465

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Registered trials

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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.