Evidence map›Paper›PMID 25475081›Full record

ArticleJournal of oral microbiology2014

Comparing the cariogenic species Streptococcus sobrinus and S. mutans on whole genome level.

Georg Conrads, Johannes J de Soet, Lifu Song, Karsten Henne, Helena Sztajer, Irene Wagner-Döbler, An-Ping Zeng

Open access · goldAbstract read
In one paragraph

Article in Journal of oral microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.2field-weighted citation impact, top 9% 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, 94 citations in OpenAlex.

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  13. Oral streptococci: modulators of health and disease.Frontiers in cellular and infection microbiology · 2024
    Review
  14. Article
  15. Article
  16. Review
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  18. Review
  19. Probiotics: Dawn of a New Era in Dental Caries Management.Journal of pharmacy & bioallied sciences · 2022
    Review
  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

7 authors at 5 institutions in 2 countries.

Georg ConradsDivision of Oral Microbiology and Immunology, Department of Operative and Preventive Dentistry & Periodontology, RWTH Aachen University Hospital, Aachen, Germany; gconrads@ukaachen.de.
Johannes J de SoetDepartment of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands.
Lifu SongInstitute of Bioprocess and Biosystems, Technical University Hamburg, Harburg, Germany.
Karsten HenneDivision of Oral Microbiology and Immunology, Department of Operative and Preventive Dentistry & Periodontology, RWTH Aachen University Hospital, Aachen, Germany.
Helena SztajerHelmholtz-Centre for Infection Research, Group Microbial Communication, Division of Microbial Pathogenesis, Braunschweig, Germany.
Irene Wagner-DöblerHelmholtz-Centre for Infection Research, Group Microbial Communication, Division of Microbial Pathogenesis, Braunschweig, Germany.
An-Ping ZengInstitute of Bioprocess and Biosystems, Technical University Hamburg, Harburg, Germany.
Hamburg University of Technology · DEHelmholtz Centre for Infection Research · DEAcademic Center for Dentistry Amsterdam · NLRWTH Aachen University · DEUniversitätsklinikum Aachen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTwo closely related species of mutans streptococci, namely Streptococcus mutans and Streptococcus sobrinus, are associated with dental caries in humans. Their acidogenic and aciduric capacity is directly associated with the cariogenic potential of these bacteria. To survive acidic and temporarily harsh conditions in the human oral cavity with hundreds of other microbial co-colonizers as competitors, both species have developed numerous mechanisms for adaptation.

objectivesThe recently published novel genome information for both species is used to elucidate genetic similarities but especially differences and to discuss the impact on cariogenicity of the corresponding phenotypic properties including adhesion, carbohydrate uptake and fermentation, acid tolerance, signaling by two component systems, competence, and oxidative stress resistance.

conclusionsS. sobrinus can down-regulate the SpaA-mediated adherence to the pellicle. It has a smaller number of two-component signaling systems and bacteriocin-related genes than S. mutans, but all or even more immunity proteins. It lacks the central competence genes comC, comS, and comR. There are more genes coding for glucosyltransferases and a novel energy production pathway formed by lactate oxidase, which is not found in S. mutans. Both species show considerable differences in the regulation of fructan catabolism. However, both S. mutans and S. sobrinus share most of these traits and should therefore be considered as equally virulent with regard to dental caries.

Indexed as

adhesionbacteriocinscariogenicitycomparative genomicscompetenceMutans streptococcisugar metabolismtwo-component-systems

Identifiers

PMID25475081
PMCPMC4256546
OpenAlexW2026686057

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.