Evidence map›Paper›PMID 32350164›Full record

ArticleMicrobes and environments2020

Biofilm Formation by Streptococcus mutans is Enhanced by Indole via the Quorum Sensing Pathway.

Tomohiro Inaba, Nozomu Obana, Hiroshi Habe, Nobuhiko Nomura

Open access · diamondAbstract read
In one paragraph

Article in Microbes and environments, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

  1. Roles of Indole and Its Derivative in ModulatingInternational journal of molecular sciences · 2026
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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

4 authors at 3 institutions in 2 countries.

Tomohiro InabaEnvironmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST).
Nozomu ObanaTransborder Medical Research Center, Faculty of Medicine, University of Tsukuba.
Hiroshi HabeEnvironmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST).
Nobuhiko NomuraFaculty of Life and Environmental Sciences, University of Tsukuba.
University of Tsukuba · JPInstitute for Environmental Management · USNational Institute of Advanced Industrial Science and Technology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Interspecies interactions among oral microorganisms in the pathogenic biofilms causing dental caries have not yet been elucidated in detail. We herein demonstrated that indole and its derivatives induced biofilm formation by Streptococcus mutans. Indole is an intercellular signaling molecule that is produced by oral bacteria other than S. mutans. The amounts of biofilm and extracellular DNA were significantly increased by the addition of indole and 4-hydroxyindole (4-HI). An examination with quorum sensing mutants showed that the induction of biofilm formation by indole and 4-HI required a quorum sensing system. These results suggest that this intercellular signaling molecule plays a role in pathogenic biofilm formation.

Indexed as

Quorum SensingBiofilmsDNA, BacterialIndolesMutationStreptococcus mutans4-hydroxyindoleDNA, BacterialindoleIndolesBiofilmindoleQuorum sensingStreptococcus mutans

Identifiers

PMID32350164
PMCPMC7308578
OpenAlexW3022366037

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.