Evidence map›Paper›PMID 31527555›Full record

ArticleNutrients2019

Potential Oral Health Care Agent from Coffee Against Virulence Factor of Periodontitis.

Sing-Hua Tsou, Suh-Woan Hu, Jaw-Ji Yang, Min Yan, Yuh-Yih Lin

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 13% 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 41 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Sing-Hua TsouInstitute of Oral Sciences, College of Oral Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.
Suh-Woan HuInstitute of Oral Sciences, College of Oral Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.
Jaw-Ji YangInstitute of Oral Sciences, College of Oral Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.
Min YanInstitute of Oral Sciences, College of Oral Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.
Yuh-Yih LinSchool of Dentistry, College of Oral Medicine, Chung Shan Medical University, Taichung 40201, Taiwan. yuhyih@csmu.edu.tw.
Chung Shan Medical University · TWChung Shan Medical University Hospital · TW

Funding

National Science Council NSC 102-2314-B-040 -013 -MY3
6 · The paper itself

Abstract

backgroundCoffee is a major dietary source of polyphenols. Previous research found that coffee had a protective effect on periodontal disease. In this study, we aimed to investigate whether coffee extract and its primary phenolic acid, chlorogenic acid, affect the growth and protease activity of a periodontopathogen Porphyromonas gingivalis (P. gingivalis).

methodsCoffee extract and chlorogenic acid were prepared by a two-fold serial dilution. The turbid metric test and plate count method were used to examine the inhibitory effects of chlorogenic acid on P. gingivalis. The time-kill assay was used to measure changes in the viability of P. gingivalis after exposure to chlorogenic acid for 0-24 h. The protease activity of P. gingivalis was analyzed using the optical density of a chromogenic substrate.

resultsAs a result, the minimum inhibitory concentration (MIC) of chlorogenic acid was 4 mg/mL, and the minimum bactericidal concentration was 16 mg/mL. Chlorogenic acid at concentrations above MIC resulted in a longer-lasting inhibitory effect on P. gingivalis viability and significantly reduced associated protease activity. The coffee extract showed antibacterial activity as observed by the disk diffusion test, whereas these inhibitory effects were not affected by different roast degrees of coffee.

conclusionsCollectively, our novel findings indicate that chlorogenic acid not only has antimicrobial activity but also reduced the protease activity of P. gingivalis. In addition, coffee extract inhibits the proliferation of P. gingivalis, which may partly be attributed to the effect of chlorogenic acid.

Indexed as

Anti-Bacterial AgentsBacterial ProteinsBacteroidaceae InfectionsChlorogenic AcidCoffeaDisk Diffusion Antimicrobial TestsMicrobial ViabilityPeptide HydrolasesPeriodontitisPlant ExtractsPorphyromonas gingivalisSeedsTime FactorsVirulence FactorsAnti-Bacterial AgentsBacterial ProteinsChlorogenic AcidPeptide HydrolasesPlant ExtractsVirulence Factorschlorogenic aciddisk-diffusion testPorphyromonas gingivalisprotease activitytime-kill test

Identifiers

PMID31527555
PMCPMC6769475
OpenAlexW2972327354

What OpenQuestion holds

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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.