Evidence map›Paper›PMID 25001578›Full record

ArticleCellular and molecular life sciences : CMLS2015

Neuraminidase-producing oral mitis group streptococci potentially contribute to influenza viral infection and reduction in antiviral efficacy of zanamivir.

Noriaki Kamio, Kenichi Imai, Kazufumi Shimizu, Marni E Cueno, Muneaki Tamura, Yuko Saito, Kuniyasu Ochiai

Open access · greenAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

19 citing papers in PubMed, 37 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

7 authors at 2 institutions in 1 country.

Noriaki KamioDepartment of Microbiology, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan.
Kenichi Imai
Kazufumi Shimizu
Marni E Cueno
Muneaki Tamura
Yuko Saito
Kuniyasu Ochiai
Nihon University · JPKobe University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Influenza is a serious respiratory disease among immunocompromised individuals, such as the elderly, and its prevention is an urgent social issue. Influenza viruses rely on neuraminidase (NA) activity to release progeny viruses from infected cells and spreading the infection. NA is, therefore, an important target of anti-influenza drugs. A causal relationship between bacteria and influenza virus infection has not yet been established, however, a positive correlation between them has been reported. Thus, in this study, we examined the biological effects of oral mitis group streptococci, which are predominant constituents of human oral florae, on the release of influenza viruses. Among them, Streptococcus oralis ATCC 10557 and Streptococcus mitis ATCC 6249 were found to exhibit NA activity and their culture supernatants promoted the release of influenza virus and cell-to-cell spread of the infection. In addition, culture supernatants of these NA-producing oral bacteria increased viral M1 protein expression levels and cellular ERK activation. These effects were not observed with culture supernatants of Streptococcus sanguinis ATCC 10556 which lacks the ability to produce NA. Although the NA inhibitor zanamivir suppressed the release of progeny viruses from the infected cells, the viral release was restored upon the addition of culture supernatants of NA-producing S. oralis ATCC 10557 or S. mitis ATCC 6249. These findings suggest that an increase in the number of NA-producing oral bacteria could elevate the risk of and exacerbate the influenza infection, hampering the efficacy of viral NA inhibitor drugs.

Indexed as

Analysis of VarianceAntiviral AgentsBlotting, WesternFluorescent Antibody Technique, IndirectHumansInfluenza, HumanNeuraminidaseStreptococcus mitisStreptococcus oralisZanamivirAntiviral AgentsNeuraminidaseZanamivir

Identifiers

PMID25001578
PMCPMC11113501
OpenAlexW1983583541

What OpenQuestion holds

Textmetadata
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.