Evidence map›Paper›PMID 17045561›Full record

ArticleArchives of oral biology2007

Physiological and serological variation in Streptococcus mitis biovar 1 from the human oral cavity during the first year of life.

Jennifer L Kirchherr, George H Bowden, Michael F Cole, Yoshiaki Kawamura, Dorothy A Richmond, Michael J Sheridan, Katherine A Wirth

Abstract read
In one paragraph

Article in Archives of oral biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

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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

8 citing papers in PubMed.

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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.

Jennifer L KirchherrDepartment of Microbiology and Immunology, Georgetown University Medical Center, Washington, DC, USA.
George H Bowden
Michael F Cole
Yoshiaki Kawamura
Dorothy A Richmond
Michael J Sheridan
Katherine A Wirth

Funding

SALIVARY IMMUNE RESPONSE TO COMMENSAL ORAL BACTERIAR01DE008178 · NIDCR · GEORGETOWN UNIVERSITY · PI COLE, MICHAEL F. · 1989 to 2002
$700k
NIDCR NIH HHS DE08178NIDCR NIH HHS R01 DE008178NIDCR NIH HHS R01 DE008178-12
6 · The paper itself

Abstract

objectiveThe purpose of the study was to explore the physiological and antigenic diversity of a large number of Streptococcus mitis biovar 1 isolates in order to begin to determine whether these properties contribute to species persistence.

designS. mitis biovar 1 was collected from four infants from birth to the first year of age. At each of eight to nine visits, 60 isolates each were obtained from the cheeks, tongue and incisors (once erupted) yielding 4440 in total. These were tested for production of neuraminidase, beta1-N-acetylglucosaminidase, beta1-N-acetylgalactosaminidase, IgA1 protease and amylase-binding. Antigenic diversity was examined by ELISA and Western immunoblotting using antisera raised against S. mitis biovar 1 NCTC 12261(T) and SK145.

resultsThree thousand three hundred and thirty (75%) of the isolates were identified as S. mitis biovar 1 and 3144 (94.4%) could be divided into four large phenotypic groups based on glycosidase production. Fifty-four percent of the isolates produced IgA1 protease, but production was disproportionate among the phenotypes. Between one-third and one-half of the strains of each phenotype bound salivary alpha-amylase. Antisera against strains NCTC 12261(T) and SK145 displayed different patterns of reactivity with randomly selected representatives of the four phenotypes.

conclusionsS. mitis biovar 1 is physiologically and antigenically diverse, properties which could aid strains in avoiding host immunity and promote re-colonization of a habitat or transfer to a new habitat.

Indexed as

alpha-AmylasesAntigens, BacterialBlotting, WesternCell WallEnzyme-Linked Immunosorbent AssayFemaleFermentationHumansImmunoglobulin AInfantInfant, NewbornMaleMouthPhenotypeSalivaSerine Endopeptidasesalpha-AmylasesAntigens, BacterialIgA-specific serine endopeptidaseImmunoglobulin ASerine Endopeptidases

Identifiers

PMID17045561
PMCPMC1861816

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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.