Evidence map›Paper›PMID 32541791›Full record

ArticleScientific reports2020

A longitudinal study of the development of the saliva microbiome in infants 2 days to 5 years compared to the microbiome in adolescents.

Pernilla Lif Holgerson, Anders Esberg, Andreas Sjödin, Christina E West, Ingegerd Johansson

Open access · goldAbstract readComparative Study
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 3 pooled it
5.1field-weighted citation impact, top 4% 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

52 citing papers in PubMed, 3 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Meta-analysis of caries microbiome studies can improve upon disease prediction outcomes.APMIS : acta pathologica, microbiologica, et immunologica Scandinavica · 2022
    Pooled it
  3. Exploring Oral Microbiome in Healthy Infants and Children: A Systematic Review.International journal of environmental research and public health · 2022
    Pooled it
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  6. [Age-Related Changes in the Oral Microbiota].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 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

5 authors at 2 institutions in 1 country.

Pernilla Lif Holgerson *Department of Odontology, Section of Pediatric Dentistry, Umeå University, SE-90187, Umeå, Sweden. pernilla.lif@umu.se.
Anders Esberg *Department of Odontology, Section of Cariology, Umeå University, SE-901 87, Umeå, Sweden.
Andreas SjödinDivision of CBRN Defence and Security, Swedish Defence Research Agency, SE-906 21, Umeå, Sweden.
Christina E WestDepartment of Clinical Sciences, Pediatrics, Umeå University, SE-90187, Umeå, Sweden.
Ingegerd JohanssonDepartment of Odontology, Section of Cariology, Umeå University, SE-901 87, Umeå, Sweden.
Umeå University · SESwedish Defence Research Agency · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Understanding oral microbiota programming attracts increasing interest due to its importance for oral health and potential associations with systemic diseases. Here the oral microbiota was longitudinally characterized in children from 2 days (n = 206) to 5 years of age and in young adults (n = 175) by sequencing of the v3-v4 region of the 16S rRNA gene from saliva extracted DNA. Alpha diversity increased by age, with 2-day- and 3-month-old infants in one sub-group, and 18-month- and 3-year-old children in another. Firmicutes decreased up to 3 years of age, whereas Proteobacteria, Actinobacteria, Bacteroidetes and Fusobacteria abundances increased. Abiotrophia, Actinomyces, Capnocytophaga, Corynebacterium, Fusobacterium, Kingella, Leptotrichia, Neisseria and Porphyromonas appeared from 18-months of age. This was paralleled by expansions in the core microbiome that continued up to adulthood. The age-related microbiota transformation was paralleled by functional alterations, e.g., changed metabolic pathways that reflected e.g., breastfeeding and increasing proportions of anaerobic species. Oral microbiotas differed by feeding mode and weakly by mode of delivery, but not gender, pacifier use or cleaning method or probiotic intake. The study shows that the saliva microbiota is diverse 2 days after birth and under transformation up to 5 years of age and beyond, with fluctuations possibly reflecting age-related environmental influences.

Indexed as

MicrobiotaAdolescentAge FactorsChild, PreschoolCross-Sectional StudiesDNA, BacterialFemaleHumansInfantInfant, NewbornLongitudinal StudiesMaleSalivaSequence Analysis, DNADNA, Bacterial

Identifiers

PMID32541791
PMCPMC7295743
OpenAlexW3034615367

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.