Evidence map›Paper›PMID 33279897›Full record

Observational studyDermatology (Basel, Switzerland)2021

Dysbiosis of Oral Microbiota Associated with Palmoplantar Pustulosis.

Yasunari Kageyama, Yutaka Shimokawa, Kimihiko Kawauchi, Masafumi Morimoto, Koichi Aida, Tetsu Akiyama, Tsutomu Nakamura

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Dermatology (Basel, Switzerland), 2021. 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
0.8field-weighted citation impact, top 27% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Review
  2. Saliva assay: a call for methodological standardization.Journal of periodontal & implant science · 2025
    Review
  3. Article
  4. Microbiota of Saliva: A Non-invasive Diagnostic Tool.Indian journal of microbiology · 2024
    Review
  5. Article
  6. Review
  7. Article
  8. Review
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.

Yasunari KageyamaTakanawa Clinic, Minato-ku, Tokyo, Japan.
Yutaka ShimokawaTakanawa Clinic, Minato-ku, Tokyo, Japan.
Kimihiko KawauchiTakanawa Clinic, Minato-ku, Tokyo, Japan.
Masafumi MorimotoTakanawa Clinic, Minato-ku, Tokyo, Japan.
Koichi AidaTakanawa Clinic, Minato-ku, Tokyo, Japan.
Tetsu AkiyamaLaboratory of Molecular and Genetic Information, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan.
Tsutomu NakamuraLaboratory of Molecular and Genetic Information, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan, nakamura@iqb.u-tokyo.ac.jp.
Minamiaoyama Eye Clinic · JPThe University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDysbiosis of oral microbiota is implicated not only in oral inflammatory lesions, but also in a variety of extraoral diseases. The etiology of palmoplantar pustulosis (PPP) remains unclear; however, it has been suggested that chronic inflammation caused by periodontopathic bacterial infection may play a role. OBJECTIVES/

methodsTo determine whether patients with PPP have altered diversity and composition of oral microbiota, we conducted the 16S rDNA analysis using saliva samples collected from 21 outpatients with PPP and 10 healthy individuals.

resultsWe found that the proportion of bacteria in the phylum Proteobacteria was significantly lower in PPP patients (p = 0.025). At the genus level, patients with PPP had a significantly lower abundance of Neisseria (p = 0.014), which best accounted for the observed decrease in Proteobacteria. We also identified multiple minor genera and species that were represented at a significantly higher level in the PPP group, several of which have been associated with periodontal diseases.

conclusionOur results suggest a possible link between PPP and dysbiosis of oral microbiota, particularly the lower abundance of Neisseria, the most predominant genus of Proteobacteria in healthy oral microbiota. Probiotics that improves oral dysbiosis may be beneficial for patients with PPP as an adjunctive therapy.

Indexed as

MicrobiotaCase-Control StudiesDysbiosisHumansMouthPsoriasisSalivaDysbiosisOral microbiomePalmoplantar pustulosisPeriodontal diseases

Identifiers

PMID33279897
PMCPMC8117382
OpenAlexW3111954690

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.