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Dysbiosis of Oral Microbiota Associated with Palmoplantar Pustulosis

Kageyama, Yasunari, Shimokawa, Yutaka, Kawauchi, Kimihiko, Morimoto, Masafumi, Aida, Koichi, Akiyama, Tetsu, Nakamura, Tsutomu·2021·Dermatology
DOI 10.1159/000511622
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Abstract

Background: Dysbiosis 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/Methods: To 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. Results: We 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. Conclusion: Our 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.

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Fig. 1 Flowchart of the Materials and Methods.
Fig. 1 Flowchart of the Materials and Methods.CC-BY-NC · From the PDF
Fig. 2 α- and β-Diversity comparisons of the oral microbiomes of the PPP and HC groups. a-d α-Diversity comparisons based on the species richness ( a ), species evenness ( b ), and species diversity ( c , d ). The mean values and outliers are shown by cross marks and open circles, respectively. Species richness, defined as the number of species identified in each sample, is the simplest measure of biodiversity. Pielou's evenness is a good measure of 'relative evenness' for each community. Species diversity (Shannon index and
Fig. 2 α- and β-Diversity comparisons of the oral microbiomes of the PPP and HC groups. a-d α-Diversity comparisons based on the species richness ( a ), species evenness ( b ), and species diversity ( c , d ). The mean values and outliers are shown by cross marks and open circles, respectively. Species richness, defined as the number of species identified in each sample, is the simplest measure of biodiversity. Pielou's evenness is a good measure of 'relative evenness' for each community. Species diversity (Shannon index andCC-BY-NC · From the PDF
(For legend see next page.)
(For legend see next page.)CC-BY-NC · From the PDF
Fig. 4 Taxonomic composition analysis of the oral microbiomes of the PPP and HC groups at the genus level. a Comparisons of the genus-level abundance within Proteobacteria of PPP and HC are shown in bar plots. The genera representing < 0.1% of the total oral microbes of HC are included in 'others.' b-e Comparisons of the
Fig. 4 Taxonomic composition analysis of the oral microbiomes of the PPP and HC groups at the genus level. a Comparisons of the genus-level abundance within Proteobacteria of PPP and HC are shown in bar plots. The genera representing < 0.1% of the total oral microbes of HC are included in 'others.' b-e Comparisons of theCC-BY-NC · From the PDF
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CC-BY-NC · From the PDF

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Metadata

Authors
Kageyama, Y., Shimokawa, Y., Kawauchi, K., Morimoto, M., Aida, K., Akiyama, T., & Nakamura, T.
Venue
Dermatology
Publisher
S. Karger AG
Published
2020-12-04
Volume
237
Issue
3
Pages
347-356
ISSN
  • 1018-8665
  • 1421-9832
DOI
10.1159/000511622
Cited by
9
References
2
Language
en
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CoChat. (2026). Citation check: Dysbiosis of Oral Microbiota Associated with Palmoplantar Pustulosis. https://app.cochat.ai/papers/10.1159/000511622
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Kageyama, Y., Shimokawa, Y., Kawauchi, K., Morimoto, M., Aida, K., Akiyama, T., & Nakamura, T. (2021). Dysbiosis of Oral Microbiota Associated with Palmoplantar Pustulosis. Dermatology. https://doi.org/10.1159/000511622