Oral microbiota alterations in radiographic axial spondyloarthritis - Report - MDSpire

Oral microbiota alterations in radiographic axial spondyloarthritis

  • By

  • Aigerim Abuova

  • Assel Meiramova

  • Yekaterina Zueva

  • Jeannette Kunz

  • Laura Chulenbayeva

  • Argul Issilbayeva

  • Zharkyn Jarmukhanov

  • Elizaveta Vinogradova

  • Bayan Ainabekova

  • Samat Kozhakhmetov

  • Almagul Kushugulova

  • May 12, 2026

  • 0 min

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Clinical Report: Changes in Oral Microbiome Among Patients with r-axSpA

Overview

This study investigates the oral microbiome alterations in patients with radiographic axial spondyloarthritis (r-axSpA), revealing significant differences in microbial composition compared to healthy controls. Key findings suggest a potential link between oral dysbiosis and systemic inflammation in r-axSpA patients.

Background

Radiographic axial spondyloarthritis (r-axSpA) is a chronic inflammatory disease that primarily affects the axial skeleton and can lead to significant disability. Understanding the role of the oral microbiome in r-axSpA is crucial, as dysbiosis may contribute to systemic inflammation and disease progression. This study aims to fill the gap in knowledge regarding the oral microbiome's impact on r-axSpA.

Data Highlights

GroupMicrobial TaxaAssociation
r-axSpAActinobacteria, Spirochaetes, SynergistetesIncreased abundance of Actinomyces and Selenomonas
r-axSpAPorphyromonas gingivalisMore abundant in r-axSpA group
r-axSpAPorphyromonas, SaccharimonadaceaeCorrelated with severity of sacroiliitis and ankylosis

Key Findings

  • Patients with r-axSpA exhibited alterations in oral microbiome composition compared to healthy controls.
  • Alpha diversity of the oral microbiome remained largely comparable between groups.
  • Key periodontal pathogens, including Porphyromonas gingivalis, were more abundant in r-axSpA patients.
  • Increased abundance of specific taxa correlated with systemic pro-inflammatory cytokines like IL-17.
  • Oral dysbiosis may play a role in modulating systemic inflammation in r-axSpA.

Clinical Implications

The findings suggest that clinicians should consider the oral microbiome as a potential factor in managing r-axSpA. Monitoring oral health and addressing dysbiosis may provide additional avenues for therapeutic intervention and inflammation control in these patients.

Conclusion

This study highlights the distinct oral microbiome profile in r-axSpA patients and its potential implications for systemic inflammation. Further research is warranted to explore the therapeutic potential of targeting oral dysbiosis in r-axSpA management.

Related Resources & Content

  1. Clinical Rheumatology, 2023 -- Prevalence and risk factors of difficult-to-treat axial spondyloarthritis
  2. Clinical Rheumatology, 2023 -- The Relationship Between Anaemia and Disease Activity in Axial Spondyloarthritis
  3. JAMA Network Open, 2023 -- Vunakizumab for Radiographic Axial Spondyloarthritis
  4. Rheumatology, 2025 -- 2025 British Society for Rheumatology guideline for the treatment of axial spondyloarthritis
  5. Journal of Gastroenterology — Endoscopic Brush Sample Analysis Reveals Mucosal Dysbiosis in Patients with Inflammatory Bowel Disease
  6. 2025 British Society for Rheumatology guideline for the treatment of axial spondyloarthritis with biologic and targeted synthetic DMARDs | Rheumatology | Oxford Academic
  7. Long-term safety and efficacy of bimekizumab in axial spondyloarthritis: 2-year results from two phase 3 studies - PubMed
  8. Age- and region-specific gut microbiota dysbiosis in axial spondyloarthritis: a systematic review and meta-analysis - PMC

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