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Related Experiment Videos

Enthesitis in spondyloarthropathy.

D McGonagle1, M A Khan, H Marzo-Ortega

  • 1Department of Rheumatology, University of Leeds, UK. D.G.McGonagle@leeds.ac.uk

Current Opinion in Rheumatology
|July 20, 1999
PubMed
Summary

Enthesitis, inflammation where tendons attach to bone, is key in spondyloarthropathy. Advanced imaging reveals its widespread presence, impacting joint inflammation and bone changes in these conditions.

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Area of Science:

  • Rheumatology
  • Immunology
  • Radiology

Background:

  • Enthesitis, inflammation at bone-tendon insertions, is characteristic of spondyloarthropathies.
  • The exact inflammatory, microbiologic, and immunologic events at the enthesis are poorly understood due to its inaccessibility.
  • Recent research highlights the commonality and potential significance of enthesitis in spondyloarthropathies.

Purpose of the Study:

  • To explore the role and characteristics of enthesitis in spondyloarthropathies.
  • To investigate the implications of enthesitis for synovitis and bone changes.
  • To examine the contribution of specific molecular pathways to entheseal pathology.

Main Methods:

  • Review of recent magnetic resonance imaging (MRI) studies on enthesitis in spondyloarthropathies.

Related Experiment Videos

  • Analysis of findings from transgenic animal models overexpressing key inflammatory or developmental proteins.
  • Correlation of imaging findings with clinical manifestations and known disease mechanisms.

    • Main Results:

    • MRI studies demonstrate enthesitis is ubiquitous in spondyloarthropathies, particularly near synovial joints.
    • Enthesitis lesions can be extensive, potentially explaining diffuse bone changes observed in patients.
    • Transgenic models with overexpression of tumor necrosis factor-alpha or bone morphogenetic protein-6 exhibit entheseal-associated polyarthropathy.

    Conclusions:

    • Enthesitis is a critical skeletal manifestation in spondyloarthropathies, influencing synovitis and bone pathology.
    • Advanced imaging techniques like MRI are crucial for defining the extent and impact of enthesitis.
    • Molecular pathways involving TNF-alpha and BMP-6 are implicated in the pathogenesis of enthesitis-associated arthritis.