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Synovial Fluid Analysis to Identify Osteoarthritis
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Alpha-mannosidase activity in synovial fluid.

B A Bartholomew1, A L Perry

  • 1Dept. of Internal Medicine, Section of Rheumatic Diseases, University of Colorado Medical Center, Denver, Colorado, USA.

Scandinavian Journal of Rheumatology
|February 11, 2010
PubMed
Summary

A new microassay accurately measures alpha-mannosidase in synovial fluid. Enzyme levels correlate with inflammation and cell counts in joint disease, offering a quantitative diagnostic tool.

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Area of Science:

  • Biochemistry
  • Rheumatology
  • Enzymology

Background:

  • Synovial fluid analysis is crucial for diagnosing joint diseases.
  • Quantifying inflammatory markers in synovial fluid aids in disease assessment.
  • Lysosomal glycosidases, like alpha-mannosidase, are implicated in inflammatory processes.

Purpose of the Study:

  • To develop and validate a microassay for synovial fluid alpha-mannosidase activity.
  • To investigate the correlation between alpha-mannosidase activity and indicators of joint inflammation.
  • To explore the potential of alpha-mannosidase as a biomarker for arthropathic conditions.

Main Methods:

  • Development of a microassay technique for alpha-mannosidase activity measurement.
  • Analysis of 184 synovial fluid samples from patients with diverse arthropathic conditions.
  • Correlation analysis between enzyme activity, synovial fluid cell count, and inflammation markers.

Main Results:

  • The microassay demonstrated reliable measurement of synovial fluid alpha-mannosidase.
  • A significant correlation was observed between enzyme activity and synovial fluid cell count.
  • Enzyme activity closely correlated with the degree of inflammation in various joint diseases.

Conclusions:

  • Synovial fluid alpha-mannosidase activity can be reliably quantified using the developed microassay.
  • Alpha-mannosidase activity serves as a quantitative indicator of inflammation in joint diseases.
  • Evaluation of alpha-mannosidase and other lysosomal glycosidases offers a valuable method for assessing inflammatory joint disease.

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