Table 1

Elastase activity of RA synovial fluids at a 1/8 dilution after addition of 1000 mU/ml porcine pancreatic elastase showing the effects of methylamine or chloramine T pretreatment

Pretreatment of synovial fluid aliquotsElastase activity
Untreated369 (18)
Methylamine (200 mM) 43 (5)***
Chloramine T (200 mM)725 (21)***
  • Means (SEM), n=12. ***p<0.001 significant difference in activities of pretreated synovial fluids to untreated synovial fluids (paired Student’s t test).