title: Group II phospholipase A2 in synovial fluid and serum in acute arthritis.
abstract: Increased catalytic activity of synovial-type (group II) phospholipase A2 (syn-PLA2), has been associated with cartilage erosions in rheumatoid arthritis and osteoarthritis. The catalytic activity of phospholipase A2 and the concentration of syn-PLA2 were measured in a prospective study in synovial fluid (SF) samples from 66 patients with acute knee joint effusion. The median (range) of the concentration of syn-PLA2 in SF was 210 micrograms/l (80-1480 micrograms/l) in culture-positive septic arthritis, 460 micrograms/l (270-1040 micrograms/l) in reactive arthritis, 780 micrograms/l (120-2710 micrograms/l) in osteoarthritis and 230 micrograms/l (80-1400 micrograms/l) in traumatic joint effusions. High concentrations of syn-PLA2 are found also in SF of patients with arthritides not expected to lead to permanent destruction of cartilage.
authors.affiliation: Department of Surgery, University of Turku, Finland.
authors.forename: P
authors.initials: P
authors.lastname: Kortekangas
authors.forename: H T
authors.initials: HT
authors.lastname: Aro
authors.forename: T J
authors.initials: TJ
authors.lastname: Nevalainen
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001168:Arthritis / Q000378:metabolism*; D002384:Catalysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009994:Osmolar Concentration; D010741:Phospholipases A / Q000097:blood / Q000378:metabolism*; D054467:Phospholipases A2; D013582:Synovial Fluid / Q000378:metabolism*
chemical_list: D010741:Phospholipases A; D054467:Phospholipases A2