title: Change of prostaglandin E level in joint fluids after treatment with flurbiprofen in patients with rheumatoid arthritis and osteoarthritis.
abstract: The prostaglandin E (PGE) level in the knee joint fluid was determined by radioimmunoassay before and after anti-inflammatory therapy with flurbiprofen in 8 patients with rheumatoid arthritis (RA) and 4 patients with osteoarthritis (OA). The level of PGE in RA joint fluids before the anti-inflammatory treatment was 9.5-1.2 ng/ml and in proportion with the leucocyte count in the joint fluid. A marked decrease of the PGE level was attained with flurbiprofen treatment in 4 patients whose initial PGE levels had been higher than 3.2 ng/ml, while 4 patients with lower PGE levels, namely, 1.4-1.2 ng/ml, did not respond to the drug treatment. In all the OA patients the PGE levels was no higher than 1.5 ng/ml and refractory to the anti-inflammatory therapy.
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000188:drug therapy* / Q000378:metabolism; D005260:Female; D005480:Flurbiprofen / Q000627:therapeutic use*; D006801:Humans; D007958:Leukocyte Count; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000188:drug therapy* / Q000378:metabolism; D011422:Propionates / Q000627:therapeutic use*; D011458:Prostaglandins E / Q000032:analysis*; D013582:Synovial Fluid / Q000032:analysis*
chemical_list: D011422:Propionates; D011458:Prostaglandins E; D005480:Flurbiprofen