concentrations of the human platelet proteins beta-thromboglobulin ( beta-tg ) and connective tissue activating peptide ( ctap ) -iii were measured in synovial fluid ( sf ) samples by radioimmunoassay of their common beta-t/ctap antigen . beta-t/ctap antigen concentrations were higher in rheumatoid sf than in samples from osteoarthritis patients .
C1447076
human
C1335239
connective tissue activating peptide