Abstract:An immunoassay based on stick-type solid support (immunostick assay) was developed. To demonstrate the medical diagnosis of rheumatoid arthritis (RA), cyclic-citrullinated peptide (CCP), one of specific antigens against RA autoantibodies, was immobilized on the surface of the immunostick, and a color index table was prepared for the determination of CCP-positivity of the test sera. The positivity of RA-positive (n = 31) and RA-negative (n = 20) sera was tested using the immunostick assay and a conventional enz… Show more
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