Abstract

C-reactive protein (CRP) is an acute-phase reactant the concentration of which increases significantly following tissue injury or inflammation. I report here the development of a rapid and sensitive solid-phase enzyme immunoassay (EIA) for determination of serum CRP. The inclusion of 4% (w/v) polyethylene glycol (PEG) in the diluent buffers made it possible to quantitate CRP within 4 h at room temperature. The minimum detectable amount was about 500 pg CRP/ml. Excellent correlation in determination of serum CRP was found between solid-phase EIA and nephelometric assay, radial immunodiffusion and the qualitative latex agglutination tests.

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