Abstract
ABSTRACTA two-step dual-label TRFIA was developed for the simultaneous detection of human epididymis protein-4 and cancer antigen 125 in a single run. The performance of this assay was first evaluated using clinical serum samples, and then compared with commercialized kits. The sensitivity of this assay for cancer antigen 125 detection was 0.5 U/mL (dynamic range, 0–1400 U/L), and the sensitivity for human epididymis protein-4 detection was 1 pM (dynamic range, 1–900 pM). High correlation coefficients (R) were obtained between the present dual-label TRFIA and commercially available kits (R = 0.99). The present dual-label TRFIA has high sensitivity, specificity, and accuracy in clinical sample analysis. It is a good alternative to the single-label diagnostic methods.
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