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  • Title: Semiquantitative use of Biocept-G radioreceptorassay.
    Author: Hussa RO, Mattingly RF.
    Journal: Obstet Gynecol; 1979 Aug; 54(2):199-204. PubMed ID: 460754.
    Abstract:
    Serum samples (93 total) from 62 different patients were analyzed by quantitative radioimmunoassay (RIA) and by the Biocept-G radioreceptorassay (RRA) for detection of human chorionic gonadotropin (hCG). The ratio of sample counts to reference control counts (S/R) was determined for each RRA. For the 44 serum samples having S/R ratios between 0.295 and 1.20 (corresponding to hCG levels of 4600 and 89 mIU/ml, respectively), there was good correlation between the S/R ratio by RRA and the serum level of hCG by RIA (correlation coefficient = -0.92). When serum samples were analyzed in as many as 4 different Biocept-G kits, the same S/R ratios were obtained. The S/R ratio reliably predicted the trend in serum hCG titer in 7 patients during treatment for gestational trophoblastic disease. The usefulness of the S/R ratio in obtaining semiquantitative results with the Biocept-G RRA is discussed.
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