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  • Title: [Comparison between anti-ouabain egg yolk(IgY) and rabbit antibody(IgG) in enzyme-linked immunosorbent assay].
    Author: Zhang MJ, Yang J, Ge H, Qiang L, Duan ZM, Wang CX, Wang R, Lu ZR.
    Journal: Zhongguo Ying Yong Sheng Li Xue Za Zhi; 2007 Nov; 23(4):505-8. PubMed ID: 21180144.
    Abstract:
    AIM: To improve specificity and accuracy of endogenous ouabain measurement assay. METHODS: Anti-ouabain polyclonal antibody egg yolk (IgY) and anti-ouabain rabbit antibody (IgG) were prepared respectively. In the presence of two kinds of antibody, then the specificity and accuracy of enzyme-linked immunosorbent assay (ELISA) were compared. RESULTS: The ELISA, in the presence of IgY, provided a sensitivity of the average intraassay coefficient of variation(CV) was 2.03%, and the inter-assay CV was 2.34% respectively. In contrast, IgG were 2.83% and 3.29%. No significant interferences were observed with hydrocortisone and dexamethasone. There was 3.45% vs. 5.95%, 3.20% vs. 5.20% of crossreaction with cedilanid and digoxin. CONCLUSION: The specificity and accuracy of ELISA, in which IgY was used, were more better than IgG.
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