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  • Title: [Comparison of three anti-aquaporin 4 antibody detection methods in neuromyelitis optical].
    Author: Ye J, Liao ZY, Sun H, You XF, Wu XL, Li CJ.
    Journal: Zhonghua Nei Ke Za Zhi; 2011 Oct; 50(10):848-50. PubMed ID: 22321326.
    Abstract:
    OBJECTIVE: To evaluate three methods of detecting anti-aquaporin 4(AQP4) antibody in neuromyelitis optical(NMO), including indirect immunofluorescence assay organization (IIF), cell immunofluorescence method (CBA) and ELISA. METHODS: The patients were divided into NMO group (n = 29), multiple sclerosis (MS) group (n = 23), and healthy controls group (n = 50). IIF, CBA and ELISA were used in 3 groups to detect serum anti-AQP4 antibody. The sensitivity and specificity as well as the consistency of positive results were compared. RESULTS: In the aspect of the sensitivity of the three anti-AQP4 antibody to diagnosis NMO, CBA (72.4%) > IIF (62.1%) > ELISA (51.7%); in the aspect of specificity, CBA (100.0%) > ELISA (98.6%) > IIF (97.3%). Kappa testing and evaluation method showed that the three detection methods were all in good consistency, particular in CBA and ELISA (P < 0.01). CONCLUSIONS: CBA method showed a highest specificity and sensitivity in all these three anti-AQP4 antibody detection methods. CBA and ELISA are in better consistency of positive results.
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