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  • Title: [Serodiagnosis of microbiosis in mice with a quantitative assay of immunoglobulins by a microcomputer-introduced ELISA system. 1. Anti-Sendai virus antibodies in naturally infected mouse sera].
    Author: Yanabe M, Yoshida TO.
    Journal: Jikken Dobutsu; 1986 Jul; 35(3):279-92. PubMed ID: 3021481.
    Abstract:
    An enzyme-linked immunosorbent assay system combined with microcomputer data analysis was established as a quantitative assay method of immunoglobulins. The assay system was applied to measure IgG and IgM levels of anti-microbe antibodies in animals, especially mouse and rat. And now the measurement of IgG and IgM levels (ng/ml) of anti-Sendai virus (HVJ) antibodies in naturally infected mice is available. The assay system could improve serodiagnosis in the specificity and sensitivity and in the rapid treatment of many serum samples. The operation of this system was performed by a microcomputer, FM 8 connected Titertek Multiskan MC. The limited sensitivity of this assay for IgG and IgM was 10 ng/ml and 30 ng/ml, respectively. Ninety-one of serum samples were positive for IgG and/or IgM (45 samples for IgG and IgM, 44 samples for IgG, 2 samples for IgM) to Sendai virus in the tested 279 mouse sera, and serum titers were ranged from 1: 10 to 1: 12,800 in the IgG, and from 1: 20 to 1: 160 in the IgM. In these titers, serum IgG and IgM amounts were estimated to be 0.1 to 154 micrograms/ml and 0.5 to 4.8 micrograms/ml, respectively. Relationships of serum titers and antibody amounts were almost consisted, being judged like that approximately 10 micrograms/ml is 1: 400, 30 micrograms/ml is 1: 1,600 in IgG, and 2.4 micrograms/ml is 1: 80, 4 micrograms/ml is 1: 160 in IgM.
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