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  • Title: Age-related changes in the levels of IgG, IgM and IgA antibodies to type I collagen in the sera of normal human subjects.
    Author: Nicoloff G, Valtsova D, Baydanoff S.
    Journal: Cor Vasa; 1992; 34(4):365-72. PubMed ID: 1308730.
    Abstract:
    Serum samples from healthy subjects of different ages (within the age range of 1-75 years) were tested for the presence of anti-type I collagen (anti-CI) IgG, IgM and IgA by enzyme-linked immunosorbent assay (ELISA). All the tested sera showed anti-CI antibodies from the three immunoglobulin classes with the following age-related regularities: 1. Anti-CI IgG and IgM showed statistically non-significant changes up to the age of 60 decreasing thereafter. 2. Anti-Ci IgA changed negligibly up to the age of 40 increasing with age thereafter. The established age-related changes in the levels of anti-CI antibodies may serve as a basis for future studies of normal and pathological turnover of type I collagen.
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