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  • 1
    ISSN: 1432-0428
    Keywords: Infant feeding ; dairy products ; cow's milk protein antibodies ; IDDM ; childhood ; islet cell antibodies ; insulin autoantibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Associations of infant feeding patterns and milk consumption with cow's milk protein antibody titres were studied in 697 newly-diagnosed diabetic children, 415 sibling-control children and 86 birth-date-and sex-matched population-based control children in the nationwide “Childhood Diabetes in Finland” study. IgA and IgG antibody titres to the proteins of cow's milk formula, BLG and BSA, and IgM antibody titres to cow's milk formula proteins were measured by ELISA. Several inverse correlations were observed between the duration of breast-feeding or age at introduction of dairy products and antibody titres, and positive correlations were observed between milk consumption and antibody titres in all three populations studied. Multivariate analyses which included the infant feeding variables, milk consumption and current age simultaneously showed that the earlier the introduction of dairy products and the greater the consumption of milk was, the higher several antibody titres were. High IgA antibody titres to cow's milk formula were associated with a greater risk of IDDM both among diabeticpopulation-control and diabetic-sibling-control pairs when adjusted for other cow's milk antibody titres, dietary variables and in diabetic-sibling-control pairs also for ICA. The results suggest that young age at introduction of dairy products and high milk consumption during childhood increase the levels of cow's milk antibodies and that high IgA antibodies to cow's milk formula are independently associated with increased risk of IDDM.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0428
    Keywords: Preclinical IDDM ; islet cell antibodies ; early insulin response ; glucose elimination rate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To learn more about the preclinical phase of IDDM we observed for a median period of 46.5 months (range 0.5–69 months) a group of 57 siblings positive for ICA and/or IAA when first screened within 6 months of the diagnosis of the proband. Sequential blood samples and IVGTTs were obtained at intervals of 6–12 months. Seventeen siblings (29.8%) presented with IDDM during the observation period. The duration of the known preclinical period ranged from 0.5 to 51 months (median 29 months). The converters were younger than the other siblings (P〈0.05) and had higher initial ICA levels (P〈0.01). In addition they had a lower FPIR in the first IVGTT (P〈0.001). On all subsequent tests the converters had higher ICA levels and a lower FPIR (P〈0.05 or less), a lower glucose elimination rate from the third test onwards (P〈0.01 or less) and higher IAA levels at 3 years (P〈0.05). Some variation could be observed in the FPIR in the converters with an initial increase and subsequent decrease (P〈0.05 for both). Their levels of complement-fixing ICA increased up to 18 months (P〈0.05) and IAA levels up to 3 years (P〈0.01). Those high risk siblings who progress to clinical IDDM are characterized by young age, strong and increasing signs of islet-cell specific autoimmunity, reduced insulin secreting capacity and emerging glucose intolerance. The present observations seem to be incompatible with the hypothesis of beta-cell destruction occurring at a constant, predictable rate.
    Type of Medium: Electronic Resource
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