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  • 1
    ISSN: 1432-0428
    Keywords: Incidence ; seasonal variation ; geographical pattern ; sex-difference ; epidemiology ; juvenile-onset ; insulin-dependent ; diabetes mellitus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The incidence, sex, seasonal and geographical patterns of juvenile-onset insulin-dependent diabetes mellitus (j.i.d.m.) were studied retrospectively on one third of the Danish population 1970–1974. The j.i.d.m. incidence remained fairly constant during the study period, the average being 13.2 per 100000 per year. The total number of boys exceeded the number of girls by 27 per cent. A marked peak of incidence was found at 12–14 years, earlier for females than for males. A seasonal variation in onset (diagnosis) of j.i.d.m. was observed with the lowest number of new cases in May–July. The j.i.d.m. incidence seemed to show socioeconomic differences, being highest in those parts of the survey area with lower status.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 13 (1977), S. 589-593 
    ISSN: 1432-0428
    Keywords: Insulin receptors ; human adipocytes ; insulin degradation ; lipogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The binding of125I-labelled insulin to human adipocytes was studied at 37° C. The precipitability of the125I-labelled insulin preparation (0.03 nmol/l) in trichloroacetic acid and the concentration of biologically active insulin (7.5 nmol/l) remained constant in buffer incubated with human adipocytes (100 μl cells/ml suspension) for 30–60 minutes at 37° C, whereas more than half of the insulin was inactivated by rat fat cells under the same conditions. A constant level of binding of125I-labelled insulin (0.03 nmol/l) to human adipocytes was obtained after 45 minutes. The apparent dissociation constant of receptor binding was about 0.2 nmol/l as compared to about 2 nmol/l for rat adipocytes. Conversion of [U-14C]glucose to lipids was stimulated half-maximally by about 0.05 nmol/l of insulin (similar to rat adipocytes). Thus, half-maximal stimulation of human adipocytes was obtained with a receptor occupancy of about 20–30 per cent.
    Type of Medium: Electronic Resource
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