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  • Title: Specific immunoregulation abnormality in insulin-dependent diabetes mellitus.
    Author: Fairchild RS, Kyner JL, Abdou NI.
    Journal: J Lab Clin Med; 1982 Feb; 99(2):175-86. PubMed ID: 6460826.
    Abstract:
    We evaluated antigen-nonspecific (Con A) and antigen-specific (islet cell) activation of suppressor cell function in 11 IDD patients. Compared with healthy controls, IDD was associated with both antigen-specific (n = 11, p less than 0.01) and nonspecific (n = 6, p less than 0.03) suppressor cell hypofunction. The specific defect was not present in NIDD patients and correlated negatively with the duration of the disease (r = -0.6, p less than 0.05). No relationship was found between the degree of specific suppressor cell dysfunction and diabetic control as assessed by glycosylated hemoglobin, plasma glucose values, insulin-binding capacity, or C-peptide determinations. Plasma from IDD lacked anti-suppressor cell activity. Low levels of circulating immune complexes were detected in IDD patients whose disease duration was 1 month or less. Specific suppressor cell hypofunction and/or enhanced helper cell activity in early stages of IDD could be contributing to the formation of islet cell autoantibodies, immune complexes, islet cell injury, and the diabetic state.
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