[Determination of autoantibodies to pancreatic beta-cells, non-islet endocrine cells and fibroblasts in patients with newly detected diabetes mellitus].

The clinical onset of insulin-dependent diabetes (IDD) is characterized by the onset of circulation of autoantibodies to beta-cells. Thirty-three newly detected IDD patients and 14 newly detected patients with noninsulin-dependent diabetes mellitus were examined for autoantibodies to antigen P 64-69, to surface antigen of islet cells, to thyrocyte microsomal fraction, thyroglobulin, hypophysis, fibroblasts; the levels of circulating immune complexes were measured as well. IDD debut was found associated with the appearance of antibodies to pancreatic islet cells, thyroid, thyroglobulin, hypophysis, fibroblasts, this indicating a polyclonal activation of the immunity system. A relationship was revealed between antifibroblast antibody and anti-islet-cell antibody. Antihypophyseal antibodies were detected in 43% of patients with noninsulin dependent diabetes. Nine per cent of IDD patients and 24% of patients with noninsulin dependent condition were negative in the tests.