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Prevalence of cytoplasmatic islet cell antibodies and insulin autoantibodies is increased in subjects with genetically defined high risk for insulin-dependent diabetes mellitus. 1989

B Kuglin, and J Bertrams, and C Linke, and F A Gries, and H Kolb
Diabetes-Forschungsinstitut, Universität Düsseldorf.

The presence of cytoplasmatic islet cell antibodies (ICA) and IgG insulin autoantibodies (IgG-IAA) has been observed in the prediabetic state of type 1 (insulin-dependent) diabetes (IDDM). We therefore analyzed the prevalence of these markers in sera from 1117 healthy HLA-typed first-degree relatives (1 degree Rel) of IDDM patients. ICA was determined by indirect immunofluorescence on cryostat sections of human pancreas. For IgG-IAA measurement a competitive solid-phase ELISA was used. ICA were present in 3.5% of 1 degree Rel vs 0.4% of controls (P less than 0.025). The highest frequencies of ICA were found in individuals of IDDM multiplex families (7.7%) and HLA-DR1,3 (5.4%), -DR1,4 (5.8%), and -DR3,4 (6.7%) positive subjects. We therefore conclude that the prevalence of ICA is increased in 1 degree Rel with high genetic risk for diabetes. IgG-IAA occurred in 9.9% of 1 degree Rel vs 1.4% of controls (P less than 0.01). Like ICA, IgG-IAA were significantly increased in a group of subjects being positive for either HLA-DR1,3 -DR1,4, or -DR3,4 (16.5%, P less than 0.01). In multiplex families, however, prevalence of IgG-IAA was not increased. In contrast to ICA there was an additional influence of age and sex: IgG-IAA were found more often in siblings (mean age, 16.6 years; prevalence, 15.0%) than in parents (mean age, 44.1 years; prevalence, 8.3%) of IDDM patients (P less than 0.01). In brothers the prevalence of IgG-IAA is higher than in other 1 degree Rel. Only a weak association between ICA and IgG-IAA was observed in subjects (n = 810) tested for both antibodies.(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D007330 Insulin Antibodies Antibodies specific to INSULIN. Antibodies, Insulin
D007515 Islets of Langerhans Irregular microscopic structures consisting of cords of endocrine cells that are scattered throughout the PANCREAS among the exocrine acini. Each islet is surrounded by connective tissue fibers and penetrated by a network of capillaries. There are four major cell types. The most abundant beta cells (50-80%) secrete INSULIN. Alpha cells (5-20%) secrete GLUCAGON. PP cells (10-35%) secrete PANCREATIC POLYPEPTIDE. Delta cells (~5%) secrete SOMATOSTATIN. Islands of Langerhans,Islet Cells,Nesidioblasts,Pancreas, Endocrine,Pancreatic Islets,Cell, Islet,Cells, Islet,Endocrine Pancreas,Islet Cell,Islet, Pancreatic,Islets, Pancreatic,Langerhans Islands,Langerhans Islets,Nesidioblast,Pancreatic Islet
D008297 Male Males
D003593 Cytoplasm The part of a cell that contains the CYTOSOL and small structures excluding the CELL NUCLEUS; MITOCHONDRIA; and large VACUOLES. (Glick, Glossary of Biochemistry and Molecular Biology, 1990) Protoplasm,Cytoplasms,Protoplasms
D003922 Diabetes Mellitus, Type 1 A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence. Diabetes Mellitus, Brittle,Diabetes Mellitus, Insulin-Dependent,Diabetes Mellitus, Juvenile-Onset,Diabetes Mellitus, Ketosis-Prone,Diabetes Mellitus, Sudden-Onset,Diabetes, Autoimmune,IDDM,Autoimmune Diabetes,Diabetes Mellitus, Insulin-Dependent, 1,Diabetes Mellitus, Type I,Insulin-Dependent Diabetes Mellitus 1,Juvenile-Onset Diabetes,Type 1 Diabetes,Type 1 Diabetes Mellitus,Brittle Diabetes Mellitus,Diabetes Mellitus, Insulin Dependent,Diabetes Mellitus, Juvenile Onset,Diabetes Mellitus, Ketosis Prone,Diabetes Mellitus, Sudden Onset,Diabetes, Juvenile-Onset,Diabetes, Type 1,Insulin Dependent Diabetes Mellitus 1,Insulin-Dependent Diabetes Mellitus,Juvenile Onset Diabetes,Juvenile-Onset Diabetes Mellitus,Ketosis-Prone Diabetes Mellitus,Sudden-Onset Diabetes Mellitus
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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