title: Age-related anti-thyroid antibodies and thyroid abnormalities in Turner syndrome.
abstract: One hundred pediatric patients with Turner syndrome were studied to determine the correlation between the presence of anti-thyroid antibodies with age and karyotype, and the value of anti-thyroid antibody titers as predictors of subsequent thyroid abnormalities. (54 patients = 45,X; 46 = other karyotypes.) The frequency of positive titers of anti-thyroid antibodies increased linearly with cumulative age. Anti-parietal cell and anti-adrenocortical cell antibodies were not increased in these patients (1.3 and 2.6% respectively). The ability to use positive anti-thyroid antibody titers to predict the development of thyroid abnormalities increased from age 10 years and became statistically significant at ages 13-17 years for the whole group as well as 45,X patients. None of the patients had clinical symptoms of thyroid dysfunction although 22% developed thyroid abnormalities, which included elevated TSH, low T4, and/or goiter.
mesh_terms: D000293:Adolescent; D000302:Adrenal Cortex / Q000276:immunology; D000328:Adult; D000367:Age Factors; D000906:Antibodies / Q000032:analysis; D000888:Antibodies, Anti-Idiotypic / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007621:Karyotyping; D010295:Parietal Cells, Gastric / Q000276:immunology; D013961:Thyroid Gland / Q000276:immunology*; D014424:Turner Syndrome / Q000235:genetics / Q000276:immunology*
chemical_list: D000906:Antibodies; D000888:Antibodies, Anti-Idiotypic