Endocrine Abstracts

Type 2 5’-deiodinase (DIO2) is a common enzyme between thyroid and eye muscle tissues involving in T4 conversion to T3. The role of DIO2 has been demonstrated in the development of skeletal muscle. Increased DIO2 activities was connected to eye muscle enlargements in hyperthyroid Graves’ ophthalmopathy. In this study, the presence of antibodies against human eye muscle tissue fractions with the binding to DIO2 peptide was investigated and measur...

Antithyroid drugs represent mainly the first choice therapy in hyperthyroid Graves’ disease. Their therapeutical ineffectiveness can lead to the onset or the severity of ophthalmopathy associated with Graves’ disease. Type 2 5’-deiodinase enzyme (DIO2) plays a crucial role besides type 1 5’-deiodinase enzyme in the development of Graves’ hyperthyroidism. Anti-thyroid drugs inhibit the activity of both type 5’-deiodinases blocking the synthesis of ...