hrp0084fc13.6 | Thyroid | ESPE2015

TRIAC Treatment of Allan-Herndon-Dudley Syndrome (AHDS) due to Defects in Thyroid Hormone Transporter MCT8

Iglesias A , Gomez-Gila A L , Casano P , del Pozo J , de Mingo M C , Pons N , Calvo F , Obregon M J , Bernal J , Moreno J C

Background: AHDS is a devastating disease caused by defects in the thyroid hormone (TH) transporter MCT8. Endocrine expression is heralded by systemic hyperthyroidism with elevated serum T3, mildly increased TSH and decreased T4. However, the brain is hypothyroid, causing severe psychomotor retardation. Therapeutic attempts with PTU+levothyroxine or the T3-analogue DITPA could normalize TH derangements but without any neurological improvement. ...