Compound heterozygosity for a novel hemizygous missense mutation and a partial deletion affecting the catalytic core of the H2O2-generating enzyme DUOX2 associated with transient congenital hypothyroidism

Abstract excerpt

Dual oxidases (DUOX) 1 and 2 are components of the thyroid H(2)O(2)-generating system. H(2)O(2) is used by thyroperoxidase to oxidize iodide for thyroid hormonogenesis. Mutations in the DUOX2 gene have been described in transient and permanent congenital thyroid dyshormonogenesis. We report here a novel genetic defect causing congenital hypothyroidism in a French-Canadian patient. At neonatal screening, the...

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