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Published on: October 6, 2023
Clinical recognition and evaluation of patients with inherited serum thyroid hormone-binding protein mutations
M S Mimoto1, S Refetoff2,3,4
1Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of California, San Diego, 9500 Gilman Drive, MC 7381, San Diego, CA, USA.
Abstract:
There are three important thyroid hormone-binding proteins in human serum, thyroxine-binding globulin, transthyretin, and albumin. Genetic variation in these proteins can lead to altered thyroid hormone binding and abnormalities in serum tests of thyroid hormone. Importantly, patients harboring these mutations are euthyroid; thus, the recognition of these conditions is crucial to prevent unnecessary repeated testing and treatment. This article provides an updated overview of serum thyroid hormone transport biology and reviews the underlying genetic alterations, clinical presentation, and appropriate evaluation of patients with suspected mutations in serum thyroid hormone-binding proteins.
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