Allan-Herndon-Dudley syndrome

A severe form (OMIM:30052)3 of X-linked psychomotor retardation combined with thyroid hormone defects due to imparied hormone synthesis, transport and action. Affected male patients have abnormal concentrations of circulating iodothyronines and severe neurologic deficits, including developmental delay, central hypotonia, spastic quadriplegia, dystonic movements, rotary nystagmus and impaired gaze and hearing. Heterozygous females have a milder thyroid phenotype and no neurologic defects.
Molecular pathology
Caused by defects of SLC16A2, which encodes a widely expressed integral membrane protein that facilitates cellular importatation of thyroid hormones and plays a key role in CNS development.

单词	allan-herndon-dudley syndrome
释义	Allan-Herndon-Dudley syndrome Allan-Herndon-Dudley syndrome A severe form (OMIM:30052)3 of X-linked psychomotor retardation combined with thyroid hormone defects due to imparied hormone synthesis, transport and action. Affected male patients have abnormal concentrations of circulating iodothyronines and severe neurologic deficits, including developmental delay, central hypotonia, spastic quadriplegia, dystonic movements, rotary nystagmus and impaired gaze and hearing. Heterozygous females have a milder thyroid phenotype and no neurologic defects. Molecular pathology Caused by defects of SLC16A2, which encodes a widely expressed integral membrane protein that facilitates cellular importatation of thyroid hormones and plays a key role in CNS development. AcronymsSeeAHDS
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