Mondo Description Allan-Herndon-Dudley syndrome (AHDS) is an X-linked intellectual disability syndrome with neuromuscular involvement characterized by infantile hypotonia, muscular hypoplasia, spastic paraparesis with dystonic/athetoic movements, and severe cognitive deficiency.
Uniprot Description Consists of a severe form of X-linked psychomotor retardation combined with abnormal thyroid hormone (TH) levels. Thyroid hormone deficiency can be caused by defects of hormone synthesis and action, but it has also been linked to a defect in cellular hormone transport. Affected patients are males with abnormal relative concentrations of three circulating iodothyronines, as well as severe neurological abnormalities, including global developmental delay, central hypotonia, spastic quadriplegia, dystonic movements, rotary nystagmus, and impaired gaze and hearing. Heterozygous females had a milder thyroid phenotype and no neurological defects.
Disease Ontology Description A X-linked recessive disease that has material basis in mutation at is in the gene encoding the monocarboxylate transporter-8 which alters the structure and function of the SLC16A2 protein which is then unable to transport the thyroid triiodothyronine (T3) hormone into nerve cells of the developing brain affecting normal brain development resulting in intellectual disability and problems with movement.
Counts of Target Development Levels for diseases known to be associated with this disease. If the disease has a valid DOID, targets known to be associated with all child diseases are aggregated. Click "Explore Associated Targets" to view more facets and details for the target list.
This disease has been annotated by GARD as a rare disease.
Description from Mondo Disease Ontology.
Description from UniProt.
Description from Disease Ontology
DataSources which have contributed target associations to this disease, and the identifiers by which the disease is referenced.
DOID:0050631
GARD:0005617
MESH:C537047
NCIT:C118843
OMIM:300523
Orphanet:59
SCTID:702327009
UMLS:C0795889
MONDO:0010354
High level summary of knowledge for a disease, including descriptions and datasource references.