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Mondo Disease Ontology
Preferred Name | spinal muscular atrophy | |
Synonyms | ||
Definitions |
A motor neuron disease that affect the muscles, and characterized by muscle weakness and atrophy resulting from progressive degeneration and irreversible loss of the anterior horn cells in the spinal cord (i.e., lower motor neurons) and the brain stem nuclei. The severity of the condition; the associated signs and symptoms; and the age at which symptoms develop varies by subtype. In general, people with spinal muscular atrophy (SMA) experience progressive weakness and atrophy of muscles involved in mobility, the ability to sit unassisted, and head control. Breathing and swallowing may also be affected in severe cases. SMA is generally caused by changes (mutations) in the SMN1 gene and is inherited in an autosomal recessive manner. Extra copies of the SMN2 gene modify the severity of SMA. Rare autosomal dominant (caused by mutations in DYNC1H1, BICD2, or VAPB genes) and X-linked (caused by mutations in UBA1) forms of SMA exist. Treatment is based on the signs and symptoms present in each person. |
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ID |
http://purl.obolibrary.org/obo/MONDO_0001516 |
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database_cross_reference |
ICD9:335.1 GARD:7674 ICD9:335.19 DOID:12377 NANDO:2100231 MESH:D009134 UMLS:C0026847 ICD9:335.10 NCIT:C85075 NANDO:2200853 icd11.foundation:71074342 NANDO:1200003 MEDGEN:7755 EFO:0008525 SCTID:5262007
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definition |
A motor neuron disease that affect the muscles, and characterized by muscle weakness and atrophy resulting from progressive degeneration and irreversible loss of the anterior horn cells in the spinal cord (i.e., lower motor neurons) and the brain stem nuclei. The severity of the condition; the associated signs and symptoms; and the age at which symptoms develop varies by subtype. In general, people with spinal muscular atrophy (SMA) experience progressive weakness and atrophy of muscles involved in mobility, the ability to sit unassisted, and head control. Breathing and swallowing may also be affected in severe cases. SMA is generally caused by changes (mutations) in the SMN1 gene and is inherited in an autosomal recessive manner. Extra copies of the SMN2 gene modify the severity of SMA. Rare autosomal dominant (caused by mutations in DYNC1H1, BICD2, or VAPB genes) and X-linked (caused by mutations in UBA1) forms of SMA exist. Treatment is based on the signs and symptoms present in each person.
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id |
MONDO:0001516
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in_subset |
http://purl.obolibrary.org/obo/mondo/mondo-simple#otar http://purl.obolibrary.org/obo/mondo/mondo-simple#rare |
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label |
spinal muscular atrophy
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notation |
MONDO:0001516
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prefLabel |
spinal muscular atrophy
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seeAlso |
https://rarediseases.info.nih.gov/diseases/7674/spinal-muscular-atrophy |
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skos_exactMatch |
http://linkedlifedata.com/resource/umls/id/C0026847 http://purl.obolibrary.org/obo/DOID_12377 http://identifiers.org/snomedct/5262007 http://purl.obolibrary.org/obo/mondo/sources/icd11foundation/71074342 http://purl.obolibrary.org/obo/NCIT_C85075 http://identifiers.org/mesh/D009134 |
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