GOSR2-related progressive myoclonus ataxia
Medical condition
GOSR2-related progressive myoclonus ataxia , also known as Progressive myoclonic epilepsy type 6 is a rare genetic type of progressive myoclonus ataxia which is characterized by progressive myoclonic epilepsy with an early onset which is associated with generalized tonic-clonic seizures , petit mal seizures , and drop attacks, variable degrees of scoliosis , areflexia , high levels of creatine kinase serum, and late-onset cognitive decline.[ 1] [ 2]
According to OMIM,[ 3] only 12 cases have been described in medical literature.[ 4] [ 5] [ 6] It is caused by autosomal recessive loss of function mutations in the (as the name implies) GOSR2 gene, in chromosome 17 .[ 4]
References
^ "Orphanet: Progressive myoclonic epilepsy type 6" . www.orpha.net . Retrieved 2022-06-16 .
^ "GOSR2-related progressive myoclonus ataxia | Genetic and Rare Diseases Information Center (GARD) – an NCATS Program" . 2021-03-21. Archived from the original on 2021-03-21. Retrieved 2022-06-16 .{{cite web }}
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^ "OMIM Entry - # 614018 - Epilepsy, Progressive Myoclonic, 6; EPM6" . omim.org . Retrieved 2022-06-16 .
^ a b Corbett, Mark A.; Schwake, Michael; Bahlo, Melanie; Dibbens, Leanne M.; Lin, Meng; Gandolfo, Luke C.; Vears, Danya F.; O'Sullivan, John D.; Robertson, Thomas; Bayly, Marta A.; Gardner, Alison E. (2011-05-13). "A mutation in the Golgi Qb-SNARE gene GOSR2 causes progressive myoclonus epilepsy with early ataxia" . American Journal of Human Genetics . 88 (5): 657–663. doi :10.1016/j.ajhg.2011.04.011 . ISSN 1537-6605 . PMC 3146720 . PMID 21549339 .
^ van Egmond, Martje E.; Verschuuren-Bemelmans, Corien C.; Nibbeling, Esther A.; Elting, Jan Willem J.; Sival, Deborah A.; Brouwer, Oebele F.; de Vries, Jeroen J.; Kremer, Hubertus P.; Sinke, Richard J.; Tijssen, Marina A.; de Koning, Tom J. (January 2014). "Ramsay Hunt syndrome: clinical characterization of progressive myoclonus ataxia caused by GOSR2 mutation" . Movement Disorders . 29 (1): 139–143. doi :10.1002/mds.25704 . ISSN 1531-8257 . PMID 24458321 . S2CID 22595640 .
^ Praschberger, Roman; Balint, Bettina; Mencacci, Niccolo E.; Hersheson, Joshua; Rubio-Agusti, Ignacio; Kullmann, Dimitri M.; Bettencourt, Conceição; Bhatia, Kailash; Houlden, Henry (September 2015). "Expanding the Phenotype and Genetic Defects Associated with the GOSR2 Gene" . Movement Disorders Clinical Practice . 2 (3): 271–273. doi :10.1002/mdc3.12190 . ISSN 2330-1619 . PMC 6178697 . PMID 30363482 .