Adult onset neurodegenerative disorder
Gene: CSTB
Myoclonic epilepsy of Unverricht and Lundborg is an autosomal recessive disorder characterized by onset of neurodegeneration between 6 and 13 years of age. Although it is considered a progressive myoclonic epilepsy, it differs from other forms in that is appears to be progressive only in adolescence, with dramatic worsening of myoclonus and ataxia in the first 6 years after onset. The disease stabilizes in early adulthood. Several cases but childhood onset - redCreated: 2 Sep 2019, 4:06 p.m. | Last Modified: 2 Sep 2019, 4:06 p.m.
Panel Version: 1.99
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Epilepsy, progressive myoclonic 1A, 254800; Epilepsy, progressive myoclonic 1A (Unverricht and Lundborg), 254800; microcephaly and severe dyskinesia (26843564)
Onset 6-13 yearsCreated: 23 Jul 2019, 3:35 p.m. | Last Modified: 23 Jul 2019, 3:35 p.m.
Panel Version: 1.72
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Epilepsy, progressive myoclonic 1A, 254800; Epilepsy, progressive myoclonic 1A (Unverricht and Lundborg), 254800; microcephaly and severe dyskinesia, 26843564
As discussed with the GMS Neurology Specialist Test Group webex call 11th September 2019: The Specialist Test Group all agreed that there is only enough evidence to rate this gene RedCreated: 20 Sep 2019, 4:19 p.m. | Last Modified: 20 Sep 2019, 4:19 p.m.
Panel Version: 1.106
Review and rating from Tracy Lester (Oxford Medical Genetics Laboratories Oxford University Hospitals NHS Foundation Trust) on behalf of Wessex and West Midlands GLH for GMS Neurology specialist test group. All the green and amber, except for the genes with triplet repeats, were reviewed.Created: 2 Sep 2019, 4:46 p.m. | Last Modified: 2 Sep 2019, 4:46 p.m.
Panel Version: 1.101
Review and rating submitted by Nick Beauchamp (Sheffield Diagnostic genetics Service), on behalf of Yorkshire and North East GLH for GMS Neurology specialist test group.Created: 23 Jul 2019, 3:51 p.m. | Last Modified: 23 Jul 2019, 3:51 p.m.
Panel Version: 1.74
Review and rating submitted byJames Polke (North Bristol NHS Trust), unless specified in the review comment, on behalf of London North GLH for GMS Neurology specialist test group.Created: 23 Apr 2019, 5:35 p.m.
Tag nucleotide-repeat-expansion tag was added to gene: CSTB.
Phenotypes for gene: CSTB were changed from Epilepsy, progressive myoclonic 1A, 254800; Epilepsy, progressive myoclonic 1A (Unverricht and Lundborg), 254800; microcephaly and severe dyskinesia (26843564) to Epilepsy, progressive myoclonic 1A (Unverricht and Lundborg), OMIM:254800
Source Expert Review Red was added to CSTB. Rating Changed from Green List (high evidence) to Red List (low evidence)
Source Wessex and West Midlands GLH was added to CSTB.
Source Yorkshire and North East GLH was added to CSTB.
Source NHS GMS was added to CSTB.
Source London North GLH was added to CSTB.
Louise Daugherty: Comment on phenotypes: amended
Added phenotypes Epilepsy, progressive myoclonic 1A (Unverricht and Lundborg), 254800 for gene: CSTB
gene: CSTB was added gene: CSTB was added to Neurodegenerative disorders - adult onset. Sources: Expert Review Green Mode of inheritance for gene: CSTB was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CSTB were set to 26843564 Phenotypes for gene: CSTB were set to Epilepsy, progressive myoclonic 1A, 254800; microcephaly and severe dyskinesia (26843564)