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Teenage-onset progressive myoclonic epilepsy due to a familial C9orf72 repeat expansion

Jelle van den Ameele UGent, Ivana Jedlickova, Anna Pristoupilova, Anne Sieben, Sara Van Mossevelde, Chantal Ceuterick-de Groote, Helena Hůlková, Radoslav Matej, Alfred Meurs, Christine Van Broeckhoven, et al. (2018) NEUROLOGY. 90(8). p.e658-e663
abstract
Background: The progressive myoclonic epilepsies (PME) are a heterogeneous group of disorders in which a specific diagnosis cannot be made in a subset of patients, despite exhaustive investigation. C9orf72 repeat expansions are emerging as an important causal factor in several adult-onset neurodegenerative disorders, in particular frontotemporal lobar degeneration and amyotrophic lateral sclerosis. An association with PME has not been reported previously. Objective: To identify the causative mutation in a Belgian family where the proband had genetically unexplained PME. Results: We report a 33-year old woman who had epilepsy since the age of 15 and then developed progressive cognitive deterioration and multifocal myoclonus at the age of 18. The family history suggested autosomal dominant inheritance of psychiatric disorders, epilepsy, and dementia. Thorough workup for PME including whole exome sequencing did not reveal an underlying cause, but a C9orf72 repeat expansion was found in our patient and affected relatives. Brain biopsy confirmed the presence of characteristic p62-positive neuronal cytoplasmic inclusions. Conclusion: C9orf72 mutation analysis should be considered in patients with PME and psychiatric disorders or dementia, even when the onset is in late childhood or adolescence.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
NEURONAL CEROID-LIPOFUSCINOSIS, AMYOTROPHIC-LATERAL-SCLEROSIS, HEXANUCLEOTIDE REPEAT, FRONTOTEMPORAL DEMENTIA, DISEASE, MUTATIONS, FEATURES, FTD, ALS
journal title
NEUROLOGY
Neurology
volume
90
issue
8
pages
e658 - e663
Web of Science type
Article
Web of Science id
000427814700003
ISSN
0028-3878
1526-632X
DOI
10.1212/wnl.0000000000004999
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8547327
handle
http://hdl.handle.net/1854/LU-8547327
date created
2018-02-01 13:38:54
date last changed
2018-05-15 13:14:49
@article{8547327,
  abstract     = {Background: The progressive myoclonic epilepsies (PME) are a heterogeneous group of disorders in which a specific diagnosis cannot be made in a subset of patients, despite exhaustive investigation. C9orf72 repeat expansions are emerging as an important causal factor in several adult-onset neurodegenerative disorders, in particular frontotemporal lobar degeneration and amyotrophic lateral sclerosis. An association with PME has not been reported previously.
Objective: To identify the causative mutation in a Belgian family where the proband had genetically unexplained PME.
Results: We report a 33-year old woman who had epilepsy since the age of 15 and then developed progressive cognitive deterioration and multifocal myoclonus at the age of 18. The family history suggested autosomal dominant inheritance of psychiatric disorders, epilepsy, and dementia. Thorough workup for PME including whole exome sequencing did not reveal an underlying cause, but a C9orf72 repeat expansion was found in our patient and affected relatives. Brain biopsy confirmed the presence of characteristic p62-positive neuronal cytoplasmic inclusions.
Conclusion: C9orf72 mutation analysis should be considered in patients with PME and psychiatric disorders or dementia, even when the onset is in late childhood or adolescence.},
  author       = {van den Ameele, Jelle and Jedlickova, Ivana and Pristoupilova, Anna and Sieben, Anne and Van Mossevelde, Sara and Ceuterick-de Groote, Chantal and H\r{u}lkov{\'a}, Helena and Matej, Radoslav and Meurs, Alfred and Van Broeckhoven, Christine and Berkovic, Samuel F and Santens, Patrick and Kmoch, Stanislav and Dermaut, Bart},
  issn         = {0028-3878},
  journal      = {NEUROLOGY},
  keyword      = {NEURONAL CEROID-LIPOFUSCINOSIS,AMYOTROPHIC-LATERAL-SCLEROSIS,HEXANUCLEOTIDE REPEAT,FRONTOTEMPORAL DEMENTIA,DISEASE,MUTATIONS,FEATURES,FTD,ALS},
  language     = {eng},
  number       = {8},
  pages        = {e658--e663},
  title        = {Teenage-onset progressive myoclonic epilepsy due to a familial C9orf72 repeat expansion},
  url          = {http://dx.doi.org/10.1212/wnl.0000000000004999},
  volume       = {90},
  year         = {2018},
}

Chicago
van den Ameele, Jelle, Ivana Jedlickova, Anna Pristoupilova, Anne Sieben, Sara Van Mossevelde, Chantal Ceuterick-de Groote, Helena Hůlková, et al. 2018. “Teenage-onset Progressive Myoclonic Epilepsy Due to a Familial C9orf72 Repeat Expansion.” Neurology 90 (8): e658–e663.
APA
van den Ameele, J., Jedlickova, I., Pristoupilova, A., Sieben, A., Van Mossevelde, S., Ceuterick-de Groote, C., Hůlková, H., et al. (2018). Teenage-onset progressive myoclonic epilepsy due to a familial C9orf72 repeat expansion. NEUROLOGY, 90(8), e658–e663.
Vancouver
1.
van den Ameele J, Jedlickova I, Pristoupilova A, Sieben A, Van Mossevelde S, Ceuterick-de Groote C, et al. Teenage-onset progressive myoclonic epilepsy due to a familial C9orf72 repeat expansion. NEUROLOGY. 2018;90(8):e658–e663.
MLA
van den Ameele, Jelle, Ivana Jedlickova, Anna Pristoupilova, et al. “Teenage-onset Progressive Myoclonic Epilepsy Due to a Familial C9orf72 Repeat Expansion.” NEUROLOGY 90.8 (2018): e658–e663. Print.