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Recessive Symptomatic Focal Epilepsy and Mutant Contactin-Associated Protein-like 2

Authors: Kevin A, Strauss; Erik G, Puffenberger; Matthew J, Huentelman; Steven, Gottlieb; Seth E, Dobrin; Jennifer M, Parod; Dietrich A, Stephan; +1 Authors

Recessive Symptomatic Focal Epilepsy and Mutant Contactin-Associated Protein-like 2

Abstract

Contactin-associated protein-like 2 (CASPR2) is encoded by CNTNAP2 and clusters voltage-gated potassium channels (K(v)1.1) at the nodes of Ranvier. We report a homozygous mutation of CNTNAP2 in Old Order Amish children with cortical dysplasia, focal epilepsy, relative macrocephaly, and diminished deep-tendon reflexes. Intractable focal seizures began in early childhood, after which language regression, hyperactivity, impulsive and aggressive behavior, and mental retardation developed in all children. Resective surgery did not prevent the recurrence of seizures. Temporal-lobe specimens showed evidence of abnormalities of neuronal migration and structure, widespread astrogliosis, and reduced expression of CASPR2.

Keywords

Reflex, Stretch, Homozygote, Gene Expression, Membrane Proteins, Electroencephalography, Nerve Tissue Proteins, Temporal Lobe, Phenotype, Seizures, Child, Preschool, Mutation, Secondary Prevention, Humans, Epilepsies, Partial, Child, Magnetic Resonance Angiography

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Powered by OpenAIRE graph
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
544
Top 1%
Top 1%
Top 1%