Familial neonatal seizures with intellectual disability caused by a microduplication of chromosome 2q24.3

被引：29

作者：

Heron, Sarah E. ^{[1
,2
]}

Scheffer, Ingrid E. ^{[3
,4
]}

Grinton, Bronwyn E. ^{[3
]}

Eyre, Helen ^{[1
]}

Oliver, Karen L. ^{[3
]}

Bain, Sharon ^{[1
]}

Berkovic, Samuel F. ^{[3
]}

Mulley, John C. ^{[1
,2
,5
]}

机构：

[1] Womens & Childrens Hosp, SA Pathol, Adelaide, SA 5006, Australia

[2] Univ Adelaide, Sch Paediat & Reprod Hlth, Adelaide, SA, Australia

[3] Univ Melbourne & Austin Hlth, Dept Med Neurol, Melbourne, Vic, Australia

[4] Univ Melbourne, Dept Paediat, Royal Childrens Hosp, Melbourne, Vic, Australia

[5] Univ Adelaide, Sch Mol & Biomed Sci, Adelaide, SA, Australia

来源：

EPILEPSIA | 2010年 / 51卷 / 09期

基金：

英国医学研究理事会;

关键词：

Epilepsy; Intellectual disability; Microduplication; Neonatal Seizures; Voltage-gated sodium channel; INFANTILE SEIZURES; BENIGN; CONVULSIONS; MUTATIONS; DIAGNOSIS; GENETICS; EPILEPSY;

D O I：

10.1111/j.1528-1167.2010.02558.x

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

P>A family with dominantly inherited neonatal seizures and intellectual disability was atypical for neonatal and infantile seizure syndromes associated with potassium (KCNQ2 and KCNQ3) and sodium (SCN2A) channel mutations. Microsatellite markers linked to KCNQ2, KCNQ3, and SCN2A were examined to exclude candidate locations, but instead revealed a duplication detected by observation of three alleles for two markers flanking SCN2A. Characterization revealed a 1.57 Mb duplication at 2q24.3 containing eight genes including SCN2A, SCN3A, and the 3' end of SCN1A. The duplication was partially inverted and inserted within or near SCN1A, probably affecting the expression levels of associated genes, including sodium channels. Rare or unique microchromosomal copy number mutations might underlie familial epilepsies that do not fit within the clinical criteria for the established syndromes.

引用

页码：1865 / 1869

页数：5

共 12 条

[11] Effects in neocortical neurons of mutations of the Nav1.2 Na+ channel causing benign familial neonatal-infantile seizures [J].

Scalmani, Paolo ;

Rusconi, Raffaella ;

Armatura, Elena ;

Zara, Federico ;

Avanzini, Giuliano ;

Franceschetti, Silvana ;

Mantegazza, Massimo .

JOURNAL OF NEUROSCIENCE, 2006, 26 (40) :10100-10109

[12] Benign familial neonatal convulsions: Always benign? [J].

Steinlein, O. K. ;

Conrad, C. ;

Weidner, B. .

EPILEPSY RESEARCH, 2007, 73 (03) :245-249

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