Myoclonic astatic epilepsy in a patient with a de novo 4q21.22q21.23 microduplication

V. Ottaviani, A. Bartocci, M. Pantaleo, S. Giglio, M. Cecconi, A. Verrotti, G. Merla, G. Stangoni, P. Prontera

Research output: Contribution to journalArticlepeer-review

Abstract

Myoclonic astatic epilepsy in a patient with a de novo 4q21.22q21.23 microduplication: Myoclonicastatic epilepsy (MAE) is a rare form of symptomatic generalized epilepsy of uncertain etiology. To search the possible genetic basis of the disorder, here we investigate a 15 year-old patient with MAE, who is the only person presenting epilepsy in the family. High resolution array-CGH analysis was conducted on DNA extracted from peripheral blood of the patient and the parents. The copy number variant(s) (CNVs) identified were further confirmed by Fluorescent In Situ Hybridization (FISH). The array-CGH identified a de novo microduplication of about 778 Kb in the chromosome region 4q21.22-q21.23, involving 11 genes. This is the first report of a de novo CNV in MAE. The genes involved in the duplication are potential candidates that can be investigated in the future to determine their exact role in the etiopathogenesis of the disorder. However, we suggest performing microarray chromosomal analysis in patients with MAE, since rare de novo CNVs could be identified, and this is known to affect the diagnostic process and recurrence risk assessment.

Original languageEnglish
Pages (from-to)327-332
Number of pages6
JournalGenetic Counseling
Volume26
Issue number3
Publication statusPublished - 2015

Keywords

  • De novo copy number variation
  • Duplication 4q22
  • Genetics
  • Lacosamide
  • Myoclonic-astatic epilepsy

ASJC Scopus subject areas

  • Genetics(clinical)
  • Medicine(all)

Fingerprint Dive into the research topics of 'Myoclonic astatic epilepsy in a patient with a de novo 4q21.22q21.23 microduplication'. Together they form a unique fingerprint.

Cite this