A distinct autosomal recessive ataxia maps to chromosome 12in an inbred family from Jordan

Hatem El-Shanti, Azhar Daoud, Ammar A. Sadoon, Suzanne M. Leal, Shan Chen, Kwanghyuk Lee, Ronald Spiegel

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Autosomal recessive ataxias are a heterogeneous group of rare disorders characterized by early onset ataxia associated with neurologic, ophthalmologic or systemic signs. The ataxias associated with myoclonus, epilepsy and progressive neurological degeneration are usually included with the progressive myoclonus epilepsies, one of which is Unverricht-Lundborg disease. We identified four siblings with ataxia, juvenile onset progressive action tremor and atonic seizures from a Jordanian family. The mode of inheritance of this syndrome is autosomal recessive. We performed a genome-wide screen for linkage and fine mapped the region that contains the disease locus. The four affected siblings have ataxia noted at the onset of walking with dysarthria and bulbar features, but no cerebellar hypoplasia on MRI. They all developed a fine tremor that progressed to a coarse action tremor, as well as atonic seizures. Treatment with valproate fully controlled the seizures and improved the tremor, but did not change the course of the ataxia. We mapped the gene responsible for this disorder to the pericentromeric region of chromosome 12. A recently described autosomal recessive variant of Unverricht-Lundborg disease also maps to the same region. We discuss the similarities and differences between our family and the family with the Unverricht-Lundborg disease variant.

Original languageEnglish
Pages (from-to)353-357
Number of pages5
JournalBrain and Development
Volume28
Issue number6
DOIs
Publication statusPublished - Jul 2006
Externally publishedYes

Fingerprint

Jordan
Tremor
Ataxia
Unverricht-Lundborg Syndrome
Chromosomes
Seizures
Progressive Myoclonic Epilepsy
Chromosomes, Human, Pair 12
Dysarthria
Valproic Acid
Nervous System
Walking
Genome
Genes

Keywords

  • Action tremor
  • Ataxia
  • Atonic seizures
  • Chromosome 12
  • Epilepsy
  • Linkage analysis
  • Progressive myoclonus epilepsy

ASJC Scopus subject areas

  • Clinical Neurology
  • Pediatrics, Perinatology, and Child Health
  • Neurology

Cite this

El-Shanti, H., Daoud, A., Sadoon, A. A., Leal, S. M., Chen, S., Lee, K., & Spiegel, R. (2006). A distinct autosomal recessive ataxia maps to chromosome 12in an inbred family from Jordan. Brain and Development, 28(6), 353-357. https://doi.org/10.1016/j.braindev.2005.11.003

A distinct autosomal recessive ataxia maps to chromosome 12in an inbred family from Jordan. / El-Shanti, Hatem; Daoud, Azhar; Sadoon, Ammar A.; Leal, Suzanne M.; Chen, Shan; Lee, Kwanghyuk; Spiegel, Ronald.

In: Brain and Development, Vol. 28, No. 6, 07.2006, p. 353-357.

Research output: Contribution to journalArticle

El-Shanti, H, Daoud, A, Sadoon, AA, Leal, SM, Chen, S, Lee, K & Spiegel, R 2006, 'A distinct autosomal recessive ataxia maps to chromosome 12in an inbred family from Jordan', Brain and Development, vol. 28, no. 6, pp. 353-357. https://doi.org/10.1016/j.braindev.2005.11.003
El-Shanti, Hatem ; Daoud, Azhar ; Sadoon, Ammar A. ; Leal, Suzanne M. ; Chen, Shan ; Lee, Kwanghyuk ; Spiegel, Ronald. / A distinct autosomal recessive ataxia maps to chromosome 12in an inbred family from Jordan. In: Brain and Development. 2006 ; Vol. 28, No. 6. pp. 353-357.
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