Autosomal recessive cerebellar ataxia caused by mutations in the PEX2 gene
2011

Genetic Causes of Autosomal Recessive Cerebellar Ataxia

Sample size: 2 publication Evidence: moderate

Author Information

Author(s): Sevin Caroline, Ferdinandusse Sacha, Waterham Hans R, Wanders Ronald J, Aubourg Patrick

Primary Institution: Pediatric Neurology and Endocrinology, Hôpital St Vincent de Paul, Paris, France; University of Amsterdam, Academic Medical Centre, Departments of Clinical Chemistry and Pediatrics, Laboratory Genetic Metabolic Diseases, Amsterdam, The Netherlands

Hypothesis

To expand the spectrum of genetic causes of autosomal recessive cerebellar ataxia (ARCA).

Conclusion

Genetic screening of PEX2 and other PEX genes involved in peroxisomal biogenesis is warranted in children and adults with ARCA.

Supporting Evidence

  • Two brothers developed progressive cerebellar ataxia at ages 3.5 and 18.
  • Genetic analysis revealed a homozygous mutation in the PEX2 gene.
  • Screening for peroxisomal metabolites suggested a peroxisomal biogenesis disorder.

Takeaway

This study looked at two brothers who had a rare genetic condition causing problems with balance and coordination. They found a specific gene mutation that could help doctors understand and diagnose similar cases better.

Methodology

Case report detailing clinical evaluations, genetic sequencing, and biochemical analyses.

Limitations

The paternal genotype could not be determined due to loss of contact, leaving uncertainty about the inheritance pattern.

Participant Demographics

Two brothers from non-consanguineous healthy parents.

Digital Object Identifier (DOI)

10.1186/1750-1172-6-8

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