We report on an Israeli family originating from Iran in which 4 of 7 brothers born from a consanguineous marriage had juvenile Parkinsonism. Linkage analysis of markers covering the autosomal recessive juvenile Parkinsonism (AR-JP, PARK2, Parkin gene, OMIM #602544) gene resulted in a maximal logarithm of odds score of 2.18. A homozygous deletion that expanded from exon 4 to exon 6 was identified in all the patients. Significant clinical heterogeneity was present between siblings.
Copyright 2005 Movement Disorder Society.