PARK7 and Parkinson disease: Further heterozygous CNVs (both deletions and duplication) involving the exons of DJ-1 gene have been published so far (Guo et al. 2010; Hedrich et al. 2004; Djarmati et al. 2004; Macedo et al. 2009), although they do not completely explain the recessive pattern of the PD phenotype.