Late-onset frontotemporal dementia associated with a novel PGRN mutation.

We describe a new mutation in the PGRN gene (A303AfsX57) associated with late-onset frontotemporal dementia and with "cat's eye" shaped intranuclear and cytoplasmatic ubiquitin immunoreactive inclusions in the neuropathological exam. The A303AfsX57 mutation is consistent with a nucleotide deletion in exon 8 (c908delC). This deletion causes a frameshift at codon 303 that introduces a premature termination codon (A303AfsX57).