We have previously localized a locus causing familial nonspecific dementia
to the centromeric region of chromosome 3 in a pedigree from the Jutland ar
ea of Denmark. Th is pedigree shows anticipation. Here we present further a
nalysis of these anticipation data which are suggestive of trinucleotide re
peat expansion involvement. We also outline our strategies to clone the mut
ant gene via its putative associated trinucleotide repeat sequence.