Chromosome loss and senescence.
D000368:Aged; D000375:Aging; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D003704:Dementia / Q000235:genetics; D005260:Female; D006801:Humans; D007621:Karyotyping; D008214:Lymphocytes / Q000648:ultrastructure; D008297:Male; D008875:Middle Aged