Replications of the association between APOE-ε4 allele load and regional brain atrophy in Alzheimer's disease (AD) patients hold promise for future studies testing relationships between other disease risk gene variants and brain structure. A polymorphism, rs10868366, in the Golgi phosphoprotein 2 gene, GOLM1, was recently identified as an AD risk factor in a genome-wide association study. In a subset of the same AD cohort, we used voxel-based morphometry to test for association between the disease risk genotype and reduced regional gray matter (GM) volume in AD patients (n = 72).
View Article and Find Full Text PDFHeterogeneity is observed in the patterns of cognition in Alzheimer's disease (AD). Such heterogeneity might suggest the involvement of different etiological pathways or different host responses to pathology. A total of 627 subjects with mild/moderate AD underwent cognitive assessment with the Mini-Mental State Examination (MMSE) and the Dementia Rating Scale-2 (DRS-2).
View Article and Find Full Text PDFAPOE epsilon4 is the best-established genetic risk factor for sporadic Alzheimer's disease (AD). However, while homozygotes show greater disease susceptibility and earlier age of onset than heterozygotes, they may not show faster rates of clinical progression. We hypothesize that there are differential APOE epsilon4 allele-load dependent influences on neuropathology across the brain.
View Article and Find Full Text PDFObjective: To identify single-nucleotide polymorphisms (SNPs) associated with risk and age at onset of Alzheimer disease (AD) in a genomewide association study of 469 438 SNPs.
Design: Case-control study with replication.
Setting: Memory referral clinics in Canada and the United Kingdom.
This study examined the effect of the Driving and Dementia Toolkit on physician knowledge and confidence gained and the anticipated change in patient assessment and evaluated the extent to which physicians found the material to be useful. Before receiving the driving toolkit, 301 randomly selected primary care physicians received a copy of the pretest questionnaire; 145 responded and met the eligibility criteria. This group was then sent the toolkit, a satisfaction a survey, and a posttest questionnaire.
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