A parent affected with late-onset Alzheimer's

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Having a parent affected with late-onset Alzheimer's disease (AD) is a risk factor for developing AD among cognitively normal subjects. We examined whether cognitively normal subjects with a parental family history of AD show cerebral metabolic rate of glucose (CMRglc) reductions consistent with AD as compared with those without a family history and whether there are parent gender effects. Forty-nine 50- to 80-year-old normal subjects were examined who received clinical, neuropsychological, and 2-[18F]fluoro-2-deoxy-D-glucose–positron emission tomography examinations, including 16 subjects with a maternal (FHm) and eight with a paternal (FHp) family history of AD and 25 with no family history (FH–). FH groups were comparable for demographic and neuropsychological measures. As compared with both FH– and FHp groups, FHm subjects showed CMRglc reductions in the same regions as clinically affected AD patients, involving the posterior cingulate cortex/precuneus, parietotemporal and frontal cortices, and medial temporal lobes (P <>Proc. Natl. Acad. Sci. USA, 10.1073/pnas.0705036104

Vitamin C and dairy linked to less abdominal weight
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