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Study finds mix of disease processes at work in brains of most people with dementia

son’s disease (including two people with all three conditions). Infarcts alone caused another 12 percent of the cases. Also, 80 of the 141 volunteers who died had sufficient Alzheimer’s disease pathology in their brains to fulfill accepted neuropathologic criteria for Alzheimer’s disease, although in life only 47 were clinically diagnosed with probable or possible Alzheimer’s disease.

“We know that people can have Alzheimer’s pathology without having symptoms,” says Dallas Anderson, Ph.D., population studies program director in the NIA Neuroscience and Neuopsychology of Aging Program. “The finding that Alzheimer’s pathology with cerebral infarcts is a very common combination in people with dementia adds to emerging evidence that we might be able to reduce some of the risk of dementia with the same tools we use for cardiovascular disease such as control of blood cholesterol levels and hypertension.”

NIA is conducting clinical trials to determine whether interventions for cardiovascular disease can prevent or slow the progress of Alzheimer’s disease. On-going trials cover a range of interventions such as statin drugs, vitamins and exercise.
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Source:NIH/National Institute on Aging


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