Plasma Is the New Risk Factor

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It may not be right around the corner, but a biomarker test for increased susceptibility to Alzheimer's disease might be waiting down the road. In a recent study, researchers at the Mayo Clinic Jacksonville found that blood levels of amyloid beta proteins were higher in young relatives of patients with late onset Alzheimer's disease than in non-relative controls, which suggests that genetic factors controlling the Aβ proteins — including the APOE4 genetic variant, a well known risk factor — are related to higher risk of developing the disease.

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Using DNA to sketch crime victims might not be a great idea, the NYTimes says.

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