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Protein aggregates in young neural stem cells seem to echo those seen in neurodegenerative disease-- but could they actually be helpful? As the cells age, they become less able to process the aggregates and their ability to activate is dampened.

Protein aggregates in young neural stem cells seem to echo those seen in neurodegenerative disease-- but could they actually be helpful? As the cells age, they become less able to process the aggregates and their ability to activate is dampened.

Earlier this month, an FDA ruling gave 23andMe permission to market its personal genetic tests for 10 diseases, including Parkinson's and late-onset Alzheimer's. But with the increase in genetic …