Alzheimer's disease & dementia

Scientists identify molecular trigger for Alzheimer's disease

Researchers have pinpointed a catalytic trigger for the onset of Alzheimer's disease – when the fundamental structure of a protein molecule changes to cause a chain reaction that leads to the death of neurons in the brain.

Neuroscience

Going places: Rat brain 'GPS' maps routes to rewards

While studying rats' ability to navigate familiar territory, Johns Hopkins scientists found that one particular brain structure uses remembered spatial information to imagine routes the rats then follow. Their discovery has ...

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