Protein tweak may trigger Alzheimer’s

Unusual version of disease-linked amyloid-beta sows destruction in mouse brains

Scientists have caught tiny amounts of a strangely shaped protein — a relative of a well-known suspect in Alzheimer’s disease — spreading destruction throughout the brains of mice. If a similar process happens in the human brain, it could help explain how Alzheimer’s starts, and even suggest new ways to stop the dangerous molecule’s spread.