Scientists uncover how Alzheimer's may quietly begin years before memory loss appears

A new Columbia study has found clues of Alzheimer's beginnings, revealing how tau filaments—protein clumps that are closely linked to memory decline in Alzheimer's disease—get their start. The finding raises the prospect of future Alzheimer's drugs that could stop the production of the filaments at its source. The findings are published in the journal Nature Neuroscience.