The power of plasma – BY LIAM DREW

Alzheimer’s disease and aging brains could benefit from therapies based on blood’s liquid component.

Blood plasma seems an unlikely place in which to find a cure for Alzheimer’s disease. But neuroscientists increasingly appreciate that the brain and the circulatory system have a more intricate relationship than
was previously acknowledged. And with more than 1,000 liters of blood passing through the brain of an adult each day, the plasma — blood’s lemon-curd-colored liquid component — is instrumental in shaping the biochemical environment in which neurons exist. Currently, two teams, inspired by distinct facets of plasma’s nature, are working towards new therapies for Alzheimer’s disease.

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