New tools used to gauge dangerous atherosclerotic plaque; Can macrophages act as the brain's janitors?;

> Investigators at the Boston University School of Medicine and the University of California, San Diego, have been developing new tools to identify atherosclerotic plaques that carry a higher risk of strokes or heart attacks. Release

> Researchers in Germany are studying whether macrophages can be moved to the brain and used to help clear waste from the brains of people who suffer from Alzheimer's. Release

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