Scientists discover and visualize the astonishing capability of microglia, macrophages circulating in the brain, to repair broken blood vessels. This finding may open up new avenues for treatment of hemorrhagic strokes and brain microbleeds associated with dementia and cognitive decline.
Every four minutes, a person dies from a stroke in the US. A staggering 15 million people worldwide suffer from an occurrence of this disease every year. Strokes are thus incredibly common and extremely serious. The majority of these strokes is caused by a disruption of the blood flow to the brain, and therapy approaches using pluripotent stem cells show much promise. However, about 13% of strokes are hemorrhagic in nature, where brain blood vessels rupture and blood flows freely into the brain tissue.