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… each species will allow to enter the brain through the blood-brain barrier. Rather than a broad-scale atlas, … both neural communication and the effectiveness of the blood brain barrier. But the study also pointed to … immune response and other factors may contribute to the blood-brain barrier becoming more permeable than it should …

… and brain immune cells called microglia, and causes brain blood vessels to widen. In a small sample of human volunteers … amyloid protein, cells called pericytes begin to constrict blood flow through capillaries of the brain, depriving cells … they follow, restoring fuller capillary diameter. The blood and lymphatic systems are not the only ways the brain …

… (green) and much lower levels of a protein associated with blood-brain barrier integrity (white) than in people who did … in the endothelial cells that constitute the brain’s blood vessels. The increased immune activity was strongly … correlated with a loss of proteins that help form the blood-brain barrier, which could interfere with the brain’s …

… in full 3D down to the precise alignment of individual blood vessels and neural axons (the long strands they extend … at the middle, or “meso” scale, it algorithmically traces blood vessels coming into one layer from adjacent layers and …

… which is to ensure the production of a wide variety of blood cells. “Inflammation is a major component of … in healthy mice the chemical successfully crossed the blood-brain barrier and remained in brain cells much longer …

… stem cells and then transforms those in to neurons, brain blood vessels, immune cells and more, creating powerful lab … disease, but also testing whether drugs can get across the blood-brain barrier that strictly filters what goes in or out …