Neuroscience

Light and genetic probes untangle dynamics of brain blood flow

While the human brain has over 400 miles of total vasculature, little is known about the tiny capillaries that make up much of this intricate labyrinth of blood vessels critical for delivering oxygenated blood and nutrients ...

Neuroscience

Cocoa flavanols may boost memory in older people

A clinical trial has shown that in older people, a diet supplemented with cocoa flavanols– naturally occurring compounds found in cocoa beans—may improve performance on a specific memory task. The study is published on ...

Medical research

Some neurons target tiny cerebral blood vessel dilation

Neurons control blood flow in tiny vessels in the brain, but researchers know little about this relationship. Now a team of Penn State engineers has found a connection between nitric oxide expressing neurons and changes in ...

Biomedical technology

Video: The brain during a heart attack

State-of-the-art photoacoustic microscopy (imaging using the heat given off by lasers) shows the blood flow in a mouse brain before, during, and after cardiac arrest, showing the drastic change in the brain's blood flow when ...

Medical research

Protein in blood may predict prognosis, recovery from stroke

Researchers at Mayo Clinic in Florida and collaborators have found that a biomarker in the blood may determine the extent of brain injury from different types of strokes and predict prognosis in these patients. Their findings ...

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