The selective nature of the drug makes it preferable to other stress agents such as adenosine, which are less selective and therefore cause more side-effects. Regadenoson was approved by the United States Food and Drug Administration on April 10, 2008 and is marketed by Astellas Pharma under the tradename Lexiscan.
Human capital flight, sometimes called brain drain, refers to the emigration of intelligent, well-educated individuals for better pay or conditions, causing their places of origin to lose skilled people, or brains..
Dr. Maiken Nedergaard and her colleagues at the University of Rochester Medical Center recently discovered a system that drains waste products from the brain. Cerebrospinal fluid, a clear liquid surrounding the brain and spinal cord, moves through the brain along a series of channels that surround blood vessels. The system is managed by the brainâs glial cells, and so the researchers called it the glymphatic system.