The scholarly study has been led by Marc Mayberg.

$1.4 million to investigate how strokes and other events that take off blood flow to the mind disrupt the blood-brain barrier The Cleveland Clinic has been awarded a four-year, $1 avanafil .4 million grant from the National Institutes of Health to research how strokes and other events that cut off blood flow to the brain disrupt the blood-brain barrier. Researchers hope to use their findings to develop new solutions to limit the damage caused by such events. The scholarly study has been led by Marc Mayberg, M.D.D., director of the Cerebrovascular Analysis Laboratory. The blood-brain barrier regulates the transportation of chemicals between circulating blood and the brain.