Brain Vasculature (image) University of Iowa Caption This image shows the high density of blood vessels in the brain and the close proximity of brain cells to those vessels. A cut-away of one blood vessel shows vessel lining cells (endothelia -- red). Davidson and colleagues transformed these cells into enzyme production factories and showed that enzyme produced there entered the brain and corrected diseased cells. Credit Mary Moye-Rowley Usage Restrictions For permission to use this image please contact Jennifer Brown at email@example.com Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.