Blood Brain Barrier Breakdown (IMAGE) Albert Einstein College of Medicine Caption BBB breakdown: The slide at left, below, shows a brain section of a control (non-HIV-infected) mouse following exposure to LPS. Proteins (stained yellow) lining the BBB exhibit some breaks but are relatively uncompromised. Slide at right shows a brain section of a transgenic mouse (systemically infected with HIV) following exposure to LPS. Here the combination of HIV infection and LPS exposure has severely fragmented the proteins lining the BBB. Credit Albert Einstein College of Medicine Usage Restrictions None License Licensed content 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.