One-and-Done Gene Therapy (image) NIH/National Institute of Neurological Disorders and Stroke Share Print E-Mail Caption Injecting a shot of genes into the brain's ventricular plumbing system may be an effective long term method for treating Batten disease. Credit Courtesy of Davidson lab, University of Pennsylvania, PA Usage Restrictions For educational purposes only. Share Print E-Mail 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.