Welding (IMAGE) Washington University School of Medicine Caption Welding fumes may increase risk of damage to the same brain area harmed by Parkinson's disease, researchers at Washington University School of Medicine in St. Louis have found. Credit Michael C. Purdy Usage Restrictions Please credit photographer. 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.