A Natural Treatment for Damaged Arteries? (video) University of Missouri-Columbia Loading video... Caption In a new study from the University of Missouri, a scientist has discovered a natural defense against arterial blockage: bilirubin. Credit Nathan Hurst/University of Missouri Usage Restrictions None 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.