Cellular Chernobyl (VIDEO) University of Pittsburgh This video is under embargo. Please login to access this video. Caption Oxidative stress damage to mitochondria kicks off a chain reaction that spews pollutants into the cell, shortens telomeres and leads to premature aging. Credit Tim Betler/UPMC 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.