DNA-PK (IMAGE) NIH/National Heart, Lung and Blood Institute Caption This is a 3-D image of the enzyme DNA-PK. A new study in animals shows that inhibiting this enzyme may help fight obesity. Credit NHLBI 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.