Fibrotic Fly Heart (IMAGE) Sanford Burnham Prebys Caption Cardiac fibrosis (shown in purple), a hallmark of heart disease, is clearly increased in fruit flies on a high-sugar diet (right), as compared to flies on a normal diet (left). Credit Sanford-Burnham Medical Research Institute Usage Restrictions Free to use in conjunction with this story only, using provided credit and caption 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.