Cat with HCM (IMAGE) University of California - Davis Caption UC Davis veterinarians identified Lizard, the cat pictured above, as having hypertrophic cardiomyopathy, a heart disease that affects 1 in 7 cats. He was part of the study examining how a cat's DNA alters how it responds to a commonly prescribed medication to prevent blood clots in cats with HCM. Credit UC Davis School of Veterinary Medicine Usage Restrictions Please credit. 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.