New evidence in animals about hormones that regulate blood pressure and heart function could lead to better treatments for humans after heart attacks, say researchers from Wake Forest University Baptist Medical Center. “We’ve learned more about the complex system of enzymes and hormones that regulates the cardiovascular system,” Carlos Ferrario, M.D., director of the Hypertension and Vascular Disease Center and lead author of the study, reported in the on-line edition of Hypertension. “We believe this new knowledge could lead to more effective drugs with fewer side effects.”