The human heart makes precious few new cells but manages to generate billions of life-sustaining beats as it grows old.  Now research conducted in fruit flies, rats and monkeys by researchers at Johns Hopkins University, San Diego State University, Cedars-Sinai Medical Center, the National Institute on Aging and Sanford-Burnham reveals that levels of a protein called vinculin increase with age to alter the shape and … Continue reading Researchers identify protein that protects heart function into old age.