Cambridge, MA, May 9, 2013 - Two Harvard Stem Cell Institute researchers – one a stem cell biologist and one a practicing cardiologist at Brigham and Women's Hospital – have identified a protein in the blood of mice and humans that may prove to be the first effective treatment for the form of age-related heart failure that affects millions of Americans.
When the protein, called GDF-11, was injected into old mice, which develop thickened heart walls in a manner similar to aging humans, the hearts were reduced in size and thickness, resembling the healthy hearts of younger mice.