Researchers are peering more intensely down into the molecular and cellular foundations of human biology to study the evolution many of the world’s more debilitating diseases — and potential remedies for them. This high-precision approach is being employed by biomedical engineers and other health and medical experts like Fulton Schools Associate Professor David Brafman. He is exploring the molecular clues in stem cells, and ways to reprogram them, to attempt to produce knowledge that could lead to prevention or a cure for Alzheimer’s disease. Among other things, Brafman is experimenting with cutting-edge gene editing technologies in pursuit of his goal.