Share on PinterestCould boosting fetal hemoglobin help treat sickle cell disease? Westend61/Getty ImagesSickle cell disease develops due to a genetic mutation that affects hemoglobin in red blood cells.This modified version of hemoglobin carries less oxygen…

Heart attack: How can we regenerate damaged tissue?
Share on PinterestCould zebra fish help us design a way to repair damaged heart tissue? Reptile8488/Getty ImagesRemarkably, adult zebra fish can regenerate their hearts after sustaining injury. Scientists recently discovered a critical gene in zebra…