Nearly 1.6 billion people worldwide suffer from anemia, and for the first time new research points to how resistance emerges to the drug dexamethasone used to treat the devastating inherited form of anemia known as Diamond Blackfan anemia (DBA). The Feinstein Institutes for Medical Research professor and expert in disorders of the red cell Lionel Blanc, PhD, published his conclusions today in the Journal of Clinical Investigation (JCI).