Scientists probe why Life-Saving insulin turns against some patients

This study aimed to better understand and diagnose insulin allergies, a rare but serious problem where a person's body reacts badly to the insulin they need to manage diabetes. Researchers worked with 55 adults who had diabetes—some with insulin allergies and some without—to test skin reactions to different insulins and study the body's immune response. The goal was to create a reliable way to identify these allergies and learn what causes them at a cellular level.