Cause of mysterious food allergy found, new treatment strategy suggested

A novel genetic and molecular pathway in the esophagus that causes eosinophillic esophagitis has been identified by researchers, opening up potential new therapeutic strategies for an enigmatic and hard-to-treat food allergy. The condition is triggered by allergic hypersensitivity to certain foods and an over-accumulation in the esophagus of white blood cells called eosinophils (part of the body's immune system).