High arachis hypogaea allergen 2 immunoglobulin E levels predict responses to exposure to a small amount of peanut protein.

The article discusses a study which suggests that arachis hypogaea allergen 2 (Ara h 2) immunoglobulin E levels could predict severity of peanut allergies. The study found that the food-specifc immunoglobulin (IgE) concentrations could be used to predict the peanut exposure threshold dose among children with suspected peanut allergies.