Atopy

Atopy

Overview

Atopy is characterized by an excessive immunoglobulin E (IgE) immunological response to apparently innocuous environmental substances. Allergic disorders are clinical symptoms of such atypical, atopic reactions.

When having atopy, the immune system is more susceptible to typical allergy triggers that the individuals have inhaled or ingested. As a result, those who are impacted have a stronger-than-normal sensitivity to allergens such as dust, pollen, peanuts, or shellfish.

Atopy may be inherited, however contact with the allergen or irritant must occur before the hypersensitivity reaction may begin (characteristically after re-exposure). In utero maternal psychological stress may also be a powerful predictor of atopy development.