What role does Östradiol play in Allergie?

Estradiol, the primary form of estrogen, modulates immune function and can influence allergic responses. It affects T-helper cell differentiation, potentially promoting a Th2-dominant profile that favors IgE production and allergic inflammation. Some studies link higher estradiol levels to increased severity of asthma and allergic rhinitis, while others suggest protective effects depending on timing, dose, and individual genetics. The evidence is mixed and not strong enough for clinical recommendations. Consumer hormone tests (e.g., MyBody-X) measure estradiol but cannot diagnose allergies or predict individual responses. A single measurement has limited value due to cyclical fluctuations and complex immune interactions. For allergy assessment, validated clinical tests (skin prick, specific IgE) and specialist evaluation are essential.