What role does IgE play in Langlebigkeit?

The role of IgE in longevity is not scientifically established. IgE is primarily known as the antibody mediating immediate allergic reactions and defense against parasites. In the context of 'inflammaging' – chronic low-grade inflammation with age – IgE could theoretically contribute to systemic immune activation via allergic inflammation. However, robust longitudinal studies directly linking IgE levels to lifespan are lacking. Existing evidence comes mostly from allergy research and epidemiological observations, not from longevity studies. Elevated total IgE may indicate allergies or parasitic infections, but without clinical context, its predictive value for life expectancy is low. MyBody-X tests measure IgE for allergy diagnostics, not longevity. Caution against overinterpretation: single IgE values do not reflect inflammatory status or aging processes. For longevity, established markers like CRP, IL-6, or HbA1c are more relevant. Conclusion: IgE currently has no confirmed role in longevity research; evidence is unclear and based on mechanistic assumptions.