Can BDNF help with Allergie?

Whether BDNF (Brain-Derived Neurotrophic Factor) can help with allergies is not scientifically well-established. BDNF is primarily known as a growth factor for neurons and plays a role in synaptic plasticity. Emerging research suggests BDNF is involved in immune modulation, particularly in allergic airway diseases like asthma. Some studies show elevated BDNF levels in asthmatic lungs, potentially contributing to inflammation. However, evidence is conflicting: some indicate pro-inflammatory effects, others protective. No high-quality clinical trials support BDNF as a treatment for allergies. Consumer DNA tests (e.g., MyBody-X) may analyze BDNF variants, but clinical relevance for allergies is unclear. Any effect would be indirect via inflammatory pathways. Currently, BDNF supplementation or genetic testing for allergy management lacks evidence. Established allergy treatments include allergen avoidance, antihistamines, and immunotherapy. The evidence for BDNF in allergies remains mechanistic and insufficient for recommendations.