The role of COMT (catechol-O-methyltransferase) in allergies is not well established. COMT primarily metabolizes catecholamines (e.g., dopamine, epinephrine) and estrogen metabolites, not histamine – the main mediator of allergic reactions. Some studies have examined COMT polymorphisms (e.g., Val158Met) in asthma or atopic dermatitis, but results are inconsistent and limited to small effect sizes or subgroups. The evidence does not support clinical recommendations. In practice, COMT is not routinely included in allergy testing. A genetic test for COMT variants without accompanying symptoms or family history is not actionable. The provided context contains no specific information on COMT and allergies, so this answer is based on general medical knowledge. Evidence: unclear, as no direct studies or guidelines can be cited. Safety note: avoid overinterpreting SNP results without medical consultation.
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