HCI Histamine Clearance Index Interpretive Guide
The Histamine Clearance Index evaluates the efficiency of histamine clearance, which can provide insight into diamine oxidase (DAO) activity and inhibition.
- Histamine is a bioactive amine derived from the amino acid histidine. It is primarily produced in mast cells and basophils and released into surrounding tissues upon degranulation. Beyond endogenous production, dietary sources and microbial metabolism in the gut can substantially influence total histamine load.
- When histamine levels exceed the body’s capacity for breakdown and clearance, patients may experience symptoms of what is commonly referred to as histamine intolerance.
- DAO activity can be influenced by a variety of factors, including genetics, gastrointestinal conditions, and medication use.
Clinical considerations and therapeutic approaches...
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