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Plasma histamine levels in normal and atopic children
T Fujisawa1, M Komada, K Iguchi
1Department of Pediatrics, Mie National Hospital, Mie Prefecture, Japan.
Summary
Children with atopic disease have higher plasma histamine levels, which correlate with disease severity. These findings highlight histamine
Area of Science:
- Pediatric Allergy and Immunology
- Clinical Chemistry
Background:
- Histamine is a key mediator in allergic reactions.
- Understanding histamine levels in children is crucial for diagnosing and managing atopic conditions.
Purpose of the Study:
- To determine normal plasma histamine levels in children across different age groups.
- To investigate the relationship between plasma histamine levels and atopic disease severity.
- To explore correlations between plasma histamine, basophil count, and immunoglobulin E (IgE) in children.
Main Methods:
- Plasma histamine was quantified in 258 children using high-performance liquid chromatography (HPLC).
- Age-specific normal histamine levels were established.
- Histamine levels were compared between atopic and non-atopic children.
- Correlations with clinical parameters were analyzed.
Main Results:
- Normal plasma histamine levels decreased with age.
- Atopic children exhibited significantly higher plasma histamine levels compared to normal children.
- A positive correlation was observed between the extent of atopic disease and plasma histamine levels.
- Significant correlations between plasma histamine and basophil count/IgE were found in atopic children, but not in normal children.
Conclusions:
- Plasma histamine levels serve as a potential biomarker for atopic disease in children.
- Age-dependent reference ranges for plasma histamine are important.
- The study confirms the involvement of histamine in the pathophysiology of atopic conditions in pediatric populations.