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Plasma neuropeptide pattern in acute idiopathic urticaria
A Hernanz1, G Muelas, J Borbujo
1Servicios de Bioquímica, Hospital La Paz del Insalud, Madrid, España.
International Archives of Allergy and Applied Immunology
|January 1, 1989
Summary
Acute urticaria involves neuropeptide release. Studies show decreased vasoactive intestinal peptide (VIP) and beta-endorphin, but increased somatostatin and bombesin in patients, suggesting altered neuropeptide metabolism.
Area of Science:
- Immunology
- Neuroendocrinology
- Dermatology
Background:
- Immediate hypersensitivity reactions, like acute urticaria, involve neuropeptide release from nerve endings.
- These neuropeptides interact with immune cells such as mast cells and basophils.
Purpose of the Study:
- To investigate the levels of specific neuropeptides in patients with acute idiopathic urticaria.
- To compare neuropeptide profiles in urticaria patients versus healthy controls.
Main Methods:
- Radioimmunoassay was used to measure plasma levels of vasoactive intestinal peptide (VIP), somatostatin, bombesin, neurotensin, and beta-endorphin.
- Samples were analyzed from 20 patients with acute idiopathic urticaria and 20 healthy subjects.
Main Results:
- Vasoactive intestinal peptide (VIP) and beta-endorphin levels were significantly lower in urticaria patients compared to controls (p < 0.001 and p < 0.01, respectively).
- Somatostatin and bombesin levels were significantly higher in urticaria patients than in controls (p < 0.001 and p < 0.05, respectively).
Conclusions:
- The findings suggest altered neuropeptide release and metabolism in acute urticaria.
- Increased somatostatin and bombesin may reflect heightened release, while decreased VIP and beta-endorphin could indicate increased metabolism.