Effect of calcium mineral solutions on the histamine release from human peripheral leukocytes.

Histamine release from human peripheral leukocytes was studied in patients with urticaria, pollinosis, and psoriasis and compared with the release in normal healthy donors using anti-IgE or the calcium-ionophore A 23187 as stimuli in the presence of three calcium mineral solutions (Frubiase Calcium). It was observed that among 35 donors 29 revealed a calcium dependent inhibition of histamine release. The inhibition was also evident when calcium mineral solution was added to an ongoing histamine release. The membrane biochemical effects of calcium mediated inhibition are currently under investigation.