Abstract
The influence of lead (Pb[CH3COO]2), mercury (HgCl2), cadmium (CdSO4) and bismuth (BiO[ClO4]) on the spontaneous and stimulated histamine release from human adenoidal and cutaneous mast cells was tested in the concentration range 10−8–10−4 M. Lead displayed a bell shaped dose-response relationship in adenoidal mast cells with a maximum at 10−6 M whereas in cutaneous cells only the spontaneous release was slightly enhanced at 10−4 M. Mercury induced a presumably toxic histamine release in adenoidal and cutaneous mast cells at 10−4 M. Cadmium increased the histamine release in adenoidal cells at 10−4 M but in cutaneous cells only the stimulated release (10−8–10−5 M) was affected. Bismuth inhibited the histamine release at 10−4 M in the adenoidal mast cells only. In conclusion, human adenoidal and cutaneous mast cells are affected differently by metal ions.
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