| Literature DB >> 6177216 |
A Truneh, J R White, F L Pearce.
Abstract
The anti-histaminic drugs ketotifen and oxatomide have a dual effect on rat peritoneal mast cells. At high concentrations they induce histamine release, whereas at low concentrations they inhibit secretion evoked by IgE-directed ligands. The latter effect is observed in the presence and absence of exogenous calcium. The significance of this result for the general mode of action of anti-anaphylactic drugs is discussed. Neither compound liberates histamine from isolated mesenteric cells from the rat or guinea pig, further emphasizing the functional heterogeneity of mast cells from different sources.Entities:
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Year: 1982 PMID: 6177216 DOI: 10.1007/BF01965147
Source DB: PubMed Journal: Agents Actions ISSN: 0065-4299