title: The activity of compounds extracted from feverfew on histamine release from rat mast cells.
abstract: An extract of the plant feverfew (Tanacetum parthenium) produces a dose-dependent inhibition of histamine release from rat peritoneal mast cells stimulated with anti-IgE or the calcium ionophore A23187. Greater inhibition of anti-IgE-induced histamine release was achieved with feverfew compared with the inhibition of A23187-induced release. Inhibition of anti-IgE-induced histamine release by feverfew extract was observed when the drug was added simultaneously with anti-IgE and the inhibitory activity increased only slightly when the drug was preincubated with the cells for 5 min before anti-IgE stimulation. In this respect feverfew differs from cromoglycate and quercetin. Feverfew extract inhibited anti-IgE-induced histamine release to the same extent in the absence and presence of extracellular glucose. It is concluded that feverfew extract contains a novel type of mast cell inhibitor.
mesh_terms: D000818:Animals; D000001:Calcimycin / Q000494:pharmacology; D006636:Histamine Release / Q000187:drug effects*; D007073:Immunoglobulin E / Q000276:immunology; D066298:In Vitro Techniques; D008297:Male; D008407:Mast Cells / Q000187:drug effects / Q000378:metabolism*; D010936:Plant Extracts / Q000494:pharmacology; D010946:Plants, Medicinal / Q000032:analysis*; D011794:Quercetin / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D010936:Plant Extracts; D007073:Immunoglobulin E; D000001:Calcimycin; D011794:Quercetin