| pharmacologic mediators of anaphylaxis | Substances released from mast (and other) cells by the reaction of antigen and specific homocytotropic antibody on their surfaces; they include histamine, slow-reacting substance of anaphylaxis (SRS-A), bradykinin, and (in some species of animals) serotonin. (05 Mar 2000) |
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| inflammation mediators | The endogenous compounds that mediate inflammation (autacoids) and related exogenous compounds including the synthetic prostaglandins (prostaglandins, synthetic). (12 Dec 1998) |