Anaphylaxis is mediated by
(A) 5-hydroxytryptamine (B) Heparin (C) ProstaglandinImmunology (D) All of these
(D) Answer- D. All of these* Primary mediators (These are present in mast cell granules) Includes:* Biogenic Amines :- Histamine, 5-Hydroxytryptamine* Proteoglycans : Heparin* Secondary mediators:* Leukotrienes :- LTC4 D4,V* Cytokines:- ILl,lLg,lL4,IL-5, IL4 TNF and GMCSF