title: Mechanisms of immediate allergic reactions.
mesh_terms: D000906:Antibodies; D000937:Antigen-Antibody Reactions; D001665:Binding Sites; D001792:Blood Platelets / Q000276:immunology; D003165:Complement System Proteins; D004789:Enzyme Activation; D006636:Histamine Release; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000276:immunology*; D007120:Immunochemistry; D007073:Immunoglobulin E; D007136:Immunoglobulins; D007962:Leukocytes / Q000276:immunology; D010323:Passive Cutaneous Anaphylaxis; D011485:Protein Binding; D012882:Skin Tests; D005719:gamma-Globulins
chemical_list: D000906:Antibodies; D007136:Immunoglobulins; D005719:gamma-Globulins; D007073:Immunoglobulin E; D003165:Complement System Proteins