Diamine oxidase (DAO, histaminase) (Engl. diamine oxidase) is a copper-containing enzyme (it contains two copper atoms in the active site and has vitamin B6 as a cofactor) that can degrade histamine and other biogenic amines (such as; cadaverine, feruloylputresine, dopamine, phenethylamine/phenylethylamine, putrescine, serotonin, spermidine, spermine, synnephrine, tryptamine, tyramine, norepinephrine, etc.). A deficiency of DAO is … Diamine Oxidase (DAO)
The IgG test (IgG/IgG4 test) is a laboratory medicine procedure that can be used to diagnose food intolerance. With the help of the test procedure it should be possible to draw conclusions about IgG-mediated reactions of type III according to Coombs and Gell. Almost any food can lead to an antibody-mediated immune response in many … IgG/IgG4 Test
Immunoglobulins are a group of proteins (albumen) formed in plasma cells that specifically bind as antibodies with foreign substances (antigens) to render them harmless. The following classes of immunoglobulins can be distinguished: Immunoglobulin A (IgA) – secreted on all mucous membranes of the respiratory tract, eyes, gastrointestinal tract, genitourinary tract, and via special glands around … Immunoglobulin E (IgE)
Tryptase (mast cell tryptase) is a protease (enzyme that can cleave proteins) stored and released by mast cells in the granules. Tryptase is released into the circulation along with histamine during abrupt mast cell degranulation, as occurs in anaphylactic and anaphylactoid reactions (anaphylaxis). Mast cells are thus the primary effector cells of the allergic reaction. … Tryptase
