Stars form inside relatively dense concentrations of interstellar gas and dust known as molecular clouds. These regions are extremely cold (temperature about 10 to 20K, just above absolute zero). At these temperatures, gases become molecular meaning that atoms bind together.
Histamine intolerance is due to a (temporary) deficiency or an inhibition of the enzyme diamine oxidase (DAO). DAO is the enzyme responsible for the degradation of histamine.Although DAO is virtually found in the whole body, the bowels constitute its most important site of action.he histamine intolerance test measures the activity of the DAO contained in the blood, since the DAO circulates through the body in the blood. The blood is mixed with a substance similar to histamine and the degradation of this substance is measured.
Enzyme activity of diamine oxidase (DAO) in the blood plasma or serum. Some labs to give to determine the enzyme activity of diamine oxidase (DAO). This designation may be misleading. Measured is in fact usually the DAO concentration in blood plasma or blood serum (DAO level).ith a genetic defect of the DAO gene, for example, the enzyme can be produced in normal amounts, but functionally reduced or be inoperable and, therefore, in an extreme case having 0 enzyme activity despite normal DAO concentration.