[Histamine degrading enzymes in atopic eczema]

Increased plasma histamine levels were associated with significantly lowered diamine and type B monoamine oxidase activities in platelet rich plasma of atopic eczema (AE) patients. The diamine oxidase has almost normal cofactor levels (pyridoxal phosphate and Cu2+) but the cofactor levels for type B monoamine oxidase (flavin adenine dinucleotide and Fe2+) are lowered.