Hyperphenylalaninemia

Hyperphenylketonuria (hyperphenyl-alanic acid) is a recessively inherited genetic defect in which the body cannot absorb phenylethylamine, an intermediate product of phenylalkylamine metabolism during its biotransformation into phenylethylamine-Si-an. Hyperphenylcannimia is usually determined by urinalysis.\n\nHyperphenylcannimia can be treated with a diet enriched with leucine, phenylamine, or threonine. When eating leucine, phenylalanline metabolism becomes normal and all severe symptoms, such as mental retardation and attention deficit, disappear.\n\