Dynamics of the humoral immunity indices in children with phenylketonuria against a background of diet therapy and after its discontinuance

The paper concerns variations in some parameters of humoral immunity in children with phenylketonuria examined at varying time (in the presence of specific dietetics and after its discontinuation). It is concluded that in children over 5 years of age, the hyperphenylalaninemia newly occurring after discontinuation of dietetics does not exert any material effect on the function of the mature enough immune system.