In response to van Spronsen et al (2009) phenylalanine tolerance can already reliably be assessed at the age of 2 years in patients with PKU (J Inherit Metab Dis 32: 27-31).
Ponzone
Alberto
A
Mussa
Alessandro
A
Porta
Francesco
F
D000367:Age Factors; D002675:Child, Preschool; D004361:Drug Tolerance; D006801:Humans; D010649:Phenylalanine / Q000097:blood / Q000627:therapeutic use*; D010651:Phenylalanine Hydroxylase / Q000172:deficiency / Q000235:genetics; D010661:Phenylketonurias / Q000097:blood / Q000175:diagnosis* / Q000188:drug therapy*; D011379:Prognosis; D015203:Reproducibility of Results; D016896:Treatment Outcome
D010649:Phenylalanine; D010651:Phenylalanine Hydroxylase