Sentence Examples


  • In more detail, PKU mutations can involve many different types of changes, such as deletions and insertions, in the DNA of the gene that codes for the PAH enzyme.
  • Phenylketonuria (PKU) is a rare metabolic disorder caused by a deficiency in the production of the hepatic (liver) enzyme phenylalanine hydroxylase (PAH).
  • A carrier does not display any symptoms of the disease because the carrier's liver produces normal quantities of the PAH enzyme.
  • Mutations in the PAH gene prevent the liver from producing adequate levels of the PAH enzyme needed to break down phenylalanine.
  • A lack of PAH results in the buildup of abnormally high phenylalanine concentrations (or levels) in the blood and brain.