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Results 1 - 4 of 4 for Phenylalanine
  1. Phenylketonuria 
    ... that increases the levels of a substance called phenylalanine in the blood. Phenylalanine is a protein building block (an amino acid) ... some artificial sweeteners. If PKU is not treated, phenylalanine can build up to harmful levels in the ...
    https://medlineplus.gov/genetics/condition/phenylketonuria - Genetics
  2. Sepiapterin reductase deficiency 
    Sepiapterin reductase deficiency is a condition characterized by movement problems, most often a pattern of involuntary, sustained muscle contractions known as dystonia. ...
    https://medlineplus.gov/.../sepiapterin-reductase-deficiency - Genetics
  3. Tetrahydrobiopterin deficiency 
    ... levels of several substances in the body, including phenylalanine. Phenylalanine is a building block of proteins (an amino ... and in some artificial sweeteners. High levels of phenylalanine are present from early infancy in people with ...
    https://medlineplus.gov/.../condition/tetrahydrobiopterin-deficiency - Genetics
  4. Alkaptonuria 
    ... This enzyme helps break down the amino acids phenylalanine and tyrosine, which are important building blocks of ... substance called homogentisic acid, which is produced as phenylalanine and tyrosine are broken down, accumulates in the ...
    https://medlineplus.gov/genetics/condition/alkaptonuria - Genetics