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  2. 5-hour Energy - Wikipedia

    en.wikipedia.org/wiki/5-hour_Energy

    It contains no sugar, instead providing the stimulant caffeine and the psychoactive dopamine precursor amino acids tyrosine and phenylalanine. [3] According to an article in Consumer Reports , 5-hour Energy should be avoided by children under the age of 12 and as well as nursing or pregnant women.

  3. Aromatic amino acid - Wikipedia

    en.wikipedia.org/wiki/Aromatic_amino_acid

    Tyrosine is semi-essential; therefore, it can be synthesized by the animal, but only from phenylalanine. Phenylketonuria, a genetic disorder that occurs as a result of the inability to breakdown phenylalanine, is due to a lack of the enzyme phenylalanine hydroxylase. A dietary lack of tryptophan can cause stunted skeletal development. [9]

  4. Phenylalanine - Wikipedia

    en.wikipedia.org/wiki/Phenylalanine

    Phenylalanine ball and stick model spinning. Phenylalanine (symbol Phe or F) [3] is an essential α-amino acid with the formula C 9 H 11 NO 2.It can be viewed as a benzyl group substituted for the methyl group of alanine, or a phenyl group in place of a terminal hydrogen of alanine.

  5. Everything You Need To Know about Tyrosine - AOL

    www.aol.com/lifestyle/everything-know-tyrosine...

    Tyrosine is an amino acid made by the body. It may boost cognitive function, especially during periods of stress. Many foods contain tyrosine. Skip to main content. 24/7 Help. For premium support ...

  6. Tyrosine - Wikipedia

    en.wikipedia.org/wiki/Tyrosine

    Tyrosine ball and stick model spinning. L-Tyrosine or tyrosine (symbol Tyr or Y) [2] or 4-hydroxyphenylalanine is one of the 20 standard amino acids that are used by cells to synthesize proteins. It is a conditionally essential amino acid with a polar side group.

  7. Tetrahydrobiopterin deficiency - Wikipedia

    en.wikipedia.org/wiki/Tetrahydrobiopterin_deficiency

    Phenylalanine is an amino acid obtained normally through the diet, but can be harmful if excess levels build up, causing intellectual disability and other serious health problems. In healthy individuals, it is metabolised ( hydroxylated ) into tyrosine , another amino acid, by phenylalanine hydroxylase .

  8. Tyrosinemia - Wikipedia

    en.wikipedia.org/wiki/Tyrosinemia

    It is a 4-hydroxyphenylpyruvate dioxygenase inhibitor indicated for the treatment of hereditary tyrosinemia type 1 (HT-1) in combination with dietary restriction of tyrosine and phenylalanine. [7] Liver transplant is indicated for patients with tyrosinemia type I who do not respond to nitisinone, as well as those with acute liver failure and ...

  9. Phenylpropanoid - Wikipedia

    en.wikipedia.org/wiki/Phenylpropanoid

    The phenylpropanoids are a diverse family of organic compounds that are biosynthesized by plants from the amino acids phenylalanine and tyrosine in the shikimic acid pathway. [1] Their name is derived from the six-carbon, aromatic phenyl group and the three-carbon propene tail of coumaric acid , which is the central intermediate in ...

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