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Tyrosine, an amino acid, is a precursor to the neurotransmitter dopamine. It is converted to L-DOPA by the enzyme tyrosine hydroxylase.[citation needed]

It is also a precursor to the thyroid hormones triiodothyronine (T3) and thyroxine (T4)

Tyrosine and its precursor phenylalanine are required for the synthesis of coenzyme Q10

ME/CFS[edit | edit source]

Reduced levels of plasma tyrosine have been found in ME/CFS patients.[1][2]

References[edit | edit source]

  1. Georgiades, Evelina; Behan, Wilhelmina M. H.; Kilduff, Liam P.; Hadjicharalambous, Marios; Mackie, Eileen E.; Wilson, John; Ward, Susan A.; Pitsiladis, Yannis P. (Aug 2003). "Chronic fatigue syndrome: new evidence for a central fatigue disorder". Clinical Science (London, England: 1979). 105 (2): 213–218. doi:10.1042/CS20020354. ISSN 0143-5221. PMID 12708966. 
  2. Jones, Mark G.; Cooper, Elizabeth; Amjad, Saira; Goodwin, C. Stewart; Barron, Jeffrey L.; Chalmers, Ronald A. (Nov 1, 2005). "Urinary and plasma organic acids and amino acids in chronic fatigue syndrome". Clinica Chimica Acta. 361 (1): 150–158. doi:10.1016/j.cccn.2005.05.023. ISSN 0009-8981. 

Myalgic encephalomyelitis or chronic fatigue syndrome, often used when both illnesses are considered the same.

The information provided at this site is not intended to diagnose or treat any illness.
From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history.