Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search help
24 results
  1. Sepiapterin Reductase Deficiency - GeneReviews® - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK304122
    ... amino acid decarboxylase deficiency [ Brun et al 2010 ]). 5-hydroxytryptophan (5-HTP) (1-6 mg/kg/day) also ...
  2. Aromatic L-Amino Acid Decarboxylase Deficiency - GeneReviews® - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK595821
    ... 3-O-methyldopa (3-methoxytyrosine; 3-OMD), and 5-hydroxytryptophan (5-HT). Plasma neurotransmitter (untargeted metabolomics) profile typically ... L-3,4-dihydroxyphenylalanine (DOPA) to dopamine, L-5-hydroxytryptophan to serotonin, and L-tryptophan to tryptamine [ Bertoldi ...
  3. Gastrointestinal Neuroendocrine Tumors Treatment (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK65791
    ... the radioactive-labeled serotonin precursor carbon C 11-5-hydroxytryptophan (11C-5-HTP). With 11C-5-HTP, tumor ... Garske U, et al.: Whole-body (11)C-5-hydroxytryptophan positron emission tomography as a universal imaging technique ...
  4. SGCE Myoclonus-Dystonia - GeneReviews® - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK1414
    ... especially helpful for cervical dystonia. Improvement with L-5-hydroxytryptophan, L-dopa, and the salt of sodium oxybate ... Berardelli & Curra 2002 ]. Improvement of dystonia with L-5-hydroxytryptophan has been reported [ Scheidtmann et al 2000 ]. Improvement ...
  5. NLM Digital Collections - Review of intramural research (1960) 
    Publication: [Bethesda, Md.] : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health
    resource.nlm.nih.gov/0141176X2
    ... aromatic L-amino acids including 3,4-dihydroxyphenylalanine, 5- hydroxytryptophan, tryptophan, tyrosine, phe- nylalanine, histidine and kynurenine. Substrate- ...
  6. NLM Digital Collections - Review of intramural research (1962) 
    Publication: [Bethesda, Md.] : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health
    resource.nlm.nih.gov/0141176X4
    ... such as a-methyl-dopa and a-methyl 5-hydroxytryptophan, are excellent in- hibitors of the decarboxylation of ... ipatient wtih metastatic gastric carcinoid with excretion of 5-hydroxytryptophan and large amounts of histamine in the urine. ...
  7. NLM Digital Collections - Review of intramural research (1965) 
    Publication: [Bethesda, Md.] : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health
    resource.nlm.nih.gov/0141176X5
    ... serotonin is the hydroxylation of tryptophan to form 5-hydroxytryptophan. A tryptophan hydroxy- lase has been partially purified ... The conversion of tritiated precursors such as tryptophan, 5-hydroxytryptophan, N- methylserotonin and bufotenine in the toad (Bufo ...
  8. PLPBP Deficiency - GeneReviews® - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK589231
    ... 3/9 High L-dopa 1/9 High 5-hydroxytryptophan 2/9 Low PLP 2/3 Low PL ...
  9. Excluded Studies - Acute Treatments for Episodic Migraine - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK566247
    ... Sicuteri F. The ingestion of serotonin precursors (L-5-hydroxytryptophan and L-tryptophan) improves migraine headache. Headache. 1973 ...
  10. Melatonin for Treatment of Sleep Disorders: Summary - AHRQ Evidence Report Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK11941
    ... the synthesis of melatonin, tryptophan is hydroxylated to 5‐hydroxytryptophan, which in turn is decarboxylated to 5‐hydroxytryptamine ( ...
previous · 1 · 2 · next