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12 results
  1. 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
    ... 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 ...
  2. 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
    ... aromatic L-amino acids including 3,4-dihydroxyphenylalanine, 5- hydroxytryptophan, tryptophan, tyrosine, phe- nylalanine, histidine and kynurenine. Substrate- ...
  3. 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
    ... 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. ...
  4. NLM Digital Collections - Compliance policy for certain compounding of oral oxitriptan (5-HTP) drug products for ... 
    Publication: Silver Spring, MD : Center for Drug Evaluation and Research, July 2019
    5-Hydroxytryptophan -- therapeutic use ... and Drug Administration. United States. Drug Compounding -- standards 5-Hydroxytryptophan -- therapeutic use Phenylketonurias -- drug therapy Guideline Adherence Humans ...
  5. ... methy] transferase, the melatonin-synthesizing enzyme, 1+ and 5-hydroxytryptophan decarboxylase in the pineal gland are affected by ... gland. Constant light exposure elevates the activity of 5-hydroxytryptophan decarboxylase, the ser- otonin-forming enzyme, in the ...
  6. ... of serotonin is the hydroxylation of tryptophan to 5-hydroxytryptophan, catalyzed by the enzyme tryptophan hydroxylase, and, since ...
  7. NLM Digital Collections - Review of intramural research (1966) 
    Publication: [Bethesda, Md.] : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health
    ... pathway to dehydrobufotenine consists of decarboxyla- [ tion of 5-hydroxytryptophan to serotonin,} followed by consecutive N-methylations to ...
  8. NLM Digital Collections - Metabolism of Epinephrine and Other Sympathomimetic Amines 
    Publication: American Physiological Society (1887- ), 1959
    ... tryptophan in the body (154). Although tryptophan and 5-hydroxytryptophan form serotonin in man, tryptamine does not (152), ...
  9. NLM Digital Collections - The Pineal Gland 
    Publication: Scientific American, July 1965
    ... to make melatonin from an amino acid precursor, 5-hydroxytryptophan, which it obtains from the bloodstream. It was ...
  10. ... pH 7 it polymerizes aromatic amino acid esters. 5-hydroxytryptophan € Application for Research Contract - Part III Ra@iation, ...
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