Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2000-5-9
pubmed:abstractText
Recently, 5-hydroxy-L-tryptophan (5-OHTrp) has been promoted as an alternative to banned L-tryptophan as a dietary supplement. It has been claimed to help alleviate obesity, insomnia, depression, and headaches. However, eosinophilia-myalgia syndrome (EMS)-like symptoms have also been associated with ingestion or exposure to 5-OHTrp. HPLC-UV analysis of EMS-implicated 5-OHTrp revealed the presence of peak X, described as case-implicated. We show that peak X is actually a family of contaminants with the same molecular weight (234 Da) and similar HPLC retention times. We also demonstrate that all eight samples of commercially available 5-OHTrp analyzed by HPLC-MS contained three or more contaminants of the peak X family. The significance of these findings is discussed.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0065-2598
pubmed:author
pubmed:issnType
Print
pubmed:volume
467
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
461-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Eosinophilia-myalgia syndrome case-associated contaminants in commercially available 5-hydroxytryptophan.
pubmed:affiliation
Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't