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Eosinophilia–myalgia syndrome is a rare, sometimes fatal neurological condition linked to the ingestion of the dietary supplement L-tryptophan. [1] [2] The risk of developing EMS increases with larger doses of tryptophan and increasing age. [3]
Tryptophan ball and stick model spinning. Tryptophan (symbol Trp or W) [3] is an α-amino acid that is used in the biosynthesis of proteins.Tryptophan contains an α-amino group, an α-carboxylic acid group, and a side chain indole, making it a polar molecule with a non-polar aromatic beta carbon substituent.
Serious injuries and deaths caused by vaccines are very rare, [4] [5] and the idea that severe events are common has been classed as a "common misconception about immunization" by the WHO. [6] Some claimed vaccine injuries are not, in fact, caused by vaccines; for example, there is a subculture of advocates who attribute their children's autism ...
Indoxyl sulfate, also known as 3-indoxylsulfate and 3-indoxylsulfuric acid, is a metabolite of dietary L-tryptophan that acts as a cardiotoxin and uremic toxin. [1] [2] [3] High concentrations of indoxyl sulfate in blood plasma are known to be associated with the development and progression of chronic kidney disease and vascular disease in humans.
Gp100:209-217(210M) is a synthetic peptide cancer vaccine consisting of amino acid residues 209 through 217 of the glycoprotein 100 (gp100) melanoma antigen, with a methionine substitution at position 210. [1] It is often referred to as the gp100 cancer vaccine which can also include other peptides based on gp100 (for example gp100:280-288(288V ...
1-Methyltryptophan is a chemical compound that is an inhibitor of the tryptophan catabolic enzyme indoleamine 2,3-dioxygenase (IDO or INDO EC 1.13.11.52). [1] It is a chiral compound that can exist as both D - and L-enantiomers. The L-isomer (L-1MT) inhibits IDO weakly but also serves as an enzyme substrate.
α-Methyltryptophan (αMTP or α-MTP) is a synthetic tryptamine derivative, an artificial amino acid, and a prodrug of α-methylserotonin (αMS). [1] [2] [3] It is the α-methylated derivative of tryptophan, while αMS is the α-methylated analogue of serotonin.
A number of abnormalities and symptoms have been observed with hypertryptophanemia. [citation needed]Musculoskeletal effects include: joint contractures of the elbows and interphalangeal joints of the fingers and thumbs (specifically the distal phalanges), pes planus (fallen arches), an ulnar drift affecting the fingers of both hands (an unusual, yet correctible feature where the fingers slant ...