Save up -80% on L-Tryptophan
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2018 Price of L-Tryptophan
Tryptan 750 mg Tablet
* price without discount in nearest pharmacy. Price may vary.
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L-Tryptophan volume of distribution
Discount Cards 16,000+
Clients Benefit 29%
Total savings $4,735,080
What is L-Tryptophan
An essential amino acid that is necessary for normal growth in infants and for nitrogen balance in adults. It is a precursor of indole alkaloids in plants. It is a precursor of serotonin (hence its use as an antidepressant and sleep aid). It can be a precursor to niacin, albeit inefficiently, in mammals.
L-Tryptophan mechanism of action
A number of important side reactions occur during the catabolism of tryptophan on the pathway to acetoacetate. The first enzyme of the catabolic pathway is an iron porphyrin oxygenase that opens the indole ring. The latter enzyme is highly inducible, its concentration rising almost 10-fold on a diet high in tryptophan. Kynurenine is the first key branch point intermediate in the pathway. Kynurenine undergoes deamniation in a standard transamination reaction yielding kynurenic acid. Kynurenic acid and metabolites have been shown to act as antiexcitotoxics and anticonvulsives. A second side branch reaction produces anthranilic acid plus alanine. Another equivalent of alanine is produced further along the main catabolic pathway, and it is the production of these alanine residues that allows tryptophan to be classified among the glucogenic and ketogenic amino acids. The second important branch point converts kynurenine into 2-amino-3-carboxymuconic semialdehyde, which has two fates. The main flow of carbon elements from this intermediate is to glutarate. An important side reaction in liver is a transamination and several rearrangements to produce limited amounts of nicotinic acid, which leads to production of a small amount of NAD sup + /sup and NADP sup + /sup .
Dosage forms of L-Tryptophan
2.5% Travasol Amino Acid Injection With Electrolytes In 10% Dextrose
(-)-Tryptophan (2S)-2-amino-3-(1H-indol-3-yl)Propanoic acid
Baxter Corporation Clintec Nutrition Division
Humans and other mammals
Indication of L-Tryptophan
Tryptophan may be useful in increasing serotonin production, promoting healthy sleep, managing depression by enhancing mental and emotional well-being, managing pain tolerance, and managing weight.
Toxicity of L-Tryptophan
Oral rat LD sub 50 /sub : 16 gm/kg. Investigated as a tumorigen, mutagen, reproductive effector. Symptoms of overdose include agitation, confusion, diarrhea, fever, overactive reflexes, poor coordination, restlessness, shivering, sweating, talking or acting with excitement you cannot control, trembling or shaking, twitching, and vomiting.
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