Item |
Information |
Drug Groups
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approved; nutraceutical |
Description
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A peptide that is a homopolymer of glutamic acid. [PubChem] |
Indication |
Considered to be nature's "Brain food" by improving mental capacities; helps speed the healing of ulcers; gives a "lift" from fatigue; helps control alcoholism, schizophrenia and the craving for sugar. |
Pharmacology |
In addition to being one of the building blocks in protein synthesis, it is the most widespread neurotransmitter in brain function, as an excitatory neurotransmitter and as a precursor for the synthesis of GABA in GABAergic neurons.
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Toxicity |
Glutamate causes neuronal damage and eventual cell death, particularly when NMDA receptors are activated, High dosages of glutamic acid may include symptoms such as headaches and neurological problems. |
Affected Organisms |
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Humans and other mammals |
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Biotransformation |
Hepatic |
Absorption |
Absorbed from the lumen of the small intestine into the enterocytes.Absorption is efficient and occurs by an active transport mechanism. |
References |
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Smith QR: Transport of glutamate and other amino acids at the blood-brain barrier. J Nutr. 2000 Apr;130(4S Suppl):1016S-22S.
[Pubmed]
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Okumoto S, Looger LL, Micheva KD, Reimer RJ, Smith SJ, Frommer WB: Detection of glutamate release from neurons by genetically encoded surface-displayed FRET nanosensors. Proc Natl Acad Sci U S A. 2005 Jun 14;102(24):8740-5. Epub 2005 Jun 6.
[Pubmed]
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Reeds PJ, Burrin DG, Stoll B, Jahoor F: Intestinal glutamate metabolism. J Nutr. 2000 Apr;130(4S Suppl):978S-82S.
[Pubmed]
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Corrie JE, DeSantis A, Katayama Y, Khodakhah K, Messenger JB, Ogden DC, Trentham DR: Postsynaptic activation at the squid giant synapse by photolytic release of L-glutamate from a 'caged' L-glutamate. J Physiol. 1993 Jun;465:1-8.
[Pubmed]
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Augustin H, Grosjean Y, Chen K, Sheng Q, Featherstone DE: Nonvesicular release of glutamate by glial xCT transporters suppresses glutamate receptor clustering in vivo. J Neurosci. 2007 Jan 3;27(1):111-23.
[Pubmed]
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External Links |
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