from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An aldehyde, C8H9NO3, one of several active forms of pyridoxine, important in amino acid synthesis.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of the three natural forms of vitamin B6
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a B vitamin that is essential for metabolism of amino acids and starch
According to the study authors, the gene variant may affect the activity of an enzyme in the brain, called pyridoxal kinase (PDXK).
In each of the 19 pathways for the generation of chiral amino acids, the stereochemistry at the α-carbon atom is established by a transamination reaction that involves pyridoxal phosphate.
Vitamin B6, a water-soluble vitamin that exists as pyridoxine, pyridoxal, and pyridoxamine, is found in beans, meat, fish, and some fruits and vegetables, like spinach and avocado.
Vitamin B6 (100 mg as pyridoxine HCI, 50 mg pyridoxamine from pyridoxamine DiHCI, and 2.5 mg pyridoxal 5 'phosphate coenzyme) 800 mcg
Vitamin B6 (100 mg as pyridoxine HCI, 50 mg pyridoxamine from pyridoxamine DiHCI, and 2.5 mg pyridoxal 5 'phosphate coenzyme)
Among other findings, the research group detected increased activity of the pyridoxal kinase gene.
In doing so, they discovered a gene variant which increases the risk for Parkinson's disease and which may lead to a modified quantity or activity of the enzyme pyridoxal kinase (PDXK) in the brain.
Vitamin B6 is essential in all organisms, due to its requirement as a cofactor in the form of pyridoxal 5'-phosphate (PLP) for key metabolic enzymes.
In the body, however, the parahydroxymethyl moiety is oxidized to an aldehyde and the similar group in the meta position is phosphorylated, resulting in the biologically active pyridoxal phosphate..
Supplements Vitamin B6, also known as pyridoxine, pyridoxal and pyriodoxamine, is a water-soluble vitamin involved in a wide variety of functions throughout the body.
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