Anti-Alzheimer's, Anti-Dementia and Anti-Parkinson Agents
Folic Acid(folate)
Short description
Folate is an essential vitamin that is also known as folic acid and folacin. The synthetic form of the vitamin (folic acid), pteroylglutamic acid, is seldom found naturally in food. The folates found in nature contain the core chemical structure of pteroylglutamic acid but vary in their state of reduction, the single carbon moiety they bear and/or the length of the glutamate chain attached. At least 50% of whole body folate is stored in the liver.
The metabolic role of folate is as an acceptor and donor of one-carbon units in a variety of reactions involved in amino acid and nucleotide metabolism. The carbon can be carried as a methyl, methylene, formyl, formimino or methenyl group. The coenzyme form of the vitamin is typically fully reduced and poly-glutamylated. In the adult, folate is absorbed primarily in the proximal one-third of the small intestine. It is also conceivable that a portion of the large depot of bacterially synthesized folate in the large intestine may be absorbed. A large portion of folate delivered to the liver is secreted into bile and redistributed to peripheral tissues. Polyglutamylation (addition of glutamic acids) of folate is believed necessary to concentrate and store folates in tissues.