Pteridines - Folates, Folic Acid, Folinic Acid, L-Methylfolate, Neopterin, Tetrahydrofolic Acid, 5-Methyltetrahydrofolate (Paperback)

Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Chapters: Folates, Folic Acid, Folinic Acid, L-Methylfolate, Neopterin, Tetrahydrofolic Acid, 5-Methyltetrahydrofolate, 10-Formyl-Tetrahydrofolate, 5,10-Methenyltetrahydrofolate, 5-Formiminotetrahydrofolate, 5,10-Methylenetetrahydrofolate, 2-Amino-4-Hydroxy-6-Pyrophosphoryl-Methylpteridine, Dihydrofolic Acid, Sepiapterin. Excerpt: 250 C (523 K), decomp. Folic acid (also known as vitamin B9 or folacin) and folate (the naturally occurring form), as well as pteroyl-L-glutamic acid and pteroyl-L-glutamate, are forms of the water-soluble vitamin B9. Folic acid is itself not biologically active, but its biological importance is due to tetrahydrofolate and other derivatives after its conversion to dihydrofolic acid in the liver. Vitamin B9 (folic acid and folate inclusive) is essential to numerous bodily functions ranging from nucleotide biosynthesis to the remethylation of homocysteine. The human body needs folate to synthesize DNA, repair DNA, and methylate DNA as well as to act as a cofactor in biological reactions involving folate. It is especially important during periods of rapid cell division and growth. Children and adults both require folic acid in order to produce healthy red blood cells and prevent anemia. Folate and folic acid derive their names from the Latin word folium (which means "leaf"). Leafy vegetables are a principal source, although in Western diets fortified cereals and bread may be a larger dietary source. A lack of dietary folic acid leads to folate deficiency (FD). This can result in many health problems, most notably neural tube defects in developing embryos. Low folate can also lead to homocysteine accumulation as a result of one carbon metabolism mechanism methylation being impaired. DNA synthesis and repair are impaired and this... More: http://booksllc.net/?id=54117