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ECHA InfoCard | 100.044.496 |
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Formula | C8H20NO6P |
Molar mass | 257.223 g·mol−1 |
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L-α-Glycerophosphorylcholine (alpha-GPC, choline alfoscerate, sn-glycero-3-phosphocholine) is a natural choline compound found in the brain. It is also a parasympathomimetic acetylcholine precursor[1] which has been investigated for its potential for the treatment of Alzheimer's disease[2] and other dementias.[3]
Alpha-GPC rapidly delivers choline to the brain across the blood–brain barrier and is a biosynthetic precursor of acetylcholine.[2] It is a non-prescription drug in most countries. The FDA determined that intake of no more than 196.2 mg/person/day is considered generally recognized as safe (GRAS).[4]
Industrially, alpha-GPC is produced by the chemical or enzymatic deacylation of phosphatidylcholine enriched soya phospholipids followed by chromatographic purification. Alpha-GPC may also be derived in small amounts from highly purified soy lecithin as well as from purified sunflower lecithin.[5][6]
Alpha-GPC metabolizes to trimethylamine n-oxide in the gastrointestinal tract, which has implications for cardiovascular health. In one study, risk of stroke over a ten-year period was increased by about 40% in users of alpha-GPC.[7]