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[mass noun] A substance widely distributed in animal tissues, egg yolk, and some higher plants, consisting of phospholipids linked to choline.
- ‘Lecithin is also known as phosphatidylcholine because it provides choline.’
- ‘Choline chloride and phosphatidylcholine, which are orally bioavailable precursors of acetylcholine, have been reported to be useful in short-term studies.’
- ‘Importantly, enzymatic degradation of cellular phosphatidylcholine does not affect cellular cholesterol esterification.’
- ‘These studies indicate that the protein exhibits highest selectivity for the choline phospholipids phosphatidylcholine and sphingomyelin under physiological conditions of pH and ionic strength.’
- ‘These include the biosynthetic pathways for creatine, epinephrine, phosphatidylcholine, and the methylation of DNA and RNA.’
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