cytidine 5'-diphosphate

Cytidine 5'-diphosphate trisodium salt (CDP) catalyzes the production of Cytidine triphosphate (CTP) for DNA and RNA synthesis by transferring a phosphoryl group from ATP to cytidine monophosphate (CMP) through the action of uridine monophosphate kinase (UMPK).

Citicoline (CDP-Choline) is an intermediate in the synthesis of phosphatidylcholine, a component of cell membranes. Citicoline exerts neuroprotective effects.

Citicoline sodium (CDP-choline) is an endogenous intermediate in the synthesis of phosphatidylcholine. It also serves as a choline donor in the biosynthesis of the neurotransmitter acetylcholine. Citicoline sodium demonstrates protective effects in cerebral ischemia, traumatic brain injury, and memory disorders. Exogenous administration of citicoline to rodents (500 mg kg i.p. immediately after ischemia and at 3-h reperfusion) has been shown to stimulate the synthesis of phosphatidylcholine, sphingomyelin, and cardiolipin and to attenuate the release of arachidonic acid and the accumulation of ceramide.