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Natural: hydroxocobalamin Bioactive coenzyme: methylcobalamin & adenosylcobalamin Synthetic: cynanocobalamin As a reaction partner, the body can only directly use the bioactive coenzyme forms of B12
Category 2 substances are those placed on a "do not compound" restricted list meaning compounding pharmacies cannot legally produce or sell them in injectable form
Various organic nanomaterials, including polymeric prodrugs and nanomicelles, provide stability and biodegradability but face challenges in clinical use because of complex synthesis
(2003) reportaron in vitro induccin de actividad telomerasa y elongacin de telmeros en cultivos celulares humanos somticos
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