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menadione
(redirected from vitamin K3)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
menadione [‚men·ə′dī·ōn]
(organic chemistry)
C11H8O2(2-methyl-1,4-naphthoquinone) A compound used as a vitamin K supplement; important in blood clotting.


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44) While vitamins K1 and K2 are safe and effective, vitamin K3 is potentially toxic and its use has been limited to treating aggressive cancers.
Vitamin K comprises three main forms: vitamin K1 or phylloquinone which is found in green plants; vitamin K2 or the menaquinone family which is synthesised by bacteria in the large intes tine; and vitamin K3 or menadione which is a synthetic, water-soluble form that has been utilised in animal feeds.
BACKGROUND: To evaluate the efficacy of vitamin K3 (VK3) against pancreatic cancer, the molecular mechanism of VK3 or gemcitabine (GEM)-induced inhibition of proliferation was characterized.
 
 
 
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