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Tartagni et al., 2015
doi:10.1177/070674371205700703 Bhatia P, Singh N
Notably, despite theoretical concerns about increased infection risk due to neutrophil protease inhibition, no signal for increased severe infections emerged
- ATP ( )
Causes: oversupplementation Clinical features In infants: increased risk of necrotizing enterocolitis (NEC) High-dose supplementation: alteration of vitamin K metabolism anticoagulatory effects of warfarin risk of bleeding Increased incidence of heart failure, subarachnoid hemorrhage, and increased mortality [10] Therapeutic uses Nonalcoholic steatohepatitis: consider vitamin E for antioxidant effect Characteristics Synonyms Vitamin K 1 (phytomenadione, phytonadione, or phylloquinone) Vitamin K 2 (menaquinone) Substance class: naphthoquinones Chemical structure: Vitamin K1 Vitamin K2 Inactive precursors (provitamins): none Active form: vitamin K hydroquinone Sources Leafy green vegetables (vitamin K 1 ) Eggs, dairy, and meat (vitamin K 2 ) Synthesized in small amounts by intestinal bacteria Transport: via lipoproteins
