Vitamin K1 and K2 in infant human liver.
J Pediatr Gastroenterol Nutr
; 8(3): 304-7, 1989 Apr.
Article
de En
| MEDLINE
| ID: mdl-2709263
ABSTRACT
It is not known to what extent humans store vitamin K in liver. We measured hepatic concentrations of vitamin K1 (phylloquinone) and K2 (menaquinones) in 11 human livers (eight infants and three adults). Relatively small amounts of vitamin K were found in the liver at any age compared to other fat soluble vitamins. Vitamin K1 was the predominant form with much smaller concentrations of vitamin K2. Long-chain menaquinones (vitamin K2) were readily identified in most liver specimens. Hepatic vitamin K2 concentrations also increased with increasing age. These observations have implications for vitamin K supplementation in infants.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Phytoménadione
/
Vitamine K
/
Foie
Limites:
Adult
/
Female
/
Humans
/
Infant
/
Male
/
Middle aged
/
Newborn
Langue:
En
Journal:
J Pediatr Gastroenterol Nutr
Année:
1989
Type de document:
Article