The Uptake of Lipoprotein-Borne Phylloquinone (Vitamin K1) by Osteoblasts and Osteoblast-Like Cells: Role of Heparan Sulfate Proteoglycans and Apolipoprotein E

Abstract
Vitamin K is essential for the γ-carboxylation of Gla-containing bone proteins such as osteocalcin and a suboptimal vitamin K status has been linked to osteoporosis but nothing is known of how the li...