4.1.1.90 medicine in WKY rats receiving a vitamin K-deficient diet that results in a 40% decrease of prothrombin activity, compound N-ethyl-2-(3-methyl-1,4-dioxo-1,4-dihydronaphthalen-2-yl)tetradecylamide is able to counteract the effects on vitamin K deficiency and results in the complete restoration of prothrombin activity 747280 4.1.1.90 medicine multiplexed single nucleotide polymorphism panel (interrogation of the CYP2C9 *2, *3, VKORC1 (-1639G3A), and GGCX (1181T3G) alleles simultaneously) can be successfully used in genotyping of patient blood samples, whereby results can be combined with other clinical parameters in an algorithm for warfarin dosing 703270 4.1.1.90 medicine single nucleotide polymorphism in the GGCX gene may affect the dose of warfarin and other vitamin K antagonists 716953 4.1.1.90 medicine six out of seven patients with Pseudoxanthoma Elasticum habor mutations in the GGCX gene (gamma-glutamyl carboxylase) 699400 4.1.1.90 medicine warfarin therapy 699860 4.1.1.90 synthesis development of expression vectors which enable expressing mammalian gamma-glutamyl carboxylase, vitamin K epoxide reductase complex, subunit 1, and/or PDIA2 along with human coagulation factor VII in Drosophila Schnieder S2 cells. Mammalian GGCX i indispensable to synthesize active factor VII while mammalian vitamin K epoxide reductase complex, subunit 1, and PDIA2 are not critical but supportive factors for S2 cells 747630