Results 211 to 220 of about 277,539 (261)

Can 3 oral 2 mg doses of vitamin K effectively prevent late vitamin K deficiency bleeding?

European Journal of Pediatrics, 1999
A 1 mg dose of vitamin K given intramuscularly at birth prevents almost all cases of late VKDB, whereas even two oral doses of 1 mg vitamin K given in the first week and a third given in week 5 to 6 are less effective. Is efficacy improved by increasing the dose to 3 x 2 mg?
R, von Kries, A, Hachmeister, U, Göbel
openaire   +2 more sources

Vitamin K ₂ Takes Charge

Science, 2012
A vitamin carries electrons in the mitochondrial transport chain.
Sheetal Bhalerao, Thomas R. Clandinin
openaire   +1 more source

Determination on the anti-peptic activity of vitamin K-2

Gastroenterologia Japonica, 1974
The pharmacological study of menatetrenone(2-methyl-3-all-trans-tetraprenyl-1,4-naphtoquinone) indicated that this compound inhibited experimental starvation and stress ulcers in the rats. It was also found effective on accelerating the healing process of experimental acetic acid ulcer and pylorus ligation ulcer.
Fong-Ming Chang, Susumu Oshiro, Tadashige Shimizutani, Shinroku Ashizawa   +3 more
openaire   +1 more source

Interaction of Vitamin K₁ and Vitamin K₂ with Dimyristoylphosphatidylcholine and Their Location in the Membrane

Langmuir, 2020
Vitamin K1 and vitamin K2 play very important biological roles as members of chains of electron transport as antioxidants in membranes and as cofactors for the posttranslational modification of proteins that participate in a number of physiological functions such as coagulation.
Alessio Ausili, Javier Clemente, Óscar D. Pons-Belda, Ana de Godos, Senena Corbalán-García, Alejandro Torrecillas, José A. Teruel, Juan C. Gomez-Fernández   +7 more
openaire   +2 more sources

The function of menaquinone (vitamin K2) in Escherichia coli K-12

Biochimica et Biophysica Acta (BBA) - General Subjects, 1971
Abstract 1. 1. A gene concerned with the biosynthesis of menaquinone (vitamin K 2 ) has been mapped by cotransduction at about minute 78 on the Escherichia coli genome. 2. 2. Strains deficient in menaquinone, and in both menaquinone and ubiquinone, were prepared by cotransduction and compared with the parent strain in a study of menaquinone
N A, Newton, G B, Cox, F, Gibson
openaire   +2 more sources

The vitamin K-dependent Gla proteins and risk of type 2 diabetes

Diabetologia, 2013
[Extract] Recently Haase et al [1] reported that maternal low-protein diet in rats was associated with decreased beta cell mass and decreased expression of growth arrest specific protein 6 (GAS6) in islets of Langerhans, and that incubation of neonatal islets with GAS6 enhanced beta cell proliferation.
Kennedy, R.L., Vangaveti, V., Malabu, U.H., McCulloch, D.   +3 more
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ChemInform Abstract: Preparation of 2‐Trifluoromethyl Vitamin K Analogues.

ChemInform, 1989
Abstract2‐Trifluoromethylbenzoquinone (I) is converted to the bis(hydroquinone ether) (III) and then alkylated with the allylic bromides (IV) to give the substitution products (V).
T. TAGUCHI, Y. SUDA, A. HOSODA, Y. KOBAYASHI   +3 more
openaire   +1 more source

Effect of Vitamin K2 Supplementation on Functional Vitamin K Deficiency in Hemodialysis Patients: A Randomized Trial

American Journal of Kidney Diseases, 2012
Vascular calcification is a predictor of cardiovascular morbidity and mortality. Hemodialysis patients experience severe vascular calcifications. Matrix Gla protein (MGP) is a central calcification inhibitor of the arterial wall; its activity depends on vitamin K-dependent γ-glutamate carboxylation.
Westenfeld, Ralf, Krueger, Thilo, Schlieper, Georg, Cranenburg, Ellen C. M., Magdeleyns, Elke J. P., Heidenreich, Stephan, Holzmann, Stefan, Vermeer, Cees, Jahnen-Dechent, Willi, Ketteler, Markus, Floege, Juergen, Schurgers, Leon J.   +11 more
openaire   +2 more sources

Cutaneous hypersensitivity reactions to vitamin K: 2 case reports and a review of the literature

Contact Dermatitis, 1995
Between 1964 and 1994, at least 52 patients with cutaneous adverse effects of vitamin K have been described in the European and North American literature, A review of the details of these patients is given and 2 new cases reported. Adverse effects are seen not only in patients with liver‐function disturbances but also in patients without liver diseases,
I, Bruynzeel, C L, Hebeda, E, Folkers, D P, Bruynzeel   +3 more
openaire   +2 more sources

Pharmacokinetics of Vitamin K in Mothers and Children in the Perinatal Period: Transplacental Transport of Vitamin K₂ (MK‐4)

Asia-Oceania Journal of Obstetrics and Gynaecology, 1991
AbstractIn order to examine the pharmacokinetics of vitamin K2, vitamin K2 (MK‐4) was intravenously injected into mothers, and its transfer to placental tissue and the fetuses was examined. While incorporation of vitamin K2 into placental tissue was relatively active, transfer of vitamin K2 to fetal blood (cord blood) was small.
H, Iioka, I S, Moriyama, K, Morimoto, S, Akada, H, Hisanaga, Y, Ishihara, M, Ichijo   +6 more
openaire   +2 more sources