Abstract：
:VKORC1 and VKORC1L1 are enzymes that both catalyze the reduction of vitamin K2,3-epoxide via vitamin K quinone to vitamin K hydroquinone. VKORC1 is the key enzyme of the classical vitamin K cycle by which vitamin K-dependent (VKD) proteins are γ-carboxylated by the hepatic γ-glutamyl carboxylase (GGCX). In contrast, the VKORC1 paralog enzyme, VKORC1L1, is chiefly responsible for antioxidative function by reduction of vitamin K to prevent damage by intracellular reactive oxygen species. To investigate tissue-specific vitamin K 2,3-epoxide reductase (VKOR) function of both enzymes, we quantified mRNA levels for VKORC1, VKORC1L1, GGCX, and NQO1 and measured VKOR enzymatic activities in 29 different mouse tissues. VKORC1 and GGCX are highly expressed in liver, lung and exocrine tissues including mammary gland, salivary gland and prostate suggesting important extrahepatic roles for the vitamin K cycle. Interestingly, VKORC1L1 showed highest transcription levels in brain. Due to the absence of detectable NQO1 transcription in liver, we assume this enzyme has no bypass function with respect to activation of VKD coagulation proteins. Our data strongly suggest diverse functions for the vitamin K cycle in extrahepatic biological pathways.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Caspers M,Czogalla KJ,Liphardt K,Müller J,Westhofen P,Watzka M,Oldenburg Jdoi
10.1016/j.thromres.2015.01.025subject
Has Abstractpub_date
2015-05-01 00:00:00pages
977-83issue
5eissn
0049-3848issn
1879-2472pii
S0049-3848(15)00043-2journal_volume
135pub_type
杂志文章abstract：:The immunoglobulin superfamily member EMMPRIN (CD147) plays an important role in a number of organ systems, including the cardiovascular system. Here we review the contemporary understanding of EMMPRIN and EMMPRIN-associated sequelae in the course of atherosclerosis. A significant body of data documents the pivotal ro...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2013.04.017
更新日期：2013-06-01 00:00:00
abstract：BACKGROUND:Thrombin is the most potent platelet activator, and achieves rapid platelet activation even in the presence of antiplatelet therapy. Since activated platelets respond stronger to additional stimuli, the extent of endogenous thrombin generation may in part be responsible for the reported response variability ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.04.008
更新日期：2013-07-01 00:00:00
abstract：:A Ca++-ionophore, ionomycin, increased the volume of human platelets suspended in a Ca++-containing buffer. This change in cell volume was dependent upon ionomycin and extracellular Ca++ concentrations, suggesting that the volume change occurs when the intracellular Ca++ reaches a certain level (greater than uM as det...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90197-k
更新日期：1990-01-01 00:00:00
abstract：:G-proteins play a major role in cell signaling and specific abnormalities in these proteins have been implicated in some diseases. Although, two human G alpha q coding sequences are published, they differ at functionally important regions. We have sequenced the human G alpha q cDNA synthesized from normal platelet mRN...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(98)00071-1
更新日期：1998-07-01 00:00:00
abstract：:Chronic thromboembolic pulmonary hypertension (CTEPH) is the most severe long term complication of acute pulmonary embolism (PE). Untreated, CTEPH is associated with a very poor prognosis and high risk of mortality, although curation can be achieved by surgical removal of the obstructive endothelialised thromboemboli ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2016.12.026
更新日期：2017-03-01 00:00:00
abstract：:Patients with hematologic malignancies have an increased risk of venous thromboembolism (VTE), particularly at diagnosis and during the treatment with chemotherapy, asparaginase or immunomodulatory drugs (IMiDs). A disease-dependent hypercoagulable condition associated with other risk factors like drugs, central venou...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2011.11.034
更新日期：2012-03-01 00:00:00
abstract：:Cooperative effects of PAF-acether and arachidonic acid in blood platelet activation were studied in human platelet-rich plasma. Using a combination of low concentrations of PAF-acether and subthreshold amounts of exogenous arachidonic acid an enhancement of aggregation and an increased formation of malondialdehyde ar...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90080-x
更新日期：1984-02-15 00:00:00
abstract：INTRODUCTION:Rivaroxaban is an oral, selective direct factor Xa inhibitor approved for several indications in patients at risk of thrombotic events. One limitation of its clinical use is the lack of data pertaining to its reversal in situations where urgent response is critical (e.g. acute bleeding events or emergency ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.01.007
更新日期：2015-03-01 00:00:00
abstract：:beta-Factor XIIa (beta-XIIa, Mr approximately 30,000) was isolated from human plasma by a procedure which utilized, as an initial step, the adsorption of Factor XII to celite. Activation of Factor XII and subsequent release of beta-XIIa was brought about by the proteolytic action of co-adsorbed kallikrein. Two success...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90231-6
更新日期：1982-02-15 00:00:00
abstract：:Biological effects of the modification of the sulphate ester and carboxyl group content of poly(vinyl alcohol-acrylic acid) copolymers (PAVAS) and sulphated polyvinyl alcohol copolymers (PVAS) with mol. weight of 5,000 to 20,000 D were studied. The in vitro anticoagulant potency of PAVAS assessed by activated partial ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(94)90154-6
更新日期：1994-05-15 00:00:00
abstract：INTRODUCTION:Warfarin is the most widely used oral anticoagulant. It has been suggested that anticoagulation effect of warfarin is significantly associated with the polymorphism of certain genes, including Cytochrome P450 complex subunit 2C9 (CYP2C9), Vitamin K Epoxide Reductase Complex Subunit 1 (VKORC1), Gamma-Glutam...
journal_title：Thrombosis research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.thromres.2009.10.017
更新日期：2010-04-01 00:00:00
abstract：INTRODUCTION:Long-term dual antiplatelet therapy (DAPT) has substantially reduced the risk of post-percutaneous coronary intervention (PCI) myocardial infarction and stent thrombosis at the expense of major bleeding. We hypothesized that a short-term DAPT followed by extended P2Y12 inhibitor monotherapy might be approp...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.11.038
更新日期：2020-12-07 00:00:00
abstract：:We previously reported that the expression of thrombomodulin on the MEG-01, a cell line from human megakaryoblastic leukemia, was increased by agents that increase intracellular cAMP. In this paper we examine the effect of these agents on cultured human umbilical vein endothelial cells (HUVEC) and mouse hemangioma cel...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90107-8
更新日期：1991-02-01 00:00:00
abstract：:Hemorrhagic and thrombotic complications are common in the term and preterm infant. Limited information is currently available about neonatal platelet structure and function, and how these may predispose infants to bleeding problems. This study comparing platelet ultrastructure of 71 different term and preterm infants...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(94)90039-6
更新日期：1994-03-15 00:00:00
abstract：BACKGROUND:Cardiovascular disease remains the leading cause of morbidity and premature mortality in most industrialized countries as well as in developing nations. A pro-oxidative state appears to promote and/or exacerbate vascular disease complications. Furthermore, a state of low-grade chronic inflammation can promot...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2010.07.003
更新日期：2010-10-01 00:00:00
abstract：INTRODUCTION:Although investigation for JAK2 V617F mutation is recommended in patients presenting with splanchnic venous thrombosis (SVT), no specific clinical advice is given to SVT patients presenting without myeloproliferative neoplasms (MPN) and JAK2 V617F mutation. In MPN-free SVT patients, to investigate the clin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.07.014
更新日期：2013-08-01 00:00:00
abstract：BACKGROUND:Variability in platelet response to clopidogrel and its clinical relevance have been well described. However, the underlying mechanisms remain unclear. Recently, the T744C polymorphism of the P2Y12 receptor gene has been associated with enhanced platelet aggregation in healthy volunteers, suggesting a possib...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2007.01.012
更新日期：2007-01-01 00:00:00
abstract：BACKGROUND:Postmenopausal hormone therapy is associated with many diseases and conditions, e.g., cardiovascular diseases and asthma, but the underlying molecular mechanisms are incompletely understood. The aim of the current study was to investigate the effect of four different postmenopausal hormone therapy regimens o...
journal_title：Thrombosis research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.thromres.2011.12.009
更新日期：2012-07-01 00:00:00
abstract：:Antiphospholipid antibodies (APAs) are considered risk factors in patients with thromboembolic diseases. Although the incidence of such acquired coagulation disturbances in adults are well described, only few data exist for children. Therefore, in a first step to collect new data we analyzed the presence of different ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00241-8
更新日期：2000-05-15 00:00:00
abstract：:In this study we examined in 100 patients testing positive for Helicobacter pylori infection whether successful eradication therapy with pantoprazole, clarithromycin, and metronidazole alters fibrinogen and other acute phase response markers. Of 100 patients, only 11 showed a fibrinogen level above 300 mg/dL. Successf...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00230-3
更新日期：2000-03-15 00:00:00
abstract：:The ability of parenteral heparin to release the capillary-bound enzymes lipoprotein lipase (LPL) and hepatic triglyceride lipase (HTGL) into the circulation is shared by several other sulphated polysaccharides. The lipase-releasing activity in rats of two unfractionated heparins has been compared with that of charact...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90068-6
更新日期：1989-08-01 00:00:00
abstract：:Excess platelets shorten most clotting tests for lupus anticoagulant (LA). Often it is not clear if a shortened, normal or slightly prolonged result in a test masks a weak LA in combination with activated platelets, which express procoagulant phospholipid (PPL). Our aim was to investigate a new LA-insensitive factor X...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2004.06.001
更新日期：2004-01-01 00:00:00
abstract：INTRODUCTION:Thrombotic storm (TS) presents as a severe, acute thrombotic phenotype, characterized by multiple clotting events and frequently affecting younger adults. Understanding the extensive hypercoagulation of an extreme phenotype as TS will also provide insight into the pathogenesis of a wider spectrum of thromb...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.11.016
更新日期：2018-01-01 00:00:00
abstract：INTRODUCTION:Z4A5 is a novel peptide that inhibits platelet aggregation and formation of platelet thrombi, but the mechanism of its anti-platelet effects remains unknown. This study explores the anti-platelet effect and mechanism of Z4A5. METHODS:We investigated the anti-platelet activity of Z4A5 on platelet aggregati...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2012.02.047
更新日期：2012-05-01 00:00:00
abstract：:D-dimer of human fibrin was used as antigen to obtain monoclonal antibodies (mAbs). We have obtained 16 hybridomas producing mAbs of different specificity. Only two of these mAbs inhibited fibrin polymerization. They are of the IgG-class. One mAb (II-4d) inhibited fibrin polymerization to 100% and another (II-3b) to 6...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2004.03.005
更新日期：2004-01-01 00:00:00
abstract：INTRODUCTION:Endothelium-derived nitric oxide (NO) is synthesized from l-arginine by endothelial nitric oxide synthase (eNOS) encoded by the eNOS3 gene on chromosome 7. The effects of the eNOS polymorphisms with the risk of coronary artery disease are conflicting. In this study, we investigated the association of the e...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2006.06.005
更新日期：2007-01-01 00:00:00
abstract：:The effect of the vasopressin analogue DDAVP on Factor VIII in plasma has been extensively studied in humans. To examine the effect of new and potentially better analogues a suitable animal model has to be established. In the present study trained Beagle dogs were injected with DDAVP and the time course of the Factor ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(87)90363-x
更新日期：1987-09-01 00:00:00
abstract：INTRODUCTION:No data are available regarding appropriate strategies for the transition of patients undergoing total hip or knee replacement (THR/TKR) surgery from subcutaneous low molecular weight heparin (LMWH) to rivaroxaban. This study determined the pharmacodynamic effects of rivaroxaban on the first day of adminis...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.thromres.2012.07.014
更新日期：2012-11-01 00:00:00
abstract：INTRODUCTION:Caesarean section (CS) is a significant risk factor for venous thromboembolism.. Low molecular weight heparin (LMWH) is commonly used for thromboprophylaxis post emergency caesarean delivery. However, no consensus exists regarding LMWH thromboprophylaxis following elective caesarean section. Measures of th...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/j.thromres.2012.01.008
更新日期：2012-11-01 00:00:00
abstract：:Four novel polymorphisms were identified in the fibrinogen gene cluster. Three of them were localized in the promoter regions of the Aalpha-chain (alpha -128 C/G, alpha -58 G/A) or the gamma-chain (gamma -239 A/G) gene, while the remaining one was identified in intron 9 of the gamma-chain gene (gamma 7792 C/T). Genoty...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00329-2
更新日期：2001-08-15 00:00:00
