نتایج جستجو برای: warfarin dose

تعداد نتایج: 318316  

Journal: :Cardiovascular therapeutics 2017
Jinhua Zhang Lihong Tian Jinlong Huang Sihan Huang Tingting Chai Jianzhen Shen

AIM To assess the effect of Cytochrome P450 2C9 (CYP2C9) gene polymorphism on pediatric warfarin maintenance dosage requirement. METHODS A previously developed search strategy was conducted in PubMed, EMBASE, and the Cochrane Library. Eligible studies published prior to January 27, 2016, were identified and compared against strict inclusion/exclusion criteria. Required data were extracted, an...

Journal: :SpringerPlus 2016
Amr Mohamed Fahmi Osama Abdelsamad Hazem Elewa

INTRODUCTION Warfarin therapy is associated with many drug interactions that may cause a significant alteration in its anticoagulant effect. Rifampin is a widely used antimicrobial that has major interactions with several medications including warfarin due to its strong P-glycoprotein and liver enzyme inducer activity especially on CYP2C9, CYP3A4, CYP1A2 and CYP2C19. PRESENTATION We report a ...

2016
Dagmar F. Hernandez-Suarez Karla Claudio-Campos Javier E. Mirabal-Arroyo Bianca A. Torres-Hernández Angel López-Candales Kyle Melin Jorge Duconge

Deep abdominal vein thrombosis is extremely rare among thrombotic events secondary to the use of contraceptives. A case to illustrate the clinical utility of ethno-specific pharmacogenetic testing in warfarin management of a Hispanic patient is reported. A 37-year-old Hispanic Puerto Rican, non-gravid female with past medical history of abnormal uterine bleeding on hormonal contraceptive therap...

2012
Nita A. Limdi

Candidate gene studies The recognition of genetic regulation of warfarin response has stimulated efforts aimed at quantifying this influence. The bulk of the evidence supports the influence of single nucleotide polymorphisms (SNPS) in two genes; Cytochrome P450 2C9 (CYP2C9; codes for the main enzyme involved in warfarin metabolism) and Vitamin K epoxide reductase complex1 (VKORC1; encodes the v...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2003
John M Neal Kent L Kunze René H Levy Robert A O'Reilly William F Trager

The goal of the study was to test the assumption that a competitive inhibition constant determined in vivo, Kiiv, like its corresponding in vitro counterpart, Ki, is independent of inhibitor concentration. Inhibition of the CYP2C9-dependent formation of (S)-7-hydroxy-warfarin from (S)-warfarin was measured in seven healthy subjects at three different doses of fluconazole. Prothrombin time measu...

Journal: :International Journal of Health Sciences (IJHS) 2022

Diabetes mellitus (DM) is a chronic metabolic disease that characterized by elevated blood glucose levels. Warfarin an anticoagulant drug often used to treat and prevent microvascular macrovascular complications. This study wanted find out the effect of warfarin on tail bleeding time male Wistar rats with type 2 diabetes model. quasi-experimental posttest research design in vivo control group m...

2013
Jasper Dingemanse Petra Hoever

BACKGROUND AND OBJECTIVE Almorexant is the first representative of the new class of orexin receptor antagonists, which could become a new treatment option for insomnia. The present study investigated the potential interaction between almorexant and warfarin. METHODS In this open-label, two-way crossover, drug-drug interaction study, healthy male subjects received, in a randomized fashion, alm...

Journal: :Clinical pharmacology and therapeutics 2008
M-S Wen Mtm Lee J-J Chen H-P Chuang L-S Lu C-H Chen T-H Lee C-T Kuo F-M Sun Y-J Chang P-L Kuan Y-F Chen M-J Charng C-Y Ray J-Y Wu Y-T Chen

Polymorphisms in CYP2C9 and VKORC1 have been shown to be associated with warfarin dose requirements and could be used to predict warfarin dose. We conducted a prospective study in which warfarin dose was prescribed based on CYP2C9 and VKORC1 polymorphisms in 108 Han-Chinese patients without prior warfarin treatments. Using the genotype-based dosing, 83% of patients reached stable, therapeutic i...

2015
Siyue Li Yuangao Zou Xia Wang Xunbei Huang Yong Sun Yuqing Wang Li Dong Hong Jiang

OBJECTIVES As the most frequently prescribed anticoagulant, warfarin has large inter-individual variability in dosage. Genetic polymorphisms could largely explain the differences in dosage requirement. rs9923231 (VKORC1), rs7294 (VKORC1), rs1057910 (CYP2C9), rs2108622 (CYP4F2), and rs699664 (GGCX) involved in the warfarin action mechanism and the circulatory vitamin K were selected to investiga...

2013
Minoli A Perera Larisa H Cavallari Nita A Limdi Eric R Gamazon Anuar Konkashbaev Roxana Daneshjou Anna Pluzhnikov Dana C Crawford Jelai Wang Nianjun Liu Nicholas Tatonetti Stephane Bourgeois Harumi Takahashi Yukiko Bradford Benjamin M Burkley Robert J Desnick Jonathan L Halperin Sherief I Khalifa Taimour Y Langaee Steven A Lubitz Edith A Nutescu Matthew Oetjens Mohamed H Shahin Shitalben R Patel Hersh Sagreiya Matthew Tector Karen E Weck Mark J Rieder Stuart A Scott Alan HB Wu James K Burmester Mia Wadelius Panos Deloukas Michael J Wagner Taisei Mushiroda Michiaki Kubo Dan M Roden Nancy J Cox Russ B Altman Teri E Klein Yusuke Nakamura Julie A Johnson

BACKGROUND VKORC1 and CYP2C9 are important contributors to warfarin dose variability, but explain less variability for individuals of African descent than for those of European or Asian descent. We aimed to identify additional variants contributing to warfarin dose requirements in African Americans. METHODS We did a genome-wide association study of discovery and replication cohorts. Samples f...

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