Implications of cytochrome P450 2C9 polymorphism on warfarin metabolism and dosing.

Abstract:

:Warfarin is an anticoagulant available as a racemic mixture. The R- and S-isomers differ with respect to relative plasma concentrations, clearance, potency, sites of metabolism, and cytochrome P450 (CYP) isoenzymes responsible for metabolism. S-Warfarin, the more potent isomer, is metabolized primarily by CYP2C9. Genetic polymorphisms resulting from single amino acid substitutions reduce the metabolic capability of 2C9. A reduction in warfarin metabolism due to genetic polymorphism may explain the increased warfarin response and bleeding episodes in some patients. Clinical studies showed an increased plasma level of S-warfarin, decreased clearance of S-warfarin, increased frequency of bleeding, and prolongation of hospitalization in patients with variant CYP2C9 alleles. Adverse outcomes associated with warfarin possibly could be avoided by identifying patients with variant alleles before therapy and starting therapy at low dosages.

journal_name

Pharmacotherapy

journal_title

Pharmacotherapy

authors

Redman AR

doi

10.1592/phco.21.2.235.34106

subject

Has Abstract

pub_date

2001-02-01 00:00:00

pages

235-42

issue

2

eissn

0277-0008

issn

1875-9114

journal_volume

21

pub_type

杂志文章,评审
  • Hospitalizations because of hypoglycemia in users of animal and human insulins. 2. Experience in the United States.

    abstract::In a 10-year (1979-1988) follow-up study of young insulin-dependent diabetics carried out at Group Health Cooperative of Puget Sound, the frequency of hospitalization for hypoglycemia remained constant. During the early years only animal insulins were available; during the latter years, human insulins were used in a m...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:

    authors: Jick SS,Derby LE,Gross KM,Jick H

    更新日期:1990-01-01 00:00:00

  • Principles of drug literature evaluation for observational study designs.

    abstract::Clinical pharmacists must often interpret and use data derived from observational studies when making clinical decisions and recommendations, answering drug information questions, and educating patients about drug therapy. This is the third article in a three-part series intended to enhance clinical pharmacists' under...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1592/phco.31.2.115

    authors: Shields KM,DiPietro NA,Kier KL

    更新日期:2011-02-01 00:00:00

  • Effect of telephone follow-up on the physical well-being dimension of quality of life in patients with cancer.

    abstract:OBJECTIVE:To evaluate the effect of telephone follow-up on the physical well-being dimension of health-related quality of life in patients with cancer. DESIGN:Randomized, controlled trial. SETTING:Public teaching hospital. PATIENTS:One hundred fifty patients with cancer who were discharged to home from the hospital....

    journal_title:Pharmacotherapy

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1592/phco.22.15.1301.33480

    authors: Beney J,Devine EB,Chow V,Ignoffo RJ,Mitsunaga L,Shahkarami M,McMillan A,Bero LA

    更新日期:2002-10-01 00:00:00

  • Evaluation of alprostadil (prostaglandin E1) in the management of congenital heart disease in infancy.

    abstract::Prostaglandins have been shown to relax the smooth muscle of the ductus arteriosus in the fetus in utero. This physiologic action has been applied to the management of newborn infants with certain types of congenital malformations. Infants with lesions producing right ventricular outflow obstruction have a compromised...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:10.1002/j.1875-9114.1982.tb04522.x

    authors: Heymann MA,Clyman RI

    更新日期:1982-05-01 00:00:00

  • Dissolution of struvite calculi by hemiacidrin solution.

    abstract::Struvite calculi result from urinary tract infections secondary to urease-producing bacteria. To prevent recurrent infection and stone formation complete removal of struvite calculi is recommended. Two illustrative reports of patients with renal struvite calculi are presented in which 10% hemiacidrin (Renacidin) irrig...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1002/j.1875-9114.1983.tb03300.x

    authors: Massaro FJ,Weiner B,Sant GR,Meares EM Jr

    更新日期:1983-11-01 00:00:00

  • Association of GGH Promoter Methylation Levels with Methotrexate Concentrations in Chinese Children with Acute Lymphoblastic Leukemia.

    abstract:BACKGROUND:It is known that γ-glutamyl hydrolase (GGH) is involved in the disposition of methotrexate (MTX), and GGH activity is regulated by DNA methylation in acute lymphoblastic leukemia (ALL) cells. The present study explores the methylation status of the GGH promoter in peripheral blood and its association with MT...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1002/phar.2430

    authors: Wang SM,Kong XY,Li M,Sun LL,Yan D

    更新日期:2020-07-01 00:00:00

  • Quality of anticoagulation care in patients discharged from a pharmacist-managed anticoagulation clinic after stabilization of warfarin therapy.

    abstract:STUDY OBJECTIVE:To determine if transitioning patients from a pharmacist- managed anticoagulation clinic after stabilization of warfarin therapy to physician-managed care alters the quality of anticoagulation care. DESIGN:Retrospective medical record review. SETTING:Pharmacist-managed, urban academic medical center-b...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1592/phco.28.1.20

    authors: Garwood CL,Dumo P,Baringhaus SN,Laban KM

    更新日期:2008-01-01 00:00:00

  • Comparison of two methods for INR determination in a pharmacist-based oral anticoagulation clinic.

    abstract::Warfarin is a commonly used oral anticoagulant that is usually initiated after the definitive diagnosis of a certain thromboembolic disorder or disease. Warfarin therapy will usually be prescribed for 6-12 weeks or more, and some patients may continue therapy throughout life, depending on the type of thromboembolic di...

    journal_title:Pharmacotherapy

    pub_type: 临床试验,杂志文章

    doi:

    authors: Yamreudeewong W,Johnson JV,Cassidy TG,Berg JT

    更新日期:1996-11-01 00:00:00

  • Impact of a pharmacist-based consult service on nutritional rehabilitation of nonambulatory patients with severe developmental disabilities.

    abstract::A pharmacist consult service was developed to evaluate the appropriateness of enteral feeding through a permanent ostomy in 24 nonambulatory patients with severe developmental disabilities. Several problems with enteral nutrition were identified. Policies to improve them were instituted, and several educational presen...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:

    authors: Brown RO,Dickerson RN,Hak EB,Matthews JB,Hak LJ

    更新日期:1997-07-01 00:00:00

  • Glycemic Management in the Bariatric Surgery Population: A Review of the Literature.

    abstract::Obesity is a worldwide epidemic often complicated by multiple comorbidities, including type 2 diabetes mellitus (T2DM). Bariatric surgery is an increasingly common and effective weight-loss strategy for obese patients that may result in resolution of metabolic-related disease states, such as T2DM. Although bariatric s...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:10.1002/phar.2120

    authors: Howard ML,Steuber TD,Nisly SA

    更新日期:2018-06-01 00:00:00

  • Concurrent administration of sirolimus and voriconazole: a pilot study assessing safety and approaches to appropriate management.

    abstract:STUDY OBJECTIVES:To assess the use and safety of concurrent administration of voriconazole and sirolimus-which is contraindicated-and to determine approaches for appropriately managing patients who receive both drugs. DESIGN:Retrospective medical record review. SETTING:University-affiliated medical center. PATIENTS:...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1592/phco.28.6.719

    authors: Surowiec D,DePestel DD,Carver PL

    更新日期:2008-06-01 00:00:00

  • Options for the management of mucosal candidiasis in patients with AIDS and HIV infection.

    abstract::Oropharyngeal candidiasis may be the first manifestation of human immunodeficiency viral (HIV) infection, and more than 90% of patients with the acquired immunodeficiency syndrome (AIDS) develop the disease. Although numerous antifungal agents are available, azoles, both topical (clotrimazole) and systemic (fluconazol...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:10.1592/phco.19.1.76.30509

    authors: Vazquez JA

    更新日期:1999-01-01 00:00:00

  • Target drug programs and medication use evaluation.

    abstract::Target drug programs and medication use evaluations are activities that are undertaken to improve the correct use of drugs. These programs should focus on inappropriate drug use, drug use problems, optimizing use of drugs, and improving the level of patient care. To monitor the effects of the programs, several types o...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1592/phco.20.16.322s.35014

    authors: Hekster YA

    更新日期:2000-10-01 00:00:00

  • High-performance capillary electrophoresis in the pharmaceutical sciences.

    abstract::High-performance capillary electrophoresis (HPCE) is a new separation technique that is applied in the pharmaceutical sciences. Separations by HPCE occur in a narrow-bore capillary under the influence of an applied electrical field. Components of the sample matrix are separated and migrate at different rates based on ...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:

    authors: Brunner LJ,DiPiro JT,Feldman S

    更新日期:1995-01-01 00:00:00

  • The pharmacologic activity of ketorolac tromethamine.

    abstract::Ketorolac tromethamine is a highly potent member of a class of compounds having both analgesic and antiinflammatory activity. In animal pain models using underlying inflammation, ketorolac markedly inhibited the pain response and increased the pain threshold; it did not exhibit any narcotic or central nervous system d...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:

    authors: Rooks WH 2nd

    更新日期:1990-01-01 00:00:00

  • Key articles and guidelines for the prevention of venous thromboembolism.

    abstract::Venous thromboembolism (VTE) is an important medical problem that affects millions of patients each year. With appropriate prophylaxis, many of these thromboembolic events can be prevented. Although strong evidence supporting VTE prophylaxis spans several decades, several large American and global registries have docu...

    journal_title:Pharmacotherapy

    pub_type:

    doi:10.1592/phco.29.4.410

    authors: Dobesh PP,Wittkowsky AK,Stacy Z,Dager WE,Haines ST,Lopez LM,Nutescu E,Phillips KW,Trujillo TC,Vondracek T

    更新日期:2009-04-01 00:00:00

  • Association of the histamine N-methyltransferase C314T (Thr105Ile) polymorphism with atopic dermatitis in Caucasian children.

    abstract:STUDY OBJECTIVE:To investigate potential associations between the histamine N-methyltransferase (HNMT) gene, HNMT, C314T (Thr105Ile) polymorphism and atopic dermatitis in a cohort of Caucasian children. DESIGN:Prospective, multicenter, genotype-association study. SETTING:Four academic, tertiary care medical centers w...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,多中心研究

    doi:10.1592/phco.28.12.1495

    authors: Kennedy MJ,Loehle JA,Griffin AR,Doll MA,Kearns GL,Sullivan JE,Hein DW

    更新日期:2008-12-01 00:00:00

  • Drug-Induced Ototoxicity: A Comprehensive Review and Reference Guide.

    abstract:OBJECTIVE:In an era of increasing polypharmacy, adverse drug effects such as ototoxicity have significant public health implications. Despite the availability of evidence, many health care professionals may not know the risk of ototoxicity in common medications. Therefore, the aim of this review is to provide a compreh...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1002/phar.2478

    authors: Rizk HG,Lee JA,Liu YF,Endriukaitis L,Isaac JL,Bullington WM

    更新日期:2020-12-01 00:00:00

  • Drug absorption in gastrointestinal disease and surgery.

    abstract::It is well recognized that drug absorption from the gastrointestinal tract is influenced by gastric and intestinal motility, surface area available for absorption, and physicochemical properties of the drug. Disease and surgery have been shown to alter these factors. Consequently, drug absorption can be altered as wel...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:10.1002/j.1875-9114.1989.tb04140.x

    authors: Gubbins PO,Bertch KE

    更新日期:1989-01-01 00:00:00

  • The outcome of very low dosages of simvastatin in patients with hypercholesterolemia.

    abstract::A retrospective study evaluated the success of dosages of simvastatin lower than the 10-20 mg/day recommended by the manufacturer in patients with hypercholesterolemia. Records of 95 patients enrolled in a pharmacist-managed lipid clinic receiving stable dosages of simvastatin were reviewed. Data collected were demogr...

    journal_title:Pharmacotherapy

    pub_type: 临床试验,杂志文章

    doi:10.1592/phco.19.6.399.31045

    authors: Rindone JP

    更新日期:1999-04-01 00:00:00

  • Variability in activity of hepatic CYP3A4 in patients infected with HIV.

    abstract:STUDY OBJECTIVES:To evaluate hepatic cytochrome P450 (CYP) 3A4 activity in patients infected with the human immunodeficiency virus (HIV) using the erythromycin breath test (ERMBT), and to examine the relationship of the ERMBT to plasma concentrations of indinavir and nelfinavir. DESIGN:Prospective observational study....

    journal_title:Pharmacotherapy

    pub_type: 临床试验,杂志文章

    doi:10.1592/phco.20.11.898.35262

    authors: Slain D,Pakyz A,Israel DS,Monroe S,Polk RE

    更新日期:2000-08-01 00:00:00

  • Pharmacokinetics of intravenous trovafloxacin in critically ill adults.

    abstract::The pharmacokinetic disposition of numerous antimicrobial agents is altered in critically ill patients. Pharmacokinetics of trovafloxacin, a fluoroquinolone indicated specifically for severe, life-threatening infections in the intensive care unit, have not been well studied in this population. We characterized the pha...

    journal_title:Pharmacotherapy

    pub_type: 临床试验,杂志文章,多中心研究

    doi:10.1592/phco.20.5.400.35056

    authors: Olsen KM,Rebuck JA,Weidenbach T,Fish DN

    更新日期:2000-04-01 00:00:00

  • How safe are recently FDA-approved antimicrobials? A review of the FDA adverse event reporting system database.

    abstract:STUDY OBJECTIVE:To review quantitatively and qualitatively the U.S. Food and Drug Administration (FDA) Adverse Event Reporting System (AERS) database to provide clinicians with a general understanding of the comparative occurrence of clinically meaningful adverse events associated with 15 antimicrobial new molecular en...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1002/phar.1519

    authors: Khadem TM,van Manen RP,Brown J

    更新日期:2014-12-01 00:00:00

  • Bedaquiline: a novel antitubercular agent for the treatment of multidrug-resistant tuberculosis.

    abstract::Bedaquiline is a diarylquinoline antitubercular drug with a novel mechanism of action against Mycobacterium tuberculosis. Bedaquiline works by inhibiting bacterial adenosine triphosphate (ATP) synthase and represents the first novel class of antituberculosis agents in more than 40 years. Bedaquiline is indicated for t...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:10.1002/phar.1482

    authors: Worley MV,Estrada SJ

    更新日期:2014-11-01 00:00:00

  • Understanding and treating dyslipidemia associated with noninsulin-dependent diabetes mellitus and hypertension.

    abstract::Hypertension and diabetes appear to increase coronary heart disease risk in part by causing an abnormality in lipid metabolism. Most affected are patients with familial dyslipidemic hypertension (FDH) and noninsulin-dependent diabetes mellitus (NIDDM). The lipid disorders most often encountered in these patients are i...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:

    authors: McKenney JM

    更新日期:1993-07-01 00:00:00

  • The pharmacokinetics and pharmacodynamics of fludarabine in rheumatoid arthritis.

    abstract:STUDY OBJECTIVE:To describe the pharmacokinetics and pharmacodynamics of fludarabine in patients with rheumatoid arthritis (RA). DESIGN:Open-label, staggered trial conducted in conjunction with a phase I-II clinical trial. SETTING:Government research hospital. PATIENTS:Twenty-six patients with refractory RA. INTERV...

    journal_title:Pharmacotherapy

    pub_type: 临床试验,杂志文章

    doi:

    authors: Knebel W,Davis JC Jr,Sanders WD,Fessler B,Yarboro C,Pucino F,Boumpas DT

    更新日期:1998-11-01 00:00:00

  • Emerging roles for pharmacists in clinical implementation of pharmacogenomics.

    abstract::Pharmacists are uniquely qualified to play essential roles in the clinical implementation of pharmacogenomics. However, specific responsibilities and resources needed for these roles have not been defined. We describe roles for pharmacists that emerged in the clinical implementation of genotype-guided clopidogrel ther...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:10.1002/phar.1481

    authors: Owusu-Obeng A,Weitzel KW,Hatton RC,Staley BJ,Ashton J,Cooper-Dehoff RM,Johnson JA

    更新日期:2014-10-01 00:00:00

  • Impact of Central Nervous System Stimulant Medication Use on Growth in Pediatric Populations with Attention-Deficit/Hyperactivity Disorder: A Review.

    abstract::Central nervous system stimulants are a commonly used first-line treatment option for attention-deficit/hyperactivity disorder (ADHD). Stimulants are generally well tolerated, with anorexia and insomnia the most common adverse effects. However, there are some concerns with long-term use of stimulants, such as potentia...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:10.1002/phar.2192

    authors: Troksa K,Kovacich N,Moro M,Chavez B

    更新日期:2019-06-01 00:00:00

  • Immunosuppressive properties of calcium channel blockers.

    abstract::Calcium channel blockers are extensively used for their beneficial effects on the cardiovascular system. Solid organ transplant recipients commonly have cardiovascular disease and are often treated with these agents. Research demonstrates that calcium antagonists may have beneficial effects in this population that are...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章,评审

    doi:

    authors: Chitwood KK,Heim-Duthoy KL

    更新日期:1993-09-01 00:00:00

  • Fluconazole-induced agranulocytosis with eosinophilia.

    abstract::Fluconazole is a commonly prescribed antifungal agent with a favorable safety profile. A patient experienced agranulocytosis and eosinophilia associated with the drug. Similar bone marrow-suppressive effect due to the azoles is rarely described in the English-language literature. ...

    journal_title:Pharmacotherapy

    pub_type: 杂志文章

    doi:10.1592/phco.20.5.484.35058

    authors: Wong-Beringer A,Shriner K

    更新日期:2000-04-01 00:00:00