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Open AccessJournal ArticleDOI

Clinical Pharmacogenetics Implementation Consortium Guidelines for CYP2C19 Genotype and Clopidogrel Therapy: 2013 Update

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TLDR
In this article, an expanded literature review showed that CYP2C19 loss-of-function alleles confer increased risks for serious adverse cardiovascular (CV) events among clopidogrel-treated patients with acute coronary syndromes (ACSs) undergoing percutaneous coronary intervention (PCI).
Abstract
Cytochrome P450 (CYP)2C19 catalyzes the bioactivation of the antiplatelet prodrug clopidogrel, and CYP2C19 loss-of-function alleles impair formation of active metabolites, resulting in reduced platelet inhibition. In addition, CYP2C19 loss-of-function alleles confer increased risks for serious adverse cardiovascular (CV) events among clopidogrel-treated patients with acute coronary syndromes (ACSs) undergoing percutaneous coronary intervention (PCI). Guideline updates include emphasis on appropriate indication for CYP2C19 genotype–directed antiplatelet therapy, refined recommendations for specific CYP2C19 alleles, and additional evidence from an expanded literature review (updates at http://www.pharmgkb.org).

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Impact of Obesity and Bariatric Surgery on Metabolic Enzymes and P-Glycoprotein Activity Using the Geneva Cocktail Approach

TL;DR: In this article , the effects of bariatric surgery on CYP-mediated drug elimination in comparable patients before and after surgery were evaluated using a low-dose phenotyping cocktail to simultaneously evaluate the activities of six CYP isoforms and P-gp.
Book ChapterDOI

Pharmacogenomics Informs Cardiovascular Pharmacotherapy.

TL;DR: Application of pharmacogenomics to cardiovascular pharmacotherapy provides for the ability of the medical provider to gain critical knowledge on a patient's response to various treatment options and risk of side effects.
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Structural Destabilization of Intramolecular Duplexes Improves the Results of DNA Hybridization Analysis

TL;DR: This study tested a method designed to correctly identify single nucleotide polymorphisms in DNA sequences that are capable of forming a hairpin by significantly increased the specific fluorescent signals from biochip pads, thus allowing correct genotyping of rs699 and rs4986893.
Journal ArticleDOI

Age-dependent association of CYP2C19 polymorphisms with clinical outcome of clopidogrel therapy in minor stroke patients with large-artery atherosclerosis

TL;DR: Carriage of the CYP2C19 LOF allele may prevent expected clinical outcome during clopidogrel therapy in young LAA-associated minor stroke patients, whereas not in older patients.
References
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Journal ArticleDOI

Meta-Analysis: A Constantly Evolving Research Integration Tool

TL;DR: The four articles in this special section onMeta-analysis illustrate some of the complexities entailed in meta-analysis methods and contributes both to advancing this methodology and to the increasing complexities that can befuddle researchers.
Journal ArticleDOI

Prasugrel versus Clopidogrel in Patients with Acute Coronary Syndromes

TL;DR: In patients with acute coronary syndromes with scheduled percutaneous coronary intervention, prasugrel therapy was associated with significantly reduced rates of ischemic events, including stent thrombosis, but with an increased risk of major bleeding, including fatal bleeding.
Journal ArticleDOI

Ticagrelor versus Clopidogrel in Patients with Acute Coronary Syndromes

TL;DR: In patients who have an acute coronary syndrome with or without ST-segment elevation, treatment with ticagrelor as compared with clopidogrel significantly reduced the rate of death from vascular causes, myocardial infarction, or stroke without an increase in the rates of overall major bleeding but with an increase of non-procedure-related bleeding.

A Systematic Review and Meta-analysis

TL;DR: A systematic review of studies published from January 1, 1950, through November 31, 2008 using PubMed, EMBASE, Web of Knowledge, CINAHL, and all Evidence-Based Medicine Reviews found that randomized clinical trials and prospective studies of RRTs that reported data on changes in the primary outcome of hospital mortality or the secondary outcome of cardiopulmonary arrest cases were included.
Journal ArticleDOI

Genetic Structure of Human Populations

TL;DR: General agreement of genetic and predefined populations suggests that self-reported ancestry can facilitate assessments of epidemiological risks but does not obviate the need to use genetic information in genetic association studies.
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