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Pharmacogenetic Testing in Admixed Populations: Frequency of the AMR PGx Working Group Tier 1 Variant Alleles in Brazilians.
J Mol Diagn
January 2025
Clinical Research and Technological Development Division (Divisão de Pesquisa Clínica e Desenvolvimento Tecnológico), Brazilian National Cancer Institute (Instituto Nacional de Câncer), Rio de Janeiro, Brazil. Electronic address:
This article examines the frequency distribution of Tier 1 pharmacogenetic variants of the Association for Molecular Pathology Pharmacogenomics Working Group Recommendations in two large (>1.000 individuals) cohorts of the admixed Brazilian population, and in patients from the Brazilian Public Health System enrolled in pharmacogenetic trials. Three Tier 1 variants, all in DPYD, were consistently absent, which may justify their non-inclusion in genotyping panels for Brazilians; 13 variants had frequency < 1.
View Article and Find Full Text PDFThe Clinical Pharmacokinetics and Pharmacodynamics of Glimepiride-A Systematic Review and Meta-Analysis.
Pharmaceuticals (Basel)
January 2025
Department of Pharmacy Practice, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60800, Pakistan.
Glimepiride (GLM), a commonly used sulphonylurea drug for the management of type 2 diabetes mellitus (T2DM), has been the subject of numerous studies exploring its kinetic behaviors. However, a comprehensive evaluation that synthesizes all available pharmacokinetic (PK) data across diverse populations remains limited. This systematic review aims to provide detailed knowledge about the pharmacokinetics (PK), the associated pharmacodynamics (PD), and the drug interactions of GLM, which can be used to assess key parameters and identify factors influencing variability across diverse populations and clinical settings.
View Article and Find Full Text PDFPhysiologically based pharmacokinetic (PBPK) modeling of gliclazide for different genotypes of CYP2C9 and CYP2C19.
Arch Pharm Res
January 2025
College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea.
Article Synopsis
- Gliclazide is a medication for type 2 diabetes, primarily metabolized by genetic variations in the CYP2C9 and CYP2C19 enzymes.
- A physiologically based pharmacokinetic (PBPK) model was developed to analyze how these genetic differences affect gliclazide's effects in patients.
- The model accurately predicted drug concentration levels in the bloodstream, meeting standard evaluation criteria and potentially paving the way for personalized treatment plans based on genetic profiles.
Application of rapid genotyping of Warfarin individualized pharmacogenetic variants in Warfarin therapy.
Sci Rep
December 2024
Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China.
Warfarin is the most widely used oral anticoagulant in clinical practice. The cytochrome P450 2C9 (CYP2C9), vitamin K epoxide reductase complex 1 (VKORC1), and cytochrome P450 4F2 (CYP4F2) genotypes are associated with warfarin dose requirements in China. Accurate genotyping is vital for obtaining reliable genotype-guided warfarin dosing information.
View Article and Find Full Text PDFEffects of fluconazole on the pharmacokinetics of celecoxib and its carboxylic acid metabolite in different CYP2C9 genotypes.
Arch Pharm Res
December 2024
School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
This study aimed to investigate the effects of fluconazole, a moderate inhibitor of CYP2C9 and CYP3A4, on the pharmacokinetics of celecoxib and its carboxylic acid metabolite in different CYP2C9 genotypes. A total of thirty-nine healthy Korean male volunteers were divided into three different CYP2C9 genotype groups (CYP2C9*1/*1, *1/*3 and *3/*3 genotypes) and were enrolled in the celecoxib alone trial, celecoxib with fluconazole trial, or both. In the celecoxib alone trial, participants received a single oral dose of 200 mg celecoxib.
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