Article (Scientific journals)
Polymorphisms in the CYP 2D6 gene: Association with plasma concentrations of fluoxetine and paroxetine
Charlier, Corinne; Broly, Franck; Pinto, Emmanuel et al.
2003In Therapeutic Drug Monitoring, 25 (6), p. 738-742
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Keywords :
antidepressants; CYP 2D6 polymorphism; genetic status; plasma concentration
Abstract :
[en] Most antidepressants are metabolized by cytochrome P450 (CYP) 2D6, and it is well known that there may be significant interindividual variation in the capacity to metabolize xenobiotics. About 7 to 10% of whites are poor metabolisers (PM), and, on the contrary, about 5% are ultrarapid metabolizers (UM), inducing very different rates in the transformation of antidepressants extensively metabolized by CYP 2D6. CYP 2D6 polymorphism can be a potential risk factor for the development of side effects or a reason for the poor efficacy of the treatment. Various probe drugs may be used for phenotyping CYP 2D6, but genotyping is now available using leukocyte DNA and is independent of concomitant drug use. in this study, we used PCR-based methods for the identification of CYP 2D6 genotypes in 49 patients receiving standard doses of fluoxetine or paroxetine and found that plasma concentration of the antidepressant drugs was significantly correlated with genetic status. In one patient who displayed CYP 2D6 gene duplication (UM), paroxetine plasma concentration was extremely low. in PM fluoxetine-treated patients, drug plasma concentration was significantly higher than that seen in extensive metabolizers.
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Charlier, Corinne  ;  Université de Liège - ULiège > Département de pharmacie > Chimie toxicologique
Broly, Franck;  CHRU Lille
Pinto, Emmanuel ;  Centre Hospitalier Universitaire de Liège - CHU > Psychiatrie et psychologie médicale
Ansseau, Marc ;  Université de Liège - ULiège > Département des sciences cliniques > Psychiatrie et psychologie médicale
Plomteux, Guy ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Relations académiques et scientifiques (Médecine)
Lhermitte, Michel;  CHRU Lille
Language :
English
Title :
Polymorphisms in the CYP 2D6 gene: Association with plasma concentrations of fluoxetine and paroxetine
Publication date :
December 2003
Journal title :
Therapeutic Drug Monitoring
ISSN :
0163-4356
eISSN :
1536-3694
Publisher :
Lippincott Williams & Wilkins, Philadelphia, United States - Pennsylvania
Volume :
25
Issue :
6
Pages :
738-742
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 July 2009

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