CYP2D6 polymorphisms in patients with porphyrias

The cytochrome P-450 (CYP) isoenzymes, a superfamily of heme proteins which are the terminal oxidases of the mixed function oxidases system, metabolize more than 70% of all clinically approved drugs. The highly polymorphic CYP2D6 isoform metabolizes more than 25% of most common drugs, and the phenot...

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Autores principales: Lavandera, Jimena Verónica, Parera, Victoria Estela, Batlle, Alcira María del Carmen, Buzaleh, Ana María
Publicado: 2006
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10761551_v12_n9-10_p259_Lavandera
http://hdl.handle.net/20.500.12110/paper_10761551_v12_n9-10_p259_Lavandera
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spelling paper:paper_10761551_v12_n9-10_p259_Lavandera2023-06-08T16:05:19Z CYP2D6 polymorphisms in patients with porphyrias Lavandera, Jimena Verónica Parera, Victoria Estela Batlle, Alcira María del Carmen Buzaleh, Ana María cytochrome P450 2D6 hemoprotein iron isoenzyme oxidoreductase porphyrin derivative adult aged allele Argentina article clinical feature controlled study cytochrome P2D6 gene disease association DNA polymorphism drug exposure drug metabolism enzyme activity enzyme metabolism enzyme regulation female gene genetic analysis genotype phenotype correlation heme synthesis human iron blood level major clinical study male metabolic disorder porphyria priority journal protein family protein function Adolescent Adult Alleles Child Cytochrome P-450 CYP2D6 Female Gene Frequency Genotype Humans Male Middle Aged Phenotype Polymorphism, Genetic Porphyrias The cytochrome P-450 (CYP) isoenzymes, a superfamily of heme proteins which are the terminal oxidases of the mixed function oxidases system, metabolize more than 70% of all clinically approved drugs. The highly polymorphic CYP2D6 isoform metabolizes more than 25% of most common drugs, and the phenotypes of the 70-plus allelic variants range from compromised to excessive enzymatic activity. Porphyrias are a group of inherited or acquired metabolic disorders of heme biosynthesis, due to a specific decrease in the activity of one of the enzymes of the heme pathway. Clinical signs and symptoms of porphyrias are frequently associated with exposure to precipitating agents, including clinically approved drugs. CYP enzymes, including CYP2D6, participate in the metabolism of some porphyrinogenic drugs, leading to the deregulation of heme biosynthesis. Considering that some of the drugs not recommended for use in porphyric patients are metabolized by CYP2D6, the presence of CYP2D6 polymorphisms in porphyric patients would influence the triggering of the disease when these individuals receive a precipitating agent that is metabolized by CYP2D6. To investigate CYP2D6 polymorphisms in porphyric patients, healthy Argentinean volunteers, porphyric patients, and a group of individuals with high levels of iron were studied. Results indicated that the CYP2D6*3 and CYP2D6*4 alleles, in particular, would be linked to the onset of disease. Predictive genotyping for CYP2D6 in porphyric patients holds promise as a method to improve the clinical efficacy of drug therapy and to personalize drug administration for these patients. Fil:Lavandera, J.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Parera, V.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Batlle, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Buzaleh, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10761551_v12_n9-10_p259_Lavandera http://hdl.handle.net/20.500.12110/paper_10761551_v12_n9-10_p259_Lavandera
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic cytochrome P450 2D6
hemoprotein
iron
isoenzyme
oxidoreductase
porphyrin derivative
adult
aged
allele
Argentina
article
clinical feature
controlled study
cytochrome P2D6 gene
disease association
DNA polymorphism
drug exposure
drug metabolism
enzyme activity
enzyme metabolism
enzyme regulation
female
gene
genetic analysis
genotype phenotype correlation
heme synthesis
human
iron blood level
major clinical study
male
metabolic disorder
porphyria
priority journal
protein family
protein function
Adolescent
Adult
Alleles
Child
Cytochrome P-450 CYP2D6
Female
Gene Frequency
Genotype
Humans
Male
Middle Aged
Phenotype
Polymorphism, Genetic
Porphyrias
spellingShingle cytochrome P450 2D6
hemoprotein
iron
isoenzyme
oxidoreductase
porphyrin derivative
adult
aged
allele
Argentina
article
clinical feature
controlled study
cytochrome P2D6 gene
disease association
DNA polymorphism
drug exposure
drug metabolism
enzyme activity
enzyme metabolism
enzyme regulation
female
gene
genetic analysis
genotype phenotype correlation
heme synthesis
human
iron blood level
major clinical study
male
metabolic disorder
porphyria
priority journal
protein family
protein function
Adolescent
Adult
Alleles
Child
Cytochrome P-450 CYP2D6
Female
Gene Frequency
Genotype
Humans
Male
Middle Aged
Phenotype
Polymorphism, Genetic
Porphyrias
Lavandera, Jimena Verónica
Parera, Victoria Estela
Batlle, Alcira María del Carmen
Buzaleh, Ana María
CYP2D6 polymorphisms in patients with porphyrias
topic_facet cytochrome P450 2D6
hemoprotein
iron
isoenzyme
oxidoreductase
porphyrin derivative
adult
aged
allele
Argentina
article
clinical feature
controlled study
cytochrome P2D6 gene
disease association
DNA polymorphism
drug exposure
drug metabolism
enzyme activity
enzyme metabolism
enzyme regulation
female
gene
genetic analysis
genotype phenotype correlation
heme synthesis
human
iron blood level
major clinical study
male
metabolic disorder
porphyria
priority journal
protein family
protein function
Adolescent
Adult
Alleles
Child
Cytochrome P-450 CYP2D6
Female
Gene Frequency
Genotype
Humans
Male
Middle Aged
Phenotype
Polymorphism, Genetic
Porphyrias
description The cytochrome P-450 (CYP) isoenzymes, a superfamily of heme proteins which are the terminal oxidases of the mixed function oxidases system, metabolize more than 70% of all clinically approved drugs. The highly polymorphic CYP2D6 isoform metabolizes more than 25% of most common drugs, and the phenotypes of the 70-plus allelic variants range from compromised to excessive enzymatic activity. Porphyrias are a group of inherited or acquired metabolic disorders of heme biosynthesis, due to a specific decrease in the activity of one of the enzymes of the heme pathway. Clinical signs and symptoms of porphyrias are frequently associated with exposure to precipitating agents, including clinically approved drugs. CYP enzymes, including CYP2D6, participate in the metabolism of some porphyrinogenic drugs, leading to the deregulation of heme biosynthesis. Considering that some of the drugs not recommended for use in porphyric patients are metabolized by CYP2D6, the presence of CYP2D6 polymorphisms in porphyric patients would influence the triggering of the disease when these individuals receive a precipitating agent that is metabolized by CYP2D6. To investigate CYP2D6 polymorphisms in porphyric patients, healthy Argentinean volunteers, porphyric patients, and a group of individuals with high levels of iron were studied. Results indicated that the CYP2D6*3 and CYP2D6*4 alleles, in particular, would be linked to the onset of disease. Predictive genotyping for CYP2D6 in porphyric patients holds promise as a method to improve the clinical efficacy of drug therapy and to personalize drug administration for these patients.
author Lavandera, Jimena Verónica
Parera, Victoria Estela
Batlle, Alcira María del Carmen
Buzaleh, Ana María
author_facet Lavandera, Jimena Verónica
Parera, Victoria Estela
Batlle, Alcira María del Carmen
Buzaleh, Ana María
author_sort Lavandera, Jimena Verónica
title CYP2D6 polymorphisms in patients with porphyrias
title_short CYP2D6 polymorphisms in patients with porphyrias
title_full CYP2D6 polymorphisms in patients with porphyrias
title_fullStr CYP2D6 polymorphisms in patients with porphyrias
title_full_unstemmed CYP2D6 polymorphisms in patients with porphyrias
title_sort cyp2d6 polymorphisms in patients with porphyrias
publishDate 2006
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10761551_v12_n9-10_p259_Lavandera
http://hdl.handle.net/20.500.12110/paper_10761551_v12_n9-10_p259_Lavandera
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