Document Detail

Genotype and phenotype relationship in drug metabolism.
MedLine Citation:
PMID:  17117716     Owner:  NLM     Status:  MEDLINE    
Pharmacogenetics, one of the fields of clinical pharmacology, studies how genetic factors influence drug response. If hereditary traits are taken into account appropriately before starting drug treatment, the type of drug and its dosage can be tailored to the individual patient's needs. Today, the relationships between dosage requirements and genetic variations in drug-metabolizing enzymes such as cytochrome P450 (CYP) 2D6, CYP2C9, and CYP2C19 or in drug transporters such as p-glycoprotein (ABCB1) and OATP-C (SLC21A6) are substantiated best. A standard dose will bring about more adverse effects than usual if enzymatic activity is lacking or feeble. Sometimes, however, therapeutic response might be better because of higher concentrations: proton pump inhibitors for eradication of Helicobacter pylori are more efficacious in carriers of a deficient CYP2C19 variant. In some cases, genetic tests can help distinguish between responders and nonresponders of a specific drug treatment, and genotype-based dosage is possible.
I Roots; G Laschinski; F Arjomand-Nahad; J Kirchheiner; D Schwarz; J Brockmöller; I Cascorbi; T Gerloff
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Ernst Schering Research Foundation workshop     Volume:  -     ISSN:  0947-6075     ISO Abbreviation:  Ernst Schering Res. Found. Workshop     Publication Date:  2007  
Date Detail:
Created Date:  2006-11-22     Completed Date:  2006-12-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422786     Medline TA:  Ernst Schering Res Found Workshop     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  81-100     Citation Subset:  IM    
Institut für Klinische Pharmakologie, Charité, Universitätsmedizin Berlin, Germany.
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MeSH Terms
Aryl Hydrocarbon Hydroxylases / metabolism
Chemistry, Pharmaceutical / methods*
Cytochrome P-450 CYP1A1 / genetics
Dose-Response Relationship, Drug
Drug Industry / methods*
Estrogens / metabolism
Mixed Function Oxygenases / metabolism
Pharmacogenetics / methods
Pharmacology, Clinical
Polymorphism, Genetic
Receptors, Serotonin, 5-HT3 / antagonists & inhibitors
Reg. No./Substance:
0/Estrogens; 0/Receptors, Serotonin, 5-HT3; EC 1.-/Mixed Function Oxygenases; EC Hydrocarbon Hydroxylases; EC protein, human; EC P-450 CYP1A1

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