Genetic polymorphism of drug metabolizing enzymes (DME) can lead to severe
toxicity or therapeutic failure of pharmacotherapy. Additionally, genetical
ly determined differences in the activity of the metabolic enzymes can incr
ease an individual's susceptibility to certain types of chemically induced
cancers and possibly other diseases. Cytochrome P450 is one of the most imp
ortant metabolic systems of the organism involved in the oxidation of diffe
rent xenobiotics. This contribution summarizes and updates the information
concerning the genetic polymorphism of the CYP2A6 isoform of the cytochrome
P450. A special emphasis is put upon the genotyping techniques of CYP2AG w
ith a comparative analysis of their predictable sensitivity and specificity
given on the example of the German population. (C) 2000 Elsevier Science I
reland Ltd. All rights reserved.