Title : Effect of CYP2C19 genetic polymorphism on pharmacokinetics of phenytoin and phenobarbital in Japanese epileptic patients using Non-linear Mixed Effects Model approach.

Pub. Date : 2006 Jun

PMID : 16789993






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1 Effect of CYP2C19 genetic polymorphism on pharmacokinetics of phenytoin and phenobarbital in Japanese epileptic patients using Non-linear Mixed Effects Model approach. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens
2 OBJECTIVE: To clarify the effect of genetic polymorphism of CYP2C19 on pharmacokinetics of phenytoin and phenobarbital using a Non-linear Mixed Effects Modelling analysis in Japanese epileptic patients. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens
3 The total body clearance of phenobarbital decreased by 19.3% in patients with CYP2C19*1/*3 or the poor metabolizers of CYP2C19 compared with patients with normal CYP2C19 or with CYP2C19*1/*2. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens
4 The total body clearance of phenobarbital decreased by 19.3% in patients with CYP2C19*1/*3 or the poor metabolizers of CYP2C19 compared with patients with normal CYP2C19 or with CYP2C19*1/*2. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens
5 The total body clearance of phenobarbital decreased by 19.3% in patients with CYP2C19*1/*3 or the poor metabolizers of CYP2C19 compared with patients with normal CYP2C19 or with CYP2C19*1/*2. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens
6 The total body clearance of phenobarbital decreased by 19.3% in patients with CYP2C19*1/*3 or the poor metabolizers of CYP2C19 compared with patients with normal CYP2C19 or with CYP2C19*1/*2. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens
7 CONCLUSION: These findings indicated that the genetic polymorphisms of CYP2C19 contribute to the pharmacokinetic variability of phenytoin and phenobarbital, the poor metabolizers of CYP2C19, which are relatively common in Asian groups. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens
8 CONCLUSION: These findings indicated that the genetic polymorphisms of CYP2C19 contribute to the pharmacokinetic variability of phenytoin and phenobarbital, the poor metabolizers of CYP2C19, which are relatively common in Asian groups. Phenobarbital cytochrome P450 family 2 subfamily C member 19 Homo sapiens