A METHODOLOGICAL INVESTIGATION ON THE ESTIMATION OF THE S-MEPHENYTOIN HYDROXYLATION PHENOTYPE USING THE URINARY S/R RATIO

被引：38

作者：

TYBRING, G ^{[1
]}

BERTILSSON, L ^{[1
]}

机构：

[1] KAROLINSKA INST,HUDDINGE UNIV HOSP,DEPT CLIN PHARMACOL,S-14186 HUDDINGE,SWEDEN

来源：

PHARMACOGENETICS | 1992年 / 2卷 / 05期

关键词：

D O I：

10.1097/00008571-199210000-00007

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

After a single oral dose of racemic mephenytoin the S/R ratio in urine can be used to phenotype extensive (EM) and poor metabolizers (PM) of S-mephenytoin. We confirmed the increased S/R ratio by storage time in EM because of the hydrolysis of a conjugate of S-mephenytoin excreted in EM, but not in PM. The S/R ratio in the 0-8 h urine increased 8- to 127-fold (from 0.22 +/- 0.16 to 9.9 +/- 11.3) after acid treatment of urine from 30 EM, but there was no effect of acid in that of 12 PM. We suggest that the phenotype of mephenytoin in combination with debrisoquine can be determined in the 0-8 h urine by estimating the mephenytoin S/R ratio before and after acid treatment.

引用

页码：241 / 243

页数：3

共 11 条

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