Association analysis of CYP2C9*3 and phenytoin-induced severe cutaneous adverse reactions (SCARs) in Thai epilepsy children.

Abstract:

:CYP2C9 is the key enzyme in aromatic antiepileptic drugs (AEDs) metabolism. CYP2C9*3 is a loss of function polymorphism. This study was designed to investigate genetic association between CYP2C9*3 and aromatic AED-induced severe cutaneous adverse reactions (SCARs) in Thai children. The 37 aromatic AED-induced SCARs patients (20 phenobarbital and 17 phenytoin) and 35 tolerances (19 phenobarbital and 16 phenytoin) were enrolled. CYP2C9*3 was genotyped by allele-specific PCRs. The association between CYP2C9*3 with phenytoin-induced SCARs and phenobarbital-induced SCARs were analyzed in comparison with tolerances and healthy samples. Significant association between phenytoin-induced SCARs and CYP2C9*3 was discovered (odds ratio=14.52; 95% confidence interval (CI)=1.18-∞, P-value=0.044). CYP2C9*3 was not associated with phenobarbital-induced SCARs. This study is the first report of CYP2C9*3 association to phenytoin-induced SCARs in Thai epileptic children. The CYP2C9*3 is a reasonable predictive genetic marker to anticipate SCARs from phenytoin.

journal_name

J Hum Genet

authors

Suvichapanich S,Jittikoon J,Wichukchinda N,Kamchaisatian W,Visudtibhan A,Benjapopitak S,Nakornchai S,Manuyakorn W,Mahasirimongkol S

doi

10.1038/jhg.2015.47

subject

Has Abstract

pub_date

2015-08-01 00:00:00

pages

413-7

issue

8

eissn

1434-5161

issn

1435-232X

pii

jhg201547

journal_volume

60

pub_type

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