Please use this identifier to cite or link to this item: https://doi.org/10.2217/pgs.12.24
Title: CYP2C19 and PON1 polymorphisms regulating clopidogrel bioactivation in Chinese, Malay and Indian subjects
Authors: Chan, M.Y.
Tan, K.
Tan, H.-C.
Huan, P.-T.
Li, B.
Phua, Q.-H.
Lee, H.-K.
Lee, C.-H.
Low, A.
Becker, R.C.
Ong, W.-C.
Richards, M.A.
Salim, A. 
Tai, E.-S.
Koay, E.
Keywords: Asian
clopidogrel
CYP2C19
metabolism
pharmacogenetics
PON1
Issue Date: Apr-2012
Citation: Chan, M.Y., Tan, K., Tan, H.-C., Huan, P.-T., Li, B., Phua, Q.-H., Lee, H.-K., Lee, C.-H., Low, A., Becker, R.C., Ong, W.-C., Richards, M.A., Salim, A., Tai, E.-S., Koay, E. (2012-04). CYP2C19 and PON1 polymorphisms regulating clopidogrel bioactivation in Chinese, Malay and Indian subjects. Pharmacogenomics 13 (5) : 533-542. ScholarBank@NUS Repository. https://doi.org/10.2217/pgs.12.24
Abstract: Aim, materials & methods: We investigated the functional significance of CYP2C19*2, *3, *17 and PON1 Q192R SNPs in 89 consecutive Asian patients on clopidogrel treatment and the prevalence of functionally significant polymorphisms among 300 Chinese, Malays and Asian Indians. Results: Both CYP2C19 loss-of-function alleles (*2 or *3) were associated with higher platelet reactivity while the CYP2C19 gain-of-function allele (*17) had lower platelet reactivity. For PON1, the median PRI was not significantly different between the QQ, QR and RR groups. The allele frequencies of CYP2C19*2, CYP2C19*3 and CYP2C19*17 were 0.280, 0.065 and 0.010 (rare) for Chinese, 0.310, 0.050 and 0.025 for Malays, and 0.375, 0.010 (rare) and 0.165 for Indians, respectively. Conclusion: Our data suggest that genotyping studies to investigate clopidogrel response should include CYP2C19*2 and *3 but not *17 polymorphisms in Chinese, and CYP2C19*2 and *17 polymorphisms but not *3 in Indians. All three polymorphisms should preferably be genotyped in Malays. Original submitted 16 December 2011; Revision submitted 16 February 201. © 2012 Future Medicine Ltd.
Source Title: Pharmacogenomics
URI: http://scholarbank.nus.edu.sg/handle/10635/108902
ISSN: 14622416
DOI: 10.2217/pgs.12.24
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