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Mycophenolate mofetil (MMF), a widely used immunosuppressant, is characterized by highly variable pharmacokinetics. UGT1A8, UGT1A9, UGT2B7 and ABCC2 have been proved to be critical genes associated with inter-individual variation of MMF pharmacokinetics. In this study, we investigated the genetic polymorphisms of UGT1A8*2, UGT1A8*3, UGT1A9 C-2152T, UGT1A9 T-275A, UGT1A9 T98C, UGT2B7*2, ABCC2 C-24T and ABCC2 C3972T in 200 Chinese renal transplant recipients and compared them with those in other ethnic groups reported in the literature, to start the exploration of a better use of MMF in Chinese. A much higher frequency of UGT1A8*2 variant allele was found in Chinese than in Caucasians and Africans, while the UGT2B7*2 variant allele was significantly rarer in Chinese than in Caucasians and Africans. For ABCC2, -24T allele was more common and 3972T allele was less common in Chinese than in Caucasians and Africans. However, none of the SNPs in UGT1A9 were present in our study population. The findings of this study suggest that Chinese renal transplant recipients may exhibit a response profile to MMF that is different from those of other ethnic groups.

Citation

Xiao-Ying Deng, Chang-Xi Wang, Xue-Ding Wang, Hui-Chang Bi, Xiao Chen, Jia-Li Li, Min Huang. Genetic polymorphisms of UGT1A8, UGT1A9, UGT2B7 and ABCC2 in Chinese renal transplant recipients and a comparison with other ethnic populations. Die Pharmazie. 2013 Apr;68(4):240-4

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PMID: 23700788

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