Association of CYP2C19 and UGT1A4 polymorphisms with voriconazole-induced liver injury.

Aim: This study investigated the association between voriconazole-induced liver injury and gene polymorphisms of CYP2C19 and UGT1A4. Materials & methods: Thirty-eight adult patients who received voriconazole therapy were included in the study. Genotype of CYP2C19 was detected using gene chip hybrid analysis. The UGT1A4 142T>G was genotyped using PCR-RFLP analysis. Results: Ten patients (26.3%) had voriconazole-induced liver injury and were considered as the case group There was no significant difference between the two groups in genotype and allele frequencies of CYP2C19*2 and UGT1A4 142T>G (p > 0.05), however, the GA frequency of CYP2C19 *3 in the drug-induced liver injury case group was higher than that in the control group (p < 0.05). Compared with patients carrying *1/*1 or *1/*2, there was no significant difference in voriconazole trough concentration of the patients with *1/*3 (p > 0.05). Conclusion: There was no significant correlation between voriconazole-induced liver injury and gene polymorphisms of CYP2C19 and UGT1A4.

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