The impact of age and CYP2C9 and VKORC1 variants on stable warfarin dose in the paediatric population.

The impact of age and CYP2C9 and VKORC1 variants on stable warfarin dose in the paediatric population.
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DOI:
10.1111/bjh.12817
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发表时间:
2014-06
影响因子:
6.5
通讯作者:
Ho RH
Ho RH
中科院分区:
医学2区
文献类型:
--
作者:
Vear SI;Ayers GD;Van Driest SL;Sidonio RF;Stein CM;Ho RH

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遗传变异对儿童患者华法林剂量需求的影响有限。我们进行了一项回顾性横断面研究,以检查100名儿童的变异CYP2C9和VKORC1基因型对华法林剂量的影响。那些具有VKORC 1基因型AA的患者需要纯合野生型剂量的48%(GG,p<0.0001)。携带任何变异CYP2C9等位基因的患者需要野生型剂量的71%(p=0.001)。变异VKORC 1等位基因的影响往往随年龄而变化,这表明发育个体发育可能会影响华法林敏感性。年龄、CYP2C9基因型、VKORC 1基因型和年龄:VKORC 1相互作用占华法林剂量变异性的53%。
The influence of genetic variation on warfarin dose requirement is limited for paediatric patients. We performed a retrospective, cross-sectional study to examine the effect of variant CYP2C9 and VKORC1 genotypes on warfarin dose in 100 children. Those with VKORC1 genotype AA required 48% of the dose of homozygous wild-type (GG, p<0.0001). Patients with any variant CYP2C9 allele required 71% of the dose for wild-type (p=0.001). The effect of variant VKORC1 alleles tended to vary with age, suggesting developmental ontogeny may influence warfarin sensitivity. Age, CYP2C9 genotype, VKORC1 genotype and age:VKORC1 interaction accounted for 53% of warfarin dose variability.
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