Influence of MDR1 gene polymorphism (2677G>T) on expression and function of P-glycoprotein at the blood-brain barrier: utilizing novel P-glycoprotein humanized mice with mutation.

Abstract excerpt

P-glycoprotein, the encoded product of the MDR1 / ABCB1 gene in humans, is expressed in numerous tissues including brain capillary endothelial cells and restricts the distribution of xenobiotics into the brain as an efflux pump. Although a large number of single nucleotide polymorphisms in the MDR1 gene have been identified, the influence of the nonsynonymous 2677G>T/A single nucleotide polymorphism on...

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