Dihydropyrimidine dehydrogenase gene (DPYD) polymorphism among Caucasian and non-Caucasian patients with 5-FU- and capecitabine-related toxicity using full sequencing of DPYD.

Abstract excerpt

BACKGROUND: Dihydropyrimidine dehydrogenase (DPD) is the rate-limiting enzyme of the degradation of pyrimidine base, and plays a pivotal role in the pharmacogenetic syndrome of 5-fluorouracil (5-FU). Deficiency of DPD activity leads to severe toxicities, even death, following administration of 5-FU. Several studies have demonstrated that molecular defects of the dihydropyrimidine dehydrogenase gene (DPYD) lead to...

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