A case of 5-fluorouracil toxicity


https://doi.org/10.4081/jbr.2011.4648
Vol. 84 No. 1 (2011)
Submitted: August 1, 2014
Accepted: August 1, 2014
Published: January 30, 2011
Abstract Views: 558
PDF: 427
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Dihydrouracil (UH2)/Uracil (U) ratio in plasma was determinated as a surrogate marker for dihydropyrimidine dehydrogenase (DPD) activity. The purpose of the study was to investigate the ralationship between the UH2/U plasma ratio and the variation of DPD gene (DPYD), associated with a deficiency of DPD activity, in a patient who developed a severe adverse reaction to 5-fluorouracil. Patient's plasma smaple and those of 20 healthy volunteers, used as control, were analyzed. The plasma concentrations of UH2 and U were assayed by HPLC-UV. UH2/U plasma ratio of the patient was 4.31; the mean ± SD of UH2/U plasma ratios in controls was 5.26 ± 2.08. The UH2/U ratio of the patient was lower than the mean values recorded from a reference population suggesting a reduction of DPD activity according to haplotype of the patient, previously identified.

Fucile, C., Marini, V., Robbiano, L., Mattioli, F., & Martelli, A. (2011). A case of 5-fluorouracil toxicity. Journal of Biological Research - Bollettino Della Società Italiana Di Biologia Sperimentale, 84(1). https://doi.org/10.4081/jbr.2011.4648

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