Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Dihydropyrimidine dehydrogenase (DPD) is the initial and rate-limiting enzyme involved in the degradation of 5-FU. DPD activity in peripheral blood mononuclear cells of 30 esophageal cancer patients treated with 5-FU and low-dose CDDP with irradiation was determined at the beginning of each cytostatic cycle, the objective being to determine if DPD activity is related to the occurrence of side-effects and responses to therapy. The DPD activity showed interpatient variability (mean: 325.5 pmol/min/mg protein). 5-FU-related side-effects tended to be registered more frequently in patients with low DPD activity. In particular, nausea occurred in 30.8% of patients in the high DPD activity group but, in 70.6% in those with low DPD activity (p < 0.05). The relationship between the histological response to therapy and DPD activity was nil. We propose that determination of DPD activity prior to initiation of 5-FU-based chemotherapy for patients with esophageal cancer could aid in identifying those at risk for toxicity.
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PMID:Role of dihydropyrimidine dehydrogenase activity in patients with esophageal cancer. 1255 94

Dihydropyrimidine dehydrogenase (DPD) is a reducing enzyme for fluoropyrimidine which is a widely-used anti-cancer agent, and its deficiency leads to serious toxicities. We report a rare patient with a DPD deficiency. A 39-year-old man was suspected to have a gastric cancer recurrence from the elevation of CEA. Although TS-1 was administered for five days, it was stopped due to the development of grade 2 anorexia and nausea. Although we administered UFT at his request after a one-month drug rest, grade 1 stomatorrhagia besides the former adverse events developed after five days. Therefore he discontinued it and was admitted to our hospital. After 19 days, he died from multiple brain hemorrhage despite the intensive therapies. We considered that the congenital DPD deficiency caused the development of these adverse events because the DPD value was less than 5 pmol/mg/min in mononuclear cells of peripheral blood.
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PMID:[A case of recurrent gastric cancer with dihydropyrimidine dehydrogenase (DPD) deficiency]. 1683 93