Search results for "Uridine"
showing 2 items of 142 documents
Two consecutive clinical trials on cisplatin (CDDP), hepatic arterial infusion (HAI), and I.V. 5-fluorouracil (5-FU) chemotherapy for unresectable co…
1991
Several phase III clinical trials demonstrated that hepatic arterial chemotherapy for unresectable colorectal liver metastases is able to provide significantly higher response rates than those obtained by systemic route: in more than 500 patients collected from 6 randomized trials, the median values of objective response rates were 55% after fluoxuridine (FUdR) continuous hepatic arterial infusion (HAI) vs. 18.5% after FUdR or 5-fluorouracil (5-FU) intravenous (i.v.) chemotherapy. Furthermore, the majority of those studies reported that median survival increased in the patient subgroups treated with intrahepatic chemotherapy, even if not always statistically significant [1-6]. Certainly, FU…
Identification of Insulin in Chick Embryo Retina During Development and Its Inhibitory Effect on DNA Synthesis
1992
Incubation of chick embryo retinal explants with insulin resulted in a pronounced inhibition of thymidine uptake and incorporation into trichloroacetic acid-insoluble fraction. The inhibitory effect was highest with explants from embryos at day 7 and day 8, and thereafter it declined markedly with the age of embryos until day 11. A time-course study of the effect revealed that the inhibition occurred after a lag time; both thymidine uptake and incorporation were not altered significantly after 2-6 h of incubation with insulin, but began to decrease thereafter, reaching the maximum after 16 h. The effect was also dose dependent. After 16 h of incubation, the maximal inhibition (65%) was foun…