Carboxyl graphene modified CuxO/Cu electrode was fabricated. The bare copper electrode was firstly anodic polarized in 1.0 mol/L NaOH solution in order to get CuxO nanoparticles, then the carboxyl graphene （CG） was ...Carboxyl graphene modified CuxO/Cu electrode was fabricated. The bare copper electrode was firstly anodic polarized in 1.0 mol/L NaOH solution in order to get CuxO nanoparticles, then the carboxyl graphene （CG） was electrodeposited on the CuxO/Cu electrode by cyclic potential sweeping. The electrocatalytic oxidation behaviors of calcium folinate （CF） at the graphene modified CuxO/Cu electrode were investigated by cyclic voltammetry. A positive scan polarization reverse catalytic voltammetry was used to obtain the pure catalytic oxidation current. The graphene modified CuxO/Cu electrode was served as the electrochemical sensor of CF, a highly sensitivity of 22.0μA.（μmol/μL）^-1cm^-2 was achieved, and the current response was linear with increasing CF concentration in the range of 2.0×10^-7 mol/L to 2.0×10^-5 mol/L, which crossed three orders of magnitude, and the detection limit was found 7.6×10^-5 mol/L （S/N=3）. In addition, the proposed sensor was successfully applied in determination of CF in drug sample.展开更多
OBJECTIVE To examine the therapeutic effects and toxicity of high-dose-folinic acid plus a 5-fluorouracil(5-FU)bolus and continuous infusion with 5-FU combined with locally produced oxaliplatin(L-HOP)in treating advan...OBJECTIVE To examine the therapeutic effects and toxicity of high-dose-folinic acid plus a 5-fluorouracil(5-FU)bolus and continuous infusion with 5-FU combined with locally produced oxaliplatin(L-HOP)in treating advanced gastric carcinoma patients. METHODS Sixty-five patients with advanced gastric carcinoma were treated with high-dose-folinic acid plus a 5-FU bolus and a 48-h continuous infusion of 5-FU combined with oxaliplatin.The effects of treatment and toxicity were observed. RESULTS There were 4 complete responses,26 partial responses, 30 with no change and 5 with progressive disease.The overall effective response rate was 46.2%(30/65).The median duration was 7 months,with the main side effects including nausea and vomiting,peripheral phlebitis,alopecia,leukopenia,dental ulcers, peripheral neuritis and diarrhea.All the side effects were tolerated and minimal. CONCLUSION The results showed that high-dose folinic acid plus a 5-FU bolus and continuous infusion of 5-FU combined with oxaliplatin appears to be a safe and effective therapy for patients with advanced gastric carcinoma.This therapeutic regimen is of value for these patients.展开更多
Objective: The aim of this study was to evaluate the efficacy and toxicity of modified docetaxel, cisplatin and calcium folinate (CF)/5-fluorouracil (mDCF) combination therapy for 27 patients with recurrent or metasta...Objective: The aim of this study was to evaluate the efficacy and toxicity of modified docetaxel, cisplatin and calcium folinate (CF)/5-fluorouracil (mDCF) combination therapy for 27 patients with recurrent or metastatic gastric adeno- carcinoma (R/MGC). Methods: From May 2006 to July 2007, 27 R/MGC patients (18 were male and 9 were female) with a median age of 49 years (range19-66) were consecutively enrolled. The mDCF protocol included 50 mg/m2 docetaxel for 1 day and 25 mg/m2 cisplatin on d2-3, 200 mg/m2 CF on d2-3 and 2000 mg/m2 5-fluorouracil (5-FU) CIV (continous infusion) for 46 h on d2-3, repeated every 2 weeks. Results: Twenty-seven patients were evaluable for efficacy and toxicity. A median of 4.5 cycles was given. One complete and 12 partial responses were observed for an overall intent to treat response rate (RR) 48.1% [95% CI (confidence intervals): 32%-64%]. Median time-to-progression (TTP) was 6.2 months and overall survival (OS) was 11.8 months. Twenty-seven (100%) patients experienced bone marrow suppression, and of them 48.9% were Grade 3-4 (16.3% were Grade 4). Two patients (7.4%) ceased chemotherapy because of bone marrow suppression. WHO Grade 1-4 non-hematological toxicity, such as oral mucositis, nausea/emesia, peripheral neuropathy, liver dysfunction, diarrhea, nephrotoxicity and cardiotoxicity, occurred in 59.2%、51.9%, 48.1%, 44.4%, 25.9%, 18.5% and 11.1% patients, respectively, and most of them were Grade 1-2. No patient died due to chemotherapy toxicity. Conclusion: mDCF regimen is effective in treating R/MGC with a high RR and long TTP/OS in this trial. Despite its severe hematotoxicity, this regimen has some advantages such as no cross-resistance with paclitaxel (paclitaxel-resistant patients RR 2/6). These results suggested that the mDCF regimen worth further investigation in clinical study of R/MGC treatment.展开更多
文摘Carboxyl graphene modified CuxO/Cu electrode was fabricated. The bare copper electrode was firstly anodic polarized in 1.0 mol/L NaOH solution in order to get CuxO nanoparticles, then the carboxyl graphene （CG） was electrodeposited on the CuxO/Cu electrode by cyclic potential sweeping. The electrocatalytic oxidation behaviors of calcium folinate （CF） at the graphene modified CuxO/Cu electrode were investigated by cyclic voltammetry. A positive scan polarization reverse catalytic voltammetry was used to obtain the pure catalytic oxidation current. The graphene modified CuxO/Cu electrode was served as the electrochemical sensor of CF, a highly sensitivity of 22.0μA.（μmol/μL）^-1cm^-2 was achieved, and the current response was linear with increasing CF concentration in the range of 2.0×10^-7 mol/L to 2.0×10^-5 mol/L, which crossed three orders of magnitude, and the detection limit was found 7.6×10^-5 mol/L （S/N=3）. In addition, the proposed sensor was successfully applied in determination of CF in drug sample.
文摘OBJECTIVE To examine the therapeutic effects and toxicity of high-dose-folinic acid plus a 5-fluorouracil(5-FU)bolus and continuous infusion with 5-FU combined with locally produced oxaliplatin(L-HOP)in treating advanced gastric carcinoma patients. METHODS Sixty-five patients with advanced gastric carcinoma were treated with high-dose-folinic acid plus a 5-FU bolus and a 48-h continuous infusion of 5-FU combined with oxaliplatin.The effects of treatment and toxicity were observed. RESULTS There were 4 complete responses,26 partial responses, 30 with no change and 5 with progressive disease.The overall effective response rate was 46.2%(30/65).The median duration was 7 months,with the main side effects including nausea and vomiting,peripheral phlebitis,alopecia,leukopenia,dental ulcers, peripheral neuritis and diarrhea.All the side effects were tolerated and minimal. CONCLUSION The results showed that high-dose folinic acid plus a 5-FU bolus and continuous infusion of 5-FU combined with oxaliplatin appears to be a safe and effective therapy for patients with advanced gastric carcinoma.This therapeutic regimen is of value for these patients.
文摘Objective: The aim of this study was to evaluate the efficacy and toxicity of modified docetaxel, cisplatin and calcium folinate (CF)/5-fluorouracil (mDCF) combination therapy for 27 patients with recurrent or metastatic gastric adeno- carcinoma (R/MGC). Methods: From May 2006 to July 2007, 27 R/MGC patients (18 were male and 9 were female) with a median age of 49 years (range19-66) were consecutively enrolled. The mDCF protocol included 50 mg/m2 docetaxel for 1 day and 25 mg/m2 cisplatin on d2-3, 200 mg/m2 CF on d2-3 and 2000 mg/m2 5-fluorouracil (5-FU) CIV (continous infusion) for 46 h on d2-3, repeated every 2 weeks. Results: Twenty-seven patients were evaluable for efficacy and toxicity. A median of 4.5 cycles was given. One complete and 12 partial responses were observed for an overall intent to treat response rate (RR) 48.1% [95% CI (confidence intervals): 32%-64%]. Median time-to-progression (TTP) was 6.2 months and overall survival (OS) was 11.8 months. Twenty-seven (100%) patients experienced bone marrow suppression, and of them 48.9% were Grade 3-4 (16.3% were Grade 4). Two patients (7.4%) ceased chemotherapy because of bone marrow suppression. WHO Grade 1-4 non-hematological toxicity, such as oral mucositis, nausea/emesia, peripheral neuropathy, liver dysfunction, diarrhea, nephrotoxicity and cardiotoxicity, occurred in 59.2%、51.9%, 48.1%, 44.4%, 25.9%, 18.5% and 11.1% patients, respectively, and most of them were Grade 1-2. No patient died due to chemotherapy toxicity. Conclusion: mDCF regimen is effective in treating R/MGC with a high RR and long TTP/OS in this trial. Despite its severe hematotoxicity, this regimen has some advantages such as no cross-resistance with paclitaxel (paclitaxel-resistant patients RR 2/6). These results suggested that the mDCF regimen worth further investigation in clinical study of R/MGC treatment.
