Objective To understand the microcystin(MC-LR)pollution in drinking water in the city and countryside of Fuling District,Sichuan,China.Methods In 2004,285 water samples were collected from different types of water in Fuling district in different season and the concentration of LR(MC-LR),total phosphorus and total nitrogen in water were determined respectively.Results From July to November in 2004,no LR(MC-LR)was detected and the total phosphorus and total nitrogen did not exceed the national standard limits in the drinking water in the city,but in the secondary water supply in the city,the MC-LR was detected,the total phosphorus and total nitrogen exceed the standard limits.In the countryside,the MC-LR was detected,the total phosphorus and total nitrogen exceed the standard limits.Conclusion In the countryside of Fuling District,Sichuan,China,the drinking water,water source and tap water,was seriously contaminated by microcystin,the total phosphorus and total nitrogen exceed the national standard limits.

Objective To evaluate the therapeutic efficacy and adverse reactions of raltitrexed plus oxaliplatin (RALOX project) and S1 in patients with advanced primary liver cancer.Methods Seventy-one patients with advanced primary liver cancer admitted to 6 cancer centers from July 2013 to July 2015 were divided into 2 groups according to the wishes of the patients and their families:RALOX group (34 patients) and S1 group (37 patients).The therapeutic efficacy such as objective remission rate (ORR),disease control rate (DCR),median overall survival (mOS),median progression free survival (mPFS),one year survival rate (SR),and adverse reactions in these patients were evaluated.Results Thirty-one patients could be evaluated in RALOX group,and 6 patients obtained partial response (PR),10 stable disease (SD) and 15 progressive disease (PD).Thirty-three patients could be evaluated in S1 group,and 3 patients obtained PR,8 patients SD and 22 PD.The ORR,DCR,and one year SR were 19.4％ vs.9.1％,51.6％ vs.33.3％,and 22.6％ vs.12.1％ respectively,and there were no statistically significant differences in the two groups (x2 =1.393,P =0.238;x2 =2.190,P =0.139;x2 =1.229,P =0.268).The mOS and mPFS were 7.2 months vs.6.1 months and 3.4 months vs.2.8 months,and there were statistically significant differences in the two groups (x2 =6.433,P =0.011;x2 =4.078,P =0.043).There was more serious peripheral nerve toxicity (29.0％ vs.3.0％,x2 =6.344,P =0.012) and lighter hand-foot syndrome (9.7％ vs.30.3％,x2 =4.201,P =0.040) in RALOX group than S1 group.But the incidences of other adverse effects were similar in the two groups.Condnsion RALOX project is safe and effective to the patients with advanced primary liver cancer.Compare with S1 project,RALOX project has better curative effects and the majority of adverse reactions are tolerable.The patients have good condition control and survival benefit.

Objective To explore the clinical efficacy and drug-toxic reactions of raltitrexed combined with oxaliplatin (RALOX protocol) and 5-fluorouracil + calciumfolinate + oxaliplatin (FOLFOX 4 protocol) in the treatment of patients with middle and advanced primary liver cancer (PLC).Methods A total of 72 patients with PLC were selected and randomly divided into RALOX group (n =34) and FOLFOX 4 group (n =38).The objective response rate (RR) was evaluated every 6 weeks after chemotherapy,while objective remission rate (OR),disease-control rate (DCR),median survival rate (mOS),median progression-free survival (mPFS),1-year survival rate (SR) as well as toxic and adverse reactions were observed.Results In RALOX group,31 patients were evaluable,with OR,DCR,mOS,mPFS,and 1-year SR being 19.4％,51.6％,7.2 months,3.4 months,and 22.6％,respectively.In FOLFOX 4 group,29 patients were evaluable,with OR,DCR,mOS,mPFS,and 1-year SR being 13.8％,48.3％,6.9 months,3.3 months and 20.7％,respectively.RALOX group was significantly lower than FOLFOX 4 group in the incidence rates of gastrointestinal reactions,liver toxicity,cardiac toxicity,peripheral nervous toxicity and hand-foot syndrome,but there were no significant differences in the incidence rates of renal toxicity and myelosuppression between two groups.Conclusion RALOX is safe and effective in the treatment of patients with middle and advanced PLC,and is superior to FOLFOX 4 protocol in clinical efficacy with mild adverse reactions.

Objective To explore the clinical efficacy and drug-toxic reactions of raltitrexed combined with oxaliplatin (RALOX protocol) and 5-fluorouracil + calciumfolinate + oxaliplatin (FOLFOX 4 protocol) in the treatment of patients with middle and advanced primary liver cancer (PLC).Methods A total of 72 patients with PLC were selected and randomly divided into RALOX group (n =34) and FOLFOX 4 group (n =38).The objective response rate (RR) was evaluated every 6 weeks after chemotherapy,while objective remission rate (OR),disease-control rate (DCR),median survival rate (mOS),median progression-free survival (mPFS),1-year survival rate (SR) as well as toxic and adverse reactions were observed.Results In RALOX group,31 patients were evaluable,with OR,DCR,mOS,mPFS,and 1-year SR being 19.4％,51.6％,7.2 months,3.4 months,and 22.6％,respectively.In FOLFOX 4 group,29 patients were evaluable,with OR,DCR,mOS,mPFS,and 1-year SR being 13.8％,48.3％,6.9 months,3.3 months and 20.7％,respectively.RALOX group was significantly lower than FOLFOX 4 group in the incidence rates of gastrointestinal reactions,liver toxicity,cardiac toxicity,peripheral nervous toxicity and hand-foot syndrome,but there were no significant differences in the incidence rates of renal toxicity and myelosuppression between two groups.Conclusion RALOX is safe and effective in the treatment of patients with middle and advanced PLC,and is superior to FOLFOX 4 protocol in clinical efficacy with mild adverse reactions.