Objective:To explore the effects of lipoxygenase inhibitor NDGA on telomerase and bcl-2 of breast cancer MCF-7 cells.Methods:MCF-7 cells in the logarithmic growth state were selected and measured.Four cell groups (concentration:0,1,10,100?mol/L)were divided in the experiment.After 48h treatment of NDGA,the mRNA expression of telomerase was examined by RT-PCR and the expression of bcl-2 was measured by flow cytometry.Results:After 48h treatment of different concentration of NDGA,the expressions of hTERTmRNA and bcl-2 in NDGA groups were both significantly lower than the control group (P0.001).Conclusion:NDGA can prevent proliferation and induce apoptosis in MCF-7 cells by means of the down-regulated expressions of hTERTmRNA and bcl-2.

Objective:To explore the effects of VEGF and CD44V6 on breast cancer MCF-7 cells by NDGA.Methods:MCF-7 cells in the logarithmic growth state were selected and measured.There were four cell groups(concentration:0,1,10,100?mol/L)in the experiment.After 48h treatment of NDGA,the expression of VEGFmRNA was measured by RT-PCR and the expression of CD44V6 was examined by flow cytometry.Results:After treatment of NDGA,the expressions of VEGFmRNA and CD44V6 in NDGA groups were significantly lower than that of the control group(F=2996.13,P

Objective To investigate the diagnostic and predictive value of measuring peritoneal inflammatory cytokines in predicting biliary fistulas in patients undergoing biliary surgery.Methods Peritoneal samples and serum samples of 3227 biliary surgery patients were collected on the first,third,fifth postoperative day,and IL-6,IL-8,IL-10,TNF-? and CRP of the samples were measured.Patients were divided into two groups:those with clinical evidence of biliary fistulas and those without any evidence of biliary fistulas.The age,sex,operative method and operative time between the two groups were compared.Results There was a negative correlation between biliary fistulas and age,sex and operation mode;but blood loss,operation time and common bile duct diameter had positive correlation with biliary fistulas.Peritoneal cytokine levels were significantly higher in patients with biliary fistulas as compared to those without biliary fistulas.Conclusions The peritoneal cytokine level is a sensitive parameter of peritoneal inflammation and can be as an additional diagnostic tool for the early prediction of biliary fistulas after biliary surgery.