Clinical effect of recombinant adenovirus containing thymidine kinase suicide gene in preventing postoperative recurrence of hepatocellular carcinoma / 临床肝胆病杂志

Objective To investigate the clinical effect of surgical operation combined with gene therapy in preventing postoperative recurrence of hepatocellular carcinoma (HCC).Methods A total of 102 patients with single HCC (TNM stage 1-2,tumor diameter ＜ 10 cm) who were admitted to Beijing YouAn Hospital,Capital Medical University,from July 2006 to February 2013 were enrolled,and among these patients,60 underwent the gene therapy with recombinant adenovirus containing thymidine kinase suicide gene (ADV-TK) before and after surgery (gene group) and 42 underwent surgical resection alone (surgery group).The patients were followed up regularly after surgery to observe postoperative recurrence.The t-test was used for comparison of continuous data between groups,and the chi-square test was used for comparison of categorical data between groups.The log-rank test was used for the analysis of cumulative recurrencc rate,and univariate and multivariate Cox regression analyses were used to identify influencing factors for recurrence rate.Results The 1-,3-,and 5-year recurrence rates of tumor were 13.8％,33.7％,and 47.7％ in the gene group and 18.5％,53.2％,and 69.2％ in the surgery group,and there was a significant difference between the two groups (x2 =2.643,P =0.041).The gene group had a significantly higher proportion of patients with pyrexia after surgery than the surgery group,and there were no significant differences in the incidence rates of other complications and length of hospital stay between the two groups.The multivariate analysis showed that gene therapy was an independent influencing factor for cumulative rumulative recurrence rate (odds ratio =2.752,95 confidence interval:1.1 64-4.251,P =0.038).Conclusion Gene therapy conbined with surgical resection can effectively reduce postoperative recurrence of tumor,and therefore,it holds promise for clinical application.

Down-regulation of ObR by lentivirus-mediated RNA interference inhibits growth of MCF-7 cells xenograft in a nude mouse model / 国际外科学杂志

ObjectiveTo investigate the inhibitory effect of lentivirusly-mediated ObR-siRNA on transplanted MCF-7 human breast cancer cells by intratumoral injection.MethodsA model of subcutaneous implanted tumor was generated through injecting MCF-7 human breast cancer cells into the nude mice.Thirty established mice with MCF-7 breast cancer cells xenograft were divided into 3 groups randomly,and mice in the experimental group were intratumorally injected with ObR-siRNA lentivirus,while the negative control group and blank control group mice were injected with the same dose of negative lentivirus and normal saline.All mice were subcutaneously injected with recombinant human leptin around the tumor site once a day.Tumor size was blindly measured every other day and the mRNA expression and protein expression levels of ObR in each group were determined.ResultsKnockdown of ObR-treated xenografted nude mice with a high leptin microenvironment was successfully established.Local injection of ObR-siRNA lentivirus significantly suppressed the established tumor growth in nude mice(P ＜ 0.01,P ＜0.01 ).Real time-PCR and Western blotting showed that the mRNA and protein expression of ObR was decreased in the ObR-siRNA lentivirus group( P ＜ 0.01,P ＜ 0.01 ).ConclusionsIntratumoral injection of recomhinant ObR-siRNA lentivirus inhibits the growth of MCF-7 cells xenografts in the nude mice,suggesting that ObR might represent a therapeutic target in the genotherapies of human breast cancer.

Effect of insulin pump in treatment of type two diabetic patients with pulmonary infections / 中国医师进修杂志

Objective To study the effect of continuous subcutaneous insulin injection(CSII) in treatment of type two diabetic patients with pulmonary infections. Methods From January 2001 to December 2005,83 type two diabetic patients with pulmonary infections were randomized to group CSII (42 cases) and group MSII(41 cases). The period of normalization of the blood glucose and cure of the pulmonary infections, cost and morbidity of low blood glucose were observed. Results Blood glucose of all patients in two groups reduced significantly. Significant difference was observed in the period of cure of the pulmonary infections, usage amount of insulin and morbidity of low blood glucose. In group CSII HbA1c, CRP and CHOL reduced significantly. Fasting CRP and high density lipoprotein-C (HDL-C) were remarkably increased. Conclusions Consecutive subcutaneous insulin pump injection is able to control the blood glucose better, to correct metabolic disorder, reduce the cost and hospital day and decrease the morbidity of low blood glucose. CSII is a better of method.

Prevention of acute renal failure in obstructive jaundice patients in perioperative period / 中国普通外科杂志

ObjectiveTo investigate the protection of renal function and the prevention of acute renal failue(ARF) in perioperative period in obstructive jaundice(OJ) patients. Methods In experimantal group, short time parenteral nutrition(PN) was given preoperatirely.Small dosage of dopamine was intravenously dripped.and rapid infusion of 20% mannitol periodically was done.In control group routine treatment was done. Postoperative blood BUN and Cr dynamic changes were examined and occurrence rate of ARF were recorded. Results No ARF occurred in the experimental group;but ARF occurred in 5 cases(29.4%)and 2 cases(17.6%) died (P