Objective:To investigate the correlation between the expression of vascular endothelial growth factor receptor KDR ,somatostatin (SS) and angiogenesis in pancreatic carcinoma and their association with the clinicopathologic characterizations. Methods:Immunohistochemical SP technique was used to detect the expression of KDR and SS. Microvessel density was determined by immunostaining for factor CD34 related antigen. Results:MVD was higher in KDR high and middle expression cases than that in low expression cases(P

OBJECTIVE:To study the hemostatic effect of reptilase on abdominal operations in perioperative period.METH-ODS:The study was conducted in 66 patients.They were randomly divided into 2 groups:reptilase group(n=35) and control group(n=31).In reptilase group,the reptilase was given in pre-operative,post-operative and intraoperative period and in control group,other commonly-used hemostants were given in the same way as in reptilase group.The amount of bleeding,the content of D-D in venous blood,the quantity of postoperative bloody drainage were compared between 2 groups.RESULTS:The amount of intraoperative bleeding,postoperative contents of D-D in venous blood and the quantity of bloody drainage in reptilase and control group were(312.1?30.3)ml,(521.5?29.2)ml(P

Objective:To investigate relationships between the single nucleotide polymorphisms(SNPs) of interleukin-1B(IL-1B) and variable number of tandem repeat (VNTR)of interleukin-1RN(IL-1RN) promoter genes and susceptibility of the patients with gastric adenocarcinoma or the patients with gastric adenocarcinoma to helicobacter pylori (Hp) infection.Methods:The SNPs of the IL-1B(-31C/T and -511C/T) were determined by gene chip and The VNTR of IL-1RN were determined by agrose gel electrophoresis with a total of 130 cases of gastric adenocarcinoma and 142 healthy controls.The sera concentrations of IgG,IgM and IgA of Hp antibodies were measured by ELISA in all cases and controls.Results:H.pylori infection was detected in 69.2% of 130 patients and 46.5% of 142 controls (P=0.007,odds ratio [OR]=2.53).Frequencies of IL-1B-31TT genotype in patients with gastric adenocarcinoma or in patients with pooly-differentiated gastric adenocarcinoma were significantly higher than those in healthy controls or in well-differentiated groups,(P

Objective:To explore side population(SP) cells in human epithelial cells and to observe the expression of the universal stem cell marker ABCG2,epidermal stem cell markers ?6 integrin and ?1 integrin on SP cells.Methods:Epithelial cells were obtained by digesting human skins with Dispase II and Trypsin and stained with Hoechst33342 and PI.The SP cells were analyzed and sorted by the fluorescence-activated cell sorter.Then the expression of ABCG2,?6 integrin and ?1 integrin was analyzed by flow cytometry.Results:SP cells accounted for 0.2%-0.3% of total human epithelial cells.Only a small part of cells expressed ABCG2,integrin ?6 and integrin ?1 of both SP cells and total human epithelial cells detected by flow cytometry.The difference of positive rates between SP cells and total human epithelial cells was not significant.Conclusion:SP cells accounted for 0.2%-0.3% of total human epithelial cells.The difference of positive rates of stem cells marker ABCG2,integrin ?6 and integrin ?1 between SP cells and total human epithelial cells was not significant.

0.05).Sexual dysfunction was 13.8% and 46.5% respectively,and was significant(P

Objective To investigate the expression of 5-LOX in pancreatic cancer tissue and the relationship between 5-LOX expression and expression of VEGF.Methods The expression of 5-LOXmRNA,(VEGFmRNA) in 35 pancreatic cancer fresh tissue samples were detected by semi-quantitive reverse(transcriptase)-polymerase chain reaction method.Results Expression of 5-LOXmRNA,VEGFmRNA in(pancreatic) cancer tissue were 74.3%,60% respectively,and the expression was correlated to the with(clinical) stages of the tumor;also expression of VEGFmRNA was correlated to the differentiation of the tumor.Expression of 5-LOXmRNA and VEGFmRNA were synergetic in pancreatic cancer(P

Objective To investigate the value of CT virtual endoscopy(CTVE) and multiple plane(reconstruction)(MPR)for preoperative staging of rectal cancer.Methods Forty-five patients with rectal(cancer) were examined by CTVE and MPR to determine the preoperative staging,and the reselts were compared with CT.Results For evaluation of intramural invasion,the accuracy rate of CTVE and MPR was 86.7%(39/45),pelvic CT was 66.7%(30/45)(P

0.05).There was correlation between the expression of 5-LOX and TNM stages.The expression of 5-LOX in stages III~IV of pancreatic cancer was markedly higher than that in stages I~II of pancreatic cancer(P

Objective To measure HPSE and VEGF-C expression in pancreatic cancer tissues and to observe the effect of small interfering RNA targeting heparanase gene on VEGF-C expression and malignant biological behavior of pancreatic cancer cell lines BxPC-3.Methods We measured the relative mRNA levels of HPSE and VEGF-C in 34 pancreatic ductal cell adenocarcinoma(PDAC) specimens by RT-qPCR.The recombinant plasmid GV230/HPSE was constructed.BxPC-3 was transiently transfected with GV230/HPSE and HPSE-siRNA.The expression levels of HPSE and VEGF-C were measured by performing florescent real-time quantitative PCR (RT-qPCR) and immunoblotting.The invasion and migration potential of treated BxPC-3 was evaluated by transwell invasion assay and Scratch-wound assay.Results Spearman rank correlation analysis indicated a positive correlation between HPSE and VEGF-C (r =0.812,P ＜0.01)in pancreatic cancer tissues.HPSE and VEGF-C overexpression was correlated with tumor differentiation,lymph node metastasis and TNM stage(all P ＜0.01).RT-qPCR and Western blot showed high expression of HPSE mRNA and VEGF-C mRNA in GV230/HPSE group than that in control group,compared to low expression of HPSE mRNA and VEGF-C mRNA in siRNA group (all P ＜ 0.01).Invasion chamber assay and Scratch-wound assay showed higher invasion in GV230/HPSE group than that in control group,while lower invasion in siRNA group (all P ＜ 0.01).Conclusions Joint detection of HPSE and VEGF-C may be of significance in predicting prognosis of patients with pancreatic cancer.HPSE regulates the expression of VEGF-C and facilitates invasion and migration of BxPC-3 in vitro.

ObjectiveTo determine the effect of total mesorectal excision with double anastomosis instruments(DAIs) in lower rectal carcinoma. MethodsFrom 1995 to 1998,57 cases of middle and lower segement rectal carcinoma were treated by total mesorectal excision with DAIs, and were followed for 3 years. Results No operative death and no anastomotic leakage were noted. Two patients suffered from anastomotic stenosis,but no dysuria and sexual dysfunction occurred. Local recurrence rate was 5.3%(3/57)in the follow-up period. ConclusionsTotal mesorectal excision with DAIs is not only an effective method to maintain pelvic organ function in lower rectal cancer, but also able to improve the living quality of patients and reduce local reccurence.