Objective To discuss the angiogenic e ffects on tumor micrometastasis. Methods Literatures on the relation between tumor angiogenesis and micrometastasis were reviewed. Results Tumor angiogenesis was a basis of the devel opment of micrometastasis.Conclusion Micrometastic dependence on angiogenesi s gestates a novel revolution of tumor treatment.

Objective To investigate the expression of extracellular signal regulated kinase(ERK) in human gastric cancer and evaluate the relationship between ERKs protein level and clinicopathological parameters. Method Western blot was used to measure the activity and expression of ERK 1 and ERK 2 proteins and immunohistochemistry was used for localization in 42 gastric cancer patients.Results ERK 1 and ERK 2 protein levels increased in gastric cancer tissues in comparison to normal tissues ( P 0 05). Expression of ERK 1 and ERK 2 showed a positive linear correlation (r=0 550, P

Objective To study the activity of aminopeptidase N (APN) in the bile of patients with cholesterol gallstones (CGS) and rabbits fed with lithogenic diets (LD) to explore the lithogenic role of APN in the formation of gallstones. Methods Enzymatic activity of APN and lipid concentrations in bile of investigated CGS patients and LD fed rabbits were measured. The relationship between the activity of APN and CSI was statistically analyzed.Results APN activity in CGS patients′ gallbladder (GB) and bile duct (BD) biles 〔(66 0?24 1)*!U/ml and (38 4?9 4)*!U/ml〕 as well as in LD fed rabbits′ GB and BD biles 〔(14 5?4 08)*!U/ml and (9 13?1 67)*!U/ml〕 were significantly higher than that in the corresponding biles of their clinical and experimental control (CC and EC) groups 〔(23 0?7 7)*!U/ml〕 in GB bile of CC group and 〔(6 05?0 95)*!U/ml and (3 09?0 92)*!U/ml〕 in EC group. All P values were less than 0 05. A statistical positive correlation was found between the APN and CSI value in each of the groups.Conclusions It is more likely that APN might play certain role in the early neucleating period of the pathogenesis of gallstones based on its proneucleative potential and measurement of APN activity may serve as a predictive marker among patients with high risk of gallstone formation.

ObjectiveTo investigate p38 MAPK protein expression in human breast tumors and the regulation of preoperative chemotherapy. MethodsWe assessed p38 MAPK protein in 50 cases of breast cancer and adjacent normal tissue and that of breast benign tumors in 14 cases by Western blot. 15 cancer patients received preoperative CAF or TA protocol. Results The p38 protein level in tumors was significantly greater than that in the normal tissues, while there was not significant difference between benign tumors and corresponding normal tissue. p38 protein T/N ratio was higher in patients with lymph node metastasis than patients without( P

BACKGROUND:Irradiation-induced skin injury is difficult to treat and easy to recurrence.Thus,irradiation-induced skin injury has been a difficulty in clinic.With the development of stem cell engineering and tissue engineering,practical application of bone marrow mesenchymal stem cells(BMSCs) has received much attention.In particular,the potential of multi-directional differentiation displays the application prospect in field of trauma repair.OBJECTIVE:To explore the effect of BMSCs on repair of irradiation-induced acute skin injury.DESIGN,TIME AND SETTING:The randomized,grouping design,comparison study was performed at the Laboratory of Hematopathy,Second Affiliated Hospital,Soochow University from June to August 2008.MATERIALS:A total of 46 male Kunming mice,weighing(25?2) g were used.Of them,40 were used to establish models of irradiation-induced local skin injury at grade Ⅲ.METHODS:A total of 40 mice were randomly selected and anesthetized with 3.6% chloral hydrate.Mouse skin of the buttock(2.0 cm?1.5 cm) was radiated using 4 MeV electron beam(1 Gy/min),total dose of 40 Gy.Mice were randomly assigned to experimental and control groups(n = 20).Mice in the experimental group were injected with CFDA SE-labeled BMSCs(0.1 mL)(2?1010/L) through the caudal vein immediately following irradiation.Mice in the control group were treated with an equal volume of saline.The remaining 6 rats were not radiated,but infused with an equal volume of BMSCs through the caudal vein.MAIN OUTCOME MEASURES:Wound surface injury in mice,pathological changes were observed 2 and 3 weeks following irradiation in the experimental and control groups.New vessels of skin were analyzed using immunohistochemistry.BMSC distribution in mouse skin and other tissues was observed at various time points in the experimental group.RESULTS:Following BMSC transplantation through the caudal vein,the speed of skin healing was faster 4-6 days in the experimental group compared with the control group.The trauma area was smaller in the experimental group compared with the control group,with the pathological presence of mild damage in epidermis,hair follicle,sesbaceous glands and collagen fiber.There were many new blood capillary in skin wound surface.BMSCs distributed widely in injured skin and multiple organs,and the number of BMSCs was significantly greater in the experimental group compared with the control group.CONCLUSION:BMSCs promoted the regeneration of irradiation-induced acute skin injury,which might contribute the interaction between BMSCs and wound microenvironment.

1000 ml).Methods From 2000 to 2002,a total of 89 critically ill surgical patients were enrolled whose preoperative liver function and blood analysis were normal. The patients′ heart rate?blood pressure?body temperature?hemoglobin(Hb)?platelet count(PLT)?hematocrit(HCT)?prothrombin time(PT)?activated partial thrombo-plastin time(APTT)?fibrinogen concentration(FIB)?fibrinogen degrade product(FDP)?D-dimer immediately after enrollment into the study were determined. Results As the blood loss increased PT prolonged from(11.4?0.6) s to (16.0?0.6) s ( P

ObjectiveTo investigate the epidemiology and risk factors of nosocomial fungal infections in surgical intensive care unit.MethodsThe clinical data of 88 poor risk surgical patients with positive pathogenic results were retrospectively analyzed. ResultsFifty patients were complicated with simple bacterial infections and 38 patients suffered from nosocomial fungal infections. The SICU stay was longer in fungal infectious patients (20?24 vs 12?8 days; P

Objective To investigate the effect on apoptosis and extracellular signal regulated kinase (ERK) expression of cholangiocarcinoma RBE cell line induced by paclitaxel and the role of extracellular signal regulated kinase in paclitaxel-induced apoptosis. Methods By techniques of cell culture in vitro, annexin-V-FITC and propidium iodide(PI)double staining and flow-cytometry (FCM), RBE cell line was treated by paclitaxel or together with MEK inhibitor PD98059 for 24 h. Using Western blot test the expression of ERK1, ERK2, pERK after RBE cell line was treated by paclitaxel or together with PD98059. Results Paclitaxel induced RBE cell line to apoptosis, the ratio of apoptosis was 14.8%?2.7%(n=6), the control apoptosis was 3.4%?1.3%(n=6,P

Objective To observe the expression of p38MAPK activity during mitomycin-induced cell cycle arrest of cholangiocarcinoma. Using p38MAPK inhibitor SB203580 to analyze the effect on chemotherapy of cholangiocarcinoma. Methods The selected human cholangicarcinoma cell lines RBE was treated with mitomycin or together with SB203580, cell apoptosis was analysed by AnnexinV-FITC and propidium iodide(PI)double staining and flow cytometry (FCM), p38 and ATF-2 activity was detected by Western blot. Results Mitomycin induced apoptosis of RBE cell line, the ratio of apoptosis was (8.91?0.83)%( P

Objective To establish the sensitive,specific,stable and convenient immunoradio assay for detecting human soluble IL-6R?.Methods The hybridoma cell lines were obtained by fusing spleen cells of BALB/c mice that had been immunized with soluble IL-6R? protein to mouse myeloma cells sp2/0. Ascites were used to produce the monoclonal antibodies (mAbs). The mAbs were purified by protein G immunoaffinity method. The mAb SI10 was used as coating antibody, the other mAb H126 recognized different epitope from SI10 was labeled by 125I. Results The immunoradio assay for detecting soluble IL-6R? was set up. It has high stability and accuracy. The detecting limit is 10 ng/ml. The serum concentration of soluble IL-6R? is (81.96 ? 7.23) ng/ml in healthy donors and (237.58?70.96) ng/ml in patients with multiple myeloma. Significant difference was founded between two groups (P