Objective To study the expression and significance of CD44v6 and E-Cadherin( E-cd) in human renal cell carcinoma. Methods Immunohistochemical method was used to detect CD44v6 and E-cd expression in 20 normal renal tissues and 72 primary renal cell carcinoma tissues. Results The postive expression rate of CD44v6 in normal renal tissues and primary renal cell carcinoma tissues was 15 00% and 66 67% respectively with significant difference (P

Objective To investigate the relationship between IGF2BP3 hypomethylation with colon tumor differentia?tion. Methods Tissue samples from 41 colorectal cancer were collected from March 2011 to August 2011 in our hospital, among which 19 cases were well-differentiated adenocarcinoma, 12 cases were of moderately differentiated adenocarcinoma and 10 cases were of poorly differentiated adenocarcinoma. Meanwhile biopsy samples from 12 cases of colonic colitis were collected as a control. The expression of IGF2BP3 was assessed by immunohistochemistry and Western blot. An innovate of ELISA technique was used to examine global methylation levels while IGF2BP3 methylation level was tested by methylation specific PCR technique. Results The expressions of IGFBP3 are higher in all colon cancer groups than that in colitis (P<0.05). The expression of IGFBP3 in poorly differentiated adenocarcinoma is higher than that in all the other groups, but there is no significant difference between its expressions in the well differentiated group and in the moderately differentiated adeno?carcinoma group. The global DNA level and IGFBP3 methylation level of every colon cancer group is lower than those in coli?tis (P<0.05). Also, a tendency of decreasing global DNA and IGFBP3 methylation status was observed comparing well differ?entiated towards poorly differentiated carcinomas (P<0.05). Conclusion IGF2BP3 expression in colorectal cancer is asso?ciated with differentiation of colon cancer tissue. A lower global and IGF2BP3 DNA methylation suggest a worse differentia?tion of colon cancer. DNA hypomethylation may therefore play a regulatory role in the expression of IGF2BP3 in colon cancer tissue.

Objective The aim of this study is to evaluate the effects of drug,electric cardiovertion,radiofrepuency ablation and implantable anti-atrial-fibrillation pacemaker on patients with persistent idiopathic atrial fibrillation.Methods 58 patients with persistent idiopathic atrial fibrillation were treated with drug or electric cardjovertion,radiofrequence ablation and anti-atrial-fibrillation pacemaker.Results There were 30 patients successfully converted to sinus rhythm by drug.The mean conversion time of drug was 8?5 days.22 patients were converted by electric cardioversion.10% of cases(6 of 58)failed to convert by both methods.In follow-up period,12 cases of patients were healed,19 cases got significant improvement,14 cases got moderate improvement,8 cases had no improvement.The total efficiency rate was 76%.18 cases in successful cardioversion patients were healed,5 cases got significant improvement,5 cases got moderate improvement,4 cases had no improvement.The total efficiency rate was 75%(14 of 18).2 cases got improvement by anti-atrial-fibrillation pacemaker.Conclusion Combined treatment of drug,electric cardioversion,radiofreqency ablation and anti-atrial-fibrillation pacemaker can imrove cure rate of persistent idiopathic atrial fibrillation.

Objective　To investigate the effect of breast milk and some other kinds of infant foods on the adhesion of EPEC to Hela cells and intestinal mucosa so as to understand the possible protective mechanism of breast-feeding in the intestine of infants. Methods　The adhesion of EPEC to Hela cells and intestinal mucosa were examined by cell culture, bacterial adherence test, light and electron microscopy in the mediums that contain breast milk, cow's milk and formula milk or contain ecal filtrate of the infants fed by breast milk and formula milk respectively. Results　Adhesive index for EPEC to Hela cells was significantly lower in the medium containing breast milk than in control and so did in the fecal medium containing breast fed infants than artificial feeding infants. Conclusion　Breast milk may inhibit the adhesion of EPEC to infant intestine.

Objective:To observe the changes of TLR4 and IL-6 expression in rats hippocampus CA1 region in remote ischemic postconditioning(RIP) and explore its significance.Methods: All the 72 male SD rats were divided into Sham group,Contrast group and RIP group randomly.Each group was divided into 4 time points:12h,24 h,48 h and 72 h group.There were 6 rats in each group.Use the cerebral ischemia-reperfusion model which was established with modified Longa method as the contrast group.The method of RIP was to Fasten rats Posterior limbs by a tourniquet for 30 min immediately,then relax them for 30 min, repeat 3 times.To observe the pathological variation of hippocampus CA1 region by HE dyeing;to test the expression of TLR4 and IL-6 by immunohistochemical staining.Results: Compared to contrast group, neuronal loss and swelling reduced significantly in RIP group.Compared to sham group, the TLR4 and IL-6 expression in contrast group and RIP group increased significantly ( P<0.05 ) .Compared to contrast group,the TLR4 and IL-6 expression in RIP group reduced significantly(P<0.05).Conclusion:RIP dose have protective effect on cerebral ischemia.The effect may be associated with the inhibition of TLR4 and IL-6 expression.

Objective:To investigate the behavior of tobacco use among migrants in construction sites and explore the associated factors .Methods: A total of 652 migrants in 10 construction sites were selected in Xi’ an and Tongchuan .Chi-square and logistic regression were used to analyze the influencing factors of tobacco use.Results:The average age of the migrants in the construction site was (38.23 ± 10.61), and males occupied 82.7%(535/647) of the total.The current smoking rate of the migrants was 55.8%(364/652), with 64.3%(344/535) in males and 14.3%(16/112) in females.82.5%(329/399) smokers wanted to quit smoke , however only 52.7%(210/399) had tried quitting smoking in action, and 8.8%(35/399) quitted smoking successfully .Multivariable regression indicated that the migrants who were at lower age , and sick within 2 weeks, had perceived not difficult to stop smoking and who disagree with the benefits of smoking were more likely to try to quit smoking .Conclusion:Migrants in construction sites show their characteristics of old age , low level of health literacy , male-domination , high smoking rate and high intention of quitting smoking .Tobacco control projects should be implemented in construction sites to promote the translation of smoking quitting intention into action .

Objective To explore the more than 80-year-old age patients laparoscopic cholecystectomy clinical curative effects and complications.Methods More than 260 cases of 80-year-old require cholecystectomy older patients,patients with detailed records related history,select one of the 200 patients with laparoscopic cholecystectomy to treatment,the rest of the 60 patients to do open cholecystectomy treatment,to observe the clinical curative effect of the two groups ; For patients with laparoscopic group in postoperative patients according to whether there was the occurrence of complications were divided into two groups,using multiple factors regression analysis the factors caused by complications.Results Laparoscopic surgery group blood loss,operative time,length of hospital stay,drainage time,lead flow,the surgical incision length were (62.7 ± 60.3) ml,(62.7 ± 21.4) ml,(5.6 ± 1.3) d,(3.6 ± 0.7) d,(174.4 ± 121.4)ml,(4.9 ± 1.2)cm,open group were (210.4 ± 120.4)ml,(115.7 ±30.4)ml,(8.8 ±3.4)d,(6.2 ± 2.5) d,(318.2 ± 132.5) ml,(12.2 ± 1.4) cm,two groups of various observation indexes were statistically significant differences (t =3.16,4.16,2.18,3.16,2,56,5.18,P ＜ 0.05).Laparoscopic cholecystectomy patients in 200 cases of 6 patients with complications (3.0％),single factor analysis results showed that:age,diabetes history,operation time and blood loss,drainage laparoecopic cholecystectomy complications had a correlation (P ＜ 0.05) ;Multiple factors analysis results showed that:with the age increasing,diabetes history was laparoscopic cholecystectomy complications independent risk factor (P ＜ 0.05).Conclusion For age more than 80 years patients,laparoscopic cholecystectomy down than open surgery has good curative effect,its complications are the main factors for increased age and always have diabetes history.

Objective To study the apoptotic activity of hydroxycamptothecin (HCFT) against human gastric carcinoma and its mechanism of action.Methods The apoptotic activity of HCPT against gastric carcinoma SGC-7901 cells was detected by MTT assay.The apoptosis occurrence was determined by Annexin V/PI staining and flow cytometry analysis.The mRNA expression of Bmi-1 was detected by real-time PCR analysis.Western blot analysis was used to detect the protein expression of Bmi-1.Results The IC50 values of HCPT against gastric carcinoma SGC-7901 cells was (4.87 ± 0.35) μ mol/L.After treatment with 0,5,10,20 μ mol/L HCPT for 48 h,the percent of apoptosis was elevated from (1.62 ± 0.37)％ to (21.45 ±4.54)％,(36.67 ±5.38)％,(54.26 ±7.14)％ and the 2-△Ct values of Bmi-1 mRNA was decreased from 0.614 ±0.022 to 0.445 ±0.018,0.376 ±0.012,0.215 ±0.010,there had significant difference among the different treatment (P ＜ 0.01).Treated with 0,5,10,20 μ mol/L HCPT for 48 h,the protein expression of Bmi-1 was down regulated by HCPT treatment in a dose-dependent manner by Western blot analysis.Conclusion HCPT shows effective activity to induce apoptosis in gastric carcinoma cells,which is mainly related to the down regulation of Bmi-1.

ObjectiveTo study the roles of cytokeratin-19 ( CK-19 ),vimentin,vascular endothelial growth factor-C( VEGF-C ),and cyclooxygenase-2 ( COX-2 ) played in the occurrence and development of Graves'disease(GD) and Hashimoto's thyroiditis(HT).Methods57 cases of GD and 58 cases of HT were enrolled in our study.Immunohistochemistry using SP method was carried out for assessment of the expression of CK-19,vimentin,VEGF-C,and COX-2 in the thyroid tissues.Results CK-19,VEGF-C,and COX-2 were expressed in the cytoplasm of thyroid follicular epithelial cells.Vimentin was expressed both in the mesenchyma and in the cytoplasm of thyroid follicular epithelial cells.The positive rates and expression intensities of CK-19 and VEGF-C in HT ( 86.2％,96.6％ ) were significantly higher than those in GD ( 43.9％,56.1％,all P＜0.05 ).The expression intensities of vimentin and COX-2 in GD ( 100.0％,93.1％ ) were similar to those in HT ( 100.0％,91.2 ％ ),while the expression intensity of COX-2 in HT was significantly higher than that in GD( all P＜0.05 ).The positive rates of CK-1 9 were much higher in type Ⅲ ( 81.3％ ) of GD than in type Ⅰ ( 1 5.8％ ) and type Ⅱ ( 40.9％ ) of GD,and also higher in type P( 100％ ) of HT than in type L(66.7％ ) of HT.The positive rates of VEGF-C were much higher in type Ⅲ ( 87.5％ ) of GD than in typeⅠ ( 36.8％ ) and type Ⅱ ( 50.0％,all P ＜ 0.05 ) of GD.ConclusionImmunohistochemical detection of the expression of CK-19,vimentin,VEGF-C,and COX-2 may carry clinical significance in revealing the occurrence and development as well as evaluating the prognosis of Graves'disease and Hashimoto's thyroiditis.

Objective To study the impact on pregnant outcome of reducing the number of embryos transferred from three to two in women at age less than 35 who received frozen-thawed embryo transfer (FET). Methods The analysis was performed on 90 FET cycles (77 infertile couples,less than 35 years old) with slow-freezing/rapid-thawing method, including 48 cycles with two embryos transferred and 42 cycles with three embryos transferred. The embryo survival rate, high quality embryo rate, clinical pregnancy rate, implantation rate and multiple pregnancies rate were analyzed. Results No significant differences in embryo survival rate (88.9% versus 88.1%), high quality embryo rate (89.6% versus 81.0%), clinical pregnancy rate (37.5% versus 42.9%), implantation rate (26.0% versus 18.3%) and multiple pregnancy rate (38.9% versus 16.7%) were observed between two and three embryos transferred group (all P > 0.05). However, there were 2 triple pregnancies in three embryos transferred group while none in two embryos transferred group. Conclusion Reducing the number of high quality embryos transferred from three to two in women at age of less than 35 years old who received FET,could decrease the incidence of triple pregnancy and keep the similar clinical pregnancy rate.