The study on human embryonic stem cell regeneration is one of the current hot issues of life science.Dialectically analyzing its benefits and harms and the scientific application of the therapy of human diseases.It will surely initiate a new model of clinic treatment.

Objective: To construct the eukaryotic expression recombinant plasmid of cadF gene of Campylobacter jejuni Pen: 19 and to identify its express in COS-7 cells.Methods: Total DNA of Campylobacter jejuni Pen:2?Pen:8?Pen:19 and Pen: 21 were used as templates respectively and cadF gene DNA with KpnI and EcoRI sites were amplified by PCR reactions using same primer.Because of its closest association with Guillain-Barr? syndrome,the PCR product of Pen:19 was selected as target gene and inserted into the eukaryotic expression vector pcDNA3.1(+) and the recombinant plasmid pcDNA3.1(+)-cadF was constructed.The recombinant plasmid was identified by restriction enzyme digestion and PCR reaction and was confirmed by sequencing.The recombinant plasmid was then transfected into mammalian cell COS-7 for mRNA expression and the expression were investigated by RT-PCR reaction.Results: It was confirmed with restriction enzyme digestion and PCR reaction and sequencing that cadF gene was cloned into pcDNA3.1(+) successfully.The objective gene was amplified from COS-7 cell transfected with the recombinant plasmid pcDNA3.1(+)-cadF by RT-PCR.Conclusion: The eukaryotic expression recombinant plasmid pcDNA3.1(+)-cadF is constructed and expressed in COS-7 cell successfully.The results obtained lay the foundation for research on development of Campylobacter jejuni DNA vaccine.

Objective To evaluate the diagnostic value of serum angiopoietin-2 (Ang-2) level for gastric cancer.Methods Serum Ang-2 level waa measured by enzyme-linked immunosorbent assays (ELISA) in samples from 108 patients with gastric cancer,50 patients with chronic gastritis and 50 normal controls.Results The serum Ang-2 level in patients with gastric cancer [(1539.0 ± 449.3) ng/L] was significantly higher than that in patients with gastritis [(1044.6 ± 246.1) ng/L,P ＜ 0.01] and normal control [(1075.6 ± 228.2) ng/L,P ＜ 0.01)].There was no significant difference of serum Ang-2 level between patients with gastritis and normal control.Gastric cancer patients with lymph node metastasis had significantly higher serum Ang-2 level than those without metastasis (P ＜0.01).The area under ROC curve of serum Ang-2 level for diagnosis of gastric cancer was 0.819.Conclusion The serum Ang-2 level will be a useful indicator for diagnosis of gastric cancer.

AlM: To observe the clinical curative effect of calcium dobesilate capsule and yimaikang tablet for treating retinal vein occlusion ( RVO) .METHODS:A total of 120 patients (167 eyes) with RVO were divided into 2 groups at random. The control group of 60 cases ( 82 eyes ) were given calcium dobesilate capsule, and the treatment group of 60 cases ( 85 eyes ) received calcium dobesilate capsule and yimaikang tablet. Changes of visual acuity and clinical effects after 3 courses of treatment were compared and analyzed for all patients.RESULTS: Markedly effective 15 cases ( 23 eyes ) , effective 42 cases (57 eyes) and invalid 3 cases (5 eyes) in the 60 cases (85 eyes) of the treatment group, the total effective rate was 94. 1%. Eighty-two eyes of 60 cases in the control group, markedly effective in 8 cases ( 12 eyes), effective 38 cases (49 eyes), ineffective 14 cases (21 eyes), The total effective rate was 74. 4% in the control group. There were significant differences between the 2 groups of curative effect, and low incidence rate of adverse reaction. CONCLUSlON: Calcium dobesilate capsules and yimaikang tablet is effective and safe in the treatment of RVO.

Objective To explore the mechanism of Xiao Chaihu decoction in t he treatment of endometriosis in rats.Methods The rat model of endometriosis w as established. Fas and Caspase- 3 protein expression in the eutopic endometriu m and eutopic endometrium were observed by immunohistochemical method.Results The protein expression of Fas and Caspase- 3 in ectopic endometrium of Xiao Cha ihu decoction group was higher than that in the eutopic endometrium, while the r esult in the control group was just the opposite. No significant difference was shown in Danazol group. Conclusion The therapeutic mechanism of Xiao Chaihu de coction for endometriosis may be related to the promotion the apoptosis of ectop ic endometrium tissue by increasing Fas protein expression.

Objective To explore the therapeutic mechanism of Xiao Chaihu Decoction for endometriosis in rats. Methods The rat models of endometriosis were treated with Xiao Chaihu Decoction, Danazol, and Xiao Chaihu Decoction plus Danazol for 4 weeks,respectively. And then cyclooxygenase-2(COX-2) expression in endometrium and endometriotic tissue was observed by immunohistochemistry method. Results The expression of COX-2 in the endometriotic tissue was lower than that in endometrium in Xiao Chaihu Decoction group and Xiao Chaihu Decoction plus Danazol group, while the results in Danazol group and control group were opposed to those in the above two groups. Conclusion The mechanism of Xiao Chaihu Decoction for rats endometriosis may be related to the decrease of COX-2 expression in ectopic Endometrium, thus reducing the formation of prostaglandins.

Objective To explore left ventricular longitudinal axis systolic asynchrony by real-time triplane quanti-tativetissue velocity imaging(RT-3PE QTVI) and two-dimensional speckle tracking imaging(STI) in patients with dilated cardiomyopathy. Methods Thirty normal adults were included as the control group and thirty adults with DCM. The images from enough frame rates RT-3PE QTVI and STI were obtained from series long-axis views. Simp-son method was used to measure LVEF. Q-lab software was used to measure peak systolic tissue velocity(Vs) and peak systolic longitudinal strain (Ls),its time to peak point from each segment(Ts,Tls) and the maximal temporal difference of Ts,Tls(Ts-diff,Tls-diff),and the standard deviation of. Ts,Tls(Ts-SD,Tls-SD),which were served as systolic asynchrony indexes in assessing LV longitudinal axis systolic asynchrony. Results ① Compared the con-trol group and DCM group,there were significant differences in LVEDd,LVESd,LVEDL,LVESL,LVEF,FS (P<0.01). ② In comparison with the control group,the Ls and Vs of each segment were decreased in the DCM group (P<0.01). Compared with the control group,the parameters of Tls and Ts in DCM group had obvious ahead or de-layed(P<0.05). ③ Compared with the control group,the parameters of Ts-SD, Tls-SD, Ts-diff, Tls-diff,were significantly different in DCM group (P<0.01). Ts-SD,Tls-SD,Ts-diff,Tls-diff corrrlated negatively to LVEF(r=-0.67,-0.72,-0.75, -0.77,P<0.01). Conclusion The prevalence of left ventricular longitndinal axis systolic asynchrony exits in patients with DCM. There is a better technique to evaluate LV longitudinal axis systolic asynchrony by RT-3PE QTVI and STI than only one.

Objective To evaluate the effect of color Doppler ultrasound monitoring in artificial arteria-venous fistula in patients with uraemia.Methods 25 cases were examined with upper limbs arteriovenous fistulas with uremia and analysed by CDFI and 2D.The fistula and blood vessel was observe and hemodynamics changes were examined.Results Among 25 patients,18 cases showed good filling state of the vessel,3 cases with anastomoses stenosis,2cases with thrombus and 2cases with venous dilatations.Conclusion CDFI is an effective supplementary detective methods in treating hemodialysis patients with uremia.

Objective To explore the influence of ICAM-1 and LFA-1 on the breast cancer metastasis and provide scientific base for studying the molecular mechanism of breast cancer metastasis by observing the expression of ICAM-1(intercellular adhension molecule1) and LFA-1(Lymphocyte function related antigen 1) in different time different metastasis stage of breast cancer. Methods We observed the expression of ICAM-1 and LFA-1 in breast cancer tissue as well as the expression of ICAM-1、LFA-1 and VEGFR-3 in Lymphatic vessel endothelial cell of nearby the breast cancer tissues from the patients of the operation in the defferent stages with the methods of HE staining and immunohistochemistry staining. Results The positive rate of ICAM-1 and LFA-1 expression in cancer cell and cancer nest of breast cancer was increased gradually along with the increase of clinical stages and the occurrence of lymph node metastasis. And the positive rate of ICAM-1、LFA-1 and VEGFR-3 expression in lymphatic vessel endothelial cell of nearby the breast cancer tissues was increased gradually too along with the increase of clinical stages and the occurrence of lymph node metastasis,which has the positive correlation,and it has the positive correlation that the ICAM-1 and LFA-1 expressed in Lymphatic vessel endothelial cell of nearby the breast cancer tissues(P0.05).Conclusion The ICAM-1 and LFA-1 were related with breast cancer lymph metastasis,and the ICAM-1 and LFA-1 promoted breast cancer lymph metastasis through synergism each other.The increase or decrease of ICAM-1 and LFA-1 expression in the breast cancer tissue and lymphatic vessel endothelial cell of nearby the breast cancer tissues could as the data target to display certain instruction function for prevention and treatment of breast cancer lymph metastasis.The Lymphatic vessel quantity of nearby the breast cancer tissues was increased along with tumor progress, which may be related with breast cancer lymph metastasis.VEGFR-3 has the high specificity in the lymphatic vessel endothelial cell expression,and may act as the lymphatic vessel as the lymphatic vessel endothelial cell specific marker.

Objective To elucidate the significance of expressive change in tissues of breast carcinomas.Methods Expression of PTEN protein was detected by immunohistochemistry (SP) in breast carcinomas?atypical intraductal hyperplasia?normal breast tissue. Results The positive rate and expressive intensity of PTEN protein in breast carcinoma were lower and weaker than those in atypical intraductal hyperplasia and normal breast. The intensity of PTEN protein expression was associated with differentiation degree of breast carcinoma, the poorer differentiation of breast carcinoma , the weaker expression of PTEN protein. Comparing with breast carcinoma, the PTEN expression level of atypical intraductal hyperplasia was higher , but It was lower than normal breast tissue. it is helpful for us to assess the carcinogenesis probability of atypical intraductal hyperplasia by detecting the PTEN.