Objective To explore the value of total grastrectomy in gastric cardia and fundus carcinoma. Methods 118 cases with cardiac cancer were treated by surgical treatment, those patients were admitted between May 1998 and May 2007 in Affiliated Baiyin Hospital of Lanzhou University. Of them,65 cases were treated by total gastractomy (group A),and 53 cases were treated by proximal gastractomy (group B). The degree of invasion, lymph node dissection, postoperative complication rate and survival rate were compared. Results The average num-ber of lymph node were 19.4±3.9 and 15.2±2.6 (P<0.05), respectively. The occurrence of lymph node metasta-sis were 40.8% (514/1261) and 54.8% (441/806),respectively. Of them, the occurrence of metastasis of lymph node of No. 5、No. 6 in group A were 15.4% (10/65)and 12.3% (8/65),respectively. The postoperative complica-tion rate were 7.7% (5/65) and 13.2% (7/53). The 1,3, and 5 year survival rates were 63.1%,46.2%,30.8% in group A and 66.0%,36.9%, 18.5% in group B, with significant differences beteen two groups in 3, 5 year sur-vival rates(P<0.05). Conclusion The way of total grastrectomy is better in cleaning lymph node than that of proximal gastrectomy, and dosen't increase the postoperative complication rate but improves 3-year and 5-year sur-vival rates in cases with cardiac cancer of Ⅰ, Ⅱ, Ⅲ stage.

Objective To explore the possible anti-inflammatory mechanism of intensive insulin therapy (IIT) by studying the effect of IIT on the levels of TNF-?,IL-6,C-reactive protein (CRP) and APACHE Ⅱ score in biliary pyemia.Methods Twenty eight patients with biliary pyemia who were admitted by our department and given an operation within 24 h form Jan.2005 to Dec.2008 were randomly divided into two groups by using random number table numbers:one group treated with IIT (IIT group,n=14) and another group treated with routine insulin therapy (RIT group,n=14).The inflammatory factors,such as TNF-?,IL-6 and CRP were detected dynamically and the APACHEⅡ score was calculated.Results The level of CRP and APACHEⅡ score on day 5 and 7 and the levels of TNF-? and IL-6 on day 3,5 and 7 after operation in IIT group were significantly lower than those in RIT group (P

Objective To investigate operative method for preventing and treatment intestinal obstruction due to relapse adhesion.Methods Sixty patients with recurrent adhesive ileus treated by surgery were randomized into two groups,that was intra-enteropexy group and extra-enteropaxy group.Twenty-three patients in intra-enteropexy group were treated by retrograde intra-enteropaxy through appendix stump.Thirty-seven patients in the extra-enteropexy group were treated by Noble procedure.The effect and complication were compared.Results In the intra-enteropexy group,2 cases (8.70%) were complicated with incision infection,1 case was died (4.35%) and there was no relapsed,abdominal spastic pain and incomplete intestinal obstruction occurred.In the extra-enteropexy group,3 cases (8.11%) were complicated with incision infection,3 cases were died (8.11%),abdominal spastic pain were occurred in 11 cases (29.73%),incomplete intestinal obstruction were occurred in 6 cases(16.22%),and there were 3 cases run into relapse.Conclusion The retrograde intra-enteropexy through appendix stump is an effective method for preventing and treatment to adhesive ileus.

Objective To investigate the interest,cognition degree,participation degree and current situation of the advanced undergraduate clinical students in our college,to discuss the reason for low level of students' scientific research quality,in order to provide the reference to making research training programs for them.Methods The advanced undergraduates of seven-year and five-year clinical program interned in orthopedics department from January to June in 2014 were selected with cluster sampling method,and investigated anonymously by questionnaires and interview.120 students were investigated by questionnaire,and 120 effective questionnaires were taken back.30 students were interviewed.Results The results showed that 90.0 percent (n=108) of students were interested in scientific activity,and 47.5 percent (n=57) of students had participated in scientific lectures.In interviews,students think factors hindering the research on the participation in scientific research are:1)too many courses and heavy school tasks;2) absence of relative knowledge;3) lack of support from college;4) tough condition for scientific training;5) immature management system.Conclusion The advanced undergraduate clinical students had great interest in scientific activity,but had few opportunities to take part in,leading to their low level of scientific research quality.A variety of measures should be taken to bolster their scientific training.

Objective To observe effect of muscle basal lamina containing neural stem cells (NSCs) in repair of spinal cord injury.Methods Thirty-six SD rats from the same nest were used in the study and spinal cord hemisection models were induced.The animals were classified to blank control group (clearance of the lesion edge only with isotonic saline),NSCs group (transplantation of NSCs to the edge),NSCs + muscle basal lamina group (transplantation of complex of NSCs and muscle basal lamina to the edge) according to random number table,with 12 rats per group.At weeks 4 and 8,survival and migration of the transplanted cells and compatibility of muscle basal lamina with the host were detected.At weeks 2,4,and 8,the hindlimb function was assayed using BBB scoring system.Results NSCs in NSCs + muscle basal lamina group grew at the lesion edge,migrated to both sides of the edge,and integrated with peripheral tissues.Whereas,few NSCs survived at the lesion edge in NSCs group and inflammatory cell infiltration was notable.At week 2,there was no statistical difference of BBB score among the three groups.At weeks 4 and 8,BBB score in NSCs + muscle basal lamina group (7.92 ± 1.00,11.38 ± 1.51) was significantly higher than that in blank control group (3.82 ± 0.75,3.71 ± 0.76) and NSCs group (6.25 ±1.06,8.25 ± 1.83) (P＜0.05).Conclusion Muscle basal lamina orients growth of NSCs along its lumen,facilitates migration of host cells to ground substance within its lumen,and reduces local inflammatory reaction.

The present paper is aimed to explore the biological osteoinductive activity of recombinant human bone morphogenetic protein 9 (rhBMP-9) by various biological technologies. In this study, we firstly obtained hBMP-9 cDNA by PCR and inserted it into vector pcDNA4/His Max to reconstruct hBMP-9 eukaryotic expression vector pcDNA4/His Max-BMP-9. Recombinant Chinese hamster ovary (rCHO) cell line expressing high-level rhBMP-9 was reconstructed by co-transfecting the expression vectors pcDNA4/His* Max-hBMP-9 and plasmid pSV2-dhfr into dihydrofolate reductase (dhfr)-deficient CHO cells and the subsequent gene amplification by the methotrexate. We finally obtained a monoclonal cell line expressing the highest level protein. We purified the medium after culturing the highest-producing monoclonal by Ni-NTA His-Bind Resin columns and concentrated to by a Centricon 50 at 4 degrees C and stored at 70 degrees C until it was used. Western blot and SDS-PAGE analyses showed a specific band of about 32kD in pro-region lane and a specific band of about 50kD in pro-region complex lane. Biological activities of rhBMP-9 were tested by colorimetric determination and histochemical staining of Alkaline Phosphatase (ALP) Activity, osteocalcin and oesteopontin for C3H10 T1/2 cells, which were stimulated culture by different concentration (20, 50, 100 microg/mL) of rhBMP-9. The results showed that the rhBMP-9 could induce osteogenic differentiation of mesenchymal stem cells (MSCs) in vitro, and were proportional to the amount. This study can provide experimental data for further tests in vivo and clinical applications.
Animals ; CHO Cells ; Cricetinae ; Cricetulus ; Growth Differentiation Factor 2 ; biosynthesis ; isolation & purification ; pharmacology ; Humans ; Osteogenesis ; drug effects ; Recombinant Proteins ; biosynthesis ; isolation & purification ; pharmacology ; Transfection