Objective To explore the diagnostic value of 64 layers spiral CT for gastric carcinoma .Methods The 87 patients (primarily diagnosed gastric carcinoma )were studied and scanned under 64 layers spiral CT including plain scans and enhanced scans respectively .The source images were reconstructed using the technique of multilane volume reconstruction (MPVR) and CT virtual endoscopy (CTVE) and conducting TNM stage ,then compared to histopathology results after surgery .Results 85 out of 87 patients with gastric carcinoma were diagnosed by CT .Detection rate of multi-detector CT(MDCT) for gastric cancer was 97 .7% , while the early stage and advanced stage gastric carcinoma were 66 .7% and 100% respectively .The accuracies of 64 layers spiral CT for the T stage ,the N stage and the M stage of the gastric carcinoma were 83 .9% ,72 .4% and 92 .0% respectively .Conclusion 64 layers spiral CT could be helpful for the diagnosis of gastric carcinoma and TNM stage .It might play great roles for the diag-nosis and treatment of gastric carcinoma .

Objective To investigate the effects of selenium-and zinc-enriched probiotics on the content of selenium and zinc in blood,antioxidation function and intestinal microflora in canine.Method Eight 18-month native canines,female and male in half,were randomly divided into the control and treatment groups on average.The control group received basal diet,the treatment group received basal diet supplemented with 2.0g selenium-and zinc-enriched probiotics everyday.To determine the experimental indices,the samples were collected on D0,D15 and D30,respectively.Results Compared with the control group,on D15,the content of selenium and zinc in blood,blood GPX,serum SOD,T-AOC and the amount of Lactobacillus in the experimental group were significantly increased,while the amount of Escherichia coli significantly decreased,but the serum MDA and the amount of Bifidobacterium,Staphylococcus and Enterococcus had no significant change.On D30,the content of selenium in blood,serum SOD,T-AOC and the amount of Lactobacillus were very significantly increased,while the content of zinc in blood,blood GPX and the amount of Bifidobacterium significantly increased;but serum MDA and the amount of Escherichia coli,Staphylococcus and Enterococcus very significantly decreased.Conclusion Selenium-and zinc-enriched probiotics could increase content of selenium and zinc in blood,enhance antioxidation function,improve and regulate the intestinal microflora.

To investigate the immunologic characteristics and cytotoxicity of the RetroNectin-activated cytokine-induced killer cells (CIK) against drug-resistant lung cancer cell lines DDP-A549 (DDP: Cisplatin). Peripheral blood mononuclear cells (PBMC) were collected from healthy donors and divided into two groups: group I and group II. Seeded samples of group I into culture flask precoated with RetroNectin and CD3MAb to induce the CIK cells while seeded the group II into culture flask precoated with CD3MAb. In both groups, IFN-gamma was put into the flask on the same day and then IL-2 on the second day. The proliferation of CIK cells was tested by cytometirc analysis. The cytotoxicity activity of CIK cells was determined by MTT assays. The phenotype changes of CIK cells were identified by flow cytometric analysis. Scanning electron microscope (SEM) and transmission electron microscope (TEM) were used to view the cytotoxicity against DDP-A549 of CIK cells and the changes of DDP-A549. The total CIK cells significantly increased by 524.77 fold in cell proliferation number due to the activation to CIK cells of RetroNectin. The expression rate of CD3+CD56+ cells was (31.40 +/- 1.91)%. The cytotoxicity of CIK cells showed statistically significance between DDP-A549 and the sensitive strains of parental generation A549 (P < 0.01). There was no significant difference of CIK cells' cytotoxicity between two groups when the effector: target ratio was fixed (P > 0.05). RetroNectin can significantly improve the proliferation activity of CIK cells. There was no evident influence to the cytotoxicity of CIK cells. CIK cells may be used as the immuotherapy to lung adenocarcinoma owing to its significant inhibition to the proliferation of DDP-A549.
Adenocarcinoma ; immunology ; pathology ; Cisplatin ; pharmacology ; Cytokine-Induced Killer Cells ; cytology ; immunology ; Cytotoxicity, Immunologic ; Drug Resistance, Neoplasm ; Fibronectins ; metabolism ; pharmacology ; Humans ; Lung Neoplasms ; immunology ; pathology ; Recombinant Proteins ; pharmacology ; Tumor Cells, Cultured

Objective To explore the appropriate pneumoperitoneum pressure in different surface area children during pediatric laparoscopic surgery,so as to attenuate the intederence with physiological function and avoid pneumoperitoneum correlative complications.Methods 120 patients underwent laparoscopic surgery were divided into three groups by different surface area:A(0.43～0.67m2),B(0.68～0.92m2),C(0.93～1.17m2).Each group was divided into two subgroups again by different pneumoperitoneum pressure:A1(4 mm Hg),A2(6mm Hg),B1(7mm Hg),B2(9mm Hg),C1(10mm Hg),C2(12 mm Hg).The cardiorespiratory function and blood gas analysis in different time point before and after pneumoperitoneum were monitored.Results The increase of PET CO2,Paw,HR,MAP and PaCO2 in A2,B2,C2 were more obvious than in A1,B1,C1(P ＜ 0.01).The eligible pneumoperitoneum pressure for A,B,C were 4,7,10mmHg respectively.The complications of gastric contents back-streaming and respiratory acidosis were 7 cases in A2,B2,C2 in all,and 3 cases in A1,B1,C1.Conclusion Using a compatible pneumoperitoneum pressure for different surface area children could attenuate the interference of physiological function and avoid pneumoperitoneum correlative complications.

The Offsite Medical Accounting Information Supervising System was developed for patients of Sichuan new rural cooperative medical scheme (NRCMS) using the C#programming language under .NET development environ-ment based on Microsoft Visual Studio 2010 in order to solve the problems in offsite medical accounting information statistics and supervision for patients of NRCMS.The system is a B/S-based MVP 3-tier structure with VPN hard-ware firewall and VPN client software plus certificate built-in, and can thus be used to supervise the offsite medical accounting for patients of NRCMS, analyze their medical advice seeking indexes at other places, and provide data for the NRCMS fund management .

Objective To investigate the immunogenicity of immunodominant cytotoxic T lymphocyte epitope E749-57 of human papilloma virus (HPV) 16 oncoprotein E7 chaperoned by heat shock protein (HSP)110. Methods Mouse HSP110 gene was cloned into prokaryotic expression vector pQE-80L for the expression of HSP110 protein, which was purified using Ni-NTA column. SDS-PAGE and Western-blot were conducted to confirm the purified mHSP110 protein, which was subsequently incubated with E749-57 peptide under heat shock condition, and high-performance liquid chromatography (HPLC) was used to evaluate the binding efficiency of the recombinant protein and E749-57 peptide. Twenty mice were divided into 4 groups to be immunized with mHSP110 protein, E749-57 peptide, mHSP110-E749-57 complex and phosphate buffered saline (PBS),respectively. Two weeks after the last immunization, spleen cells were collected from the immunized mice and divided into 2 parts: one were stimulated by E749-57 peptide followed by the detection of CD8+ INF-γ+ T cells with flow cytometry; the other one were subjected to MTT analysis for the estimation of cell proliferation. The mHSP110-E749-57 complex was also used to immunize TC-1 tumor bearing mice to observe its anti-tumor effect.Results The full-length 2577 bp-sized mHSP110 gene was amplified from mouse liver cDNA and cloned into pQE-80L vector. Direct sequencing confirmed the correctness of the cloning. SDS-PAGE and Western-blot demonstrated the successful purification of mHSP110. HPLC assay showed that the purified mHSP110 protein could bind with E749-57 to form a relatively stable protein complex. The percentage of IFN-γ+ CD8+ T cells in and proliferation index of spleen cells from the complex-immunized mice were statistically higher than those from the other 3 groups of mice. Moreover, the complex could obviously inhibit the growth of TC-1 tumor in mice. Conclusion The mHSP110-E749-57 complex could enhance the generation of specific cytotoxic T lymphocytes and exert anti-tumor effects in mice.

After a description of the background and ideas to introduce the third party testing in information system construction of Sichuan grass-root medical and health institutions and the specific working contents of third party testing team, the problems to which importance should be attached in information system construction were analyzed with suggestions put forward for their solution .

Western blotting of autophagic markers LC3Ⅱ and p62 are widely used for estimating autophagic activity. To compare the regulation of various autophagy modulators on LC3Ⅱ and p62,HEK293 cells were treated separately with mTOR-dependent autophagy activator rapamycin or -independent autophagy activators trehalose, and autophagy inhibitors including 3-methyladenine (3-MA),bafilomycin A1 or E64d and pepstatin A that inhi-bited the initiation of autophagy,the fusion of autophagosome and lysosome,and the activities of lysosomal enzymes accordingly,and then LC3Ⅱ and p62 levels were assessed. Western blot results demonstrated that rapam-ycin enhanced the conversion of LC3I to LC3Ⅱ,promoted the degradation of p62 simultaneously,while trehalose merely increased the expression of LC3Ⅱ with no influence on the p62 level. Moreover,inhibition of autophagy commonly led to accumulation of LC3Ⅱ as well as blockage of p62 degradation in a concentration- and time-dependent manner. These results indicate that obvious differences exist in the regulation of LC3Ⅱ and p62 by various modulators although both are autophagic markers.

Objective:To evaluate the prognosis and related risk factors of distal cholangiocarcinoma after surgical treatment.Methods:The clinical data of 123 patients of distal cholangiocarcinoma in Beijing Chaoyang Hospital between January 2011 and December 2019 were retrospectively analyzed, which including 72 males and 51 females, the average age was (64.9±9.2) years (range from 29 to 84 years). All patients underwent pancreatoduodenectomy. The observation measures contains: (1) Perioperative outcomes; (2) Follow-up outcomes; (3) Risk factors for long-term survival of distal cholangiocarcinoma. Follow-up was carried out to understand the long-term survival of patients, and follow-up method contains the outpatient reexamination and telephone. The deadline of follow-up date was March 2020. The normal distribution data were expressed by ( Mean± SD), and the non-normal distribution data were expressed by M ( P25, P75). Count data were expressed by cases and percentage. Kaplan-Meier method was used to calculate and draw the survival curve. Log-rank test was used to compare the survival rate. Cox proportional risk model was used in multivariate factor analysis. Results:(1) Perioperative outcomes: In our research, all of 123 patients were successfully completed the operations, and 6 patients dead during the perioperative. (2) Follow-up outcomes: The incidence of postoperative complications was 27.6%(34/123). One hundred and twenty-one patients were followed up, the follow-up rate was 98.4%, and the median follow-up time was 41.0 months.The overall 1-year, 2-year, 3-year and 5-year survival rates were 71.8%, 50.5%, 35.5% and 30.2%. And the median survival time was 42.7 months. (3) Risk factors for long-term survival of distal cholangiocarcinoma: Multivariate analysis showed that preoperative CA19-9 ( RR=1.470, 95% CI: 1.028-2.101), portal venous system invasion ( RR=2.020, 95% CI: 1.012-4.035) and tumor differentiation ( RR=1.735, 95% CI: 1.195-2.520) were independent risk factors for the prognosis. Conclusions:Radical pancreatoduodenectomy is the best treatment for distal cholangiocarcinoma. Preoperative CA19-9 level, portal venous system invasion and tumor differentiation are independent risk factors for the prognosis.

Objective To analyze the application effect of non-penetrating vascular closure system in portal vein reconstruction of allogenic liver transplantation in adults. Methods Clinical data of 222 patients undergoing allogeneic liver transplantation were retrospectively analyzed. According to whether vascular closure system was used in portal vein reconstruction during operation, all patients were divided into vascular clip group (n=137) and traditional suture group (n=85). Perioperative conditions, clinical prognosis and complications were statistically compared between two groups. Results All patients successfully completed the surgery. The success rate of one-time portal vein anastomosis was 93.4% (128/137) in the vascular clip group. A total of 14 patients died during perioperative period in this study with a mortality rate of 6.3% (14/222). No portal vein-related complications occurred during perioperative period in both groups. The time of portal vein anastomosis in the vascular clip group was (5.6±1.7) min, which was significantly shorter than (10.7±3.6) min in the traditional suture group (P<0.05). The incidence and grade of perioperative complications did not significantly differ between two groups (all P>0.05). Conclusions It is safe and feasible to utilize vascular closure system to reconstruct the portal vein during liver transplantation. Compared with traditional suture, it can effectively shorten the time of portal vein anastomosis.