Objective To compare the lymph node dissection of left chest single incision and neck-right chest-abdomen incision in esophageal cancer surgery,and to explore the reasonable range of lymph node dissection in esophageal cancer surgery.Methods We retrospectively analyzed the clinical data of 72 patients with esophageal cancer radical surgery.According to the surgical approach,the patients were divided into left chest single-incision group (32 cases) and three-incision group (40 cases).The surgery time,number of lymph node resected,drainage tube time,length of hospital stay,lymph node dissection status and incidence of postoperative complications were analyzed.Results In left chest single-incision group and three-incision group,the operative time [(225.44 ± 11.98) min vs (265.42 + 13.15) min],lymph node dissection number[(8.031 ± 1.153) vs (11.821 ± 1.138)],length of stay [(13.212 ± 1.294) d vs(15.691 ± 1.404) d] and other aspects had statistically significant differences (t =24.201,25.302,14.010,all P ＜ 0.05).There were no significant differences between two groups in the chest tube indwelling time and the incidence of postoperative complications (P ＞ 0.05).Conclusion Both surgical radical resection of esophageal cancer have their own characteristics in terms of surgical difficulty,risks,efficacy and complications.In clinical,these must be carefully evaluated in patients with lesions and body affordability flexibility to choose the surgical approach in order to achieve the best therapeutic effect.

OBJECTIVE To investigate the resistance and the disinfectant-resistant genes of chlorhexidine-sulfadiazine-resistant Escherichia coli isolates from hospitalized patients in the Lishui People's Hospital.METHODS Microdilute tests were performed to detect susceptibility to 19 kinds of antimicrobial agents in 60 E.coli strains,and the qacE△1 gene was detected by PCR.RESULTS The resistant rates to other antimicrobial agents arranged in 5.0-90.0%.The prevalence of ESBLs in isolates was 45.0%.qacE△1 Gene was 56.7%.CONCLUSIONS The 60 strains are multiple-drug-resistant.There are very high positive percentages of qacE△1 gene in E.coli isolates from the hospital.

Elsholtiza Bodinieri Vaniot has the food and medicinal value. The whole plant contains aromatic oils, flavonoids, triterpenoids, phenolic constituents, β-carotene, vitamin C and inorganic elements, and is characterized by antibacterial, antioxidant, hypolipidemic and other kinds of activity. However, few researches are on the extraction method and activity of the effective ingredient of Elsholtiza Bodinieri Vaniot. This article reviewed the chemical constituents of Elsholtiza Bodinieri Vaniot, with a purpose to provide references for further study and development.

Objective To study the expression of long non-coding RNA (LncRNA) stomach cancer-associated transcript 16 (STCAT16) in gastric cancer tissues and its effects on the proliferation, migration and invasion of gastric cancer cells.Methods The different expression of STCAT16 in 32 cases of gastric carcinoma and corresponding adjacent tissues was detected by real-time fluorescence quantitative polymerase chain reaction (PCR).The STCAT16 overexpression plasmid and empty vector was separately transfected gastric cancer cell line AGS with low expression of STCAT16.The cell proliferation of empty vector group, non-transfection group and STCAT16 analogue transfection group was evaluated by cell counting kit-8 (CCK-8) assay at 0, 24, 48, 72 and 96 hours after transfection.The colony forming ability was tested by colony formation assay.The cell invasion ability was measured by Transwell chamber assay and migration ability was tested by scratch-wound assay.The effects of STCAT16 on tumorigenicity in vivo were verified by tumorigenicity experiments in nude mice.T-test and one-way analysis of variance were performed for data analysis.Repeated measures analysis of variance was used to compare the repeated measured data among groups.Chi square test and Fisher exact probability method were used for comparison of counting data.Results The expression of STCAT16 in gastric cancer tissues was low (0.87±0.19), while it was high in corresponding adjacent tissues (2.32±0.37), and the difference was statistically significant (t=-20.859, P<0.05).The expression of STCAT16 of STCAT16 analogue transfection group was higher than that of empty vector group (3.43±0.25 vs 1.00±0.06), and the difference was statistically significant (t=-16.795,P<0.05).Compared to empty vector group and non-transfection group, the cell proliferation decreased in STCAT16 analogue transfection group at 72 and 96 hours after transfection (1.41±0.07, 1.42±0.08, 1.03±0.09, and 1.72±0.11, 1.78±0.14, 1.24±0.08, respectively), and the differences were statistically significant (t=15.043,5.358, 12.193 and 8.109, all P<0.05).The results of colony formation assay indicated that the colony forming ability of gastric cells in STCAT16 analogue transfection group was lower than that in empty vector group (97.3±9.1 vs 185.0±20.1) and non-transfection group (97.3±9.1 vs 138.0±11.1), and the differences were statistically significant (t=11.634 and 4.417,both P<0.05).The results of Transwell assay showed that the number of AGS cells passing through the membrane of STCAT16 analogue transfection group was significantly less than those of empty vector group and non-transfection group (151.0±28.1 vs 228.0±38.2 and 151.0±28.1 vs 199.3±17.9), and the differences were statistically significant (t=4.823 and 4.747,both P<0.05).After transfection for 48 hours and 72 hours, the scratch-wound repair rate of STCAT16 analogue transfection group decreased, compared with those of empty vector group and non-transfection group ((52.67±6.11)%, (53.33±5.51)%, (42.67±4.72)%, and (90.67±2.51)%, (90.60±5.41)%, (69.67±1.52)%, respectively), and the differences were statistically significant (t=5.773, 5.955, 21.000 and 5.881, all P<0.05).The results of tumorigenicity in nude mice showed that compared with those of empty vector group, the tumor size of STCAT16 analogue transfection group was smaller at one-, two-, three-and four-week ((0.42±0.10) cm3 vs (0.16±0.05) cm3, (0.66±0.13) cm3 vs (0.34±0.05) cm3, (1.25±0.22) cm3 vs (0.54±0.13) cm3, (2.54±0.46) cm3 vs (0.78±0.41) cm3)), and the differences were statistically significant (t=3.175, 4.190, 7.996 and 9.705, all P<0.05).Conclusions STCAT16 is lowly expressed in gastric cancer tissues.The proliferation, migration, invasion ability and tumorigenicity in nude mice of gastric cancer cell is inhibited after upregulating the expression of STCAT16.

Objective:To evaluate the bactericidal effects of nano-silver against Enterococcus faecalis(E.faecalis) growing in multi-species biofilm.Methods:85 biofilms were established using MBECTM P&G Assay with E.faecalis together with Fusobacterium nucleatum and P.melaninogenica.Thereafter,10 specimens were used as the controls,75 were randomly divided into 3 groups(n=25),and treated with 0.1% nano-silver (12-15 nm) solution,0.1% nano-silver (100 nm) solution and 2% hypochlorite solution,respectively.Each sample was then separated into 2 different tubes.PMA was added to one of the tubes,and the other was left untreated.Then,DNA extraction and qPCR were performed.The cycle threshold(Ct) values between samples were compared by paired t test.Results:The Ct values of the samples treated with PMA were higher than that without PMA(P=0.000) in the group of 0.1% nano-silver solution(12-15 nm)was higher than that in the group of 0.1% nano-silver solution(100 nm)and 2% sodium hypochlorite solution.(P<0.05);the value in the group of 0.1% nano-silver solution(100 nm)was larger than that in 2% sodium hypochlorite solution(P<0.05).Conclusion:0.1% nano silver solution might have a strong bactericidal effect against against E.faecalis growing in multi-species biofilm.The bactericidal effect may be enhanced with the small size of silver particles.

Objective To design Radio-Frequency Identification(RFID) reader with multi-antennas of different spatial location.Methods Design scheme of RFID reader with multi-antennas of difference spatial location was presented,i.e.a separated setting with a reader and multiple detected antennas was adopted.Each antenna only identified tags in its own area.The receiving information from tags contains antenna code and data in tag's IC.Hence the reader can point the tags position through different antenna code.Results The application of RFID with multi-antennas of different spatial location to management system of combat readiness medicine can provide safe,exact and real-time information collection,processing and query for combat readiness medicine.Conclusion The system can not only provide location identification,but also reduce system cost.It will have wide application in future.

Objective To investigate the expressions of guanylyl cyclase-c(GC-C) and caudal-type homeobox transcription factor 2 (CDX2) in human gastric tissues and precursor lesions and its significance. Methods The cancerous and paracancerous (5 cm from cancer lesion )samples from 30 cases of gastric cancer and 32 samples including 23 intestinal metaplasia and 9 dysplasia were collected. The mRNA expressions of GC-C and CDX-2 were detected by reverse transcriptase-polymerase chain reaction (RT-PCR) and proteins of GC-C and CDX-2 were measured by using Western blot and immunofluorescence methods. Results The mRNA expressions of GC-C and CDX-2 were absent in paracancerous tissues, but were 66.7% and 63.3% in cancerous tissues, respectively(P=0. 000). The Western blot indicated that expressions of GC-C and CDX-2 were 19/30 and 17/30 in cancerous tissues, but absent in paracancerous tissues(P=0. 000). The immunofluorescence examination revealed that GC-C and CDX-2 expressions were 39.1% and 39.1% in intestinal metaplasia, 55.6% and 55.6% in dysplasia, and 56.7% and 60.0% in cancerous tissues, respectively, but absent in paracancerous tissues. Moreover, expressions of GC-C and CDX-2 showed a statistical difference between intestinal-type and diffuse-type of gastric cancer (P＜ 0.05) ,but had no correlation with age, sex, size of the lesion, clinical stage and lymphnode metastasis. The positive correlation was found in expressions of GC-C and CDX2 between intestinal metaplasia and cancerous tissues(r=0. 4524 and 0. 3845, P= 0. 037 and 0. 0408, respectively). Conclusions The over expressions of GC-C and CDX2 in human gastric cancer is associated with precursor lesions and may play an important role in the carcinogenesis of gastric cancer. The examination of GC-C and CDX2 expressions will be helpful in diagnosing gastric cancer and precursor lesions.

Objective To evaluate the influence of right ventricular outflow tract septal ( RVS) pacing with right ventricular apical ( RVA) pacing on left ventricular remodeling and brain natriuretic peptide ( BNP). Methods Sixty patients with indication of pacemaker implantation were randomized into two groups, RVA group and RVS group. BNP was measured with ELISA, and echocardiography was performed to measure the left ventricular end diastolic volume ( LVEDD), left ventricular end systolic volume ( LVEDV) and left ventricular ejection fraction (LVEF) at pre-operation,and after 6,12,24 months pacing. The difference of cardiac remodeling and BNP in the two groups was observed. Results Compared to BNP at pre-operation (( 60. 2 ± 15. 7 ) ng/L) , BNP increased significantly in the RVA group at the 6th,12th and 24th month after operation( ( 108. 2 ±29. 8) , ( 190. 3 ±46. 7) ,(308. 2 ±56. 5)ng/L,respectively) (P <0. 05). In the RVS group,BNP increased only at 24 months after pacing ( (75. 2 ± 15. 8) ng/L vs. (63. 9 ± 15. 1 ) ng/L) (P < 0. 05). There was significant difference on BNP between the two groups. LVEDD,LVEDV increased,LVEF declined at 12 months after pacing in the RVA group,which were not observed in the RVS group. There was significant difference on LVEDD,LVEDV and LVEF in the RVA group (P< 0. 05) between the 12th month and pre-operation,and there were no significant difference in the RVS group (P > 0. 05). Conclusions Compared to RVA pacing,RVS pacing was more beneficial to improve heart function,prevent cardiac remodeling and decline the activation of nerve-endocrine.

Background:Recurrent acute pancreatitis(RAP)is a special type of acute pancreatitis(AP). Finding the cause is the key to avoid the recurrence of RAP. Aims:To investigate the risk factors of RAP. Methods:The clinical data of 43 patients with RAP and 130 patients with only one time AP(control group)were retrospectively analyzed. Risk factors of recurrence of RAP were analyzed. Results:Univariate analysis showed that no significant differences in etiology,severity, serum levels of cholesterol,calcium,white blood cell count,amylase,ALT,AST,total bilirubin,direct bilirubin and C-reactive protein were found between RAP group and control group(P > 0. 05). Serum triglyceride level,blood glucose level and CT score in RAP group were significantly higher than those in control group(t = 3. 260,P < 0. 05;t = 2. 720, P < 0. 05;t = 2. 162,P < 0. 05). Logistic regression analysis demonstrated that serum triglyceride level,blood glucose level and CT score were risk factors of RAP(oR = 1. 86,95% CI:1. 05-3. 68,P = 0. 03;oR = 1. 23,95% CI:1. 01-1. 50,P = 0. 04;oR = 2. 46,95% CI:1. 00-6. 03,P = 0. 04). Conclusions:The recurrence of RAP is related with serum triglyceride level,blood glucose level and CT score.

Objective In order to evaluate the possible effects of myeloid-derived suppressor cells (MDSCs) on graft versus host disease (aGVHD) development and clinical outcomes,this study systematically detected the dynamic changes of MDSCs accumulation in patients during the first 100 days after allogeneic hematopoietic stem cell transplantation (allo-HSCT).Methods Peripheral blood was obtained from 30 patients and 10 healthy volunteers with heparin anticoagulant tubes for 6 mL.For patients,peripheral blood was collected during the first 100 days after allo-HSCT and MDSCs levels were detected by flow cytometry.For measuring the serum concentrations of IL-6,IL-10,IL-1β,TNF-α,Arg-1,HO-1 and iNOS,samples were analyzed using ELISA kits.Results Patients developing aGVHD were infused with significantly less number of MDSCs [(39.94 ± 8.383) 106/kg]than in those not developing aGVHD [(209.0 ± 57.68) 106/kg,P =0.002 6];Patients developing aGVHD Ⅰ-Ⅱ and patients without aGVHD received significantly greater number of MDSCs [(61.96 ± 13.67) 106/kg and (209.0 ± 57.68) 106/kg] than in those developing aGVHD Ⅲ-Ⅳ [(20.37 ±4.304) 106/kg,P =0.013 9].After allo-HSCT,the mean percentage of MDSCs increased markedly in patients developing aGVHD [(7.725 ± 1.460)％] as compared with those not developing aGVHD [(3.423± 1.044)％,P =0.021 3].The high MDSCs group (＞53.712 × 106/kg) showed more favorable clinical outcomes than in the low MDSCs group (≤53.712 × 106/kg).The 2-year overall survival rate as 100％ in high MDSCs group,and 50％ in low MDSCs group (P =0.001 3).The cumulative incidence of 2-year relapse was 6.250％ and 29.252％ in high MDSCs group and low MDSCs group respectively (P =0.112 3).The cumulative incidence of NRM was significantly lower in high MDSCs group (0％) than in low MDSCs group (49.519％,P=0.001 8).MDSCs frequencies significantly increased in patients developing aGVHD after allo-HSCT.After allo-HSCT,the concentrations of IL-6,IL-10,TNF-α,Arg-1,iNOS and HO-1 were significantly elevated in patients developing aGVHD.Conclusion The number of MDSCs when engraftment may be used as a predictor for the development and severity of aGVHD.MDSCs might be considered as a potential new approach to regulate transplant rejection and achieve long-term survival.