Objective To investigate the protective effect and its mechanism of edaravone against rat renal tubular epithelial cell injury induced by cisplatin. Methods The rat renal tubular epithelial cells (NRK-52E) were divided into the control, model control (50μmol·mL-1 cisplatin), group A (50μmol·mL-1 cisplatin plus 10μmol·mL-1 edaravone), B (50μmol·mL-1 cisplatin plus 20 μmol·mL-1 edaravone), and C (50 μmol·mL-1 cisplatin plus 40 μmol·mL-1 edaravone). The cell proliferation ability, content of malondialdehyde, activity of superoxide dismutase(SOD), level of reactive oxygen species ( ROS) , rate of apoptosis, express of protein and mRNA of Bax, Bcl-2 and Caspase-3 activation of cell were detected. Results The proliferation and SOD activity in NRK-52E cells declined, malondialdehyde and ROS were elevated upon being co-cultured with cisplatin. Moreover, the rate of apoptosis, express of protein and mRNA of Bax and Bcl-2, and Caspase-3 activation of cells were upregulated compared to the control group. However, edaravone stimulated cell proliferation, SOD activity and protein and mRNA of Bcl-2 and lowered content of malondialdehyde, level of ROS, rate of apoptosis, express of Bax protein and mRNA and Caspase-3 activation of cell(P<0. 05). Conclusion Edaravone can alleviate rat renal tubular epithelial cell injury induced by cisplatin, via inhibiting oxidative stress and down-regulating cell apoptosis.

Objective To evaluate the treatment effect of sustained low-efficiency diafiltration( SLEDF) on patients with severe acute pancreatitis( SAP). Methods Forty-two patients with SAP were randomly divided into continuous veno-venous hemofiltration( CVVH)group with 22 patients and SLEDF group with 20 patients. In addition to routine treatment,patients in CVVH and SLEDF were administrated to patients respectively in two groups. Mortality,incidence of complication,clinical symptoms,sign and laboratory examination and recovery time were recorded and measured. The scores of acute physiology and chronic health evaluation( APACHE)II and multiple organ dysfunction syndrome( MODS ) were performed. The level of C-reactive protein( CRP ),tumor necrosis factor-α( TNF-α),interleukin( IL )-6 and IL-8 were measured. Results There were no significant differences in terms of the mortality(90. 91% vs. 90. 00%;χ2 =0. 010,P=0. 920),incidence of complication (18. 18% vs. 20. 00%;χ2 =0. 023,P =0. 881)and recovery time of clinical symptoms,sign and laboratory examination in CVVH group and SLEDF( P﹥0. 05 ). There were also no significant differences between CVVH and SLEDF group in terms of scores of APACHE II((12. 1 ± 6. 1)vs.(11. 9 ± 7. 2);t=0. 097,P=0. 920), MODS((4. 3 ± 1. 7)vs.(4. 4 ± 1. 8);t=0. 185,P=0. 850),CRP((161. 7 ± 22. 9)mg/L vs.(157. 6 ± 21. 8) mg/L;t=0. 594,P=0. 550),TNF-α((5. 8 ± 1. 9)ng/L vs.(5. 7 ± 1. 8)ng/L;t=0. 175,P=0. 860),IL-6 ((4. 1 ±1. 2)pg/L vs.(4. 2 ± 1. 1)pg/L;t =0. 282,P =0. 780)and IL-8((3. 3 ± 1. 4)pg/L vs.(3. 2 ± 1. 0)pg/L;t=0. 268,P=0. 790)at 72 h post-treatment. However,the above test indices were decreased at 72 h post-treatment than those at admission(P﹥0. 05). Conclusion SLEDF and CVVH are proved with same treatment effect based on the levels of inflammatory cytokine,alleviating pathogenetic condition and improving prognosis in patients with severe acute pancreatitis.

Objective CRT has gained acceptance as a useful form of device therapy for patients with refractory congestive heart failure. Despite recent technical advances, some problem still remained unsolved. The study highlighted some of these issues and try to provide possible solutions. Methods Since February 1999, about 50 patients underwent CRT. The CS lead was implanted with PTCA wire for dislodgment of lead in 3 patients. Injury of CS was present in 5 patients. Elevation in left ventricular pacing threshold was found in 2 patients who received early CRT. Results The patients who implanted the CS lead with PTCA wire acquired satisfactory capture threshold without any complication. Pace makers were implanted successfully in all 5 patients with CS injury The CS leads were extracted successfully from the 2 patients with elevated ventricular pacing threstold. Conclusion Implantation of the CS lead is a main step in the operation of CRT and prompt management to its related problems can enhance the operation success rate.

Objective To explore the clinicopathological and immunohistochemical features, diagnosis and treatment,prognosis of hepatoid adenocarcinoma of the stomach with neuroendocrine tumor.AFP, Syn, CgA, Ki-67, P53 were stained by immunohistochemistry and follow-up was conducted by telephone.Methods Hepatoid adenocarcinoma of the stomach with coexisting neuroendocrine tumor was identified in 13 cases from June 2004 to June 2014 in Ren Ji Hospital.Results Among the 13 cases of hepatoid adenocarcinoma of the stomach coexisting with neuroendocrine tumor patients, there were 7 males and 6 females, with an median age of 62 years.Tumors located in the gastric cardia in 2 cases, in the gastric antrum in 8 cases and in the gastric body in 3 cases.Tumor ranged from 1-19 cm.The follow-up rate was 100％.The median overall survival rate was 12 months, two patients died of liver metastasis and one patient died of anastomotic recurrence.Serum AFP increased in 10 patients with hepatoid adenocarcinoma of the stomach coexisted with neuroendocrine tumor.The structure consisted of hepatoid cell differentiation and adenocarcinoma differentiation and neuroendocrine differentiation area by histological microscope examination.Immunohistochemical staining showed that tumor regional AFP, Syn, CgA, Ki-67, P53 were positive.Conclusions Hepatoid adenocarcinoma of the stomach coexisting with neuroendocrine tumor is very rare, it is made up of three structures : hepatoid cell differentiation, adenocarcinoma differentiation and neuroendocrine differentiation area.Diagnosis relies on immunohistochemical and histological examination.

To study the effects of intraperitoneal chemotherapy (IPC) plus Shenmai Injection (SMI) in treating advanced colorectal cancer following radical resections.

Objective To understand the awareness status of knowledge on malaria control among residents and students,so as to evaluate the effectiveness of health education during the elimination phase of malaria in Jinshan District ,Shanghai City. Methods In 2010 and 2014,the stratified sampling and cluster sampling methods were taken to select the investigation sites, including 3 villages,1 middle schools,1 primary school,then the residents above 15 years old and the students in the above se?lected sites were investigated by questionnaires to understand their awareness status on malaria control. Results In 2010,the general awareness rates of malaria control knowledge of the study objects were 74.22%,and those of the residents,middle school students,and primary school students were 75.68%,61.86%and 72.20%,respectively. There was no significant differ?ence between the awareness rates of objects with different gender(χ2=1.755,P>0.05). The rate of the residents was higher than that of the students(χ2=59.838,P<0.01). From 2010 to 2014,a series of health education on malaria control was car?ried out. In 2014,the general awareness rate of knowledge on malaria control was 96.03%,and those of the residents,middle school student,and primary school students were 92.28%,98.59%and 99.49%,respectively. The awareness rate of the stu?dents was higher than that of the residents(χ2=275.794,P<0.01). Conclusion Through the health education and communi?ty advocacy,the awareness rates of knowledge on malaria control among residents and students have improved and met the quali?fication of malaria elimination in Jinshan District.

BACKGROUND: Using low-intensity pulsed ultrasound (LIPU) to promote the repair of articular cartilage injury is very common,and we also have more options to choose the cytoskeleton, but the application conditions of LIPU and the appropriate cytoskeleton have not reached any consensus yet.OBJECTIVE: To investigate the feasibility of establishing tissue-engineered cartilage by cell-free allograft demineralized bone matrix (CFDBM) co-cultured with rabbit cartilage cells and bone marrow mesenchymal stem cells (BMSCs) in vitro, and to investigate the effect of LIPU on the cells in CFDBM.DESIGN, TIME AND SETTING: Multiple sample observation was performed at the Institute of Biomedical Engineering, Second Military Medical University of Chinese PLAfrom May to August 2009.MATERIALS: The CFDBM was prepared as modified Urist's method; the cartilage cells were obtained using mechanical disintegration and enzyme digestion; the BMSCs were separated using whole bone marrow rinsing method, purified, and amplified layer by layer.METHODS: As CFDBM With a composite of different cellular components, and whether applying LIPU stimulation, the samples were divided into four groups: chondrocyte group, BMSCs group, compound group (CFDBM was compounded with chondrocytes,BMSCs, and chondrocytes/BMSCs, respectively, without LIPU stimulation), and LIPU group (CFDBM was compounded with chondrocytes/BMSCs, and then the samples were stimulated with LIPU on the second day, 1.0 MHz frequency, 10 mW/cm~2 transient spatial intension, 20 min/d).MAIN OUTCOME MEASURES: ① the 2~(nd)-generation of cartilage cells and BMSCs were examined by immunohistochemical method; ② The CFDBM prepared as modified Urist's method was examined as HE staining; ③ The samples of four groups were examined by collagen II immunohistochemical staining on the 21~(st) day.RESULTS: ① The collagen II immunohistochemical staining of the second generation of the articular cartilage cells showed that the morphostructure was polygon, star or round, and pseudopodia extended, and the cells were rich in cytoplasm; the cytoplasm was brownish yellow, and the cell nuclear was round. ② The result of immunohistochemical staining of BMSCs showed that,CD34 was negative, CD44 and CD105 were positive. ③ In the center of CFDBM prepared as modified Urist's method, there was no obvious cell-like structure and the gap size was uniform. ④ On the 21~(st) day after combining CFDBM with cells, collagen II immunohistochemical staining demonstrated that BMSCs group was negative, chondrocyte group was weak positive, compoundgroup was positive, and the LIPU group was strongly positive.CONCLUSION: ① Biological property of the 1~(st)-3~(rd)-passage chondrocytes and BMSCs was similar to primary-cultured cells. ②Both chondrocytes and BMSCs had a highly proliferative ability in CFDBM. ③ 10 mW/cm~2 LIPU could not affect activity of BMSCs but could promote differentiation Into articular cartilage cells, and it also could not promote celt proliferation.

Objective:To research the rule of melatonin nasal absorption.Methods: The stability of melatonin in rat nasal wash was studied, after that the in situ rat nasal recirculation methods were used as experimental animal model to study the rule of melatonin nasal absorption.Results:Melatonin was stable in rat nasal wash, its absorption in nasal cavity accorded with first order kinetic equation. The absorption rate constants did not vary with melatonin concentrations.Conclusion:The mechanism of melatonin nasal absorption is passive diffusion, the average absorption rate constant is 1.054?10 -2 min -1 .

OBJECTIVE To investigate the qacE△1-sul1 genes in multidrug-resistant Gram-negative bacilli and their significance.METHODS A total of 225 strains of multidrug-resistant Gram-negative bacilli were clinically isolated.The genes of qacE△1-sul1 were analyzed using polymerase chain reaction(PCR).RESULTS From them 120 strains of multidrug-resistant Gram-negative bacilli were found the qacE△1-sul1 genes.The positive rate of qacE△1-sul1 was 53.3%.CONCLUSIONS There are high percentages of qacE△1-sul1 genes in multidrug-resistant Gram-negative bacilli.

Objective To analyze the projects on the infectious disease epidemiology sponsored by the National Natural Sci?ence Foundation of China(NSFC),explore the hotspot and development trend,and offer a reference for researchers in this field. Methods Based on the NSFC database,the projects on the infectious disease epidemiology(H2609)sponsored from 1987 to 2014 were analyzed. The changes of fund numbers,amounts and research fields were described. Results During the study period,NSFC sponsored 373 projects,including 228 general projects(61.1%),78 youth projects(20.9%)and 67 other projects(18.0%). The average amount of the grant was 358.2 thousand Yuan(20 thousand?8 million). The main sponsored re?search fields were mechanisms of pathogen and immunity(36.2%)and population?based epidemiological studies(33.0%). The top three diseases were hepatitis,HIV/AIDS and tuberculosis. Conclusion The amount of funding on researches of infectious disease epidemiology has increased continuously,which has played an important role in training scientific talents in the field of prevention and control of infectious diseases.