Objective To investigate the expression of extracellular signal regulated kinase(ERK) in human gastric cancer and evaluate the relationship between ERKs protein level and clinicopathological parameters. Method Western blot was used to measure the activity and expression of ERK 1 and ERK 2 proteins and immunohistochemistry was used for localization in 42 gastric cancer patients.Results ERK 1 and ERK 2 protein levels increased in gastric cancer tissues in comparison to normal tissues ( P 0 05). Expression of ERK 1 and ERK 2 showed a positive linear correlation (r=0 550, P

Objective To investigate the protective effects of propofol preconditioning on myocardium against hypothermia ischemia normothermia reperfusion injury on isolated rat hearts. Methods The Langendorff apparatus was used.Sixty SD rat hearts were divided randomly into 5 groups after 20-minute equilibrium(n=12): control(Con) group,hearts were continually perfused with K-H buffer for 175 min;ischemia/reperfusion(I/R) group,hearts were perfused with K-H buffer for 40 min,then subjected to global ischemia at 27 ℃ for 75 min,and followed reperfusion at 37 ℃ for 60 min;propofol preconditioning group 1(P1),group 2(P2),and group 3(P3),hearts were perfused with K-H buffer including 50,100,and 150 ?mol/L propofol for 10 min and followed reperfusion like I/R group,respectively.Heart rate(HR),left ventricular end-diastolic pressure(LVEDP), left ventricular developed pressure(LVDP) and ?dp/dtmax at the end of equilibration,pre-ischemia and at the end of reperfusion were recorded.The contents of creatine kinase(CK) and lactate dehydrogenase(LDH) in coronary effluent were measured at the end of equilibration and 1,10,20,30,and 60 min during reperfusion.The activity of superoxide dismutase(SOD) and the contents of maleic dialdehyde(MDA) were measured at the end of reperfusion.The area of infarct region was determined at the end of reperfusion. Results HR,LVDP,?dp/dtmax and SOD activity in P2 and P3 group were higher than those in I/R group(P

Standardized training program for residents in Shanghai is one of the important measures in the health care reform.In accordance with Implementary methods of standardized training for residents in shanghai (for trial implementation),the department of stomatology in the affiliated Changzheng Hospital quickly initialized the standardized training program by defining the training objectives,establishing the training mechanisms,formulating the training contents and building the system of the assessment.Special attention was paid to improve the professional skill of the residents including ① clinical diagnostic ability; ② medical theoretical level and the medical thinking ability; ③ interpersonal communicational skill; ④ professionalism; ⑤ scientific research ability.Useful exploration was made to test the feasibility of the training program based on the practices and the effect was encouraging.

Objective To determine the significance and expression of S100A9 and NMP238 in cervical carcinoma with different concurrent chemoradiotherapy sensitivities. Methods Fresh carcinoma tissues were collected from untreated cervical carcinoma patients and preserved at -80 ℃. The tissues were classified into 2 groups:a high sensitivity group (HS) and a low sensitivity group(LS) according to their response to concurrent chemoradiotherapy. Protein was separated by 2-dimensional gel electrophoresis (2-DE). Peptide mass fingerprintings (PMF) were acquired by matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) and the proteins were identified by data searching in the Mascot-database. Differential expressed proteins were assayed by Western blot and immunohistochemistry.Results Most of the gels were clear and were successfully and reproductively analyzed. Intensity and rate of S100A9 expression were higher in the HS group than in the LS group,and those of NMP238 expression were higher in the LS group than in the HS group. Conclusion S100A9 and NMP238 expression is associated with concurrent chemoradiotherapy sensitivity in cervical carcinoma.

Objective To explore the effect and application value of percutaneous transhepatic various interventional technique for treatment of common bile duct stones.Methods 46 patients with common bile duct stones were treated.All patients were treated by percutaneous transhepatic cholangiopancreatography in order to confirm the number and location and size of the stones.Place me-chanical lithotripsy net according to the size of stones.Then percutaneous transhepatic balloon dilation.Postoperatively biliary tract was drained for 2 weeks.Results 45 operations were successful,The successful rate was 97.83%.Complete stone removal was obtained with one session in 41 patients and two sessions in 4 cases,respectively.There was no serious complications occurred during the operation. There was no perforation and bleeding,but hyperamylasemia occurred in 3 patients and acute pancreatitis occurred in 1 patient and bile perito-nitis occurred in 2 patients.Conclusion Percutaneous transhepatic various interventional technique can keep the function of papillary sphincter and is a valuable methed for patients suffering from common bile duct stones with a high successful rate and safety.

Objective To investigate the efficacy of laparoscopic hepatectomy for the treatment of hepatocellular carcinoma (HCC).Methods The clinical data of 30 HCC patients who were admitted to the Affiliated Cancer Hospital of Guangxi Medical University from January 2011 to December 2011 were retrospectively analyzed.All patients were divided into the laparoscopic hepatectomy (LH) group (10 patients) and open hepatectomy (OH) group (20 patients) according to the operation patterns and at the ratio of 1 ∶ 2.The degree of cirrhosis,size and location of tumor of the 2 groups were analyzed using the covariance analysis.The student t test was used for analysing the difference of the 2 groups.Results In the LH group,7 patients received laparoscopic nonanatomical liver resection,3 received anatomical resection of the left lateral lobe,no patient was converted to the hand assisted laparoscopic surgery or open surgery.In the OH group,14 patients received non-anatomical liver resection,and 6 received anatomical liver resection.The volume of blood loss of the LH group was (247 ± 235) ml,which was significantly lower than (408 ± 191)ml of the OH group (t =2.199,P ＜ 0.05).The mean postoperative fasting time,postoperative abdominal drainage time and duration of hospital stay of the LH group were (1.9 ±0.6) days,(3.2 ± 1.2) days and (8.9 ± 2.3) days,which were significantly shorter than (3.0 ± 1.6) days,(4.9±1.6)daysand (11.5±2.3)days of the OH group (t=2.149,2.917,2.921,P＜0.05).The levels of alanine aminotransferase (ALT) of the LH group at day 1,3,5 were (228 ± 100)U/L,(143 ± 51)U/L,(85 ±24) U/L,and the levels of aspartate aminotransferase (AST) of the LH group at day 1,3,5 were (196 ± 67)U/L,(90 ± 35) U/L,(46 ± 10) U/L.The levels of ALT of the OH group at day 1,3,5 were (557 ± 401) U/L,(414 ±397)U/L,(217 ± 199)U/L,and the levels of AST of the OH group at day 1,3,5 were (506 ±317)U/L,(178 ± 122) U/L,(71 ± 33) U/L.The time for hepatic function recovery of the LH group was significantly shorter than that of the OH group (t =3.675,3.001,2.073 ; 4.196,2.223,2.272,P ＜ 0.05).All the 30 patients were followed up for 3-15 months.The level of alpha fetoprotein of 1 patient in the LH group was increased at postoperative month 4,and the results of computed tomography showed multiple intrahepatic lesions.The patient was cured by intervention treatment.One patient of the OH group was diagnosed as with tumor recurrence at the resection margins and adjacent hepatic segments.The patient was cured by radiofrequency ablation,with no tumor recurrence.No tumor recurrence or metastasis was observed in the other patients.Conclusion Laparoscopic hepatectomy is a feasible,safe and minimally invasive approach for patients with HCC.

AIM: To explore a new compute tomography (CT) for the localization of intraocular foreign bodies (IOFBs).METHODS: After CT ocular horizontal and ocular axial scan,the foreign bodies on the eyeball wall or retinal surface in 26eyes were localized by means of the combination of CT ocular axial scan and meridian plane reconstruction (new method),ocular horizontal scan and ocular axial scan (conventional method Ⅰ) as well as ocular horizontal scan right angle coordination (conventional method Ⅱ) separately. According to the criteria of indirect ophthalmoscope localization and direct observation during operation, the relative accuracies of corresponding points of the foreign bodies on sclera surface along meridian and latitude were measured.RESULTS: In the 26 cases, the mean relative accuracies of corresponding points of foreign bodies on sclera surface along meridian and latitude were 1.53mm、1.64mm (new method), 1.37mm、1.64mm (conventional method Ⅰ) and 2.02mm、2.55mm (conventional method Ⅱ) respectively.There was no statistical difference between the new method and the conventional method Ⅰ, whereas there was statistical difference between the new methods and the conventional method Ⅱ (along meridian: P＜0.05; along latitude:P＜0.01).CONCLUSION: Compared with the conventional methods,the new method is simpler, more visible and more potential in the clinic.

OBJECTIVE: To establish a model of pancreatic cancer in Spragu-Dawely (SD) rats, and to examine the expression level of KiSS-1mRNA in pancreatic cancer and non-cancerous pancreatic tissues in SD rats. METHODS: Dimethylbenzanthracene (DMBA) was directly implanted into the parenchyma of pancreas in SD rats (Group A), and DMBA combined with trichostatin (TSA) was implanted in the intervention group (Group B). The carcinogenesis of rats executed within 3 - 5 months in Group A and Group B were observed by HE staining and macrography. Meanwhile, the rats in the control (Group C) were executed in 5 months. The expression of KiSS-1mRNA was assayed by in situ hybridization. RESULTS: (1) The incidence of pancreatic cancer in Group A within 3 - 5 months was 48.7% (18/37), including 17 cases of pancreatic ductal adenocarcinoma and 1 case of fibrosarcoma. The incidence of pancreatic cancer in Group B was 33.3% (12/36), including 11 pancreatic ductal adenocarcinoma and 1 fibrosarcoma. The maxial diameter of tumor mass in Group A was higher than that in Group B (P<0.05). (2) The positive rates of KiSS-1 mRNA in pancreatic cancer in Group A and Group B were significantly lower than those in non cancerous pancreatic tissues in Group A and Group B (P<0.01). The positive rates of KiSS-1mRNA in Group A or Group B with ductal adenocarcinoma were significantly lower than those in Group A or Group B without ductal adenocarcinoma (P<0.01). The middle or severely atypical ductal hyperplasia was observed in non-cancerous pancreatic tissues with the negative KiSS-1mRNA. CONCLUSION DMBA directly implanted into the parenchyma of pancreas can obtain an ideal pancreatic cancer model with high incidence in a short time. TSA may have an inhibitive effect on the carcinogenesis and the growth of pancreatic ductal adenocarcinoma in rats, and KiSS-1 may play an important role in inhibiting the invasion and metastasis of pancreatic cancer.
9,10-Dimethyl-1,2-benzanthracene ; Animals ; Carcinoma, Pancreatic Ductal ; chemically induced ; genetics ; pathology ; Female ; Gene Expression Regulation, Neoplastic ; In Situ Hybridization ; Kisspeptins ; Male ; Pancreas ; metabolism ; pathology ; Pancreatic Neoplasms ; chemically induced ; genetics ; pathology ; Proteins ; genetics ; RNA, Messenger ; biosynthesis ; genetics ; Random Allocation ; Rats ; Rats, Sprague-Dawley

Adolescent ; Adult ; Automobile Driving ; China ; Electrocardiography ; Female ; Heart ; physiopathology ; Humans ; Male ; Middle Aged ; Noise, Occupational ; adverse effects ; Occupational Exposure ; adverse effects ; Stress, Psychological ; etiology ; physiopathology ; Vibration ; adverse effects

To establish a cell-based rapid luciferase suppression assay for high-throughput screening (HTS) anti-alphaviruses compounds screening, which could cause viral encephalitis, raise the social issues associated directly with public health and huge economic burden to the society. The Gaussia luciferase assay system was used for HTS model for identifying inhibitors of labeled virus XJ160-GLUC. The decreased 50% GLUC activity inhibition ratio was deemed to be the screening positive index. The reaction system in this model was optimized, and the reliability of the model was evaluated. For HTS model's optimization, cells were infected with XJ160-GLUC at an MOI of 0.025 PFU/cell. The supernatant treated with compounds 48h were collected for GLUC expression detection. In the model, Z' factor was up to 0.71, demonstrating that HTS assay for identifying inhibitors that target all aspects of the viral life cycle of XJ160-GLUC was stable and reliable. After screening 8080 compounds (five-in-one), 341 positive samples were selected, and the positive rate was 4.2% with a cutoff at 50% inhibition. Then 1705 compounds were screened subsequently and the positive rate was 1.1% with obtaining 19 positive compounds. These results will lay the foundation for finding the anti-alphaviruses' drug targets.
Alphavirus ; drug effects ; genetics ; metabolism ; Animals ; Antiviral Agents ; pharmacology ; Drug Evaluation, Preclinical ; methods ; Genes, Reporter ; High-Throughput Screening Assays ; methods ; Luciferases ; genetics ; metabolism