Objective To evaluate the clinical characteristics,pathology,treatment and prognosis of gastrointestinal stromal tumors.Methods A retrospective analysis was made on clinical data of 469 patients with gastrointestinal stromal tumors (GIST) admitted between January 2010 and August 2016.Results There were 231 males and 238 females,the median age was 57 years old.The tumor was located in the esophagus in 6 cases (1.3％),in the stomach in 295 cases (62.9％),in the duodenum in 23 cases (4.9％),in the small intestine in 69 cases(14.7％),in the colorectum in 26 cases (5.5％).There were altogether 50 cases (10.6％) in this group with a final diagnosis of extra-gastrointestinal stromal tumors.Tumor invasion depth,risk of ulcer caused bleeding and NIH classification varied with its locations (all P ＜ 0.05).Conclusions The clinical characteristics of gastrointestinal stromal tumors can be used to preliminarily predict its malignant degree.Surgical resection is the treatment of choice,and postoperative recurrence or metastases of gastrointestinal stromal tumors can be treated by imatinib.

OBJECTIVE To investigate the clinical feature of nosocomial infection and the type of pathogens in general hospital, and provide the scientific theory basis in order to prevent and control the nosocomial infection. METHODS An analysis was made on the basis of the survey, the data came from hospitalized cases from 2000 to 2006. RESULTS Their prevalence rate was 3.8%. The highest infected rate was in ICU (16.9%). The main infection site was respiratory tract. Among pathogens isolated from nosocomial infection cases, 45.65% were Gram-negatives, 31.9% were fungi, and 20.58% were Gram-positives. The formation rate of the Enterococcus gradually increasesd from year to year. CONCLUSIONS There are many effective actions to reduce the nosocomial infection, such as strengthening the medical training, carrying out the aseptic technology strictly, reducing the invasive operation, raising the executable rate of hand hygiene, and using the antibacterial drug reasonably.

OBJECTIVE To evaluate the clinical application of the two surgical hand antisepsis methods on hand sterilizing effect. METHODS Totally 123 medical staff of operating theater were divided into Avagard surgical washing liquid (60) and orthodox surgical hand antisepsis (63) groups at random. The samples were derived from fingers and cultured before,just after and 2h after sterilization. RESULTS The colony counts were 4.64?4.87,0.05?0.16 and 0.02?0.10 CFU/cm2,respectively in avagard surgical washing liquid group;vs 4.10?4.03,0.08?0.26 and 0.49?1.31 CFU/cm2,respectively,in orthodox surgical hand antisepsis group. There were statistical differences of the cultures of the two groups (P

Objective To evaluate the diagnostic value of Human Epididymal Protein 4(HE4) and HE4/Cancer Antigen 125 (CA125) parallel detection for ovarian cancer by meta-analysis.Methods The databases,such as Pubmed,Embase and China National Knowledge Infrastructure (CNKI),were employed to search for the studies related to diagnostic value of HE4 and HE4/CA125 parallel detection for ovarian cancer.The screening,data extraction and quality assessment were conducted in accordance with the inclusion and exclusion criteria by two reviewers independently.The software Meta-disc 1.4 was used to perform meta-analysis and draw the forest plots and the Summary Receiver Operating Characteristic (SROC) curves.The AUCs of HE4,HE4/CA125 parallel detection were detected by Z test.The Egger's regression test was applied to evaluate the publication bias by Stata11.0.Results A total of 14 studies with benign control and/or healthy control were included.In the studies with healthy control.The AUCs of HE4,HE4/CA125 parallel detection were 0.9502 ± 0.0137 and 0.9588 ± 0.0113 respectively,but there was no significant difference between them (Z =0.484,P ＞ 0.05) ;In the studies with benign control.The value of cutoff was the most important cause of heterogeneity.The AUCs of HE4,HE4/CA125 parallel detection were 0.9153 ± 0.0095 and 0.9323 ± 0.0082 respectively,but with no significant difference (Z =1.350,P ＞ 0.05).In the subgroup with cut-off value divided by 150 pmoL/L,the AUCs of HE4,HE4/CA125 parallel detection were 0.9032±0.0174 and 0.9267 ±0.0176 respectively,but there was no significant difference between them (Z =0.950,P ＞ 0.05).Conclusions Both HE4 and HE4/CA125 parallel detection had meaningful values for the diagnosis of ovarian cancer.The detection of HE4 had a higher specificity,while the HE4/CA125 parallel detection had a higher sensitivity.But there was no statistical difference between them in diagnosis value of ovarian cancer.

Objective To study the risk values of glycosylated hemoglobin ( HbA1c) screening patients with diabetes mellitus(DM) and pre-diabetes(PreD) in different age and sex.Methods HbA1c results from10 840 in Taizhou Hospital in 2012 were retrospectively collected , and CHAID analysis of decision tree was used in preliminary hierarchy .Age was further divided into five groups according to the preliminary results , then one-way ANOVA and linear regression were utilized to determine the differences between age groups and the prediction intervals (PI) of HbA1c,respectively.The upper limit value of 95%PI of HbA1c was set as diabetes risk values ( DRVs).By comparison of the sensitivity of DM patients screening by DRVs in 1 889 cases whose HbA1c were between 6.0%to 6.5%and the upper limit value of traditional HbA1c reference intervals to verify the screening value ofDRVs .Then the DRVs of HbA1c were utilized to screen DM in the population whose HbA 1c is were 6.0%-6.5% in 2008,and followed their re-examination records toverify the screening value of the DRVs toin PreD patients. Results (1) On the basis of the initially root of decisiontree by age , the populationwas divided into 9 groups ( P =0.000, F =231.462).By calculatingthe 95% confidence interval(CI) of each group and merging reasonably,it was finally divided into 5 groups:20-30years,31-40years,41-50years,51-60years and >60years (F=434.342, P=0.000).(2)Using the method of linear regression , the 95% PI of HbA1c of the 5 groups showed as following:20-30 years, males 4.6%-5.9%, females 4.6%-5.9%.31-40 years, males 4.8%-6.0%, females 4.7%-6.0%.41-50 years, males 4.9%-6.2%, females 4.8%-6.1%.51-60 years, males 5.0%-6.3%, females 4.9%-6.2%.>60 years, males 5.1%-6.4%, females 5.0%-6.3%.The traditional HbA1c reference interval was4.8%-6.3%.(3) The screening sensitivity of DM by the upper limit value of traditional HbA1c reference interval and DRVs in group which HbA1c was between 6.0%-6.5% were 34.5%and 48.1%,respectively.(4) Reviewing of the group with HbA1c between 6.0%-6.5% and not diagnosed as DM in 2008, 49 hadnegative DM screening results by using the upper limit value of traditional HbA1c reference interval but were positive in our setting DRVs , and 13 have developed to DM now , which accounted for 26.5%.Conclusion HbA1c DRVs need to be set hierarchically between different age and sex groups as a supplement to the traditional reference interval , which has a great significance for the diagnosis and treatment of DM and also forthe screening and intervention of PreD patients.

Finite element analysis can be used to study the change of the structure and the interior field intensity of human and animal body organs and tissues with simulation experiment. We in our research used finite element analysis software to analyze and solve the spinal cord surface potential problems, and investigated the transmission features of signals generated by interneurons in spinal nerves which were related with body motion control and sensory processing. A three dimensional model of electrical source in rat spinal cord was built, and the influence on potential distribution on spinal cord surface caused by position changes of electrical source in transverse direction and dorsoventral direction were analyzed and calculated. We obtained the potential distribution curves of spinal cord surface and found that the potential distribution on spinal cord surface showed monotone. In addition, potentials of some registration points were smaller than that of registration points around.
Action Potentials ; Animals ; Computer Simulation ; Finite Element Analysis ; Humans ; Interneurons ; physiology ; Models, Anatomic ; Rats ; Spinal Cord ; physiology

The "Cancer Toxin" pathogenesis theory is an innovate theoretical system for cancer pathogenesis of Chinese Medicine, which was built on the basis of "Cancer Toxin" concept initially raised by Professor ZHOU Zhong-ying. The mechanism of the transformation from inflammation to carcinoma has become one of hot-points in the field of cancer research at home and abroad in recent years. We focused on discussing the relevance of the "Cancer Toxin" pathogenesis theory with the transformation mechanism from inflammation to cancer, provided evidence for using "Cancer Toxin" pathogenesis theory in intervening transformation from inflammation to cancer, hoping to guide for Chinese medical prevention and treatment of tumor.
Biomedical Research ; Carcinoma ; physiopathology ; Humans ; Inflammation ; physiopathology ; Medicine, Chinese Traditional ; Neoplasms ; physiopathology

Objective To construct pSUPER-SVV vector and obtain its expression in HeLa cells,in order to interfere the expression of survivin.Methods Oligonucleotide sequences specific for survivin were designed for RNA interference(RNAi),after annealed they were ligated to pSUPER.basic vector.After sequencing,the vector of pSUPER-SVV was transfected into HeLa cells by LipofectAmine.The expression of survivin was detected by RT-PCR and FCM.Results The RNAi expression vector of survivin was constructed successfully,which depressed the expression of survivin efficiently.Survivin was significantly depressed on the level of mRNA in HeLa cells compared with the control groups(P

Objective To explore the pathogenesis of invasive pituitary adenomas,and to improve the effect of clinical treatment.Methods 15 pairs of invasive pituitary adenoma tissues and noninvasive pituitary adenoma tissues were selected from 114 specimens collected and the Id1 gene expression and Id1 protein expression in invasive pituitary adenoma tissues and noninvasive pituitary adenoma tissues were tested by quantitative RT-PCR,Western blot and immunohistochemical methods;Then small interfering RNA (siRNA) was used to interfer Id1 gene expression in NQ-04 cells.Results The Id1 gene expression in invasive pituitary adenoma tissues was significantly higher than that in noninvasive pituitary adenoma tissues(n =15,t =2.725,P =0.013) ;The migration of pituitary adenoma cells interfered was significantly reduced.Conclusion The invasive pituitary adenoma tissues has high level of Id1 gene expression,which may be correlated with its invasion.And Id1 is expected to become a biological marker of diagnosis and determination in the prognosis of pituitary adenoma.

Objective To observe the characteristics of glycemic excursion and to evaluate the therapeutic effects on blood glucose in new dignosed type 2 diabetes mellitus after being given continuous subcutaneous insulin infusion(CS Ⅱ).Methods Thirty-eight new dignosed type 2 diabetes mellitus patients were randomly divided into group CS Ⅱ(n=18) and group many-times subcutaneous insulin infusion(MS Ⅱ,n=20).The blood glucose lasted for three days were monitored by continuous glucose monitoring system(CGMS).Results The abnormal glucose metabolism in two groups were markedly released after two weeks treatment,the mean blood glycemic(MBG),mean amphtude of glycemic excursions(MAGE),means of daily differences(MODD) and the percentage of blood glucose beyond 7.8 mmol/L and 11.1 mmol/L after therapy were all significantly decreased compared with those of before therapy (P＜0.001);the average levels of blood glucose before and after diet were decreased obviously as well(P＜0.05,P＜0.01).All index in group CS Ⅱ were lower than that of group MS Ⅱ (P＜0.01,P＜0.001).Conclusion Continuous glucose monitoring system can assess the changes characteristics of blood glucose effectively,continuous subcutaneous insulin infusion was an effective means of controlling blood glucose.