Objective To investigate the effect and significance of minimally invasive removal of intracranial hematoma on the blood-brain barrier in patients with intracerebral hemorrhage (ICH).Methods Clinical data of 20 patients with ICH were randomly selected and received minimally invasive surgery (operative group) and 20 patients with ICH received expectant treatment therapy (expectant treatment group) were analyzed retrospectively,and 20 healthy people were randomly collected for control group.The blood-brain barrier (BBB) and serum myelin basic protein (MBP) concentration were analyzed.Results The BBB index of the iperative group was 0.0075 ± 0.0007,the expectant treatment group was 0.0083 ± 0.0006 and the control group was 0.0068 ± 0.0004.The BBB index in the operative group was significantly lower than that in the expectant treatment group (P ＜ 0.05),and the BBB index in these two groups was significantly higher than that in the control group (P＜ 0.01).The serum MBP concentration in the operative group was (3.29 ± 1.55) μg/L,the expectant treatment group was (6.55 ± 3.78) μg/L,and the control group was (1.12 ± 0.48) μ g/L.The serum MBP concentration in the operative group was significantly lower than that in the expectant treatment group (P ＜ 0.05),and these two groups were significantly higher than the control group (P ＜ 0.01).Conclusions The permeability of BBB in patients with ICH are increased,the BBB index and the serum MBP concentration in patients with ICH are increased,minimally invasive surgery can reduce the lesion of cytotoxicity to BBB and cerebral edema.

The interdisciplinary nature of health economics brings certain difficulty to the teaching of this course, so it is very important to rationally design and use case teaching. According to the characteristics of the course, this paper put forward design ideas from the guiding ideology, selec-tion, categories and forms. This paper argued that teacher should play a leading role and create a good learning environment and grasp four parts of the implementation.

Chitin is one of the most important component in fungal cell wall.Biosynthesis of chitin is a complex processes and needs several chitin synthase isoenzymes.The knowledge of structure,function and regulation of chitin synthases is mainly derived from the study of Saccharomyces cerevisiae.In contrast with the 3 chitin synthases in S.cerevisiae,7 were found in most filamentous fungi.In this review the classification and function of chitin synthases are summerized,and progress in the studies on chitin synthases of filamentous fungi which are of theoretical or medical or agricultural importance,including Aspergillus nidulans,Aspergillus fumigatus and Ustilago maydis are emphasized.Recent ad-vance of research on chitin synthase as antifungal target is also discussed.

Objective　The conditional hierarchical clustering for 1-dimensional(1-d) ordinal data was discussed.Methods　Because the individuals are ordered in 1-d,the conditional matrix was constructed with all elements in the second-diagonal are 1 and the others are 0.Distance matrix of individuals defined by some particular definition.Then the conditional-distance matrix was made for the hierarchical clustering by connecting the conditional matrix and distance matrix.This method was called 1-dimentsional conditional hierarchical clustering.An example was illustrated by this method and a Monte Carol study showed that method was feasible and robust.Results　Compared with the least-squares partition,this method is easy to understand,easy to practice and easy to compute.It also can give us a stable result.Conclusion　Because of the austere theory,the simple thought and the convenient application,it's a good method for the 1-d ordinal data.

Objective To examine the differences in the level of sedation and adverse effects produced by equivalent analgesic doses of remifentanil,sufentanil and fentanyl.Methods Eighty ASA Ⅰ female patients aged 18-39 yr with BMI of 18-25 kg/m2 scheduled for laparoscopic surgery under general anesthesia were randomly divided into 4 groups ( n =20 each):group control (group C) ; group remifentanil ( group R) ; group sufentanil (group S) and group fentanyl (group F).Remifentanil 2 μg/kg,sufentanil 0.2 μg/kg and fentanyl 2 μg/kg in normal saline 10 ml were infused iv over 2 min in groups R,S and F respectively.Depth of sedation was assessed and scored using OAA/S scale (5 =alert,1 =no response to prodding) and wavele index (WLI),before (baseline) and at 2,4,6,8 and 10 min after drug administration.Besides RR,pulse oxygen saturation,BP,HR were also monitored.The incidences of apnea,muscle rigidity,nausea and vomiting,pruritus,vertigo,bradycardia,profuse sweating and skin rash were measured and calculated.Results The 4 groups were comparable with respect to age,BMI and height.The lowest values of OAA/S scores,WLI and RR were significantly lower in groups R,S and F than in group C.Sufentanil produced the deepest sedation among the 3 opioids.Remifentanil produced strongest respiratory depression and nausea and vomiting.Conclusion The equivalent analgesic dose of sufentanil produces deeper sedation than that of remifentanil and fentanyl while remifentanil has the greatest impact on RR.

AIM:Neural stem cells(NSCs)and their supporting factors are related to nerve regeneration after central nerve injury, but there are few evidences for the changes of NSCs and their derived supporting factors.This study explores the change of NSCs and gene expression of stem cell-derived neural stem/progenitor cell supporting factor(SDNSF)in the injured spinal cord tissues of rats,and investigates the relation between the NSCs and expressions of SDNSF. METHODS:The experiment was carried out in the laboratory of Nantong University Neuroscience Institute between September 2005 and March 2006.①A total of 27 SD rats,cleaning grade,were offered by the Animal Experimental Center of Nantong University.Twelve rats used for immunohistochemistry assay were divided into sham operation group and spinal cord injury group,while other 15 rats used for RT-PCR detection were assigned into sham operation group and spinal cord injury group.All the disposals were in agreement with the ethical standard for animals.②The spinal cord contusion model of rats was established according to Allen's falling strike method.Laminectomy was conducted without strike in the sham operation group.The quantity and morphology of NSCs,gila cells and SDNSF-positive cells were observed by immunochemistry to detect expressions of nestin,glial fibrillary acidic protein(GFAP)and SDNSF in the injured spinal cord on days 8 and 16 after injury.The expression of SDNSF mRNA in the injured spinal cord was studied by semi-quantitative RT-PCR on days 4,8,12,16 after injury. RESULTS:①There were nestin-positive cells about central canal of spinal cord in the sham operation group.The nestin-positive cells showed erupted roots,migrated peripherally and proliferation,some GFAP-positive cells emerged and the SDNSF-positive cells were observed,which were similar to neuron on morphology on day 8 after injury.The quantity of nestin-positive cells decreased obviously,there were a number of GFAP-pesitive cells and few SDNSF-positive cells were showed on day 16 after injury.②RT-PCR revealed that SDNSF mRNA expressed in normal rate,and the expression was up-regulated on day 4 after injury,peaked on day 8,and decreased to the normal level on day 16. CONCLUSION:①There are some NSCs about the central canal of spinal cord,which proliferate and soon may differentiate to gila cell after injury in normal rats.②SDNSF is expressed in the normal spinal cord.The expression of SDNSF mRNA in the spinal cord varies with injured time,accompanying the proliferation and differentiation of NSCs. There are intimate relations between NSCs and expression of SDNSF in the repair of spinal cord injury.

Objective To test the diathesis-stress component in the hopelessness theory and demonstrate the mediator effect of hopelessness in depression-generating process. Methods In the 6-month longitudinal study,latent growth curve model(LGM) was used in a sample of 269 Chinese undergraduates on the base of questionnaire investigation. Results The intercept for hopelessness depression had a significant association with the intercept for negative life events (path coefficient =0.48) and depressogenic attributional style (path coefficient=0.26).The slope for hopelessness depression had a significant association with the slope for negative life events (path coefficient=0.73). The complete mediator effect of hopelessness between depressogenic attributional style and the intercept for hopelessness depression was 0.143. The complete mediator effect of hopelessness between the slope for negative life events and the intercept for hopelessness depression was 0.131. The partial mediator effect of hopelessness between the intercept for negative life events and the intercept for hopelessness depression was 0.151.Conclusion Depressogenic attributional style interacted with the occurrence of negative events to predict the occurrence of hopelessness depression. Hopelessness made partial mediator effect on the hopelessness depression-generating process.

Objective To investigate the risk factors of wound complications following the abdominal aorta balloon occlusion in order to provide the basis for the preoperative management and reduce postoperative complications.Methods Two hundred and sixty-one patients with the sacral tumor aged over 18 were selected as subjects who hospitalized at Peking University People's Hospital from January 2006 to December 2012.All subjects were underwent sacral tumor posterior resection operation after occlusion of the distal abdominal aorta.Patients were divided into two groups according to the existence of postoperative wound disorder.The general information of the patients was collected including intra-operative data and post-operative data.SPSS19.0 software was applied for statistic analysis Results Among 261 cases,89 cases were with incision complications,and the incidence of complications was 34.1％ (89/261).There was no significant difference regarding of age,weight,preoperative complications (P ＜ 0.05).Compared with that of no complications group,operation time of wound complications group was longer ((218.27 ± 72.08) min vs.(197.40 ± 53.92) min,P =0.046),and intra-operative bleeding was more ((2368.0 ± 1984.7) ml vs.(1701.6 ±958.8) ml,P =0.000),as well as a longer balloon occlusion time ((78.0 ± 23.8) rain vs.(65.2 ± 17.8) min,P =0.005).Moreover long hospitalized periods was in wound complications group ((47.6 ± 26.3) d,vs.(26.7 ± 9.0) d,P ＜ 0.05).Single factor analysis showed that the factors including operation time,intra-operative bleeding volume,time and times of balloon occlusion balloon occlusion were related to postoperative wound complications.Non conditional logistic regression analysis shows that factors of the balloon occlusion time(OR 1.028,95％ CI 1.012-1.045,P =0.001) and block number(OR 6.266,95％ CI 1.186-33.119,P =0.031) were related to the wound healing following balloon occlusion the abdominal aorta.Conclusion The risk factors of wound complications following the abdominal aorta balloon occlusion included occurrence balloon occlusion time and blocking times.That single balloon occlusion with 60 min reduced wound complication rate.

The paper analyzes problems existed in health certificate issuing management among employees in the service industries in Xi'an and points out the necessity of using informatization means to assist health certificate data management.It proposes the scheme of u-sing the management system based on two-dimensional code technology to manage health certificate information and makes detailed de-scription of design and realization of the system.

Through focusing on widely concerned maternal death incident in Peking University Third Hospital,something can be discovered:for the upper hand in doctor-patient conflicts,they start to have a scramble for discourse power based on information dissemination of social media.On one hand,the evolution of social media builds a bridge for interactions and connections between doctors and patients.It contributes to rebuilding professional authority for doctors and increasing objectivity of information dissemination,On the other hand,information dissemination leads the new scramble for discourse power.It causes some problems:self-reflection decline of doctora,truth diiution about incident and even some moral and ethical risks both patients and doctors.Media tactics of doctors are Proposed to regulate and improve the scramble for discourse power in the social media context from two big aspects,namely establishing matrix platform and reducing propagation loss about social media.