Cerebral ischemia is one of the diseases of the central nervous system, which is harmful to the morphology and function of brain cells due to reduced cerebral blood flow. Increasingly more reports have demonstrated that spinal cord stimulation could augment the cerebral blood flow, which is expected to be a potential method for the treatment of cerebral ischemia. In this article, the research progress and related problems of spinal cord stimulation for the treatment of cerebral ischemia are reviewed.

The strategic cost management of the hospital means setting the cost management of the hospital in the realm of strategic management and analyzing the hospital and its cost behavior and structure from a strategic level so as to create advantages in competition, attain the goal of adapting the hospital to the continuously changing environment and facilitating stralegic management. Strategic cost management is characterized by a protracted, overaU, extensional and innovative nature and methods for it include value chain analysis, strategic positioning analysis, cost agent analysis and many others. Clarifying the goals of strategic cost management, selecting different strategies according to strategic cost information, perfecting the cost management of the hospital and enhancing cost awareness, and giving play to the functional role of economic management personnel are some of the prerequisites for the hospital to implement strategic cost management.

Loop-mediated isothermal amplification (LAMP) is a novel in vitro nucleic acid amplification method conducted under isothermal conditions with the advantages of high specificity, sensitivity, rapidity and easy detection. Since it was established in 2000, it has been widely applied in various fields of analytical science including the diagnosis of a variety of pathogens, identification of embryo sex, detection of genetically modified organisms and cancer gene identification. Additionally, significant progress has been made in the optimization of the LAMP method, such as accelerated reactions, simplified sample processing, the realization of multiplex amplification, and the enhanced specificity of reaction and detection methods. LAMP technology also shows much potential to be adopted as part of point-of-care testing platforms by the micromation, automation and integration with other technologies such as Lab-on-a-Chip and digital nucleic acid amplification. This review summarizes the latest advances in the LAMP technique and its applications in developing point-of-care testing platforms.
Diagnostic Techniques and Procedures ; trends ; Humans ; Nucleic Acid Amplification Techniques ; methods ; Point-of-Care Systems ; trends ; Virus Diseases ; diagnosis ; virology ; Viruses ; genetics ; isolation & purification

Objective To investigate the physiological responses of healthy youth to doing chest compression as a feedback of quality of CPR after their rapid ascent to high altitude and to evaluate the feedback in the intervention effects of CPR.Methods Prospective,single sample,before-after comparison method was used in this study.Fifteen young adults from plains natives were enrolled as trial subjects in this study.All of them received basic life support training course in advance.In Chongqing (259 m above sea level),subjects performed empiric chest compressions on the model body for 4 minutes followed by feedback compressions for 4 minutes after at least 30 minutes rest.Compression depth,rate and other compression quality parameters were measured and recorded at each turn of compressions with an AED PLUS device.Subjects performed empiric compressions based on their knowledge and experiences,and practiced feedback compressions according to the audiovisual guidance of AED PLUS device.Blood pressure,heart rate and SpO2 were taken before and after each turn of compressions.One week after arrival to Lhasa (3658 m above sea level) by flight,all subjects were asked to do the same procedure as did in Chongqing to see their physiological response to.Paired t tests or Wilcoxon matched pair rank test were used for comparisons of measurements before and after trials.Results Systolic pressures,diastolic pressures,heart rates at baseline in Lhasa were significant different from those in Chongqing,including systolic pressure (125.9 ±9.5) mmHg vs.(112.7 ±13.4) mmHg,diastolic pressure (75.3 ±7.7) mmHg vs.(64.2 ±7.3) mmHg,heart rate (86.3 ± 13.0) beat/min vs.(72.7 ± 11.6) beat/min,SpO2 (90.4 ± 1.7)％ vs.(97.8 ±0.9)％,all P ＜ 0.01.In Lhasa,empiric compressions only caused an increase in heart rate (91.1 ± 14.9) beat/min vs.(86.3 ± 13.0) beat/min,P ＜ 0.01.However,feedback compressions resulted in a significant decrease in SpO2 [(88.3 ± 3.4) ％ vs.(90.6 ± 1.9) ％,P ＜ 0.01] as well as change of systolic pressure [(130.9 ± 11.7) mmHg vs.(120.1 ± 11.9) mmHg,P ＜0.05] and heart rate [(87.9 ± 17.5) beat/min vs.(80.9 ± 11.7) beat/min,P ＜0.05].In Lhasa,the compression quality during feedback compressions was closer to guideline recommendation than that during empiric compressions.The median (interquartile range) of composite qualification rate was 43.6％ (55.9％) vs.0.6％ (5.3％) during feedback compressions and empiric compressions respectively,P ＜ 0.01.Conclusions Compression quality decreased significantly among youth after rapid ascent to high altitude.Feedback techniques for CPR could effectively guide the rescuer to improve their CPR quality,but it may be at the expense of more physical consumption.

Objective:To construct adenovirus containing murine MHC class II transactivator (CIITA) mutant gene and to observe expression of this gene mediated by adenovirus as well as function of the expression product in vitro.Methods:The type IV CIITAcDNA gene was cloned from peritoneal macrophage of BALB/c mouse by conventional way of molecular biology, and then it was cloned into expression vector pIRES. CIITA mutant gene was constructed by the way of overlap extension by PCR (OE-PCR), and then it was also cloned into expression vector pIRES. By using of pAdEasy-1 system we acquired the deficient recombination adenovirus Ad-CIITAm, containing CIITA mutant gene, which had the ability of infection and the no-loaded control adenovirus Ad-GFP.Then the two adenoviruses strains were processed for a great deal amplification,purification and titer determining. The Ad-CIITAm and Ad-GFP were infected into HeLa cells and Raji cells.Inducible or constitutive expression of HLA-DR molecule and the following changes were observed by the use of flow cytometry.Results:The murine CIITA gene was cloned successfully and the recombinantant adenovirus Ad-CIITAm containing murine CIITA mutant gene was also constructed successfully. It was proved by flow cytometry that expression of HLA-DR molecules on the surface of HeLa cells and Raji cells infected by Ad-CIITAm were all decreased remarkably in comparison with those of control cells infected by Ad-GFP.Conclusion:This experiment proves that expressed murine CIITA mutant mediated by adenovirus could inhibit the expression of MHC II molecules efficiently.

The paper first analyzes the intrinsic need for cultural integration in hospital regrouping and sums up its content, including the integration of values, management ideas, institutional cultures and institutional frameworks. It then introduces some methods of cultural integration in hospital regrouping, such as running in on the basis of respecting human nature, resolving conflicts on the basis of being mutually tolerant, and merging completely on the basis of optimizing means of integration. The paper points out that success or failure of cultural integration in hospital regrouping depends on the thinking of the leaders. For this reason, it is imperative to enhance integration awareness and improve integration capability.

Objective To map out the binding site of P195,which is the major protein on the surface of P.falciparum merozoites,to human erythrocytes,and offer a basis for designing malaria vaccine to blockade invasion of merozoites into human erythrocytes.Methods Eight proteins derived from P195 were expressed in E.coli,and purified by Ni-chelare affinity chromatography.There after,the eight fragments and rabbit serums immunized by which were added into culture medium of P.fatciparum in vitro respectively.Twenty-four hours later,the invasion of merozoite to erythrocyte was observed.Results The antibodies which were induced by three fragments of P195,M6(Amino Acid,AA384～595),M7(AA 595～897)and M11(AA 1397～1563)could inhibit the invasion of P.falciparum merozoite into human erythrocytes.Especially,one fragment of P195,M6,had the ability to inhibit the invasion of P.falciparum merozoite into human erythrocytes.Conclusion M6,a fragment of P195 on the merozoite of P.falciparum may contain a domain thought to be involved in the recognition of human erythrocyte.The domain can be used as a candidate antigen for a malaria vaccine.

Stroke is characterized by a group of acute cerebral vascular diseases which attack acutely with focal neurological deficits. Residual motor deficits often sojourn after stroke. Cortical stimulation, which is a technique developed many decades ago, has recently re-emerged as a promising method for researchers in their quest to causally probe cortical representations of sensorimotor and cognitive functions and to facilitate the treatment of various neuropsychiatric disorders. The article summarizes the research progress of cortical stimulation in the promotion of motor function recovery after stroke, the method of operation, the possible mechanisms and the prospect.

Aged ; Angioplasty, Balloon, Coronary ; adverse effects ; methods ; Female ; Hematoma ; etiology ; Humans ; Myocardial Infarction ; therapy ; Peritoneal Diseases ; etiology ; Radial Artery

Orinthine decarboxylase (ODC) is a rate-limiting enzyme in polyamine biosynthesis. Abnormal elevation of ODC activity and subsequent polyamine accumulation are intimately associated with the genesis, development and metastasis of cancer. ODC antisense RNA expression plasmid, pCMV/ODCas, was constructed, with which the cells of human lung squamous carcinoma were transfected by the calcium phosphate precipitation method. After G418 selection, two G418 resistant colonies were obtained. The growth rate, the ability to form colony in soft agar, the biosyntheses of DNA, RNA and proteins, and ODC activities of the two antisense transfectants were significantly suppressed in comparison with the parental cell line. It was demonstrated that these changes were associated with the stable integration of exogenous antisense ODC gene in the genomic DNA of transfectants by analysis of Southern blot and PCR.