High mobility group protein A (HMGA) plays a critical role in the development of a variety of tumors.It's expression level will abnormally increase with the increase of the malignant degrees of astrocytoma and metastasis potential.Let-7 which is a kind of small RNA endogenous coding negatively regulates HMGA genes as a tumor suppressor.The expression of let-7 reduces while HMGA rises in many kinds of tumors was obversed.Therefore,this finding provides new references for the early diagnosis of tumor and also provides new approaches for therapy of tumor.

OBJECTIVE To establish hospital infection information surveillance system connecting with hospital information system(HIS)in order to achieve real time monitoring,process management and data upload for hospital infection.METHODS According to the national rules of law and the experience of hospital infection management,the software had been developed by using PowerBuilder as program tool and Oracle as database.RESULTS The software could be utilized in the real time monitoring for all inpatients.It had the function of inquiry,statistics and upload.CONCLUSIONS The subsystem connecting with HIS may improve efficiency and effectiveness for preventing and controlling hospital infection.

Irritable bowel syndrome(IBS)is one of the most common functional gastrointestinal disorders,which impacts on patients’quality of life as well as physical and mental health. Studies have shown that visceral hypersensitivity (VHS)is an important pathophysiological factor in the pathogenesis of IBS,and neural regulation plays a key role in the process of VHS. This article reviewed the advances in study on effect of neural regulation pathway on pathogenesis of VHS in IBS.

Objective To evaluate the effects of robot-assisted gait training on the lower limb motor functions of in hemiplegic stroke patients.Methods Forty stroke patients with hemiplegia were randomly divided into a treatment group and a control group.Both groups were treated with routine rehabilitation therapies for 60 min daily in 6 weeks.The patients in the treatment group were given robot-assisted gait training for 30 min daily for 6 weeks.The lower limb part of Fugl-Meyer assessment (FMA) , the Ueda Satoshi standardized hemiplegic function scale and the functional ambulation categories (FAC) were used to evaluate the lower limb motor function before and after the sixweeks of therapies.Results There were no significant difference between the two groups before treatment with regard to all the three assessment measurements.After 6 weeks of treatment, both groups significantly improved in terms of the scores with FMA, the grade of Ueda Satoshi standardized hemiplegic function scale and the FAC (P ＜0.05).But the treatment group had significantly greater improvement than the control group (P ＜ 0.05).Conclusions The robot-assisted gait training can supplement the routine rehabilitation therapies in improving lower limb motor function in stroke patients.

Objective:Performance appraisal of large-scale medical equipment has a significant impact on hospital management. Process equipment performance evaluation of digital is an important part of digital medical&hospital. How to fully utilize the large number of advanced medical equipment resources, how to monitor and manage equipment are focuses that hospital administrators pay much attention to. Methods: The effective performance appraisal of large-scale medical equipment can promote the resource allocation optimization, accurate and scientific management, reasonable and benign application, and then allows large-scale medical equipment fully and effectively applied to clinical practice. Results: Collecting basic data is the basis for performance appraisal of large-scale medical equipment; its instant validity, accuracy, and scientific can enhance the operability and the scientific accuracy of the performance appraisal for large-scale medical equipment. Conclusion:The acquisition of basic data has few specialized research in previous studies, the rules set up for basic data acquisition of large-scale medical equipment in this paper can improve the timeless, accuracy and normalization of the basic data using in the performance appraisal of large-scale medical equipment.

Objective To study the immunomodulatory functions of adult human bone marrow-derived mesenchymal stem cells in vitro.Methods Adult human BMMSCs were separated with Percoll((1.073) g/ml) and cultured in Dulbecco's Modified Eagle's Medium with low glucose containing 10% fetal calf serum.The purity of BMMSCs was identified with the spindle-fibroblastic morphology by microphotograph and the phenotypes were tested by fluorescence-activated cell sorter(FACS).BMMSCs were plated in 96-well plates.After treated with mitomycin,BMMSCs were co-cultured for 72 h with allogeneic lymphocytes isolated from peripheral blood.Effects of MSCs on PHA induced lymphocytes transformation were investigated.The proliferation of lymphocytes was measured by MTT method.Results Peripheral blood lymphocytes proliferation was suppressed by BMMSCs and the inhibition ratio was (60.68%)(P

Objective To know the hygienic condition of different kinds of drinking water plants in Shanxi Province.Methods In 2007,422 water plants and 2 083 secondary water supply units were selected and the information and data that provided by all Sanitation Institute for Health Inspection and Supervision in Shanxi Province were analyzed.Results The hygienic conditions of city's municipal administration water supply systems were the best.Total qualified rate of water quality was 97.67%.The hygienic conditions of rural school's homemade water supply systems were the worst,the qualified rates of all items in the program were the lowest.Most of them had no any analyst and laboratory for water quality test.Only 10.2% of them had water disinfection facilities.Total qualified rate of water quality was 75.32%.In most of water plants,the lack of water quality test facilities and disinfection facilities was one important problem in drinking water safety.In addition,the lack of clean and disinfection in secondary water supply systems was another problem.Conclusion The hygienic conditions of drinking water plans are unsatisfactory and should be improved in Shanxi Province.

[Objective]To investigate the pathogenesis of osteoarthritis by increasing stiffness of subchondral bone to simulate subchondral bone sclerosis to induce the osteoarthritis.[Methods]The proportion between polymethylmethacrylate(PMMA),methylmethacrylate(MMA),hydroxyapatite(HA) and distilled water was adjusted to keep the maximum reaction temperature under 40℃.The composite material PMMA/HA was obtained and compressed on a mechanical material machine to determine its ultimate strength and stiffness,which were compared with those of subchondral bone.The subchondral bone of medial tibial plateau was scraped,where the composite material PMMA /HA was implanted into.Rabbits were sacrificed at 3,6,9 and 12 weeks,respectively.The articular cartilages of the medial tibial plateau were harvested for histological observation.Immunohistochemical analysis was adopted to record the expression and distribution of collagen type Ⅱ and MMP-1 in cartilage at protein level,which were compared with the blank and control groups.Transmission electron microscope was used to examine the ultramicroscopic changes of chondrocytes in blank and 6,12-week-postsurgery groups.[Results]With the time going,the experimental groups gradually presented degeneration,and had increased histological Mankin score.TEM demonstrated degenerative changes of chondrocytes.Collagen type Ⅱ expressed mainly in transition zone and upper deep zone,and MMP-1 expressed predominantly in the superficial and upper intermediate layers of cartilage.Both expressions steadily increased with time passing.[Conclusion]The increased stiffness of subchondral bone induced osteoarthritis in rabbits,which suggests that subcondral bone sclerosis may induce cartilage damage,and that subcondral bone sclerosis is one of the initial pathogenesis of osteoarthritis.

0.05). Conclusions (l)There are obvious expression of HBV antigen in the gastric mucosa of patients with chronic liver disease and cirrhosis . Its role in the pathogenesis of gastric mucosal lesion is the worthful subject to be further studied. (2) No relationship between HBV antigen and Hp antigen expression was observed in this study.

Objective To observe the expression of vascular endothelial growth factor receptor-1 (VEGFR-1) and VEGFR-2 in hypoxic chorioretinal endothelial cells of monkeys (RF/6A),and to evaluate the effect of minocycline.Methods RF/6A was cultured and divided into four groups:control group,hypoxia group,hypoxia and low dose of minocycline group (0.5 μmol/L),hypoxia and medium dose of minocycline group (5 μmol/L),and hypoxia and high dose of minocycline group (50 μmol/L).Real-time reverse transcription-polymerase chain reaction (RT-PCR) and immunohistopathological staining were used to measure the mRNA and protein expression of VEGFR-1 and VEGFR-2,respectively.Results RT-PCR showed that the expression of VEGFR-1 mRNA did not vary significantly between groups (F24 h =0.17,F48 h =1.53,F72 h =2.04; P＞0.05).Compared with hypoxia group,the expression of VEGFR-2 mRNA in all minocycline treated groups were significantly down-regulated (low minocycline,medium minocycline,high minocycline:t=4.69,20.16,17.12; P＜0.001).The immunohistopathological study showed the cells with positive staining of VEGFR-1 can be observed in all groups,and the staining was relatively weak and mainly located in cell membrane and cytoplasm.The optical density value analysis showed that the protein expression of VEGFR-1 did not vary significantly between groups at all time points(F24 h =0.251,F48 h=0.340,F72 h =0.589; P＞0.05).The VEGFR-2 positive staining cells were also observed in all groups,and the staining was relatively high.Brown staining particles of VEGFR-2 were observed in the cell membrane with minor staining particles in cytoplasm.The staining density of VEGFR-2 was significantly higher in hypoxia group than control group.Compared with the hypoxia group,the protein expression of VEGFR 2 in minocycline treated groups was significantly lower (F24 h =19.147,F48 h =14.893,F72 h =11.984; P＜0.05).Conclusion The expression of VEGFR-2 is up-regulated in RF/6A,and minocycline somewhat shows an inhibition effect.