Objective To investigate the significance of human cyomeg Movirus(HCMV)pp65 IgG antibody avidity index(AI)for the clinical diagnosis of HCMV primary infection through the experimental model of HCMV primaly infection in BALB/c mice.Methods 6～8 weeks,female,specific-pathogen-free BALB/c mice were divided into 5 groups.6 mice in each group. And he mice were injected with 2×106 PFU/m1,2×105 PFU/mi,2×104 PFU/ml,2×103 PFU/ml and 2×102 PFU/ml of HCMV intraperitoneally respectively. Another 6 mice were injected intraperitoneally with the maximum dose of HCMV kept at 56℃ for 30 min as inactivated virus group.And HF negative control group was established at same time. All the mice ere sacrificed to obtain brain and lung tissues for the following experiments after 1 montll.(1)Tissue samples obtained from mice were inoculated in human embryo fibroblasts(HF)monolayers after routine treatment for virus isolation.HCMV specific eytopathie effect(CPE) was observed bv inverted phase-contrast microscopy.HCMV UL83 DNA in the ultures as tested by PCR and pp65 antigen was detected by indirect immunofluorescence.(2)Extracted mRNA from tissue samples and HCMV pp67 mRNA were analyzed by reverse transcriptase PCR(RT-PcR).(3)Immunoglobulin M(IgM)antibody and immunoglobulin G(1gG)antibody avidity Was investigated for their usefulness in distinguishing primary genital HCMV infections rom nonprimary infections with ELISA kit using truncated pp65 protein.ResultsHCMV can be isolated in the tissues from the mice injected with 2×106 PFU/ml and 2×105 PFU/m1.RT- PCR and ELISA showed positive results in the same groups.The infective rates were 100%.The analysis of the low doses groups,inactivated group and HF negative ontrol group all showed negative results.Conclusions BALB/c mice can be infected with HCMV and appeared as primary infection after1 month.Determination of HCMV pp65 IgM and HCMV p065 IgG-AI by ELISA incorporated with virus isolation and RT-PCR are helpful for distinguishing primary infections from nonpfimary infections.The detection of HCMV p65 IgM and HCMV pp65 IgG-AI by ELISA utilizing recombinant protein pp5 as antigens can be used for preliminary screening.

The first step of bacilli culture is inoculation bacteria on culture medium. Designing a device to increase efficiency of inoculation is significative. The new device is controlled by SCM. The stepper motor can drive the culture medium rotating, accelerating, decelerating, overturn and suspending. The device is high practicability and efficient, let inoculation easy for operator.
Bacteriological Techniques ; instrumentation ; Equipment Design ; Software Design

On the grounds of multicultural coexistence system of Chinese University, this paper propose the basic elements management culture, namely integrity management, innovation management, intelligence management, fine management, system management, which referred to as primitive management culture. This paper also describes the meaning, and explores the function, values and application of primitive management culture. This paper advocates the development of the primitive management culture, and learns primitive management at the same time. We aim to cultivate talent with primitive management cultural qualities, and to achieve the dream of culture encouraged strong school, strong and prosperity nation with the production activities, social and natural science learning and practice.

This paper proposed a real-time monitoring system for running status of medical monitors based on the internet of things. In the aspect of hardware, a solution of ZigBee networks plus 470 MHz networks is proposed. In the aspect of software, graphical display of monitoring interface and real-time equipment failure alarm is implemented. The system has the function of remote equipment failure detection and wireless localization, which provides a practical and effective method for medical equipment management.
Computer Systems ; Equipment Design ; Internet ; Monitoring, Physiologic ; instrumentation ; Telemetry ; instrumentation

Objective To research the mechanism or pathway through which Substance P(SP) inhibits r-aminobutyric acid(GABA) activated currents in bullfrog dorsal root ganglion(DRG) neurons.Method The experiment was conducted on freshly isolated bullfrog dorsal root ganglion neurons using a whole-cell patch-clamp technique.Results SP could caused a slow inward current when SP was applied to DRG neurons;SP could inhibits GABA-activated currents;The inhibition could be reduced largely when protein kinase C(PKC) inhibiter,1-(5-isoquinolinesulphorry)-2-methylpiperazine(H-7), was dialyzed in cell body.Conclusion The SP ton inhibit GABA-activated currents through protein kinase C.

Background Diclofenac sodium eye drops,pranoprofen eye drops and bromfenac sodium hydrate eye drops are three clinical commonly used nonsteroidal anti-inflammatory drugs(NSAIDs).The variation of cytoxicity among these drugs and whether the cytoxicity is related to the supplements are also unknown.Objective This study was to compare the cytotoxicity of three non-steroidal anti-inflammatory eye drops and their active components with cultured human corneal epithelial cells (HCECs) in vitro,and to discuss toxic origins of these drugs.Methods HCECs were cultured in different drugs with the final concentration of 0.10％,0.05％,0.02％ and 0.01％.Cell proliferation was evaluated by MTT assay.Then,0.002％ eye drops (1∶50) was added,and the migration and damage of the cells were deceted by transwell migration assay and lactate dehydrogenase (LDH) assay.Results The cytotoxicity of three nonsteroidal anti-inflammatory eye drops on HCECs was concentration-dependent (all at P=0.00).Diclofenac sodium eye drops showed the most dominant effects on the proliferation,migration and damage of HCECs among the three eye drops,while bromfenac sodium eye drops showed the least effect on the cell damage (proliferation:Fdrug =20.25,P=0.00;migration:F =103.43,P =0.00;damage:Fdrug =164.16,P =0.00).Compared with the eye drops,their active components showed less cytoxicity.Pranoprofen appeared the least effects on the proliferation,migration and damage of HCECs (proliferation:Fdrug =332.27,P =0.00;migration:F =332.27,P =0.00;damage:Fdrug=154.83,P=0.00).Conclusions The cytotoxicity ofdiclofenac sodium eye drops is more obvious than that of pranoprofen eye drops or bromfenac sodium hydrate eye drops.The cytotoxicity of the three eye drops originates from their supplements or the interaction between the supplements and active components.

Objective To investigate the effects of human cytomegalovirus ( HCMV) persistent in-fection on the central nervous system of BALB/c mice.Methods Thirty specific-pathogen-free mice of 6-8 weeks old were randomly divided into three groups including HCMV infected group , inactivated HCMV group and human embryo fibroblast ( HF) control group .Each mouse in the three groups was intraperitoneally inoc-ulated with 1.8 ×107 PFU of HCMV, 1.8 ×107 PFU inactivated HCMV and 1 ×105 HF cells, respectively. All mice were housed in microisolator cages for three months and their behavior and body weight were ob -served.Then three tests including autonomic activities test , Morris Water Maze and step-down passive avoid-ance task were performed on all mice to evaluate the changes of their behavior .Cerebral cortex tissues were collected from all mice to detect HCMV and to conduct polymerase chain reaction (PCR) analysis.Brain tis-sues were stained by HE method to evaluate the pathological damages .Transmission electron microscope was used to observe the ultrastructure of neuron cells and the existence of virus particles .Results (1) The body weight of mice showed no significant differences among the three groups ( P>0 .05 ) .( 2 ) The frequency of autonomic activities were decreases in HCMV infected group in comparison with other two groups , but there was no significant differences among the three groups (P>0.05).(3)The place navigation test demonstra-ted that the escape latency of mice from HCMV infected group as well as HF group showed significant differ -ence after training for different periods of time (P<0.05).The escape latency of mice with HCMV infection was much longer than that of other two control groups (P<0.05), but the differences between two control groups were not significant (P>0.05).Compared with the mice in two control groups , the mice in HCMV infected group showed a lower frequency of crossing the quadrant where the platform had been located on pre -vious trials in the probe trial test (P<0.05).Moreover, the time of first crossings was also longer than that of mice from two control groups (P<0.05).(4)In the learning phase the mice from HCMV infected group showed a high frequency of mistakes in comparison with that from two control groups in step -down passive avoidance task (P<0.05).After 24 hours, the frequency of mistakes was decreased in each group , and the differences were significant (P<0.05).The latency was very shorter in mice from HCMV infected group than that observed in two control groups (P<0.05).(5)The HCMV infection was identified in six mice from HCMV infected group .And the positive HCMV UL83 gene could be only detected in HCMV infected group as indicated by PCR analysis .(6)The pathological changes including cell swelling , loosen cytoplasm, decreased cell layers and vacuolization were observed in the cerebral cortex and hippocampus of mice from HCMV infected group .HCMV-specific intracytoplasmic inclusion bodies and herpes virus like particles were detected by using transmission electron microscope .No obvious abnormalities were observed in two control groups.Conclusion HCMV persistent infection could damage the central nervous system of mice .The au-tonomic activities of mice with HCMV persistent infection were not affected , but the learning and memory ca-pability of them were damaged at some extent .

Molecular Imaging could understanding disease or state the disease processes from the physiology and the biochemistry level. Not only it can improve the capability of disease diagnosis, but also it can discover the disease from molecule level. It's the real method of early diagnosis and preemptive therapy. Because of it's development and capacity, molecular imaging will be the development direction of Medical imageology, and lead to the biomedical model revolution.
Diagnostic Imaging ; Molecular Imaging

Objective To observe the level of dopamine and its receptor in striatum from conditioned place preference (CPP) of rats administrated of morphine.And explore the mechanism of opioid-psychic dependence involving the levels of neurotransmitter and receptor.Methods CPP model was validated in morphine-dependence rats for 10 days.Striatum samples were harvested from two separate groups involving the saline group and morphine treated group (n =10 per experiment).The DA contents in striatum were detected in rats with colorimetry.Immunohistochemistry was applied to detect the differential expression levels of dopamine receptor 2 (DRD2)in samples.Results Compared with the saline group,higher content of neurotransmitter dopamine was observed in the morphine dependent rats (7.63 ±0.98 vs 5.23 ± 1.01,P＜0.01),while the expression level of DRD2 was down regulated (0.06 ± 0.02 vs 0.08 ± 0.02,P ＜ 0.01).Conclusion The increased expression of neurotransmitter dopamine and the decreased of DRD2 may be contributed to morphine-induced psychological dependence in morphine dependent rats.

Objective To explore TRAIL expression in patients with primary immune thrombocytopenia (ITP)and its role in the pathogenesis.Methods Peripheral Blood Mononuclear Cells (PBMCs)from twenty-eight patients with ITP and thirty healthy controls were obtained.TRAIL expression was determined using Real-time Quantitative Polymerase Chain Reaction (RT-PCR).Serum TNF-α,IFN-γ,IL-4 and IL-10 were detected using ELISA.Associations between TRAIL expression and clinical parameters were assessed.Results Compared to healthy controls,TRAIL expression was significantly increased in PBMC from patients with ITP (2.80±0.43 vs 1.00±0.24,t=19.72,P<0.001).Compared to the healthy controls,ex-pression of IFN-γand TNF-αfrom ITP patients were increased (52.43±11.04 pg/ml vs 23.26±8.15 pg/ml;69.14± 10.89 pg/ml vs 36.14±13.17 pg/ml,t=10.36~11.50,P<0.001)and expression of IL-10 were decreased (11.18±6.13 pg/ml vs 33.28±9.85 pg/ml,t=10.17,P<0.001)and there was no significant difference in IL-4 expression (35.75± 12.52 pg/ml vs 40.16±14.26 pg/ml,t=1.25,P>0.05).Furthermore,TRAIL expression was positively correlated with serum IFN-γ,TNF-αlevel (r=0.432,0.541,P<0.05),and negatively correlated with IL-10 and PLT (r=-0.424,-0.553,P<0.05).Conclusion Rur results suggest that TRAIL may be involved in the pathogenesis of ITP.