Objective:To study the environment suitability of multi-parameter patient monitor. Methods: Choosing six different types of multi-parameter patient monitor from different manufactures, we tested six main parameters of the multi-parameter patient monitor when they had gone through the environmental tests, and the test limits come from field environment. Results:Each of the samples was not up to the standards. Conclusion:At present a clear most of the multi-parameter patient monitor in the market are designed and produced for using indoors, which are not suitable for using in field environment. We need to enhance the protection of the multi-parameter patient monitor against field environment, and improve the environment suitability.

Bio-safety problem was emerging as more and more important with the development of biotechnology,and many governments concerned about it.We analyzed the different category of biotechnology related with bio-safety problem,and found out its main influencing factors and safety results.In the course of research and development of biotechnology,misuse,abuse and non-moral use are three main human factors.We concluded that the situation of bio-threat would be more diverse,and also the misuse chance would increase.It will be benefited that public health manager make regulations and legislature with full dimension of bio-safety assessment of different biotechnologies.

Acupuncture Therapy ; Adult ; Back Pain ; therapy ; Chest Pain ; therapy ; Female ; Humans ; Pain, Intractable ; therapy

Objective To evaluate the effect of irbesartan and nifedipine controlled-release tablets on morning blood pressure surge in patients with essential hypertension. Methods Ninety patients with essential hypertension were randomly divided into irbesartan group ( group A, n = 45) and nifedipine group (group B, n =45). Irbesartan tablets 150 mg/d and nifedipine controlled-release tablets 30 mg/d were respectively given in group A and group B for 4 weeks. The levels of diastolic blood pressure (DBP), systolic blood pressure (SBP), mean arterial pressure ( MAP ) and morning blood pressure surge ( MBPS ) before and after treatment were measured by ambulatory blood pressure monitoring. Results The DBP, SBP, MAP and MBPS levels of two groups after treatment for 4 weeks were all decreased (P < 0.01). All the indexes of group B decreased more significant compared to group A (P < 0.05 ). Conclusion To control blood pressure and prevent morning blood pressure surge, nifedipine controlled-release tablets are better than irbesartan.

Objective: To investigate the effects of insulin on the DNA synthesis and cell cycle distribution of human periodontal ligament cells (PDLs). Methods:PDLs were treated with insulin at the doses (U/L) of 0.01～1 000 for 72 h,DNA synthesis of the cells was measured by 3H-TdR incorporation and cell cycle distribution was studied by flow cytometer. Results : Insulin at 1 U/L to 1 000 U/L showed a significant concentration dependent stimulation of 3H thymidine uptake, and the effect of insulin at 100 ～ 1 000 U/L were not statistically different from that at 10 U/L. The percentage of PDL cells in G1 phase during exponential growth was decreased by insulin, while that in S phase and (G2+M) was increased in experimental group. Conclusion: Insulin increases DNA synthesis of PDL cells ,and stimulates the transformation of cells from G1 to S phase.

Objective To understand the cogniton,attitude and behavior of the psychological counseling in college students,and the results should be helpful to mental health promotion programs.Methods 585 college students were recruited by a cluster sampling.A self-designed questionnaire about the psychological consultation was finished by the subjects.All the data were entered a database with Epi Data V3.1 software.Statistical analysis of the data was done on the SPSS software (V13.0).Chi-square test was used to compare the constituent ratio difference among different groups.Results 64.10% students considered the function of counseling was to help person better understand themselves;63.72% of students agreed with that it is very necessary to carry out psychological counseling in college.When they encountered some confusion which beyond their ability to solve,they will at first resort to their friends,parents other than counseling Center in campus.32.58% of students didn’t know the counseling center in their college.Only 8.38% of students ever went to the counseling center.Conclusions Although the majority of students hold positive attitudes and cognition about psychological counseling.However,their behavior was negative.It is contradictory between their cognition and behavior.It is very necessary to explore the deeper reasons and carry out some targeted health education in college students.

Objective To explore the regulatory effects of IFNs on the expression of MMP - 2 andCath - D in osteosarcoma cell and provide experimental evidence for clinical treatment of osteosarcomametastasis. Methods The changes of MMP - 2 and Cath-D were half quantatively measured by Cell ELISA in a human osteosarcoma cell line OS - 732, treated with IFN - ? and IFN -?. Results The resultdemonstrated that both of IFNs were capable of significantly decreasing their expression (P

Objective:To investigate the effects of 17-? estradiol (E2) on the proliferation and metastasis of adenoid cystic carcinoma SAcc83 cells.Methods:The effects of E2 on the proliferation of SAcc83 cells were studied by MTT assay and flow cytometry.The invasion potential of the cells was investigated with chicken embryo heart invasion assay.The in vivo growth and metastasis of SAcc83 cell induced tumor were studied in ovary-resected female nude mice. Results:E2 at 10 -7 ,10 -8 and 10 -9 mol/L promoted the proliferation of SAcc83 cells. E2 at 10 -7 mol/L showed the strongest growth stimulation effects and increased the cell proliferation by 34.4%.With exposure time of 1,2 and 3 d it increased the proliferation index by 33.3%,40.9% and 17.8% respectively;with the exposure time of 12,18 and 24 h,it increased S phase cells in cell cycle by 12.3%,3.3% and 9.7% respectively. Neoplasm developed in all nude mice after subcutaneous transplantation of 106 cells.In the mice treated with 0.2 ml of E2 at 9.55 ?10 -5 mol/L every day for 15 days neoplasm volume doubling time was 61.5 h,that in control mice 76.5 h.In lung metastasis trial, 42 days after tail injection of the cells the metastasis foci in E2 treated mice inreased by 41.2%.Conclusion:E2 may increase the proliferation and metastasis of adenoid cystic carcinoma cells.

Objective To explore the digital morphological and chromatic characteristics of erythrocytes infected with Plasmodium vivax. Methods The images of both normal and P. vivax infected erythrocytes were segmented and measured for morphologic parameters including area, length, breadth, perimeter, roundness, aspect ratio, equivalent circle diameter, as well as chromatic parameters including saturation and color (red, green, blue). A statistic analysis was performed for these parameters. Results Both morphological and chromatic parameters showed high significant differences between the normal and the infected erythrocytes, and high significant differences between the normal and the erythrocytes infected with different stages of P. vivax. Conclusion The differences mentioned above could be used as the basis for automatic identification of P.vivax in thin peripheral blood smears.

Objective To evaluate the protective effect by inhibiting nuclear factor-kappa B (NF-?B) by N-acetyl-L-cysteine(NAC) on donor rat lung. Methods 24 SD rats were randomly divided into two groups, the control group and the experiment group. The harvested lung blocks were flushed with and stored in the low-potassium-dextran (LPD) solution in control group, but in the experiment group, LPD solution containing NAC was used. The lungs were preserved at 4℃ for 16 hours in both groups. Isolated rat lung reperfusion models were established and the donor lungs were perfused for 1 hour. PaO_2 and PAwP were measured at every 15 min intervals during reperfusion. After reperfusion, the lung tissue wet-to-dry (W/D) ratio and myeloperoxidase(MPO) activity were obtained. The protein and mRNA expressions of intercellular adhesion molecule-1(ICAM-1) and nuclear factor-kappa B(NF-?B) were also observed by using immunohistochemistry and semi-quantitative RT-PCR at the end of reperfusion. Results After reperfusion for 60 minutes, in experiment group, PaO_2 drop in and increase PAwP lower than in control group (P