1.The status and functions of infection control in hospital construct
Wanyu ZHANG ; Xiangyi YIN ; Guoxiu ZHANG ; Yan DING
Journal of Medical Postgraduates 2003;0(11):-
This article mainly discussed that infection control is an important part of hospital management and plays an important role in medical quality management by reviewing and summarizing the development of the department of hospital infection control in nanjing general hospital.It put forward the goal and plan of the subject build in the future.
2.Hospital infection control for laminar flow operation room
Guoxiu ZHANG ; Wanyu ZHANG ; Xiangyi YIN ; Yan DING
Journal of Medical Postgraduates 2003;0(12):-
To discuss hospital infection control for laminar flow operation room. Ten measures of hospital infection control have been formulated for laminar flow operation room based on the danger factors of the surgery incision infection and the principle of the air purify process and filtration setting. A set of management system and detailed rules have been founded for the use of laminar flow operation room, to strengthen the notion that the patients are the all. It has met the requirement for the use of air-clean technique and setting, and guaranteed air purity.
3.Study on germicidal efficacy and clinical use of orthophthalal dhyde disinfectant
Xiangyi YIN ; Wanyu ZHANG ; Guoxiu ZHANG ; Yan DING
Journal of Medical Postgraduates 2003;0(03):-
Objective: In order to kuow the germicidal efficacy of orthophthalaldhyde. Methods: Carrier quantitative germicidal test and clinical use study. Results: the showed that 23℃,the average killing ratc after exposure to the stock solution of orthophthalaldhyde disinfectant for 90 min was 100% of Bacillus Subtitis Var.niger on carriers and for 10 min contact time could destroy completely the antigenicity of serum HBsAg,and for 5 min was 100% of bacteria. Incontinuous use for 10 days ,immersion in for 14 days it was no corrosion of carben steel and stainless steel apparatus, and no irritative to skin and mucous membrane. Conclusion: Orthophthalaldhyde has good germicidal efficacy and belongs actually no corrosion and no irritative disinfectant.
4.Monitoring and analysis of air-microorganism content in important hospital departments
Xiangyi YIN ; Wanyu ZHANG ; Yan DING ; Guoxiu ZHANG
Journal of Medical Postgraduates 2003;0(11):-
Objective: To inspect dynamically the air-microorganism in important hospital departments. Methods: Plate sedimentation was used for examination. Results: The average rate of reaching standard is 93.01% for the important hospital departments from 2001 to 2004.The rates of reaching standard for region Ⅰ,Ⅱ and Ⅲof the hospital were 76.89%,90.14% and 97.03%,respectively. Conclusion: The content of air-microorganism is affected by personnel flow,airy condition,season and disinfection measure.
5.Measures of infection control against bird flu spreading
Wanyu ZHANG ; Yan DING ; Xiangyi YIN ; Guoxiu ZHANG
Journal of Medical Postgraduates 2003;0(09):-
To prevent the spread of bird flu to human,we applied four effective means of infection control: concept introduction,light-accelerant method,tracking administration,and draft of coping measures,which displayed the characteristics of infection control in scientific and affectionate ways,and enhanced the level of public health service.
6.Cleansing effect of light catalyst compound atomization in the hospital environment
Xiangyi YIN ; Wanyu ZHANG ; Yan DING ; Guoxiu ZHANG
Journal of Medical Postgraduates 2004;0(01):-
Objective:To check the cleansing effect of light catalyst compound atomization in the hospital environment. Methods: Bacterium quantities were compared in the rooms treated with light catalyst compound atomization or routine cleansing. Results: In the room treated with light catalyst compound atomization,the rate of air bacterium reduction was 90.83% at 1 h,53.61% at 24 h,and 55.82% in average from 1 week to 12 weeks.Bacterium on object surfaces were kept lower for 8 weeks in the light catalyst compound sprayed room than in the routinely cleansed room.Conclusion:The light catalyst compound atomization can chronically cleanse the hospital environment without pollution.
7.Evaluation of the chemiluminescence immunoassay for diagnosis of syphilis in the clinical screening test
Xiaohong ZHANG ; Qian ZHANG ; Xuehong ZHOU ; Hongyan GENG ; Xiangyi LIU
Chinese Journal of Laboratory Medicine 2014;(10):780-783
Objective To evaluate the specificity of Architect chemiluminescence immunoassay ( CLIA) for diagnosis of syphilis in the clinical screening test.Methods 65 774 syphilis specific antibody results in the Beijing Tongren Hospital were retrospectively analyzed.In this study, Architect CLIA for diagnosis of syphilis was used as a screening test for the pre-operative patients from August 2011 to July 2012.All the repeatedly reactive samples were tested by the tolulized red unheated serum test ( TRUST) and Treponema pallidum particle agglutination ( TPPA) assay.Samples with with discordant results were verified by western blot ( WB) Finally, all the results were statistically analyzed by software SPSS 17.0.Results Among 65 774 samples, 940 (1.43%) were found to be repeatedly reactive using the Architect CLIA.Of these sera, 330 ( 35.11%) were reactive and 610 ( 64.89%) were nonreactive by TRUST.Because a TRUST titer of 1:1was not always sufficient to confirm a TPPA reactive result, all the samples with CLIA reactive results were finally performed by TPPA assays.The results showed that 843 ( 89.68%) were positive and 97 (10.32%) were negative.After arbitrated by the WB, out of 97 TPPA negative sera, 18 (18.56%) were positive;7(7.22%) were indeterminate and 72(74.23%) were negative.Conclusions The specificity of Architect CLIA for diagnosis of syphilis was 99.89%.The results showed that confirmation by TPPA on sera with screening test for syphilis by Architect CLIA effectively decreased the false-positive results and could be suitable for a routine supplementary for syphilis.However, if necessary, the WB should be further utilized.
8.Research progress in the study of brain microdialysis in glioma.
Lin LIU ; Xiangyi ZHANG ; Yao XIAO ; Xingguo ZHANG
Acta Pharmaceutica Sinica 2014;49(4):450-6
Glioma is the most common form of brain cancer. Despite recent advances in the treatment of solid tumors, there are few effective treatments for malignant gliomas due to its infiltrative nature. It has important significance to improve the treatment of glioma through in-depth understanding the intracerebral metabolic characteristics and pharmacokinetics of chemotherapeutics. Brain microdialysis (B-MD), an effective method to monitor central nervous system anticancer drug disposition, conditions of drugs through the blood-brain barrier, basic pathophysiologic metabolism, bioactive compounds and the changes of neurotransmitter in brain, provides the unique opportunity to allow the simultaneous determination of unbound concentrations of drugs in several tissues, and directly measure gliomas biochemistry continuously. B-MD has been able to monitor the change of brain drugs, metabolites and neurotransmitters, dynamic analysis of the drug concentration and pharmacological effect after administration, pharmacodynamic interaction between drugs, receptor mechanism of drug transport, as well as feedback information of internal environment. B-MD is expected to provide reference for clinical individual chemotherapy of glioma, but also provide powerful tools for the evaluation of new anticancer drugs in vivo. In this review, a comprehensive overview of B-MD for studies on glioma is elucidated with special emphasis on its application to neurochemistry and pharmacokinetic studies.
9.In vitro antibiotic effect of the leaching solution of astragalus on cariogenic bacteria
Jinting ZHANG ; Ni DENG ; Tuanjie CHE ; Yanli KANG ; Xiangyi HE
Journal of Practical Stomatology 2009;25(4):588-590
Astragalus produced in Gansu were chosen as the raw material to leachate. Studied the antibiotic effects of the leaching solution on the cariogenic bacteria and compared with the imported bacteriostatic product MI. Streptococcus mutans and Lactobacilli were cultured in the medium for 24 h. The PH and A600 values were measured. Statistical analysis was conducted by using SPSS 13.0. The leaching solution of astragalus has the same inhibitory effects on the growth and acid production of streptococcus mutans and lactobacilli as MI.
10.Differentiation of muscle-derived stem cells into neuron-like cells induced by ciliary neurotrophic factor and Compound Salvia Miltiorrhiza Injection in vitro
Xiangyi ZENG ; Wei WANG ; Liang SUN ; Li ZHANG ; Lingda ZENG
Chinese Journal of Tissue Engineering Research 2009;13(27):5336-5340
BACKGROUND: The low survival rate of neuron cells is one of the main mechanisms of stem cell allograft, which might lead to the failure of allograft. Nuclear factor-KB (NF-kB) is one of main transcription factors for cell signaling transduction and participates in call proliferation and differentiation.OBJECTIVE: To study the differentiation of muscle-derived stem cells (MDSCs) into neuron-like cells induced by ciliary neurotrophic factor (CNTF) and Compound Salvia Miltiorrhiza Injection in vitro, and the expression of NF- kB.DESIGN, TIME AND SETTING: The experiment at cell molecular level was performed at the Oral Science Laboratory of the Second Affiliated Hospital of Liaoning Medical College from March to May 2008.MATERIALS: A total of 10 Sprague Dawley neonatal rats aged 7 days were supplied by Experimental Animal Center, Liaoning Medical University. CNTF (Sigma, USA) and Compound Salvia Miltiorrhiza Injection (Chiatai Qingchunbao Pharmacantical Co.,Ltd., China) were used in this study.METHODS: Rat MDSCs were harvested in vitro, pudfied by differential adherence and enzyme digestion, and incubated in 6-well plate. Samples in the induction group were incubated in DMEM containing CNTF for 24 hours. The medium was changed.Subsequently, samples were dnsed three times, and then incubated in serum-free DMEM supplemented with Compound Salvia Miltiorrhiza Injection for 5 hours. Samples in the control group were treated with serum-free DMEM.MAIN OUTCOME MEASURES: Neurofilament protein and NF-KB inhibitor protein expression were detected using reverse transcription-polymerase chain reaction (RT-PCR) and Westem blotting.RESULTS: No neurofilament protein expression was found in MDSCs before induction, and neurofilament protein-positive MDSCs were detected following induction. Results of gel electrophoresis and Westam blot showed that no significant differences in NF-kB inhibitor protein expression were determined in the control group, and NF-kB inhibitor protein expression was significantly decreased in the induction group after induction.CONCLUSION: CNTF and Compound Salvia Miltiorrhiza Injection could inhibit the activation of NF-kB and induce the differentiation of MDSCs into neuron-like cells.Zeng XY, Wang W, Sun L, Zhang L, Zeng LD.Differentiation of muscle-derived stem cells into neuron-like cells induced by ciliary neurotrophic factor and Compound Salvia Miltiorrhiza Injection in vitro.Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu.2009;13(27): 5336-5340. [http://www.crter.cn http://en.zglckf.com]