1.Finite element simulation of 3D heat transfer in forearms based on anatomic structure of vessels
Qiao YU ; Kai YUE ; Xinxin ZHANG
Chinese Journal of Tissue Engineering Research 2007;0(22):-
Based on the anatomic data and fractal theory, the vascular tree model of forearms similar to actual vessel was established, and then the 3D heat transfer model of forearms based on the actual vessel anatomic structure was created. The model was analyzed and investigated with finite element method to explore the influential factors such as dimensional distribution of vessel, blood perfusion rate and external heat source for the 3D temperature field. The simulation results were consistent with the experimental data derived from Pennes. The model well reflects the regional difference of tissue temperature caused by the irregular distribution of vessel, and provides temperature guidance for tumor thermotherapy.
2.Preliminary study of reference interval establishment of serum iron and magnesium
Ying ZHANG ; Tiecheng ZHOU ; Kai TONG ; Qiaohong YUE ; Xiaoke HAO
International Journal of Laboratory Medicine 2014;(10):1322-1323
Objective To study the reference interval of serum iron and magnesium of healthy people in northwest region . Methods 722 healthy people aged 18- <80 were recruited according to the screening criteria of enzymatic multi-center study of International Federation of Clinical Chemistry (IFCC) .Atomic absorption spectrophotometry and Roche assay kit were employed for serum iron ,magnesium detection .Results Differences of serum iron ,magnesium detection results obtained by two different methods ,between urban and rural people and among different age periods showed no statistically significant (P>0 .05) ,and the re-sults was combined into one group .Difference of iron test results between male and female was statistically significant (P<0 .05) , and grouping was performed according to gender ,that was ,male:10 .05-36 .21 mmol/L ,female:6 .19-30 .87 mmol/L .Difference of magnesium test results between male and female showed no statistical significance (P<0 .05) ,and was combined into one group , with the reference interval of 0 .74-1 .06 mmol/L .Conclusion The iron and magnesium 95% reference intervals of healthy people in northwest region are narrower than those of the National test results .
3.Tumor-associated macrophages in immune microenvironment of lung cancer
Yihui DING ; Kai ZHANG ; Yue HU ; Li LIU
Journal of International Oncology 2014;41(11):830-833
With the research on tumor immunity and tumor immunosuppression development,immunotherapies for lung cancer has become a research hotspot.Tumor immune microenvironment plays an important role in tumor genesis,development and metastasis of lung cancer.Tumor-associated macrophages (TAMs) are the dominant leukocyte population found in immune microenvironment of lung cancer.The relationship between TAMs and lung cancer becomes clear with further research.TAMs may become the new target of lung cancer immunotherapy.
4.Investigation of serum total bilirubin reference range of healthy population in Northwest area of China
Qiaohong YUE ; Ying ZHANG ; Kai TONG ; Tiecheng ZHOU ; Xiaoke HAO
International Journal of Laboratory Medicine 2015;(1):33-34
0bjective To investigate the serum total bilirubin level of healthy population in northwest area of China.Methods According to the guiding principle and the screening standard of C28-P3,722 individuals conforming to the screening standard from October 2011 to January 2012 were collected.Serum total bilirubin was determined with diazo reagent method(Roche)on the P module of Hitachi 7600 automatic biochemistry analyzer,and the vanadate reagent method(WAKO)on the D module of the Hitachi 7600 automatic biochemistry analyzer,respectively.The detection results were analyzed between different analysis systems,between country and city and among different age groups by SPSS13.0.The top and bottom limitations of 95% reference interval recommen-ded by the C28-P3 file were calculated by the non-parametric method.Results Serum total bilirubin detection results had no statis-tically significant differences between the two kinds of detection methods,between rural and urban populations,among all ages and genders (P >0.05).The ultimate reference interval of serum total bilirubin in the northwest area was 2.19 -29.29 μmol/L.Con-clusion The differences of serum total bilirubin reference interval exist between the healthy population in the Northwest area of China and the current reference interval used in domestic and foreign population.Establishing the reference intervals of new bio-chemical test item suitable for China′s population will provide the scientific basis for the evaluation of disease diagnosis,treatment, prognosis judgment and health assessment in the Chinese population.
5.Lower respiratory tract of pneumoconiosis on fosfomycin antibacterial activity in vitro of fosfomycin to infected in coal worker pneumoconiosis in vitro antibacterial activity.
Pei-Yue LIU ; De-Quan GU ; Kai-Hui ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2011;29(7):547-548
Acinetobacter Infections
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microbiology
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Acinetobacter baumannii
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drug effects
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isolation & purification
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Anthracosis
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microbiology
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Anti-Bacterial Agents
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pharmacology
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Drug Resistance, Bacterial
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Fosfomycin
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pharmacology
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Humans
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Imipenem
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pharmacology
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Pneumonia, Bacterial
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microbiology
6.Expression and Characterization of the Recombinant Epitopes of HSV-gB and HSV-gD Protein
Jingyi GAO ; Yue WANG ; Yuji ZHAO ; Kai FANG ; Jinsong ZHANG
Journal of China Medical University 2010;(3):181-183
Objective To prepare the recombinant epitopes of HSV-gB and HSV-gD protein and provides a new antigen protein for the development of herpes simplex virus(HSV)vaccine.Methods The epitopes of HSV-gB and HSV-gD protein were analyzed by epitope prediction software.A novel gene named X which encoded 9 predicted epitopes of HSV-Gb and HSV-gD protein was designed and synthesized using chemical method.X gene was cloned into vector PET-28a(+),expressed in Escherichia cob' BL21(DE3),and analyzed by Western blot.Results X gene was successfully designed and expressed in Escherichia coli BL21(DE3).Western blot analysis showed that recombinant X protein,which was with His marker,can be detected by anti-His antibody.Conclusion In this study we establish a newmethod to express recombinant epitope protein,which may be a new protein for developing vaccine against HSV infection.
7.Characterization of proteins in hyperlipidemia pancreas using differential gel electrophoresis and tandem mass spectrometry
Wei ZHANG ; Xingpeng WANG ; Zhuowei YU ; Yue ZHU ; Xiaofeng YU ; Kai WU ; Yue ZENG ; Mingyi XU
Chinese Journal of Pancreatology 2008;8(2):101-104
Objective To investigate the mechanism of hypedipidemia on pancreas of rats by comparative proteomic analysis.Methods Ten male SD rats were randomly divided into two groups,the experimental group Was fed with high lipid forage and the control group Was fed with normal food.Pancreatic samples from the two groups were harvested six weeks later.Differential protein analysis Was performed using differential in-gel electrophoresis(DIGE),and characterizing the protein biomarkers using tandem mass spectrometry.Western blot Was used to confirm the expression of significantly changed proteins.Results Compared to the normal pancreas tissue,a total of 3 protein spot-features were found to be significantly increased and 11 significantly decreased in pancreatic samples with hyperlipidemia.Significantly increased proteins in hyperlipidemia pancreatic samples were arginaseⅡ,ribonuclease inhibitor and glyeine amidinotransferase,which increased by 2.19,1.82 and 1.12 fold,respectively.Significantly decreased proteins in hyperlipidemia group were tyrosyl-tRNA synthetase,alpha-amylase,triacylglycerol lipase,DJ-1protein,Cu,Zn superoxide dismutase,which dicreased by 2.48,2.37,1.85,1.73 and 1.65 folds,respectively.Western blot analysis revealed increased arginase Ⅱ levels and decreased alpha-amylase in pancreatic samples with hyperlipidemia.Conclusions Pancreas wag possibly injured by hyperlipidemia via increase of arginase Ⅱ.Decreased amylase and lipase may be the protection mechanism of pancreas.
8.Analysis oncompositionrules ofsuppress coughbased onassociationrules andclustering algorithm
Yanping JIN ; Jiarui WU ; Bing ZHANG ; Yue ZHANG ; Wei ZHOU ; Kai JI
International Journal of Traditional Chinese Medicine 2015;(6):535-538
ObjectiveTo explore composition rules of suppress cough prescriptions.MethodsThe suppress cough prescriptions in “The New National Medicine” were collected to build a database based on Traditional Chinese medicine inheritance assist system. Themethods of association rules with apriori algorithm and complex system entropy cluster were used to achieve the frequency of medicines and association rules between drugs.ResultsThe data-mining results indicated that themostfrequentlyused drugs wereRadix Glycyrrhizae, Platycodon grandiflorum, Semen armeniacae amarae, Ephdra vulgaris, Dried tangerine or orange peel. The most frequent drug combinations were “Radix Glycyrrhizae, Platycodon grandiflorum”, “Radix Glycyrrhizae, Semen armeniacae amarae”, “Radix Glycyrrhizae, Dried tangerine or orange peel” and so on. The drugs with a high degree confidence coefficient of association rules include “Dried tangerine or orange peel, the root bark of white mulberry”, “Dried tangerine or orange peel, Snakegourd Seed”. The new prescription that we can get composited by Fructus AurantiiwasAngelica decursiva, Pericarpium Citri Reticulatae, Rhizoma Anemarrhenae, the root bark of white mulberry.ConclusionFrom the analysis above, we could conclude that the drugs insuppress cough prescriptions havemoreeffects ofrelieving superficies, clearing heat and drying dampness, ventilating the lung and resolving phlegm,nourishingYinand supplementingQi.
9.Exploration and Practices of Tutorial System to Undergraduates in Medical Colleges and Universities
Ting CHEN ; Kai ZHANG ; Wenjun WANG ; Chunzhi ZHANG ; Xitong YUE ; Xuechun WANG
Chinese Journal of Medical Education Research 2005;0(05):-
This text briefly introduces tutorial system's history evolution and development and expounds its necessity and realistic meaning,emphasizing that practising such a guidance program is necessary for developing students' innovative ability and individuality,and for strengthening the construction of the teachign staff,which is the call of students and the responsibility of education,and the inevitable choice under credit system.It focuses on how to set up effective and practical tutorial system of the undergraduate course from the construction of tutors'troops,the feasible measures and system,and tutor stimulative mechanism.
10.Exploration of environmental education in medical college
Min ZHAI ; Xitong YUE ; Zhenzhong ZHANG ; Xiangyan QU ; Haiyang LI ; Kai ZHANG
Chinese Journal of Medical Education Research 2003;0(02):-
To conduct environmental education intervention for medical students,a survey of environmental protection and sustainable development-related knowledge,attitudes,behavior were conducted through questionnaire among the medical students to explore the impact of envi-ronmental quality with creation of environmental education curriculum and the appropriate way for institutions of higher medical education.