1.Satisfaction level and stability of medical staff's work in pre-hospital care in Qingdao
Mei XU ; Run AN ; Mingxia WANG ; Xueqi SHENG
Chinese Journal of General Practitioners 2012;11(5):367-369
A total of 256 medical professionals at the hospitals of different levels were interviewed and requested to complete the relevant questionnaires.The findings revealed that the top five unsatisfied items were growth & development,working conditions,doctor-patient relationship,income and social status.The levels of job satisfaction varied with their specific occupations and technical titles.Around two thirds of them once had the thought of leaving their pre-hospital care posts.
2.Practice and analysis for the construction of compound medical library
Hongbo TAN ; Xudong XU ; Mei SHENG
Journal of Medical Postgraduates 2003;0(09):-
Objective: To raise the all-round informational level through analyzing the necessity of constructing compound medical library.Methods: Through aiming at the fundamental characters of compound medical library,so as to carry out the practices of theoretical researches,the development and optimization of network environments,the integration of informational resources,the enhancement and innovation of information service quality.Results: To provide some helpful references from the traditional to the compound state.Conclusion: Constructing compound medical library by combining the traditional with the digital base is the only way to accelerate the development of medical library.
3.Biomechanical effects of osteoporosis vertebral augmentation on the adjacent intervertebral levels using a three-dimensional finite element analysis
Sheng LU ; Yong-Qing XU ; Mei-Chao ZHANG ;
Chinese Journal of Orthopaedic Trauma 2004;0(09):-
Objective To investigate effects of volume,distribution and leakage of bone cement in ver- tebroplasty on the adjacent intervertebral bodies using an experimentally calibrated and anatomically accurate fi- nite-element model of elderly L4-L5 vertebral bodies.Methods Computed tomography(CT)scanning was done,at 1 mm intervals,on L4-L5 vertebral bodies of the lumbar spine of an old man cadaver that had no abnormal findings on rnentgenograms.The L4-L5 motion segment data were obtained from the CT scans to establish in computer a three-dimensional finite element model of L4-L5 functional spinal unit(FSU)with the software Ansys 7.0.Compressive load after virtual vertebroplasty on the damaged model,unipedicular and bipedieolar injections and leakage of cement into the intervertebral space,and the resulting endplate and disc stresses of the adjacent vertebral bodies were analyzed in various spatial distributions of the filling material and different loading conditions. An anatomically accurate finite-element model of elderly L4-L5 vertebral bodies was developed.Results The FSU study suggested that changes in stress and strain at adjacent levels were minimal.Furthermore,endplale and disc stresses of the adjacent vertebral bodies were not influenced by bone cement filling volumes or distributions except under bending,whereas asymmetric distribution and leakage of bone cement to the disk increased the stress of adjacent endplates.Conclusion Since asymmetric distribution and significant leakage of cement into the intervertebral space can increase the stresses of endplates of adjacent vertebral bodies and may lead to a fracture, symmetric placement of cement in operation should be achieved and leakage of cement avoided.
4.The statistical analysis about the scientific papers embodied by MEDLINE DATABASE in Nanjing General Hospital from 1996 to 2005
Mei SHENG ; Yuxiu LIU ; Hongbo TAN ; Xudong XU
Journal of Medical Postgraduates 2003;0(09):-
Objective:Through statistical analysis the situation of Nanjing General Hospital scientific research articles to be embodied by the international authority retrieval tool,appraises the hospital scientific research level and the academic status,provides the basis for the hospital administratives in the development of medical department and the training of talent aspect. Methods:With the aid of the MEDLINE retrieval method,analyzes all the Nanjing General Hospital scientific research ariticles,the number of articles in Chinese or foreign language and their distributed situation in the domestic and foreign periodicals from 1996 to 2005.Results:The articles embodied in near five-year show increased year by year,especially for the English articles.But the rank from first to fifth periodicals were published in China, and the number of articles in Chinese was beyond it in foreign language. Conclusion:The results show the international communication and the articles in English are value more and more in Nanjing General Hospital.But it is need to increased the number of articles in the external periodicals,especially the periodical be embodied by 《SCI》.They will advance the development the academic status and scientific research level in the hospital.
5.Changes of Matrix Metalloproteinase in Serum and Cerebrospinal Fluid of Children with Purulent Meningitis and Those Clinical Significances
xu-sheng, QI ; tong-guo, PAN ; yu-mei, YANG
Journal of Applied Clinical Pediatrics 1992;0(06):-
0.05,respectively).But most inte-restingly,the MMP-9 showed a positive relevance(r=0.686,P
7.Epidemiological analysis of Brucellosis reported through network in Taiyuan Shanxi province from 2006 to 2009
Li-zhen, XU ; Xiao-yong, WEI ; Shu-mei, ZHAO ; Lian-sheng, BAI ; Yu-bing, WANG ; Jun-mei, YANG
Chinese Journal of Endemiology 2011;30(1):88-91
Objective To reveal and forecast the incidence trend of Brucellosis, in order to provide acientific basis for future intervention and policy-making. Methods Descriptive epidemiological method was used to analyze and statistically describe the distribution of the disease in different times, different locations and different (7.0783/10 million to 13.1257/10 million) and Qingxu ( 1.4811/10 million to 8.5241/10 million) were higher,followed by Yangqu county(0 to 5.8232/10 million), Xiaodian(0.8108/l0 million to 2.4229/10 million) and Jinyuan district ( 0.5329/ 10 million to 1.5896/10 million), and the remaining counties(districts) in the annual There were 223 cases of Brucellosis patients from 2006 to 2009 in Taiyuan. Vocational high risk population was farmers, with a total of 140 cases, accounting for 62.78% of the total number of incidence, followed by students and workers, respectively, 13, 14 cases, accounting for 5.83% and 6.28%, other occupational groups, 56 cases,77.58%;28 cases aged above 60 years, accounting for 12.56%;22 cases aged younger than 19 years, accounting identical in the four years, most cases occurred in spring and summer and showing a clear seasonal high.Conclusions The incidence trend of Brucellosis is on the rise from 2006 to 2009. High risk population is farmer,and the number of younger patients is on the rise, we propose strengthen protection for high risk groups.
8.Extrapleural solitary fibrous tumor: report of a case.
Jin-hong MEI ; Hong-ping WAN ; Han LIU ; Ren-sheng CHEN ; Hui-chun GAO ; Shan XU
Chinese Journal of Pathology 2006;35(8):510-511
9.BLG gene knockout and hLF gene knock-in at BLG locus in goat by TALENs.
Shaozheng SONG ; Mengmin ZHU ; Yuguo YUAN ; Yao RONG ; Sheng XU ; Si CHEN ; Junyan MEI ; Yong CHENG
Chinese Journal of Biotechnology 2016;32(3):329-338
To knock out β-lactoglobulin (BLG) gene and insert human lactoferrin (hLF) coding sequence at BLG locus of goat, the transcription activator-like effector nucleases (TALEN) mediated recombination was used to edit the BLG gene of goat fetal fibroblast, then as donor cells for somatic cell nuclear transfer. We designed a pair of specific plasmid TALEN-3-L/R for goat BLG exon III recognition sites, and BLC14-TK vector containing a negative selection gene HSV-TK, was used for the knock in of hLF gene. TALENs plasmids were transfected into the goat fetal fibroblast cells, and the cells were screened three days by 2 μg/mL puromycin. DNA cleavage activities of cells were verified by PCR amplification and DNA production sequencing. Then, targeting vector BLC14-TK and plasmids TALEN-3-L/R were co-transfected into goat fetal fibroblasts, both 700 μg/mL G418 and 2 μg/mL GCV were simultaneously used to screen G418-resistant cells. Detections of integration and recombination were implemented to obtain cells with hLF gene site-specific integration. We chose targeting cells as donor cells for somatic cell nuclear transfer. The mutagenicity of TALEN-3-L/R was between 25% and 30%. A total of 335 reconstructed embryos with 6 BLG-/hLF+ targeting cell lines were transferred into 16 recipient goats. There were 9 pregnancies confirmed by ultrasound on day 30 to 35 (pregnancy rate of 39.1%), and one of 50-day-old fetus with BLG-/hLF+ was achieved. These results provide the basis for hLF gene knock-in at BLG locus of goat and cultivating transgenic goat of low allergens and rich hLF in the milk.
Animals
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Animals, Genetically Modified
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genetics
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Female
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Fibroblasts
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Gene Knock-In Techniques
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Gene Knockout Techniques
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Goats
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genetics
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Humans
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Lactoferrin
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genetics
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Lactoglobulins
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genetics
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Milk
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chemistry
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Nuclear Transfer Techniques
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Plasmids
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Pregnancy
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Transfection
10.Flavonoids from Selaginella uncinata.
Mei-ling YI ; Xi-feng SHENG ; Kang-ping XU ; Gui-shan TAN ; Hui ZOU
China Journal of Chinese Materia Medica 2015;40(15):3005-3008
In the current study, nine flavonoids were isolated and purified from 75% ethanol extract of Selaginella uncinata (Desv.) Spring by column chromatographic techniques over macroporous resin, polyamide, silica gel, Sephadex LH-20 and pre-HPLC. On the basis of their physico-chemical properties and spectroscopic data analyses, these compounds were elucidated as cirsimarin (1), nepitrin (2), apigenin-6-C-α-L-arabinopyranosyl-8-C-β-D-glucopyranoside (3), apigenin-6-C-β-D-glucopyranosyl-8-C-α-L-arabinopyranoside (4), apigenin-7-O-β-D-glucopyranoside (5), 2,3-dihydroamentoflavone (6), 4'-O-methylamentoflavone (7), 2,3-dihydro-4'-O-methyl-amentoflavone (8), and 2,3,2",3"-tetrahydron-4'-O-methyl-robustaflavone (9). Compounds 1-5 belong to flavonoid glycosides and were isolated from the genus Selaginella for the first time.
Flavonoids
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analysis
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Selaginellaceae
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chemistry