2.Effect of epidermal growth factor on glomerular epithelial cells cytoskeleton
Chinese Journal of Nephrology 2005;0(07):-
Objective To study the changes of adriamycin-induced glomerular epithelial cells (GECs) permeability and cytoskeleton, and to explore the role and possible mechanism of epithelia growth factor (EGF) on adriamycin-induced glomerular epithelial barrier function. Methods Rat GECs on Milicell-PCF Inserts were exposed to adriamycin (0.5 ?mmol/L) 24 hours in the absence or presence of EGF. The paracelluar permeability to BSA and cell viability were evaluated. The expression of F-actin and alpha-actinin were analyzed by immunofluorescence and Leica laser scan confocal microscopy. Results After induced by adriamycin for 24 hours, paracelluar permeability to BSA and F-actin reorganization rate increased. Disassembling of cortical cytoskeleton architecture was observed. Stress fiber in cytoplasm disappeared. Alpha-actinin staining showed perinuclear enhancement, which is different from normal cytosolic pattern. EGF significantly reduced adriamycin induced effect. Higher level of BSA passed through GEC monolayer in a dose-dependent manner. EGF prevented adriamycin-induced cytoskeletal reorganization. Disassembled cortical cytoskeleton was recovered, and stress fiber appeared again. Alpha-actinin staining mainly exhibited cytosolic uniform distribution as control GEC. In addition, administration of either AG1478, a specific inhibitor of EGF-receptor tyrosine kinase, or U73122, a specific inhibitor of PLC? before EGF treatment attenuated the EGF-mediated effect, whereas neither AG1478 nor U73122 exerted influence in the absence of EGF. Conclusions Adriamycin increases GEC paracellular permeability to BSA as a result of adriamycin-induced cytoskeleton disassembling and disruption. EGF may prevent adriamycininduced cytoskeleton reorganization and maintain glomerular epithelial barrier function through EGF mediated EGF-EGFR-PLC? signal pathway.
3.Malignant myoepithelioma in the nasal septum: a case report and literature review.
Ying-ying XU ; Shui-hong ZHOU ; Bin-qi WENG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2011;46(9):770-771
Endoscopy
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Humans
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Male
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Middle Aged
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Myoepithelioma
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surgery
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Nasal Septum
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pathology
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Nose Neoplasms
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surgery
5.Changing trend and influencing factors of health literacy among residents in Ningbo from 2015 to 2019
XU Qian Qian ; MEI Qiu Hong ; FENG Hong Wei ; ZHU Ying Ying ; HE Tian Feng
Journal of Preventive Medicine 2021;33(1):35-40
Objective:
To learn the health literacy status, trend and associated factors of Ningbo residents from 2015 to 2019, so as to provide basis for developing health policies and interventions.
Methods:
The monitoring data of health literacy of Ningbo residents from 2015 to 2019 was collected. The health literacy level was calculated and standardized by the population data of the sixth national census of Ningbo in 2010; five-year absolute growth and growth rate were used to reflect the changing trend. Multivariate logistic regression model was employed to analyze the influencing factors for the health literacy level.
Results:
The health literacy levels from 2015 to 2019 were 15.44%, 21.73%, 22.41%, 27.60% and 30.03%, with an annual increase trend ( P<0.05 ). The five-year absolute growth and growth rate were 14.59% and 94.49%. The Results of multivariate logistic regression analysis indicated that the year ( OR=1.158, 95%CI: 1.132-1.184 ), age ( 25-<35岁 years, OR=1.235, 95%CI: 1.039-1.468; 35-<45岁 years, OR=1.416, 95%CI: 1.193-1.681; 45-<55岁 years, OR=1.221, 95%CI: 1.024-1.455 ) , education level ( primary school, OR=1.790, 95%CI: 1.461-2.195; junior high school, OR=2.574, 95%CI: 2.102-3.154; high school/vocational high school/technical secondary school, OR=4.863, 95%CI: 3.943-5.998; college or above, OR=8.829, 95%CI: 7.109-10.965 ) , urban areas ( OR=0.934, 95%CI: 0.874-0.998 ) and occupation ( farmers, OR=0.692, 95%CI: 0.608-0.787; workers, OR=0.746, 95%CI: 0.664-0.837; enterprise staff, OR=0.822, 95%CI: 0.745-0.906; others, OR=1.106, 95%CI: 1.009-1.211 ) were the influencing factors for health literacy level.
Conclusion
The health literacy level of Ningbo residents shows an upward trend from 2015 to 2019, which are associated with age, education level, area and occupation.
6.ALK-positive primary anaplastic large-cell lymphoma of stomach: report of a case.
Wei-hua WU ; Hong-ying CAO ; Zhen XU
Chinese Journal of Pathology 2011;40(3):197-198
Adult
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Diagnosis, Differential
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Female
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Gastrectomy
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methods
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Gastrointestinal Stromal Tumors
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metabolism
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pathology
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Humans
;
Ki-1 Antigen
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metabolism
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Leukocyte Common Antigens
;
metabolism
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Leukosialin
;
metabolism
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Lymphoma, Large-Cell, Anaplastic
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metabolism
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pathology
;
surgery
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Melanoma
;
metabolism
;
pathology
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Mucin-1
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metabolism
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Receptor Protein-Tyrosine Kinases
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metabolism
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Stomach Neoplasms
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metabolism
;
pathology
;
surgery
8.Experimental study on differentiation of different passages of human bone marrow mesenchymal stem cells into neurons in vitro
Ying CHANG ; Xin QI ; Hong YANG ; Ping XU
Chinese Journal of Tissue Engineering Research 2005;9(46):130-132
BACKGROUND: Bone marrow mesenchymal stem cell (MSC) is a kind of stem cell with potential of self-repair and multi-differentiation. It may differentiate into neuron, adipose cell and osteoblasts.OBJECTIVE: To observe the transforming efficacy of human bone marrow mesencymal stem cells (hMSCs) into neurons in vitro in different generations so as to provide reliable experimental data for the clinical application of MSCs.DESIGN: Single sample was designed.SETTING: Department of Neurology, Sino-Japan Friendship Hospital,Jilin UniversityPARTICIPANTS: Marrow tissue was collected from 9 cases of spinal fusion in Department of Orthopedics of First Hospital affiliated to Jilin University. Of 9 cases, all of them were in known of the experiment.METHODS: The experiment was performed in Sino-Japan Hospital affiliated to Jilin University from September 2002 to February 2003. The primary and generative culture of hMSCs was given. Experimental and the control groups were divided.-mercaptoethanol was taken as inducer. hMSCs of the 2rd, 4th, 6th and 8th generations were selected for induction in vitro for 6 h. Cytochemistry staining and immunohistochemistry staining were used to assay the expressions of neuronal and astrocytic marked proteins.MAIN OUTCOME MEASURES: ① Growth curve analysis on genera tive culture of hMSCs. ② Nissel staining. ③ Immunohistochemical staining.RESULTS: ① Common characters of generative culture: The latent phase of generative culture was 12-24 hours, exponential phase was 7-10 days and 11-13 days later, cell culture entered the platform phase. ② After induction of the 2nd, 4th and 6th generated hMSCs, deep blue granular Nissl body presented in cytoplasm. In 6 hours on the 8th induction, there was no obvious deep blue Nissl structure presented in cytoplasm.③ Except GFAP, NSE and NF-M were expressed in hMSCs of different generations after induction for 6 hours. There was no significant difference in positive rates of the 2nd, 4th and 6th generations (P > 0.05), but the significant difference presented in comparison between the 8th generation and the 2nd, 4thand 6th generations (P < 0.05). CONCLUSION:-mercaptoethanol can induce hMSCs differentiating into neuronal cells in vitro. The positive rates of the 2nd, 4th and 6th generationsare higher remarkably than the 8th generation.
9.Development of Loop-mediated Isothermal Amplification (LAMP) Method for Detection of Vibrio parahaemolyticus
Qian XU ; Xiao-Hong SUN ; Yong ZHAO ; Ying-Jie PAN ;
China Biotechnology 2006;0(12):-
Vibrio parahaemolyticus has been considered as one of the most important foodborne bacterial pathogens.The loop-mediated isothermal amplification(LAMP) that amplifies DNA with high specificity and rapidity under an isothermal condition was applied for rapid detection of this pathogen for the first time.A set of four primers,two outer and two inner primers,was designed specifically to recognize the thermolabile hemolysin gene(tlh) of V.parahaemolyticus.The LAMP reaction mix was optimized.The most optimal reaction temperature and time of the LAMP assay for the tlh gene were 60℃ and 60min,respectively.Genomic DNAs from 28 bacterial strains including 14 V.parahaemolyticus strains were amplified using LAMP,and no amplicon was observed in other bacterial strains.The detection limit of this LAMP assay was around 90 fg of V.parahaemolyticus genomic DNA and 24 colonies forming units for pure cultures.In addition,this method was applied to detect artificially contaminated food samples,and the detection limit was 89 cfu/g for non-cultured artificially contaminated food samples.These results suggested that detection of V.parahaemolyticus by LAMP is an effective and low-cost procedure with high specificity and sensitivity that requires no specialized equipment.This assay is expected to become a valuable tool for rapid detection and identification of V.parahaemolyticus.
10.Ethical Problems and Countermeasures of Medical Support at Chinese Second-Grade Peacekeeping Hospital in Democratic Republic of the Congo
Hong LI ; Ying XU ; Jing FENG ; Aizhong LIU
Chinese Medical Ethics 2017;30(7):810-813
The particularity and complexity of medical support in the United Nations peacekeeping operations bring various ethical problems to medical staff of the second-grade peacekeeping hospitals during their work.This paper analyzed the ethical dilemma in terms of the relevant provisions of the United Nations,the medical humanitarianism principle,lack of medical resources and the principle of fairness,emergency treatment and informed consent,cultural differences and the principle of optimal health,occupational protection requirements and respect to the human rights.In addition,it discussed the countermeasures from personnel selection,the laws and regulations,the training of medical norms and foreign customs,the concept of “patient-centered”,and the humanitarian treatment,providing a theoretical basis for solving the problems of medical support in peacekeeping operations.