1.Effects of high glucose on the proliferation of HSC and expressions of TGF-?_1,PDGF and PCⅢ in HSCs
Mingli JIAO ; Li REN ; Xinming CHANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2004;0(05):-
Objective To investigate the effects of high glucose on the proliferation of hepatic stellate cell-T6(HSC-T6) and the expressions of transformation growth factor-?1(TGF-?1),platelet-derived growth factor(PDGF) and precollagen Ⅲ(PCⅢ).Methods Based on glucose groups of different concentration,we observed the proliferation of HSC in 30min-16h time period,and used the methods of immunohistochemistry and radioimmunoassay to measure the expressions of TGF-?1,PDGF and PCⅢ in the supernatant at 48h and 72h.Results In 2-16h time period,the proliferation of HSC was increased stepwise over time in 1500-6000mg/L group,and was more visible in 4500-6000mg/L group.The expressions of TGF-?1 and PDGF increased at 48h,and the expression of PCⅢ in the supernatant increased at 72h in 4500-6000mg/L group compared with that in glucose control and hypertonic control groups.Conclusion High glucose can promote hepatic fibrosis by stimulating the expressions of TGF-?1,PDGF and PCⅢ in HSC-T6.
2.Preliminary Research for the Effect of EMRE on Myocardial Ischemia Injury in Experimental Mice
Fengzhou LIU ; Zhe JING ; Mingli LIU ; Enwei ZHANG ; Jianghua NING ; Jiao MOU
Chinese Circulation Journal 2017;32(7):701-706
To study the effect of essential MCU regulator (EMRE) on myocardial ischemia injury in experimental mice with underlining mechanism. Methods: Myocardial EMRE expression was up-regulated by EMRE adenovirus (Ad-EMRE) injection in mice myocardium tissue. Our research included in 3 groups: Sham operation group, sham mice received myocardium injection of eGFP adenovirus (Ad-eGFP); Myocardial infarction (MI) control group, the mice received Ad-eGFP injection and 48 hours later had coronary LAD ligation to establish MI model; MI treatment group, MI mice received Ad-EMRE injection. All animals were treated in 3 weeks. Mice cardiac function was examined by ultrasound; cardiomyocyte hypertrophy was evaluated by wheat germ agglutinin (WGA) staining, collagen fibrosis was measured by Masson staining, cell apoptosis was determined by TUNEL assay, protein expressions of EMRE, caspase-3 and caspase-9 were detected by Western blot analysis and mitochondrial reactive oxygen species (ROS) was assayed by MitoSOX fluorescence probe. Results: Compared with MI control group, MI treatment group showed the worse cardiac function, aggravated cardiac hypertrophy and elevated collagen fibrosis; in addition, MI treatment group had obviously increased cardiomyocyte apoptosis and increased protein expressions of Caspase-3, Caspase-9 and more mitochondrial ROS production. Conclusion: Over expressed EMRE can increase mitochondrial ROS production, induce cardiomyocyte apoptosis and therefore, aggravate myocardial ischemia injury in experimental mice.
3.Analysis on salary satisfaction of medical staff in the county-level public hospitals of Hei-longjiang province
Libo LIANG ; Qunhong WU ; Ying LIU ; Yanhua HAO ; Hong SUN ; Mingli JIAO ; Jian SONG ; Jiejing HAO ; Qingxia PAN
Chinese Journal of Health Policy 2014;(12):20-23
Objective:To measure the salary satisfaction level of medical staff in county-level public hospitals and provide reference for the design of policy reforms. Method:Eight county-level public hospitals were investigated. All analyses were performed using SPSS 19. 0 via statistical description and binary logistic regression. Results: The total salary satisfaction of the medical staff was 48 . 8%, and the average score was 54 . 05 ± 18 . 04 . The welfare satis-faction is the lowest (38. 8%), and the average score is 7. 98 ± 3. 51. Logistic regression analysis shows that the ac-ademic degree, department category, working hours per week, acceptance of bribes, and officially budgeted posts are the main factors affecting overall compensation satisfaction. Conclusion:The overall salary satisfaction level of medi-cal staff in county-level public hospitals is very low, and the welfare satisfaction is the lowest. Establishing the rea-sonable level of compensation, the rise of compensation, and the welfare mechanism are feasible choices to improve salary satisfaction.
4.Development and preliminary application of the measurement scale for medical students' professionalism cognition
Minglei SUN ; Libo LIANG ; Mingli JIAO ; Wei LIU ; Siyi TAO ; Yuxin XUE ; Weijian SONG ; Xin WAN ; Yan ZHENG
Chinese Journal of Medical Education Research 2021;20(1):86-90
Objective:To explore the present situation of medical students' professionalism cognition and provide reference for medical personnel training and medical education.Methods:A cross-sectional survey was conducted on medical students among 2 affiliated hospitals of a medical university in H province by cluster sampling. Exploratory factor analysis and reliability and validity test were carried out and a descriptive analysis of the present situation of professionalism was conducted by SPSS 20.0. Amos21.0 software was used for a confirmatory factor analysis on the samples.Results:The measurement scale had good reliability and validity, and the Cronbach alpha coefficient of the scale was 0.901. The average professionalism score of the medical students was about 80 points. The score of "physical and mental status and self-development ability" was the highest (83.65 points), and the lowest score was "academic ability" (72.21 points). There was a little difference in the professionalism cognition between the two hospitals, with significant differences between the dimension "respect and care" and "responsibility".Conclusion:This study has initially formed a medical professionalism measurement scale with good reliability and validity. The professionalism of medical students in the 2 affiliated hospitals of a medical school in Province H is in good condition as a whole. In the future, medical education should pay more attention to the combination of basic professional knowledge and clinical practice of medical students, and change the training model of medical students in order to improve the academic ability of medical students and medical students' overall cognition of professionalism.
5.Comparative analysis of calculation methods of coil sensitivity in parallel MRI.
Yiming LI ; Bin LI ; Mingli QIAN ; Longchen WANG
Chinese Journal of Medical Instrumentation 2013;37(1):14-17
Calculation methods of coil sensitivity in parallel MRI were elaborated, compared and analyzed.
Algorithms
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Magnetic Resonance Imaging
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instrumentation
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methods
6.Research trends and hot spots in campus bullying using CiteSpace software
Chinese Journal of School Health 2019;40(5):716-720
Objective:
To explore the hot issues and developing trend of the research of campus bulling,and to provide a reference for the research on campus bullying.
Methods:
The power of research, high-impact authors, highly cited journals, high-frequency keywords, and burst terms related to school bullying from the Web of Science database were analyzed using CiteSpace software. The data collection time was May 9, 2018.
Results:
A total of 3 561 literature data were obtained. The results showed that the country with the highest number of publications was the United States; England had the highest centrality and was in a critical position in the research. The University of Turku in Finland was the core research institution. Salmivalli C was the author of the highest publication, Olweus D was the most frequent cited author. The high-impact journal was Aggressive Behavior. In terms of high-frequency keywords, the core vocabulary such as bully, adolescence, and victim were listed. Middle school students were the most frequently studied; in the form of bullying, the frequency of violence, aggression, and cyberbully was more common; depression, mental health and health appeared more frequently in terms of bullying outcomes. Mutant words including school children, bullying, victimization, relational aggression were more common.
Conclusion
The research hotspots on campus bullying during the past decade include violence, gender, social support, and mental health. Bullying among college students will be a hot research topic in the future. Continued efforts should be carried out in the field of campus bullying in China.
7.Strengthen the management of intervention on compliance, heart function, life quality and prognosis on the patients with chronic heart failure
Xinchang LI ; Mingli JIAO ; Zhaoquan HUANG ; Wuxiang SHI
China Modern Doctor 2014;(35):98-101
Objective To investigate the effect of strengthening intervention management on the compliance, heart func-tion, life quality and prognosis for the patients with chronic heart failure. Methods From September 2013 to September 2014, 100 cases admitted to the Department of Cardiology of General Hospital of Daqing Oil Field in patients with congestive heart failure were selected as the observation objects, they were randomly divided into strengthening the management of intervention group 50 cases and routine management of the intervention group 50 cases, treatment com-pliance and cardiac function index, life quality and prognosis the situation of the patients before and after treatment were compared between the two groups. Results The complete compliance rate of strengthen the management of inter-vention group was 84%, significantly higher than that of the conventional management intervention group (P<0.05). HR, LVEF, CO and E/A of strengthen the management of intervention group significantly improved than the control group, the quality of life scores also improved significantly compared with the conventional management intervention group (P<0.05). And rehospitalization rate of strengthen the management of intervention group was 16.0%, significantly lower than that of the conventional management intervention group, and the mortality rate of strengthen the management of intervention group was 2.0%, was slightly lower than the conventional management intervention group. Conclusion The implementation of strengthening the management of patients with chronic congestive heart failure, can improve the treatment compliance, significantly improve cardiac function and prognosis in patients with heart failure, improve the quality of life of patients with heart failure.
8.An ear thermometer based on infrared thermopiles sensor.
Chinese Journal of Medical Instrumentation 2013;37(5):336-339
According to the development of body temperature measurement mode, an ear thermometer with infrared thermopiles sensor is designed for body thermometry Compared with oral thermometer, the accuracy of ear thermometer is acceptable.
Body Temperature
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Ear
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Equipment Design
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Humans
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Infrared Rays
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Thermometers
9.Application of wireless sensor networks in healthcare.
Yiming LI ; Bin LI ; Mingli QIAN ; Longchen WANG
Chinese Journal of Medical Instrumentation 2013;37(5):351-354
This paper introduces general architecture of wireless sensor networks architecture and application in healthcare, discusses the application direction which is urgent need to expand in medical field.
Telemedicine
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methods
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Wireless Technology
10.Development and evaluation of a high-fat/high-fructose diet-induced nonalcoholic steatohepatitis mouse model.
Jing LIU ; Yinlan LIU ; Wenjun WANG ; Yan LUO ; Zhenjie ZHUANG ; Qibin JIAO ; Jianyu CHEN ; Dongxue BIAN ; Xiaojie MA ; Yunhao XUN ; Mingli ZHU ; Junping SHI
Chinese Journal of Hepatology 2014;22(6):445-450
OBJECTIVETo develop and evaluate a mouse model of nonalcoholic steatohepatitis (NASH) induced by a high-fat and high-fructose (HFHFr) diet.
METHODSSix-week-old C3H mice were randomly divided into groups for HFHFr diet experimental modeling, high fat-only (HF) diet controls, high fructose-only (HFr) diet controls, and standard chow (SC) diet controls. The standard HFHFr diet was modified so that it consisted of 76.5% standard chow, 12% lard, 1% cholesterol, 5% egg yolk powder, 5% whole milk powder, and 0.5% sodium cholate, along with 20% fructose drinking water. At the end of experimental weeks 4, 8, and 16, measurements were taken for the NASH-related parameters of body mass, serum levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), lipid profile, and wet liver weight (upon sacrifice). In addition, histological changes in the liver were evaluated by hematoxylin-eosin (HE) and oil red O staining. The significance of differences between groups was assessed by statistical analysis, using the
METHODSof t-test, Wilcoxon rank sum test, x2 test, F test or Fisher's test as appropriate.
RESULTSAs compared to the mice in the SC group at the corresponding time points, the mice in the HFHFr and HF groups showed significantly higher body mass and wet liver weight, as well as more extensive and robust lipid disposition in hepatic tissues as evidenced by oil red O staining. However, HE staining indicated that the HFHFr and HF groups had different degrees of macrosteatosis accompanied with intralobular inflammatory foci, with the former showing more remarkable NASH-related histological changes. Analysis at the end of week 16 showed that about 80% of the mice in the HFHFr group had developed NASH [nonalcoholic fatty liver disease (NAFLD) activity score (NAS): less than 5]. The levels of low-and high-density lipoprotein (LDL and HDL) cholesterol, as well as the levels of ALT and AST, were increased from the end of week 4 to the end of week 8 for the HFHFr and HF groups. At the end of week 16, the two groups differed in the extent of increase in total cholesterol and LDL and HDL cholesterol, with only the HFHFr group showing statistically significant changes. Specifically, at the end of week 16, the HFHFr group showed ALT levels of 108.5 +/- 93.34 U/L (F=5.099, P =0.005 vs. HF group: 44.30 +/- 35.71 U/L, HFr group: 46.70 +/- 17.95 U/L, SC group: 24.70 +/- 6.57 U/L), AST levels of 316.30 +/- 208.98 U/L (F=6.654, P=0.001 vs. HF: 132.12 +/- 75.43 U/L, HFr: 143.30 +/- 38.53 U/L, SC: 122.60 +/- 12.76 U/L), total cholesterol levels of 5.18 +/- 0.58 mmol/L (F=72: 470, P =0.000 vs. HF: 3.94 +/- 0.75 mmol/L, HFr: 2.30 +/- 0.50 mmol/L, SC: 2.02 +/- 0.24 mmol/L), HDL cholesterol levels of 3.05 +/- 0.49 mmol/L (F=25.413, P =0.000 vs. HF: 2.65 +/- 0.54 mmol/L HFr: 1.77 +/- 0.47 mmol/L, SC: 1.58 +/- 0.16 mmol/L), LDL cholesterol levels of 1.11 +/- 0.23 mmol/L (F =83.297, P =0.000 vs. HF: 0.72 +/- 0.17 mmol/L, HFr: 0.27 +/- 0.04 mmol/L, SC: 0.20 +/- 0.05 mmol/ L).
CONCLUSIONThe present study suggests that a mouse model of NASH can be successfully induced by a 16-week modified HFHFr diet.
Animals ; Diet, High-Fat ; Disease Models, Animal ; Fructose ; administration & dosage ; Male ; Mice ; Mice, Inbred C3H ; Non-alcoholic Fatty Liver Disease