1.Short term efficacy of glucocorticoids in patients with idiopathic interstitial pneumonia evaluated by high resolution CT semi quantitative scores
Chinese Journal of Biochemical Pharmaceutics 2017;37(7):434-435
Objective To study and analyze the short-term effect of glucocorticoid in patients with idiopathic interstitial pneumonia by analyzing the semi quantitative scores of high resolution CT.Methods 50 cases of idiopathic interstitial pneumonia treated in our hospital from May 2015 to October 2016 were selected as the research object.Clinical data were analyzed, including smoking, signs of hospitalization and dyspnea score.High resolution CT level for the right diaphragmatic top tube, bifurcation, left atrium roof, in 3 aspects from the calculation of cellular disease and shadow grid as a percentage of average, the critical point of high resolution CT scores were 10%, 20%, 30%, 40% and 50%.The accuracy, sensitivity and specificity of glucocorticoids were analyzed.The chi square test was used to examine the enumeration data.Results The accuracy was 72% when the high resolution CT score was 20% critical point.In patients treated with corticosteroids, the high resolution CT score was greater than or equal to 20% for patients and 25 for patients with a score of less than 20% for 25 patients.20% or more patients died during hospitalization, 10 cases, the mortality rate was 40%, and the effective rate of glucocorticoid treatment was 8%.Less than 20% of the patients died during hospitalization, 1 cases, the mortality rate was 4%, and the effective rate of glucocorticoid treatment was 50%.Conclusion High resolution CT semi quantitative score judgment of idiopathic interstitial pneumonia patients treated with glucocorticoid efficacy of high accuracy, high resolution 20% scores higher accuracy, and the diagnosis is well, with further clinical promotion and application significance.
2.The significance of multifunctional peritoneal biopsy needle in the diagnosis of tuberculous peritonitis
Su LIU ; Yuexiang CHEN ; Jianwei SHEN
Chinese Journal of Practical Internal Medicine 2006;0(14):-
Objective To identify applied value of multifunctional peritoneal biopsy needle(MPBN)in the diagnosis of tuberculous peritonitis(TP).Methods Peritoneal biopsy was performed with MPBN in 19 cases of 27 patients with TP between January 2001 and September 2005,which was compared with the clinical presentation,laboratory analysis and laparoscopy.Results Five patients were diagnosed as TP according the clinical presentation and laboratory analysis.In 19 patients with TP,73.68% was accurately diagnosed as with MPBN.All of the 3 patients were accurately diagnosed as TP with laparoscopy.Conclusion Peritoneal biopsy with MPBN is useful in diagnosis of tuberculous peritonitis,especially when there is no laparoscope.
3.A pilot study of the effect of taurine on patients with nonalcoholic fatty liver.
Yuexiang CHEN ; Su LIU ; Xin ZENG
Chinese Journal of Practical Internal Medicine 2001;0(03):-
Objective TO investigate the efficacy and safety of taurine in this disorder.Methods Nineteen patients with nonalcoholic fatty liver verifie d by B ultrasound and (or) computed tomography were included in this pilot study .Viral,alcoholic,autoimmune and other hepatic diseases were excluded.Patients we re given 6.0 g of taurine daily for 3 months.Measurement of liver function,s erum lipid profile,fast blood glucose,and B ultrasound and (or) computed tomogra phy examination were done before and after three-month treatment.Results A significant decrease in the serum levels of alanine a minotransferase,aspartate aminotransferase and ?-glutamyl transpeptidase (P
4.Analysis of laboratory examination of recurrent vaginitis
Shuhua YANG ; Ying LIU ; Yuexiang ZHANG
International Journal of Laboratory Medicine 2014;(8):981-982
Objective To explore laboratory examination method of vaginal infection disease ,and to investigate the etiology of recurrent vaginitis .Methods 324 patients with recurrent vaginitis were selected to investigated the symptoms ,signs and vaginal discharge examination .Results (1)Among 324 patients ,293 cases (90 .4% ) of single infection and 31 cases (9 .6% ) mixed infec-tions were founded .There were 97 cases with VVC ,81 cases with CV ,17 cases with AV ,12 cases with BV ,and 14 cases with TV in the single infection cases .(2)In the 120 cases with VVC ,Candida albicans were accounted for 65 .0% ,non-Candida albicans strains were founded in 42 cases (35 .0% ) .(3)Among 28 cases of AV ,Escherichia coli ,Staphylococcus aureus ,Streptococcus aga-lactiae and Enterococcus f aecalis were main bacteria .Conclusion Recurrent vaginitis is common in clinical obstetrics and gynecolo-gy .Because of complex pathogeny ,clinicians should pay attention to laboratory results ,combined with the symptoms and signs , comprehensive evaluation ,improve disease diagnosis and treatment .
5.Study of microsatellite instability in epithelial ovarian tumors
Yuan LU ; Xishi LIU ; Yuexiang WANG ; Houyan SONG ; Nanbert ZHONG
Journal of Peking University(Health Sciences) 2006;38(1):62-65
Objective: To evaluate the frequency of MSI in epithelial ovarian tumors and its relationship with clinicopathologic features. Methods: Ninety fresh specimens of epithelial ovarian tumors, including 74 primary and 16 secondary tumors, were collected. Microsatellite analysis was carried out using 5 mono- and dinucleotide markers from the National Cancer Institute Consensus Panel by fluorescence-labeled polymerase chain reaction. Results: Of 90 epithelial ovarian tumors analyzed, 18 demonstrated a high level of microsatellite instability (MSI-H), 30 demonstrated a low level of microsatellite instability (MSI-L), and the remaining 42 exhibited microsatellite stability (MSS). Frequency of microsatellite instability (MSI) at loci BAT-25 was higher than that at any other loci. No correlation was found between MSI level and patient age, tumor type, tumor differentiation (P>0.05). But the microsatellite instability-high phenotype correlates with clinical stage.It tended to occur more frequently in early-stage tumors (P=0.03). Conclusion: The frequent MSI in epithelial ovarian tumors suggests that it is an early event to involve in the development of epithelial ovarian tumors.
6.Progress on biogas technology and engineering.
Xiaofeng LIU ; Yuexiang YUAN ; Zhiying YAN
Chinese Journal of Biotechnology 2010;26(7):924-930
Dwindling supplies of conventional energy sources and the demand to increase the share of renewable energy for sustainability have increased the significance of biogas, the product of synergistic fermentation of biodegrable organic wastes from municipal, agricultural and industrial activities by microbial populations under anaerobic conditions. With extensive research and engineering practice, many technologies and modes have been developed for biogas production and application. Currently, the most widely used mode is the complete-mixing mesophilic fermentation. Europe, especially Germany, is leading the world in the combined heat and power production (CHP) from biogas. In this paper, updated progress in biogas technologies is reviewed, with focuses on anaerobic microorganisms, bioreactor configurations and process development, biogas production and applications, in which perspectives of biogas as a clean and renewable energy are projected.
Bacteria, Anaerobic
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metabolism
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physiology
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Biodegradation, Environmental
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Bioelectric Energy Sources
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microbiology
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trends
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Biofuels
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microbiology
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Fermentation
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Industrial Microbiology
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trends
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Refuse Disposal
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methods
7.Experiment research of contrast-enhanced ultrasonography in diagnosis of pancreatic laceration
Qing SONG ; Yukun LUO ; Faqin Lü ; Ziyu JIAO ; Qiang LIU ; Tengfei YU ; Yuexiang WANG ; Jie TANG
Chinese Journal of Ultrasonography 2010;19(7):622-624
Objective To approach the diagnostic value of contrast-enhanced ultrasonography(CEUS)for the detection of traumatic laceration of pancreas. Methods Sixty cases of pancreatic traumatic model were made in twelve healthy swines after the animals were anesthetized and laparotomized. Then the conventional ultrasonography(US) and CEUS were performed in each case to diagnose the traumatic region,immediately. The results were compared with surgical findings. Results Among sixty injuries,the detection rate of conventional ultrasonography was 66. 7%,the detection rate of CEUS was 88.3%. Conclusions CEUS shows higher detection rate than conventional US in diagnosing pancreatic laceration,and it also can improve the diagnostic value of ultrasound for the detection of pancreatic laceration.
8.Antibacterial mechanism of silver nanoparticles:a dose-dependent promotion of cell apoptosis
Xiaoxu YU ; Huijing BAO ; Chen XU ; Xue LI ; Zhaoyang LI ; Yuexiang ZHANG ; Yunde LIU ; Dianjun WEI
Chinese Journal of Tissue Engineering Research 2015;(38):6173-6178
BACKGROUND:Silver nanoparticles (AgNPs) show strong antibacterial effect and are not easy to have drug resistance. But the antibacterial mechanisms of AgNPs have not been wel developed.
OBJECTIVE:To explain the antibacterial mechanisms of AgNPs.
METHODS:We investigated the influence of Ti, TiO2 and TiO2 containing AgNPs onEscherichia coliand Staphylococcus aureus by bacterial inhibition ring test. Escherichia coli was cultured in LB liquid medium with 0, 5, 10 mg/L AgNPs. We measured the absorbance value of bacterial culture. DNA gel electrophoresis was used to study the effect of AgNPs onEscherichia coliDNA. Then we researched the character of apoptosis on Escherichia coli by Annexin V and PI staining, using flow cytometry.
RESULTS AND CONCLUSION:The inhibiting effect of Ti and TiO2 onEscherichia coliandStaphylococcus aureus was not obvious. But the inhibition rings of TiO2 containing AgNPs to bacteria appeared. The absorbance value of Escherichia coliculture was reduced whenEscherichia coliwas co-cultured with AgNPs. And this decrease tendency was in direct proportion with AgNPs concentration. AgNPs reduced the amount of DNA of Escherichia coli and this tendency was directly proportional with AgNPs concentration. TheEscherichia coli apoptosis rate induced by AgNPs was increased and this tendency was positively correlated to the AgNPs concentration. These results indicate that AgNPs can induce bacterial apoptosis to influence the growth of bacteria.
9.Application of stochastic frontier analysis in evaluation of technical efficiency and influencing factors of the 2007 Beijing Medicine Development Foundation
Mofei HUO ; Yuexiang WANG ; Zhijiang WANG ; Huanping ZHANG ; Mei SONG ; Lin LIU ; Ruihua SUN
Chinese Journal of Medical Science Research Management 2014;27(6):625-629
This article applied stochastic frontier analysis to estimate the efficiency of the 2007 Beijing Medicine Development Foundation,and analyzed the dominant influencing factors of the performance.The following results were found out..(1) The performance of 2007 Beijing Medicine Development Foundation was good in general,however there was a 23% gap between the actual output and the frontier output.As time passes by,the expected performance will get better.(2) There are large differences existed between various categories of projects and the different levels of institutions and project leaders.The relatively high profile projects,which means large input and more complexity,requires higher level of facility and environmental support,project manager's degree,professional title,while technical efficiency is not obvious for small scale independent innovation projects.
10.Performance evaluation of scientific research projects by DEA
Lin LIU ; Mofei HUO ; Ruihua SUN ; Yuexiang WANG ; Huanping ZHANG ; Zhijiang WANG ; Fan FAN
Chinese Journal of Medical Science Research Management 2014;27(6):630-635
Objective To evaluate the performance of clinical medicine and joint research projects,funded by Capital Medical Research Fund.Method Data of clinical medicine and joint research projects were obtained from the project of Data analysis and evaluation of Capital Medical Development Scientific Research Fund.Out puts include published papers,undergraduate textbooks,prize,patents,students' trainingsnew techniques and follow-up projects; Each project is considered as an evaluation unit,the grant amount as input indicator.Then Data Envelopment Analysis (DEA),software MaxDEA 5.2 were used to calculate the relative performance of these projects.Result The rate of recovery of questionnaire was 77.70%.Among 115projects,the average score of new technology,prize obtained and patent are less than other output indexes.15 projects have no output,7 projects reached the effectiveness of DEA.11 projects obtained the pure technology efficiency,20 projects obtained scale efficiency.Conclusion The funding for projects in 2005 and 2007 are within the appropriate amount,while funding for some projects are excessive; certain projects have less outputs in personnel trainings,publications,the follow-up projects,published papers and achievements.In order to improve project performance,the quantity of published papers and personnel trainings has to be increased.