期刊文献+
共找到15篇文章
< 1 >
每页显示 20 50 100
Analysis on Echo Characteristics of Weather Radar of One Hailstorm Process in the First Division
1
作者 Zhou Dasheng Shi Shuqiang Wu Bin 《Meteorological and Environmental Research》 CAS 2017年第2期13-15,共3页
Based on weather radar observation data,development and evolution characteristics of radar intensity echoes PPI and RHI of one ha shooting weather process in the Fifth Regiment of the First Division on May 24,2011 wer... Based on weather radar observation data,development and evolution characteristics of radar intensity echoes PPI and RHI of one ha shooting weather process in the Fifth Regiment of the First Division on May 24,2011 were analyzed. The results showed that local thermal forcin effect was obvious. The Fifth Regiment is close to mountain region,and the supplement of downward cold air from the mountain region was th most direct,and the supplement efficiency was the highest,which was main cause for the hail shooting generated by local severe convective weath er in west area of south Xinjiang. In the hail weather development process,vault( weak echo zone),front suspending echo and echo wall of supe cell on radar echo showed that airflow activity was strong in windstorm,which had an important indication significance for discrimination of ha cloud. The research could provide reference basis for conducting artificial hail suppression and proximity prediction of severe convective weather i reclamation area in the future,and had certain indication significance and better application value. 展开更多
关键词 Thermal FORCING Radar ECHO HAIL SUPPRESSION China
下载PDF
Integrin beta 3-overexpressing mesenchymal stromal cells display enhanced homing and can reduce atherosclerotic plaque
2
作者 Hai-Juan Hu Xue-Ru Xiao +4 位作者 Tong Li De-Min Liu Xue Geng Mei Han Wei Cui 《World Journal of Stem Cells》 SCIE 2023年第9期931-946,共16页
BACKGROUND Umbilical cord(UC)mesenchymal stem cell(MSC)transplantation is a potential therapeutic intervention for atherosclerotic vascular disease.Integrin beta 3(ITGB3)promotes cell migration in several cell types.H... BACKGROUND Umbilical cord(UC)mesenchymal stem cell(MSC)transplantation is a potential therapeutic intervention for atherosclerotic vascular disease.Integrin beta 3(ITGB3)promotes cell migration in several cell types.However,whether ITGBmodified MSCs can migrate to plaque sites in vivo and play an anti-atherosclerotic role remains unclear.AIM To investigate whether ITGB3-overexpressing MSCs(MSCs^(ITGB3))would exhibit improved homing efficacy in atherosclerosis.METHODS UC MSCs were isolated and expanded.Lentiviral vectors encoding ITGB3 or green fluorescent protein(GFP)as control were transfected into MSCs.Sixty male apolipoprotein E-/-mice were acquired from Beijing Vital River Lab Animal Technology Co.,Ltd and fed with a high-fat diet(HFD)for 12 wk to induce the formation of atherosclerotic lesions.These HFD-fed mice were randomly separated into three clusters.GFP-labeled MSCs(MSCs^(GFP))or MSCs^(ITGB3)were transplanted into the mice intravenously via the tail vein.Immunofluorescence staining,Oil red O staining,histological analyses,western blotting,enzymelinked immunosorbent assay,and quantitative real-time polymerase chain reaction were used for the analyses.RESULTS ITGB3 modified MSCs successfully differentiated into the“osteocyte”and“adipocyte”phenotypes and were characterized by positive expression(>91.3%)of CD29,CD73,and CD105 and negative expression(<1.35%)of CD34 and Human Leukocyte Antigen-DR.In a transwell assay,MSCs^(ITGB3)showed significantly faster migration than MSCsGFP.ITGB3 overexpression had no effects on MSC viability,differentiation,and secretion.Immunofluorescence staining revealed that ITGB3 overexpression substantially enhanced the homing of MSCs to plaque sites.Oil red O staining and histological analyses further confirmed the therapeutic effects of MSCs^(ITGB3),significantly reducing the plaque area.Enzyme-linked immunosorbent assay and quantitative real-time polymerase chain reaction revealed that MSC^(ITGB3)transplantation considerably decreased the inflammatory response in pathological tissues by improving the dynamic equilibrium of pro-and anti-inflammatory cytokines.CONCLUSION These results showed that ITGB3 overexpression enhanced the MSC homing ability,providing a potential approach for MSC delivery to plaque sites,thereby optimizing their therapeutic effects. 展开更多
关键词 ATHEROSCLEROSIS Inflammation Integrin beta 3 Mesenchymal stem cells Arg-Gly-Asp structure Umbilical cord
下载PDF
Non-invasive assessment of liver fibrosis in chronic hepatitis B 被引量:20
3
作者 Federica Branchi Clara Benedetta Conti +3 位作者 Alessandra Baccarin Pietro Lampertico Dario Conte Mirella Fraquelli 《World Journal of Gastroenterology》 SCIE CAS 2014年第40期14568-14580,共13页
The goal of this review is to provide a comprehensive picture of the role,clinical applications and future perspectives of the most widely used non-invasive techniques for the evaluation of hepatitis B virus(HBV)infec... The goal of this review is to provide a comprehensive picture of the role,clinical applications and future perspectives of the most widely used non-invasive techniques for the evaluation of hepatitis B virus(HBV)infection.During the past decade many non-invasive methods have been developed to reduce the need for liver biopsy in staging fibrosis and to overcome whenever possible its limitations,mainly:invasiveness,costs,low reproducibility,poor acceptance by patients.Elastographic techniques conceived to assess liver stiffness,in particular transient elastography,and the most commonly used biological markers will be assessed against their respective role and limitations in staging hepatic fibrosis.Recent evidence highlights that both liver stiffness and some bio-chemical markers correlatewith survival and major clinical end-points such as liver decompensation,development of hepatocellular carcinoma and portal hypertension.Thus the non-invasive techniques here discussed can play a major role in the management of patients with chronic HBV-related hepatitis.Given their prognostic value,transient elastography and some bio-chemical markers can be used to better categorize patients with advanced fibrosis and cirrhosis and assign them to different classes of risk for clinically relevant outcomes.Very recent data indicates that the combined measurements of liver and spleen stiffness enable the reliable prediction of portal hypertension and esophageal varices development. 展开更多
关键词 Liver FIBROSIS CIRRHOSIS HEPATITIS B VIRUS Transie
下载PDF
Station 10 lymph node dissections in laparoscopic-assisted spleen-preserving radical gastrectomy for advanced proximal gastric cancer 被引量:6
4
作者 Yong Li Junjiang Wang 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2013年第4期465-467,共3页
D2 gastric resection has been increasingly recognized as the optimal surgical treatment for advanced gastric cancer. Dissection of the station 10 splenic lymph nodes is required in the treatment of advanced proximal g... D2 gastric resection has been increasingly recognized as the optimal surgical treatment for advanced gastric cancer. Dissection of the station 10 splenic lymph nodes is required in the treatment of advanced proximal gastric cancer. Based on vascular anatomy and anatomical plane of fascial space, integrated with our experience in station 10 splenic lymph node dissection in open surgery and proven skills of laparoscopic operation, we have successfully mastered the surgical essentials and technical keypoints in laparoscopic-assisted station 10 lymph node dissection. 展开更多
关键词 淋巴结 腹腔镜 胃癌 手术治疗 切除术 解剖
下载PDF
Individualized hepatocellular carcinoma risk: The challenges for designing successful chemoprevention strategies 被引量:4
5
作者 Cristina Della Corte Alessio Aghemo Massimo Colombo 《World Journal of Gastroenterology》 SCIE CAS 2013年第9期1359-1371,共13页
Hepatocellular carcinoma (HCC) develops in the context of environmental risk factors like chronic viral hepatitis, diabetes and alcohol exposure, often associated to an increased risk of cirrhosis. Antiviral treatment... Hepatocellular carcinoma (HCC) develops in the context of environmental risk factors like chronic viral hepatitis, diabetes and alcohol exposure, often associated to an increased risk of cirrhosis. Antiviral treatments that are effective to counteract hepatitis B and C may also attenuate the risk of tumor development. However, since hepatitis B-related carcinogenesis is promoted independently of the onset of cirrhosis, such antiviral treatments as nucleo(t)side analogs can promote regression of cirrhosis, prevent clinical decompensation and variceal bleeding but not HCC. This means that in successfully treated patients with cirrhosis, HCC is often the consequence of their extended survival. In hepatitis C patients, a sustained virological response to interferon-based therapies can reduce the rate of HCC development, even in patients with cirrhosis who experience histological regression of their liver disease. Future therapies aimed at this endpoint in at risk populations should take into consideration pretreatment patient stratification for host, viral and environmental risk factors. In this context the recent discovery of single nucleotide polymorphisms involved in the immune system function and tumorigenesis, might permit enrollment of populations of patients enriched with HCC risk factors for targeted chemopreventive therapies. This could finally pave the way to personalized algorithms, as already seen in the diagnosis and treatment schemes for chemoprevention. 展开更多
关键词 Hepatocellular carcinoma HEPATITIS C VIRUS PEGINTERFERON HEPATITIS B VIRUS Human IMMUNODEFICIENCY VIRUS NUCLEOSIDE analogues Sustained virological response Single NUCLEOTIDE polymorphisms
下载PDF
Rifaximin for the prevention of spontaneous bacterial peritonitis 被引量:2
6
作者 Georgios N Kalambokis Athanasia Mouzaki +1 位作者 Maria Rodi Epameinondas V Tsianos 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第14期1700-1702,共3页
According to a review article by Biecker et al published in a previous issue of World Journal of Gastroenterology in March 2011,intestinal decontamination with norfloxacin remains the mainstay of primary prophylaxis o... According to a review article by Biecker et al published in a previous issue of World Journal of Gastroenterology in March 2011,intestinal decontamination with norfloxacin remains the mainstay of primary prophylaxis of spontaneous bacterial peritonitis(SBP) at the expense of development of quinolone-resistant bacteria after long-term use.In our research,the administration of a 4-wk regimen with rifaximin 1200 mg/d reduced significantly the ascitic neutrophil count in cirrhotic patients with sterile ascites in line with a significant decrease in plasma endotoxin levels.Our observations concur with recent findings,showing a significantly reduced 5-year probability of SBP in cirrhotic patients taking rifaximin. 展开更多
关键词 细菌性 腹膜炎 预防 喹诺酮类 诺氟沙星 胃肠病学 细胞计数 调查结果
下载PDF
Study on Alkaloids in Fructus Hordei Germinatus 被引量:2
7
作者 Jianheng GUO Guozhu LI +1 位作者 Qingyan MENG Jizhong ZHANG 《Medicinal Plant》 CAS 2018年第6期19-22,共4页
[Objectives]To isolate and analyze alkaloids in Fructus Hordei Germinatus.[Methods]The alkaloids in the Fructus Hordei Germinatus were extracted by ultrasonic technology,and analyzed by the ultra-performance liquid ch... [Objectives]To isolate and analyze alkaloids in Fructus Hordei Germinatus.[Methods]The alkaloids in the Fructus Hordei Germinatus were extracted by ultrasonic technology,and analyzed by the ultra-performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS) technique.[Results] According to the mass spectrometry information,compared with the literature reports,the possible structures of seven alkaloids in the Fructus Hordei Germinatus could be inferred.Compounds 1,2 and 3 were organic amine alkaloids,respectively tyramine and N-methyltyramine,hordenine,compounds 4,5,6 and 7 were indole alkaloids,respectively,tryptamine,gramine,harmine,and bufotenidine.The alkaloids in the Fructus Hordei Germinatus were separated by preparative high performance liquid chromatography(p HPLC) technique,a compound was obtained and identified by UPLC-MS/MS and nuclear magnetic resonance(NMR) technique as hordenine.[Conclusions]This experiment is expected to lay a foundation for the development of alkaloids in the Fructus Hordei Germinatus. 展开更多
关键词 Fructus Hordei Germinatus ALKALOIDS Ultra HIGH PERFORMANCE LIQUID chromatography(UPLC) Mass spectrometer(MS) PREPARATIVE HIGH PERFORMANCE LIQUID chromatography(pHPLC)
下载PDF
Two-dimensional gel electrophoresis and surface-enhanced laser desorption ionization-time of flight-mass spectrometry for detection of protein expression profiles in the hippocampus following closed brain injury 被引量:2
8
作者 Qingming Shu Zhiqiang Li +3 位作者 Shuwang Yang Lingzhi Li Xiao Bai Yongliang Zhang 《Neural Regeneration Research》 SCIE CAS CSCD 2010年第23期1795-1801,共7页
Gene expression profile changes in brain regions following traumatic brain injury at the gene level cannot sufficiently elucidate gene expression time,expression amount,protein post-translational processing or modific... Gene expression profile changes in brain regions following traumatic brain injury at the gene level cannot sufficiently elucidate gene expression time,expression amount,protein post-translational processing or modification.Therefore,it is necessary to quantitatively analyze the gene expression profile using proteomic techniques.In the present study,we established a rat model of closed brain injury using Marmarou's weight-drop device,and investigated hippocampal differential protein expression using two-dimensional gel electrophoresis and surface-enhanced laser desorption ionization-time of flight-mass spectrometry.A total of 364 protein peaks were detected on weak cation exchange-2 protein chips,including 37 differential protein peaks.345 protein peaks were detected on immobilized metal affinity capture arrays-Cu,including 12 differential protein peaks Further examination of these differential proteins revealed that glucose-regulated protein and proteasome subunit alpha type 3 expression were significantly upregulated post-injury.These results indicate that brain injury can alter protein expression in the hippocampus,and that glucose-regulated protein and proteasome subunit alpha type 3 are closely associated with the occurrence and development of traumatic brain injury. 展开更多
关键词 蛋白质组技术 激光解吸电离 双向凝胶电泳 颅脑损伤 飞行质谱 表面增强 检测法 表达谱
下载PDF
Advances in the mechanism of bile acids in liver regeneration
9
作者 Sheng-Lan Zeng Na Wang +4 位作者 Rong-Zhen Zhang Cong Wu Ting-Shuai Wang Ying-Yu Le De-Wen Mao 《Journal of Hainan Medical University》 2022年第8期66-70,共5页
Hepatocytes can divide rapidly and proliferate in the absence of inflammation and fibroplasia in the damaged or partial hepatectomy(PHx)of the liver,which is essential for the recovery of related patients.Recent studi... Hepatocytes can divide rapidly and proliferate in the absence of inflammation and fibroplasia in the damaged or partial hepatectomy(PHx)of the liver,which is essential for the recovery of related patients.Recent studies have found that bile acids(BA)play an important role in the process of liver regeneration.In the early stages of PHx,bile acid overload occurs,and liver injury is aggravated by loading.Later bile acids can induce protective and proliferative responses in the liver and promote liver regeneration.In this paper,we summarize the negative effects after bile acid overload and its positive role as a signaling molecule involved in related signaling pathways on liver regeneration,including protection of the liver and promotion of liver regeneration,and its double-edswordged"in Liver regeneration.This provides a theoretical basis for subsequent in-depth study of the mechanism and benefit avoidance in clinical treatment. 展开更多
关键词 Liver regeneration Bile acids FXR Cell proliferation TGR5
下载PDF
Key Techniques of Stereoscopic and Efficient Cultivation of Strawberry in Southern Xinjiang
10
作者 Zehui LIU Yong SHUI +4 位作者 Jianyong XU Qiang CHEN Shujuan REN Ping ZHANG Xian CAO 《Asian Agricultural Research》 2022年第7期39-42,46,共5页
Strawberry is rich in nutrition,which is the only fresh fruit in winter in southern Xinjiang,with good prospect of stereoscopic cultivation.In this paper,the key techniques such as stereoscopic cultivation pattern,the... Strawberry is rich in nutrition,which is the only fresh fruit in winter in southern Xinjiang,with good prospect of stereoscopic cultivation.In this paper,the key techniques such as stereoscopic cultivation pattern,the combination of different modes,the substrate of strawberry cultivation,the drip irrigation system,the formula of nutrient solution,the selection of varieties,the propagation of seed and seedling,the induction of flower buds,the planting and management of plants,and the green control of diseases and insect pests are introduced,and greenhouse space and solar energy are fully used to maximize the economic and social benefits of strawberry farming combined with tourism.The results will further promote the quality and efficiency of strawberry industry in southern Xinjiang,and provide a reference for strawberry growers. 展开更多
关键词 STRAWBERRY Stereoscopic cultivation Pattern combination Seed and seedlings breeding Flower bud induction Plant management Green prevention and control
下载PDF
Boceprevir or telaprevir in hepatitis C virus chronic infection:The Italian real life experience 被引量:1
11
作者 Antonio Ascione Luigi Elio Adinolfi +71 位作者 Pietro Amoroso Angelo Andriulli Orlando Armignacco Tiziana Ascione Sergio Babudieri Giorgio Barbarini Michele Brogna Francesco Cesario Vincenzo Citro Ernesto Claar Raffaele Cozzolongo Giuseppe D’Adamo Emilio D’Amico Pellegrino Dattolo Massimo De Luca Vincenzo De Maria Massimo De Siena Giuseppe De Vita Antonio Di Giacomo Rosanna De Marco Giorgio De Stefano Giulio De Stefano Sebastiano Di Salvo Raffaele Di Sarno Nunzia Farella Laura Felicioni Basilio Fimiani Luca Fontanella Giuseppe Foti Caterina Furlan Francesca Giancotti Giancarlo Giolitto Tiziana Gravina Barbara Guerrera Roberto Gulminetti Angelo Iacobellis Michele Imparato Angelo Iodice Vincenzo Iovinella Antonio Izzi Alfonso Liberti Pietro Leo Gennaro Lettieri Ileana Luppino Aldo Marrone Ettore Mazzoni Vincenzo Messina Roberto Monarca Vincenzo Narciso Lorenzo Nosotti Adriano Maria Pellicelli Alessandro Perrella Guido Piai Antonio Picardi Paola Pierri Grazia Pietromatera Francesco Resta Luca Rinaldi Mario Romano Angelo Rossini Maurizio Russello Grazia Russo Rodolfo Sacco Vincenzo Sangiovanni Antonio Schiano Antonio Sciambra Gaetano Scifo Filomena Simeone Annarita Sullo Pierluigi Tarquini Paolo Tundo Alfredo Vallone 《World Journal of Hepatology》 CAS 2016年第22期949-956,共8页
AIM: To check the safety and efficacy of boceprevir/telaprevir with peginterferon/ribavirin for hepatitis C virus(HCV) genotype 1 in the real-world settings. METHODS: This study was a non-randomized, observational, pr... AIM: To check the safety and efficacy of boceprevir/telaprevir with peginterferon/ribavirin for hepatitis C virus(HCV) genotype 1 in the real-world settings. METHODS: This study was a non-randomized, observational, prospective, multicenter. This study involved 47 centers in Italy. A database was prepared for the homogenous collection of the data, was used by all of the centers for data collection, and was updated continuously. All of the patients enrolled in this study were older than 18 years of age and were diagnosed with chronic infection due to HCV genotype 1. The HCV RNA testing was performed using COBAS-Taq Man2.0(Roche, LLQ 25 IU/m L). RESULTS: All consecutively treated patients were included. Forty-seven centers enrolled 834 patients as follows: Male 64%; median age 57(range 18-78), of whom 18.3% were over 65; mean body mass index 25.6(range 16-39); genotype 1b(79.4%); diagnosis of cirrhosis(38.2%); and fibrosis F3/4(71.2%). The following drugs were used: Telaprevir(66.2%) and PEG-IFN-alpha2a(67.6%). Patients were na?ve(24.4%), relapsers(30.5%), partial responders(14.8%) and null responders(30.3%). Overall, adverse events(AEs) occurred in 617 patients(73.9%) during the treatment. Anemia was the most frequent AE(52.9% of cases), especially in cirrhotic. The therapy was stopped for 14.6% of the patients because of adverse events or virological failure(15%). Sustained virological response was achieved in 62.7% of the cases, but was 43.8% in cirrhotic patients over 65 years of age. CONCLUSION: In everyday practice, triple therapy is safe but has moderate efficacy, especially for patients over 65 years of age, with advanced fibrosis, nonresponders to peginterferon + ribavirin. 展开更多
关键词 BOCEPREVIR TELAPREVIR Chronic hepatitis ANTIVIRAL therapy PEG-INTERFERON RIBAVIRIN
下载PDF
Use of Selected Types of Crime Analysis in Modern Criminological Science:Experience of Ukraine and the World
12
作者 Vasyl Topchii Oksana Topchii +2 位作者 Maksym Zabarniy Nataliіa Karpenko Ihor Hrytsiuk 《Journal of Forensic Science and Medicine》 2023年第1期44-52,共9页
Background:In order to effectively prevent crime,the law enforcement agencies in Ukraine use criminological forecasting,through which it is possible to study and identify the main problems of crime.Aims and Objectives... Background:In order to effectively prevent crime,the law enforcement agencies in Ukraine use criminological forecasting,through which it is possible to study and identify the main problems of crime.Aims and Objectives:The article aims to consider the modern criminological science in Ukraine and the world within the framework of criminological analysis used,determine the advantages and disadvantages of the selected types of criminological analysis,and substantiate the feasibility of investigating latent crimes.Materials and Methods:In the course of the study,the following general scientific and special research methods were used:formal-logical,system,statistical,and synthesis method.Results:The authors conclude by the conducted analytical study that such criminological analyses as regression,factorial,and monitoring are the most widespread at the present stage of criminological science development.These methods of criminological analysis were examined,their advantages and disadvantages were determined,and recommendations for their application in criminological science were given.It was established that the regression analysis is not found in many criminological studies,but the increase in crime rates both in Ukraine and in the world has led to the update in this direction.Conclusion:It has been proved that monitoring is the most frequent type of criminological analysis.This method is often used in criminological research to analyze statistical reporting publicly available to law enforcement agencies.The study has found it is advisable to investigate latent crime in addition to statistical indicators since it is several times higher than the level of officially registered criminal offenses in the country. 展开更多
关键词 Correlation analysis criminological analysis criminological monitoring factor analysis multifactorial analysis
原文传递
Protection of SA14-14-2 live attenuated Japanese encephalitis vaccine against the wild-type JE viruses 被引量:11
13
作者 贾丽丽 王志伟 俞永新 《Chinese Medical Journal》 SCIE CAS CSCD 2003年第6期941-943,共3页
ObjectiveTo explore on the immunity of live attenuated Japanese Encephalitis (JE) vaccine(SA14-14-2) to different wild JE virus (JEV) strains. MethodsThe neutralizing effect of the vaccine against different wild JE vi... ObjectiveTo explore on the immunity of live attenuated Japanese Encephalitis (JE) vaccine(SA14-14-2) to different wild JE virus (JEV) strains. MethodsThe neutralizing effect of the vaccine against different wild JE virus strains was detected by plaque reduction neutralization test (PRNT), and the immunogenicity was studied on mice by vaccination -challenge protection test. In the PRNT , pooled sera from vaccinated human were tested against 10 strains of JEV , one isolated in Taiwan and 9 from other Asian countries.In the vaccination challenge test, mice received one dose of the live vaccine subcutaneously and were challenged intraperitoneally 14 days later against 22 JEV virus strains, 11 were isolated in China and the other 11 from Tailand, Vietnahailam, Indonesia, India, Philippines and Japan. ResultsThe protection rates to all the 22 challenge virus were 90%-100% when 340 PFU/0.1 ml vaccinate virus was administered. The neutralizing effect showed that all the JEV isolates many have neutralized by the sera. ConclusionSA14-14-2 live attenuated prepared with strain SA14-14-2 is broadly immunogenic and may have effective protection against in Asian JE affected countries. 展开更多
关键词 日本脑炎 疫苗 野生型JE病毒 SA14-14-2
原文传递
Factors influencing outcomes of intra-aortic balloon counterpulsation in elderly patients 被引量:5
14
作者 WU Xue-ping LIU Hong-wei ZHAO Xiao-ning CAO Jian ZHU Ping 《Chinese Medical Journal》 SCIE CAS CSCD 2013年第14期2632-2635,共4页
关键词 影响因素 主动脉 患者 球囊 老年 肺部感染 心脏疾病 并发症
原文传递
SARS-CoV-2 and liver damage:a possible pathogenetic link
15
作者 Ludovico Abenavoli Ivan Gentile +1 位作者 Alberto Enrico Maraolo Francesco Negro 《Hepatobiliary Surgery and Nutrition》 SCIE 2020年第3期322-324,共3页
On December 31,2019,the World Health Organization(WHO)China Country Office,was informed of pneumonia cases of unknown etiology detected in Wuhan,a city of Hubei Province in China.
关键词 China. WUHAN DAMAGE
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部