检索结果-南通市图书馆

Synergistic renoprotective effect of a compiled branched-chain amino acids and Cymbopogon schoenanthus extract against experimentally induced oxido-nitrosative renal insult

引用

Asian Pacific Journal of Tropical Medicine 2018年第5期11卷 342-349页

作者： Omar Abdel-Hamed Ahmed-Farid Bosy Azmy Abd el-Motelp Enaam Abdel-mohsen Essa Mohamad Warda Physiology Department National Organization for Drug Control and Research Zoology Department-Faculty of Women for Arts Science and EducationAin Shams University Department of Biochemistry and Chemistry of Nutrition Faculty of Veterinary Medicine Cairo University

Objective: To better investigate the protective role of branched-chain amino acids(BCAAs)and Cymbopogon schoenanthus(CS) extract against the potassium dichromate(PDC)-induced oxido-nitrosative nephrotoxic insult in the experimental rat model. Methods: Thirty male rats were randomly divided into five equal groups: The 1 st group served as control; the 2^(nd)was injected with a single dose of PDC(15 mg/kg b.w i.p.);the 3^(rd), 4^(th), and 5^(th) groups were respectively treated with BCAAs, CS, and their combination for 15 d prior to induction of renal insult via PDC single dose(15 mg/kg b.w s.c.). The experimental period was terminated in all groups 2 d after induction of renal insult. The harvested kdney samples were divided for biochemical assays and histological examination. Results: The PDC-induced nephrotoxic effect caused a depletion of renal oxidative scavengers glutathione, superoxide dismutase with consequent lipo-oxidative cellular membrane deterioration manifested by a rise in malonaldehyde, oxidized glutathione, myeloperoxidase and the concomitant increase in inflammatory response elements tumor necrosis factor α, nitric oxide, and interleukin 1 β.Moreover, the comet assay and increased 8-hydroxy-2-deoxyguanosine proved an accelerated apoptotic DNA fragmentation. These local renal changes were met with global altered blood biochemistry. The BCAAs and CS or their compiled administration showed an ameliorative effect against PDC-induced nephrotoxic in a synergistic pattern. Conclusions: Both BCAAs and CS or their combined administration afford potential competitors against renal insult induced by polyvalent anion pollutants in experimentally studied animals model. As a route for novel drug discovery, further investigation should be attempted to optimize their augmenting reno-protecting potential.

关键词： Branched chain amino acids Cymbopogon schoenanthus Nephrotoxicity Comet assay Rats

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Serologic, endoscopic and pathologic findings in pediatric celiac disease: A single center experience in a low/middle income country

引用

World Journal of Clinical Pediatrics 2022年第3期11卷 295-306页

作者： Hala H Mansour Nabil A mohsen Mortada HF el-Shabrawi Somia M Awad Dalia Abd el-Kareem Department of Pediatrics Faculty of Medicine Kasr Al AinyCairo UniversityCairo 12411Egypt Department of Pathology Cairo UniversityCairo 11562Egypt

BACKGROUND Studies in Africa,Asia,and Latin America are needed to provide a comprehensive picture of the global incidence of celiac disease(CD).AIM To describe the serology,endoscopic and histological findings in typical and atypical presentations of pediatric CD at a tertiary referral hospital in an African low/middle income country(LMIC).METHODS This observational study was conducted on 199 patients with CD from 2010 to *** patients were divided into typical and atypical groups according to the presenting symptoms including 120 and 79 patients ***,upper gastrointestinal endoscopy with duodenal biopsy were performed for patients who had symptoms suggestive of *** severity of the intestinal damage was graded according to the histo-pathologic Marsh-Oberhuber *** Chronic diarrhea was the main intestinal presentation in the typical *** was the most common extraintestinal symptom in both the typical and atypical ***-Oberhuber type 3b and 3c was significantly higher in the seropositive patients with a P value of 0.007.A significant correlation was observed between the histological grade of the biopsied duodenal mucosa and the clinical presentation(P<0.001).Age was significantly higher in the atypical group(P value<0.001).CONCLUSION Although typical CD was observed in 120 patients in this study,the clinical variability of the condition was frequently *** only was a significant predictor for the appearance of atypical ***,CD presentations in LMIC are not different from industrialized countries.

关键词： Typical Atypical celiac disease Celiac serology Marsh-Oberhuber histopathology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applicability and efficacy of a model for prevention of perinatal transmission of hepatitis B virus infection:Single center study in Egypt

引用

World Journal of Gastroenterology 2014年第45期20卷 17075-17083页

作者： Hanaa M el-Karaksy Lamiaa M mohsen Doa'a A Saleh Mona S Hamdy Noha A Yassin Mohamed Farouk Mohamed E Salit Mortada H el-Shabrawi Department of Pediatrics Kasr Al-Ainy School of Medicine Cairo University Department of Community Medicine Kasr AlAiny School of Medicine Cairo University Department of Clinical and Chemical Pathology Kasr Al-Ainy School of Medicine Cairo University Department of Obstetrics and Gynecology Kasr Al-Ainy School of Medicine Cairo University

AIM: To identify possible maternal risk factors for hepatitis B virus (HBV) acquisition and assess the efficacy of immunoprophylaxis given to infants born to hepatitis B virus surface antigen (HBsAg) positive mothers.

关键词： Egypt Hepatitis B virus Hepatitis B virus surface antigen positive mothers Immunoprophylaxis Perinatal transmission

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Optical Ciphering Scheme for Cancellable Speaker Identification System

引用

Computer Systems Science & Engineering 2023年第4期45卷 563-578页

作者： Walid el-Shafai Marwa A.elsayed mohsen A.Rashwan Moawad I.Dessouky Adel S.el-Fishawy Naglaa F.Soliman Amel A.Alhussan Fathi EAbd el-Samie Department of electronics and electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Security Engineering Laboratory Department of Computer SciencePrince Sultan UniversityRiyadh11586Saudi Arabia Department of electronics and Communications Faculty of EngineeringCairo UniversityCairoEgypt Department of Information Technology College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityRiyadh11671Saudi Arabia Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityRiyadhSaudi Arabia

Most current security and authentication systems are based on personal *** security problem is a major issue in the field of biometric *** is due to the use in databases of the original *** biometrics will forever be lost if these databases are *** privacy is the most important goal of cancelable *** order to protect privacy,therefore,cancelable biometrics should be non-invertible in such a way that no information can be inverted from the cancelable biometric templates stored in personal identification/verification *** methodology to achieve non-invertibility is the employment of non-invertible *** work suggests an encryption process for cancellable speaker identification using a hybrid encryption *** system includes the 3D Jigsaw transforms and Fractional Fourier Transform(FrFT).The proposed scheme is compared with the optical Double Random Phase Encoding(DRPE)encryption *** evaluation of simulation results of cancellable biometrics shows that the algorithm proposed is secure,authoritative,and *** encryption and cancelability effects are good and reveal good ***,it introduces recommended security and robustness levels for its utilization for achieving efficient cancellable biometrics systems.

关键词： Cancellable biometrics jigsaw transform FrFT DRPE speaker identification

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Interconnection and damping assignment and Euler-Lagrange passivity-based control of photovoltaic/battery hybrid power source for stand-alone applications

引用

Journal of Zhejiang University-Science C(Computers and electronics) 2011年第9期12卷 774-786页

作者： Ali TOFIGHI mohsen KALANTAR Department of electrical Engineering Pardis BranchIslamic Azad UniversityPardisIran Center of Excellence for Power System Automation and Operation Department of Electrical EngineeringIran University of Science and TechnologyTehranIran

A DC hybrid power source composed of photovoltaic cells as the main power source,Li-ion battery storage as the secondary power source,and power electronic interface,is modeled based on port-controlled Hamiltonian systems and Euler-Lagrange ***,passivity-based controllers are *** asymptotic stability is ensured as *** addition,a power management system is designed to manage power flow between *** and simulation of the proposed hybrid power source is accomplished using MATLAB/*** interest is focused on the comparison of the two passivity-based control methods and their use in hybrid power systems.

关键词： DC hybrid power source Euler-Lagrange (el) equations Interconnection and damping assignment (IDA) Passivity-based control Photovoltaic Li-ion battery

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A new boundary element solution to evaluate the geometric effects of the canyon site on the displacement response spectrum

引用

Earthquake Engineering and Engineering Vibration 2019年第2期18卷 267-284页

作者： Reza Tarinejad mohsen Isari Abbasali Taghavi Ghalesari Department of Civil Engineering University of Tabriz Department of Civil Engineering The University of Texas at El Paso 500 W University Ave.

This paper presents a step-by-step procedure using the three-dimensional boundary element approach to study the behavior of semi-circular canyons under seismic shear waves. The boundary element code TDASC allows utilization for various canyon geometries, evaluation of concurrent seismic waves and calculation of the ground motions on canyons due to an excitation at any arbitrary point of the incident field. Considering the widening ratio of the canyon(including prismatic, semi-prismatic and non-prismatic canyons), wave characteristics(wavelength, dimensionless period, direction) and maximum amplification pattern, the solution was applied to carry out a series of parametric studies. It was shown that canyon form can significantly affect the displacement amplification, especially at the points located on its edges. By increasing the wave dimensionless frequency(η > 1), the amplification pattern becomes more complex. On the basis of the results from a variety of considered cases, a new expression has been presented for the limiting wavelength beyond which the widening of the canyon will not have a major effect on the displacement amplification. To verify the reliability of the proposed approach, the obtained results, expressed in terms of displacement amplitude, were compared with those from the available published literature and a reasonably good agreement was observed.

关键词： canyon boundary element method widening ratio site effect wave scattering amplifi cation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Evaluation of behaviors of earth and rockfill dams during construction and initial impounding using instrumentation data and numerical modeling

引用

Journal of Rock Mechanics and Geotechnical Engineering 2017年第4期9卷 709-725页

作者： Mohammad Rashidi S. mohsen Haeri University of Texas at el Paso El Paso USA Sharif University of Technology Tehran Iran

In this study,the behavior of Gavoshan dam was evaluated during construction and the first impounding.A two-dimensional（2D） numerical analysis was conducted based on a finite difference method on the largest cross-section of the dam using the results of instrument measurements and back *** evaluations will be completed in the case that back analysis is carried out in order to control the degree of the accuracy and the level of confidence of the measured behavior since each of the measurements could be controlled by comparing it to the result obtained from the numerical *** that,by comparing the results of the numerical analysis with the measured values,it is indicated that there is a proper consistency between these two ***,it was observed that the dam performance was suitable regarding the induced pore water pressure,the pore water pressure ratio r;,settlement,induced stresses,arching degree,and hydraulic fracturing probability during the construction and initial impounding *** results demonstrated that the maximum settlement of the core was 238 cm at the end of *** the following 6 years after construction（initial impounding and exploitation period）,the accumulative settlement of the dam was 270 *** is clear that 88% of the total settlement of the dam took place during dam *** reason is that the clay core was smashed in the wet side,*** optimum moisture *** the average curving ratio was 0.64 during dam construction; at the end of the initial impounding,the maximum amount of curving ratio in the upstream was 0.81,and the minimum（critical） amount in the downstream was *** was also concluded that this dam is safe in comparison with the behaviors of other similar dams in the world.

关键词： Earth and rockfill dams Initial impounding Numerical modeling Instrumentation Settlement Pore pressure

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Predictors of renal angioembolization outcome:A retrospective analysis with 148 patients at a tertiary urology institute

引用

Asian Journal of Urology 2022年第2期9卷 103-108页

作者： Hashim Mohamed Farg Mohamed Mohamed elawdy Karim Ali Soliman Mohamed Ali Badawy Ali elsorougy Abdalla Abdelhamid Tarek mohsen Tarek el-Diasty Department of Radiology Urology and Nephrology CentreMansoura UniversityMansouraEgypt Department of Urology Urology and Nephrology CentreMansoura UniversityMansouraEgypt

Objective:The aim of this study was to evaluate the predictor of unsuccessful outcome of renal angioembolization(RAE).Knowing those predictors may help in avoiding unnecessary RAE procedures and their associated side effects,while helping to prepare for an alternate procedure and improving patient's overall ***:A retrospective analysis between January 2006 and December 2018 was performed,and the indications for RAE were classified into post-traumatic,iatrogenic,renal tumors,and *** who underwent RAE prior to nephrectomy were *** tomography angiography was performed in patients with normal renal function and those who had no contrast allergy,otherwise magnetic resonance angiography was *** the purpose of statistical analysis,we stratified patients into two main categories based on the final outcome—successful or ***:Of 180 patients,32 with negative angiography were eliminated,leaving 148 patients;136(91%)had successful outcomes after one or more trials and 12 had unsuccessful *** mean age was 45±15 years,and 105(71%)were *** gender,side of the lesion,presence of hematuria,indication for RAE,nor the type of lesion affected the *** the other hand,renal anatomy with presence of accessory artery was the only predictor to failed RAE(p=0.001).Failed RAE trial was a predictor for nephrectomy as a secondary procedure(p=0.03).Conclusion:No pre-procedural predictors could anticipate the RAE outcome,and different indications can be scheduled to RAE,which is equally *** presence of accessory renal artery on diagnostic angiography is the only factor that may predict the failure of the procedure.

关键词： Angioembolization Renal angioembolization Embolization Renal trauma Outcome

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Follicular Dendritic Cell Sarcoma: A Rare Case Study of Meta-Synchronous Double Primary Cancers Follicular Dendritic Sarcoma and Invasive Breast Cancer

引用

Journal of Cancer Therapy 2022年第6期13卷 331-336页

作者： Emad mohsen Barsoum Sara el Sherif May Gamal Ashour mohsen Samy Barsoum Barsoum Oncology Center (BOC) Giza Egypt Radiation Oncology and Nuclear Medicine Department National Cancer Institute Cairo University Cairo Egypt

Follicular dendritic cell sarcomas (FDC-Sarcoma) are a rare type of tumor. Although most cases (60%) originate in the cervical, abdominal, or axillary lymph nodes, extranodal origin from secondary lymphatic tissue such as the tonsils, Waldeyer’s ring, or MALT is also prevalent (40%). We report a case of cervical FDCS in a 51-year-old female who developed invasive breast cancer during follow-up. We review the presentation and management of this disorder, emphasizing the differential diagnosis. The patient was continuously monitored and has been free of recurrences for ten years. For FDC Sarcoma of the head and neck, this case suggests surgical resection combined with chemotherapy and radiotherapy as a therapeutic option.

关键词： Follicular Dendritic Sarcoma FDCS STS Breast Cancer

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A procedure to predict the precise seismic response of arch dams in time domain using boundary element formulation

引用

Journal of Rock Mechanics and Geotechnical Engineering 2019年第4期11卷 790-803页

作者： Abbasali TaghaviGhalesari mohsen Isari Reza Tarinejad Abdollah Sohrabi-Bidar Center for Transportation Infrastructure Systems University of Texas at El PasoEl PasoTX79968USA Faculty of Civil Engineering University of TabrizTabriz***Iran School of Geology University College of ScienceUniversity of TehranTehran14155-6619Iran

In this context,a new boundary element algorithm based on the time-convoluted traction kernels is employed to evaluate the spatially varying earthquake ground motions of the Pacoima dam in the USA subjected to SH,SV and P incident *** accurate three-dimensional (3D) model of the dam canyon is implemented into the computer code BEMSA to investigate the seismic response of the *** analyses are performed in time domain with a linearly elastic constitutive model for the *** modeling procedure has been validated by the results reported in the existing *** to the results of this study,the response of the dam to earthquake waves is generally influenced by predominant frequency of the incident motion,surface topography,relative distance of observation points,and type of the incident seismic *** the cases considered,the incident SV wave has led to the maximum amplification of incident motions,especially at the left side of the *** results indicate that the proposed procedure can be employed for accurate prediction of a dam response during an earthquake.

关键词： Boundary element method Spatially varying earthquake ground motion Pacoima dam Topography Incident wave

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：