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MicroRNA signature in patients with hepatocellular carcinoma associated with type 2 diabetes

World Journal of Gastroenterology 2019年第42期25卷 6322-6341页

作者： Moustafa Nouh Elemeery marwa Anwar Mohamed marwa ahmed madkour Mohammed Mohammed Shamseya Noha Mahmoud Issa ahmed Noah Badr Doaa ahmed Ghareeb Cheol-Ho Pan Département de Neurosciences CRCHUMUniversitéde MontréalMontréalQuebec H2X 3E4Canada Medical Biotechnology Laboratory Genetic Engineering and Biotechnology Research DivisionNational Research CentreCairo 12622Egypt Natural Product Informatics Research Center KIST Gangneung Institute of Natural ProductsGangneung 25451South Korea Division of Bio-Medical Science and Technology KIST SchoolKorea University of Science and TechnologySeoul 02792South Korea Department of Chemical Pathology Medical Research InstituteAlexandria UniversityAlexandria 21511Egypt Experimental and Clinical Internal Medicine Department Medical Research InstituteAlexandria UniversityAlexandria 21511Egypt Human Genetics Department Medical Research InstituteAlexandria UniversityAlexandria 21511Egypt Food Toxicology and Contaminates Department National Research CentreDokkiCairo 12622Egypt Bioscreening and preclinical trial lab Biochemistry DepartmentFaculty of ScienceAlexandria UniversityAlexandria 12522Egypt Pharmaceutical and fermentation industries development center the city of scientific research and technological applicationsAlexandria 26411Egypt

BACKGROUND Nonalcoholic steatohepatitis-related cirrhosis is one of the liver complications in type 2 diabetes mellitus(T2DM)and reported to be a risk factor for developing hepatocellular carcinoma(HCC).A reliable screening biomarker of liver cirrhosis(LC)and HCC among T2DM patients is important to reduce the morbidity and mortality of this ***(miRNA)is considered a key player in HCC and T2DM,and it might be a hidden culprit in diabetes-associated HCC,making it a promising reliable prognostic *** To investigate the signature of serum miRNAs as early biomarkers for the screening of HCC among diabetic *** Expression profiles of miRNAs in serum samples of diabetic LC and diabetic HCC patients were assessed using Illumina sequencing;then,RT-qPCR was used to validate significantly altered miRNAs between the two *** miRNAs were tested in serum samples of 200 T2DM patients,270 LC patients,200 HCC patients,and 225 healthy control ***,receiver operating characteristic(ROC)analysis,with area under the curve(AUC),was performed to assess the diagnostic performance of the screened miRNAs for discriminating HCC from LC and nonmalignant patients(LC+T2DM).RESULTS Expression of the sequenced miRNAs in serum was different in HCC vs LCpositive T2DM *** miRNAs(miR-34a,miR-221)were significantly upregulated and five miRNAs(miR-16,miR-23-3p,miR-122-5p,miR-198,miR-199a-3p)were significantly down-regulated in HCC compared to LC *** of ROC curve demonstrated that the combination of these seven miRNAs can be used as a reliable biomarker for detection of HCC in diabetic patients,as it could identify HCC with high diagnostic accuracy in diabetic LC patients(AUC=0.993)and in diabetic nonmalignant patients(AUC=0.961).CONCLUSION This study validates a panel of serum miRNAs that can be used as a reliable noninvasive screening biomarker of HCC among T2DM cirrhotic and noncirrhotic *** study recommends furt

关键词： MicroRNA Hepatocellular carcinoma Type 2 diabetes Nonalcoholic fatty liver disease

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Association of XbaI GLUT1 Polymorphism with Susceptibility to Type 2 Diabetes Mellitus and Diabetic Nephropathy

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American Journal of Molecular Biology 2016年第2期6卷 71-78页

作者： Ragaa Abdelkader Ramadan Ahmad Mohamed Zaki Gehan Mahmoud Magour Moyassar Ahmad Zaki Sarah ahmed Aglan marwa ahmed madkour Mohammed Mohammed Shamseya Chemical Pathology Department Medical Research Institute Alexandria University Alexandria Egypt Clinical and Experimental Internal Medicine Department Medical Research Institute Alexandria University Alexandria Egypt

Objectives: Diabetic nephropathy (DN) is one of the chronic microangiopathic complications of type 2 diabetes (T2DM) and has become the most frequent cause of end-stage renal disease. The XbaI polymorphism in the glucose transporter (GLUT1) has been suggested in the development of DN. We examined the association between XbaI polymorphism of GLUT1 and susceptibility to T2DM and development of DN. Methods: The study included 227 T2DM patients divided into 107 without DN (DM ? DN) and 120 with DN (DM + DN), in addition to 100 apparently healthy controls. Genotyping was done by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Results: The GLUT1 XbaI T allele was associated with increased susceptibility to T2DM, when comparing the healthy controls to the whole diabetic group, odds ratio (OR) = 1.899, 95% confidence interval (CI) (1.149 - 3.136), p = 0.011. This association was also significant between healthy controls and DM ? DN OR = 1.997 (1.079 - 3.699), p = 0.026 as well as between healthy controls and DM + DN OR = 1.818 (1.016 - 3.253), p = 0.042. However there was no significant association of XbaI polymorphism with DN when comparing DM ? DN to DM + DN OR = 0.910 (0.474 - 1.747), p = 0.777. Conclusion: XbaI T allele is associated with increased susceptibility to T2DM, but not to development of DN. Further studies are needed to replicate such findings.

关键词： Type 2 Diabetes Mellitus Diabetic Nephropathy Glucose Transporter 1 XbaI Polymorphism

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The C161T Polymorphism in Peroxisome Proliferator-Activated Receptor ɣ2, but Not Pro12Ala, Is Associated with Diabetic Retinopathy in Type 2 Diabetes Mellitus in an Egyptian Population

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Journal of Diabetes Mellitus 2016年第1期6卷 1-9页

作者： Ragaa Abelkader Ramadan Moyassar Ahmad Zaki Rania Mohamed El Sharkawy Lubna Mohamed Desouky marwa ahmed madkour Karim Mahmoud Nabil Mohamed Kamel Chemical Pathology Department Medical Research Institute Alexandria University Alexandria Egypt Department of Human Genetics Medical Research Institute Alexandria University Alexandria Egypt Clinical and Experimental Internal Medicine Department Medical Research Institute Alexandria University Alexandria Egypt Department of Ophthalmology Faculty of Medicine Alexandria University Alexandria Egypt

Objectives: Diabetic retinopathy (DR) is one of the most common microvascular complications of type 2 diabetes mellitus (T2DM). It is multifactorial with the contribution of multiple genetic factors. We questioned the association of polymorphisms in the peroxisome proliferator-activated receptor ?2 (PPAR?2) gene (Pro12Ala and C161T) with DR in an Egyptian population. Methods: This case control study included one hundred healthy individuals and 252 T2DM among them 122 with DR and 130 without DR. Genotyping was done by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Results: The Pro12Ala Ala allele was associated with decreased risk of DR with an odds ratio (OR) of 0.484, 95% confidence interval (CI) (0.254 - 0.920), and a p value = 0.024. The C161T T allele was associated with increased risk of DR with OR = 2.593, 95% CI (1.672 - 4.020), p 1c) in multivariate regression analysis only C161T was associated with increased risk of DR with OR = 3.479, 95% CI (1.907 - 6.346), p 1c was higher in Pro/Pro genotype when compared to those with Ala/Ala and Pro/Ala genotypes. Conclusion: We report that T allele of C161T increased risk of DR in the studied population. Further studies are warranted to investigate functional implications of polymorphisms of the PPAR-? gene in DR development.

关键词： Type 2 Diabetes Mellitus Diabetic Retinopathy Polymorphism PPAR០ Pro12Ala C161T

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Adversarial Neural Network Classifiers for COVID-19 Diagnosis in Ultrasound Images

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Computers, Materials & Continua 2022年第1期70卷 1683-1697页

作者： Mohamed Esmail Karar marwa ahmed Shouman Claire Chalopin Department of Industrial Electronics and Control Engineering Faculty of Electronic Engineering(FEE)Menoufia UniversityMenouf32952Egypt Department of Computer Engineering and Networks College of Computing and Information TechnologyShaqra UniversityShaqra11961Saudi Arabia Department of Computer Science and Engineering Faculty of Electronic Engineering(FEE)Menoufia UniversityMenouf32952Egypt Innovation Center for Computer Assisted Surgery(ICCAS) Universit鋞LeipzigLeipzig04103Germany

The novel Coronavirus disease 2019(COVID-19)pandemic has begun in China and is still affecting thousands of patient livesworldwide *** X-ray and Computed Tomography are the gold standardmedical imaging modalities for diagnosing potentially infected COVID-19 cases,applying Ultrasound(US)imaging technique to accomplish this crucial diagnosing task has attracted many physicians *** this article,we propose two modified deep learning classifiers to identify COVID-19 and pneumonia diseases in US images,based on generative adversarial neural networks(GANs).The proposed image classifiers are a semi-supervised GAN and a modifiedGANwith auxiliary *** one includes a modified discriminator to identify the class of the US image using semi-supervised learning technique,keeping its main function of defining the“realness”of tested *** tests have been successfully conducted on public dataset of US images acquired with a convex US *** study demonstrated the feasibility of using chest US images with two GAN classifiers as a new radiological tool for clinical check of COVID-19 *** results of our proposed GAN models showed that high accuracy values above 91.0%were obtained under different sizes of limited training data,outperforming other deep learning-based methods,such as transfer learning models in the recent ***,the clinical implementation of our computer-aided diagnosis of US-COVID-19 is the future work of this study.

关键词： COVID-19 medical imaging machine learning applications adversarial neural networks ultrasound

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Validation of a serum microRNA panel as biomarkers for early diagnosis of hepatocellular carcinoma post-hepatitis C infection in Egyptian patients

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World Journal of Gastroenterology 2017年第21期23卷 3864-3875页

作者： Moustafa Nouh Elemeery ahmed Noah Badr marwa Anwar Mohamed Doaa ahmed Ghareeb Medical Biotechnology Laboratory Genetic Engineering and Biotechnology Research DivisionNational Research Centre Toxicology and Food Contaminant Laboratory Food Science and Nutrition Research DivisionNational Research Centre Department of Chemical Pathology Medical Research InstituteAlexandria University Molecular Biology Laboratory Faculty of ScienceAlexandria University

AIM To investigate the prospective importance of serum micro(mi)RNAs(mi R-125 b, mi R-138 b, mi R-1269, mi R-214-5p, mi R-494, mi R375 and mi R-145) as early biomarkers for the diagnosis of hepatitis C virus(HCV)-related hepatocellular carcinoma(HCC).METHODS Two-hundred and fifty HCV4 a patients, 224 HCV4 aHCC patients, and 84 healthy controls were enrolled in the study. Expression levels of mi R214-5p, mi R-125 b, mi R-1269 and mi R-375 were quantified using quantitative real-time *** Expression of the selected mi RNAs in serum wassignificantly lower in HCC patients than in the healthy controls, except for mi R-1269 and mi R-494. There was a significant difference between HCC and HCV patients, in particular for HCC and late stage fibrosis, rather than HCV patients and early fibrosis. It is obvious that mi R-1269 was significantly upregulated in HCC cases compared to hepatic fibrosis cases. Each mi RNA can show HCC progression. Multivariate logistic regression analysis indicated that the tested panel of mi RNAs(mi R214-5p, mi R-125 b, mi R-1269 and mi R-375) represent accurate and specific indictors of HCC *** This study presents a panel of mi RNAs with strong power as putative diagnostic and prognostic biomarkers for HCV-induced HCC. Moreover, mi R-214-5p and mi R-1269 could be considered as early biomarkers for tracking the progress of liver fibrosis to HCC.

关键词： Micro RNA Hepatocellular carcinoma Fibrosis progression

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β-arrestin-2 predicts the clinical response to β-blockers in cirrhotic portal hypertension patients: A prospective study

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World Journal of Hepatology 2022年第2期14卷 429-441页

作者： Sameh A Lashen Mohammed M Shamseya marwa A madkour Radwa M Abdel Salam Sanaa S Mostafa Division of Hepatology and Gastroenterology Faculty of MedicineAlexandria UniversityAlexandria 21521Egypt Department of Experimental and Clinical Internal Medicine Medical Research InstituteAlexandria 21561Egypt Department of Pathology Medical Research InstituteAlexandria UniversityAlexandria 21561Egypt

BACKGROUND Portal hypertension,a common complication associated with liver cirrhosis,can result in variceal bleeding,which greatly impacts patient ***,β-arrestin-2 has been shown to predict the acute hemodynamic response to nonselectiveβ-blocker therapy for cirrhotic portal ***,more data is needed on the long-term effects of and changes inβ-arrestin-2 following nonselectiveβ-blocker *** To investigate the expression and role ofβ-Arrestin-2 in predicting the long-term response to nonselectiveβ-blockers in cirrhotic portal hypertensive *** We prospectively enrolled 91 treatment-naïve patients with cirrhotic portal *** clinical and laboratory data were *** was performed for grading and treating varices and obtaining gastric antral *** measured the serum and antral expression ofβ-arrestin-2 and obtained Doppler measurement of the portal vein congestion *** with nonselectiveβ-blockers was then *** patients were followed up for 18 mo,after which they have undergone a repeat antral biopsy and re-evaluation of the portal vein congestion *** A higher serum level and antral expression ofβ-arrestin-2 was associated with longer bleedingfree intervals,greater reduction in the portal vein congestion index,and improved grade of *** patients with a lowβ-arrestin-2 expression,17.6%were nonselectiveβ-blocker responders,whereas,among those with high expression,95.1%were responders(P<0.001).A serumβ-arrestin-2 value≥2.23 ng/mL was associated with a lower likelihood of variceal bleeding(90%sensitivity and 71%specificity).β-arrestin-2 expression significantly decreased after nonselectiveβ-blocker ***β-arrestin-2 expression in cirrhotic portal hypertension predicts the clinical response to long-term nonselectiveβ-blocker ***β-arrestin-2 is a potential noninvasive biomarker for selecting the candidate patients for nonselectiveβ-bl

关键词： β-arrestin-2 Portal hypertension Variceal bleeding Nonselective beta-blockers Portal congestion index Variceal ligation

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From appropriation to formal intervention:An analytical framework for understanding the appropriation process in residual spaces of Cairo

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Frontiers of Architectural Research 2019年第2期8卷 201-214页

作者： Doha Eissa marwa Hassan Khalil Aly Gabr ahmed Abdelghaffar Architecture Department Cairo UniversityCairoEgypt Department of Architectural Engineering and Environmental Design Arab Academy for Science and Technology & Maritime TransportCairoEgypt

The paper addresses the issue of how residual spaces are intervened upon through formal and informal *** argues that a profound understanding for the dynamics of informal interventions,denoted by appropriation,could enhance the performance of their formal *** a qualitative approach,the paper departs from Lefebvre's unitary theory of space and arrives at an analytical framework that helps to understand the appropriation processes in residual ***,then,attempts to empirically challenge the applicability of this framework through analyzing a Cairene residual space that has undergone two cycles of intervention:a formal and informal one.

关键词： Appropriation Residual spaces Socio-spatial approach Urban regeneration Unitary theory of space

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Novel synthesis of stabilized Bi_(1-x-y)Gd_(x)Dy_(y)O_(1.5) solid electrolytes with enhanced conductivity for intermediate temperature solid oxide fuel cells(SOFCs)

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Journal of Rare Earths 2024年第10期42卷 1903-1911页

作者： ahmed H.Ibrahim Yehia M.Abbas H.A.Ayoub marwa H.Ali Mustafa Aldoori Materials Science Laboratory Physics DepartmentFaculty of ScienceSuez Canal University41522IsmailiaEgypt Ministry of Higher Education and Scientific Research Aliraqia University10011BaghdadIraq

Herein,we report the synthesis of a Dy-Gd co-doped cubic phase-stabilized Bi_(2)O_(3) solid electrolyte system via solid-state processing under atmospheric *** with Dy^(3+) and Gd^(3+) has been observed to significantly enhance the densification process during sintering for stabilization purposes,thereby improving the electrical properties of δ-Bi_(2)O_(3)-type *** synthesized ceramics were characterized using X-ray diffraction(XRD),field emission scanning electron microscopy-energy dispersive X-ray spectroscopy(FESEM-EDX),thermal gravimetry/differential thermal analysis(TG/DTA),and the four-point probe technique(4PPT).XRD analysis reveals that the samples Bi_(1-x-y)Gd_(x)Dy_(y)O_(1.5)(y=0.05/x=0.05,0.10,0,15,and 0.20,and x=0.05/y=0.10,0.15,and 0.20) exhibit a stable face-centered cubic δ-phase and a mixed-phase crystallographic *** XRD analysis of the stabilized δ-phase suggests that the prepared oxides show a face-centered cubic(FCC) structure with a space group of *** micrographs reveal that the composition Bi_(0.90)Gd_(0.05)Dy_(0.05)O_(1.5) has no significant ***,an evident increase in the pore formation is observed as the amount of Gd_(2)O_(3) increases until it reaches 20%.This finding suggests that dense pellets are formed during the sintering process at 900-1000℃.The DTA analyses were performed to verify the phase stability,which agrees with the XRD *** electrochemical performance of the synthesized Dy-Gd co-doped Bi_(2)O_(3)solid electrolyte system was evaluated and analyzed in detail by using the electrochemical impedance spectroscopy(EIS) technique,Based on EIS and conductivity measurements,Bi_(0.75)Gd_(0.20)Dy_(0.05)O_(1.5) exhibits the lowest activation energy of 0.519 eV and the highest conductivity value of 0.398 S/cm at 627℃compared to the other samples;this composition can be used as a solid electrolyte for intermediatetemperature solid oxide fuel cells(SOFCs).

关键词： Solid oxide fuel cells(SOFCs) Rare earths Solid-state processing Rietveld Fast Fourier transform(FFT) Electrochemical impedance spectroscopy(EIS)

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Climate change impact and adaptation on wheat yield, water use and water use efficiency at North Nile Delta

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Frontiers of Earth Science 2020年第3期14卷 522-536页

作者： marwa Gamal Mohamed Ali Mahmoud Mohamed Ibrahim ahmed El Baroudy Michael Fullen El-Said Hamad Omar Zheli Ding ahmed Mohammed Saad Kheir Soil and Water Department Faculty of AgricultureTanta UniversityTanta33516Egypt Soils Water and Environment Research InstituteAgricultural Research CenterGiza12411Egypt Faculty of Science and Engineering The University of WolverhamptonWolverhamptonWV11LYUK Haikou Experimental Station Chinese Academy of Tropical Agricultural Sciences(CATAS)Haikou570000China

Investigation of climate change impacts on food security has become a global hot *** so,efforts to mitigate these issues in arid regions have been ***,in this paper,further research is discussed based on data obtained from various crop and climate *** DSSATcrop models(CMs)(CERESWheat and N-Wheat)were calibrated with two wheat cultivars(Gemiza9 and Misr1).A baseline simulation(1981-2010)was compared with different scenarios of simulations using three Global Climate Models(GCMs)for the 2030s,2050s and *** impacts of climate change were assessed using the GCMs and CMs under the high emission Representative Concentration Pathway(RCP8.5).Results predicted decreased wheat grain yields by a mean of 8.7%,11.4%and 13.2%in the 2030s,2050s and 2080s,respectively,relative to the baseline *** impacts of climatic change are probable,despite some uncertainties within the GCMs(i.e.,2.1%,5.0%and 8.0%)and CMs(i.e.,2.2%,6.0%and 9.2%).Changing the planting date with a scenario of plus or minus 5 or 10 days from the common practice was assessed as a potentially effective adaptation option,which may partially offset the negative impacts of climate *** the sowing date by 10 days(from 20 November to 30 November)proved the optimum scenario and decreased further reduction in wheat yields resulting from climate change to 5.2%,6.8%and 8.5%in the 2030s,2050s and 2080s,respectively,compared with the 20 November *** planting 5-days earlier scenario showed a decreased impact on climate change ***,the 10-days early planting scenario increased yield reduction under projected climate *** cultivar Misr1 was more resistant to rising temperature than *** the negative impacts of projected climate change on wheat production,water use efficiency would slightly *** ensemble of multi-model estimated impacts and adaptation uncertainties of climate change can assist decision-makers in planning clima

关键词： DSSAT models scenarios adaptation water use efficiency climate change

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Lightweight Transfer Learning Models for Ultrasound-Guided Classification of COVID-19 Patients

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Computers, Materials & Continua 2021年第11期69卷 2295-2312页

作者： Mohamed Esmail Karar Omar Reyad Mohammed Abd-Elnaby Abdel-Haleem Abdel-Aty marwa ahmed Shouman College of Computing and Information Technology Shaqra UniversityShaqra11961Saudi Arabia Department of Industrial Electronics and Control Engineering Faculty of Electronic Engineering(FEE)Menoufia UniversityMenouf32952Egypt Department of Mathematics and Computer Science Faculty of ScienceSohag UniversitySohag82524Egypt Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Physics College of SciencesUniversity of BishaBisha61922Saudi Arabia Department of Physics Faculty of ScienceAl-Azhar UniversityAssiut71524Egypt Department of Computer Science and Engineering Faculty of Electronic Engineering(FEE)Menoufia UniversityMenouf32952Egypt

Lightweight deep convolutional neural networks(CNNs)present a good solution to achieve fast and accurate image-guided diagnostic procedures of COVID-19 ***,advantages of portable Ultrasound(US)imaging such as simplicity and safe procedures have attracted many radiologists for scanning suspected COVID-19 *** this paper,a new framework of lightweight deep learning classifiers,namely COVID-LWNet is proposed to identify COVID-19 and pneumonia abnormalities in US *** to traditional deep learning models,lightweight CNNs showed significant performance of real-time vision applications by using mobile devices with limited hardware *** main lightweight deep learning models,namely MobileNets,ShuffleNets,MENet and MnasNet have been proposed to identify the health status of lungs using US *** image dataset(POCUS)was used to validate our proposed COVID-LWNet framework *** classes of infectious COVID-19,bacterial pneumonia,and the healthy lung were investigated in this *** results showed that the performance of our proposed MnasNet classifier achieved the best accuracy score and shortest training time of 99.0%and 647.0 s,*** paper demonstrates the feasibility of using our proposed COVID-LWNet framework as a new mobilebased radiological tool for clinical diagnosis of COVID-19 and other lung diseases.

关键词： Coronavirus medical image processing artificial intelligence ultrasound

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