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| 1 | IL28B polymorphism and cytomegalovirus predict response to treatment in Egyptian HCV type 4 patients显示文摘AIM:To test whether the status of positive cytomegalovirus(CMV) DNA detection adds to the predictive value of IL28B and to further categorize C/T allele carriers.METHODS:This study included 166 chronic hepatitis C(CHC) patients who received combined interferon and ribavirin therapy for 48 wk,84 spontaneous hepatitis C virus(HCV) resolvers who were positive for IgG anti-HCV antibody and negative for HCV RNA,and 100 healthy subjects who were negative for both HCV antibodies and RNA as controls.Genomic DNA from peripheral blood was used for IL28B rs.12979860 single nucleotide polymorphism(SNP) and CMV DNA detection.A 139 bp fragment containing IL28B SNP was amplified in all subjects by polymerase chain reaction using a specifically designed primer.Then the IL28B rs.12979860 SNP was detected by restriction fragment length polymorphism(RFLP) genotyping.The presence of CMV DNA was tested by amplification of the gB1 gene using nested polymerase chain reaction.The role of CMV and IL28B rs.12979860 SNP genotypes in determining the response rate to combined interferon therapy and clinical status of patients were statistically analyzed.RESULTS:Current data showed that 67% of patients carrying the IL28B 12979860 C/C allele had a sustained viral response(SVR) while the genotypes C/T and TT were associated with lower SVR rates,50% and 48%,respectively.SVR rates for the C/C allele were lower than other HCV genotypes and/or other populations.Genotype CC was associated with the response to interferon(P = 0.025).Genotype C/C was reduced from 48% in controls to 14% in CHC patients suggesting its protective role against progression to chronicity.The majority of spontaneously cleared subjects(86%) were C/C,confirming its protective role.The C/T allele was present in 71% of CHC patients compared with 38% of controls,so the use of IL28B SNP genotyping only in these patients may be of little value as a predictor of response.CMV reactivation occurred in 40% of CHC patients.Co-infection with CMV seriously diminished the response to interferon(IFN) therapy,with SVR rates in C/C genotypes 87.5% in CMV-negative patients and 12.5% in CMV-positive patients(P < 0.0001).SVR rates among C/T carriers were reduced to < 50% in patients with positive CMV DNA while the non-response rate doubled.These data indicate that a supplemental assay for CMV viremia adds to the prognostic value of IL28B genotyping.CONCLUSION:The results suggest that both genetic(i.e.,spontaneous) and therapeutic(IFN-based therapy) arms are complementary in the battle against HCV.CMV DNA testing may be of value to better predict the response to IFN,particularly in IL28B C/T carriers. | Mostafa K El Awady Noha G Bader El Din Ashraf Tabll Yaser El Hosary Ashraf O Abdel Aziz Hesham El Khayat Mohsen Salama Tawfeek H Abdelhafez | 2013 | World Journal of Gastroenterology2013，19，2： | 8 |
| 2 | Potential habitat modeling for reintroduction of three native plant species in central Iran显示文摘Potential habitat modeling of endemic species is an appropriate method to maintain biodiversity,ecosystem function and rehabilitation of rangeland ecosystems.Astragalus caragana,A.cyclophyllon and A.podolobus are endemic in Iran's rangelands and some neighboring countries.The three native species could endure environmental stresses due to their distinctive ecophysiological characteristics.They play important roles in sustainable pastures production,recreation and improvement.They suffer severe threat from many factors including;grazing,agriculture and invasive exotic species.We analyzed the potential habitat of three native plant species in central Iran basing on the grid map with the resolution of 1-km.We used inventory records from field surveys,herbarium collections and 22 environmental factors to explore the environmental influences on given species distribution by Maximum entropy(Maxent) model.Maxent is a species distribution model that uses species occurrence and environmental data for predicting potential species.The results of our study indicated species occurrence has strong correlation with environmental factors such as mean temperature of wettest season,elevation and precipitation of coldest season.We evaluated the model accuracy by AUC(area under the receiver operating characteristic curve) based on an independent test data set.AUC values indicated the high power of Maxent to create potential habitat map(AUCA.caragana=0.988,AUCA.cyclophyllon=0.927,AUCA.podolobus=0.923).It is important to consider that AUC values tend to be lower for species that have broad distribution scope,such as A.podolobus distribution.Most suitable potential habitat distributions of the three species were predicted in the western and southwestern parts of rangelands in Isfahan province.Visual comparisons of the actual distribution map of the three species with produced Maxent maps represent a good agreement.In general,the model demonstrated that the occurrence of the given species is highly probable when the elevation is between 2,200 and 3,000 m and mean temperature of wettest season less than 3°C.This model,therefore,can be applied to recognize potential sites for rangeland reclamation projects. | Elham G ARDESTANI Mostafa TARKESH Mehdi BASSIRI Mohammad R VAHABI | 2015 | Journal of Arid Land2015，7，3： | 5 |
| 3 | Association between low molecular polypeptide 7 single nucleotide polymorphism and response to therapy in hepatitis C virus infection显示文摘AIM: To investigate the relationship between low molecular polypeptide-7 (LMP-7) gene polymorphism and response to interferon (IFN) therapy in chronic hepatitis C virus (HCV) patients. METHODS: LMP-7 polymorphism at codon 49 with nucleotide substitution from A to C was amplified in 104 chronic HCV patients of genotype 4. The amplicons were digested with restriction endonuclease Bsm I and the produced restriction fragment length polymorphism was analyzed. Patients received IFN + regional blood volume therapy for 48 wk and the frequency of thissingle nucleotide polymorphism (SNP) was statistically correlated with treatment response. The exclusion criteria for these patients were stated by the national health program for treating viral hepatitis. Main exclusion criteria included co-infection with hepatitis B virus or schistosomiasis, thyroid dysfunction, uncontrolled diabetes mellitus, history of long term drug or alcohol intake and autoimmune hepatitis. Multivariate analyses were done to correlate LMP-7 SNP plus several factors such as age, gender, weight, serum alpha-fetoprotein (AFP) and alanine aminotransferase levels, liver activity, fibrosis score and viral load with response to therapy. RESULTS: The data presented in this study clearly demonstrated statistically significant differences between sustained virological response (SVR) (defined as the absence of HCV RNA levels in the patient's sera at least 6 mo after discontinuation of treatment) and non-response (NR) (where HCV RNA levels in the patient's sera never become undetectable for 6 mo during or after treatment). Variables were described as odds ratio with 95%CI. The data were considered significant if P values were ≤ 0.05; highly significant if P < 0.01 and very highly significant if P < 0.001. Current data showed that 91.7% of patients carrying LMP-7 C/C allele were associated with SVR, while the other two genotypes C/A and A/A were associated with NR patients, 83.3% and 64.3% respectively, showing that genotype CC was strongly associated with response to interferon (95%CI: 12.0719-134.6572, P = 0.0001). The majority of parameters recorded in SVR and NR patients included higher values of mean age (P = 0.004), alanine aminotransferase (P = 0.001), AFP (P = 0.001), body weight (P = 0.025), viral load (P = 0.025), higher fibrosis and histological activity index indices among NR vs SVR patients. Also, the multivariate statistical analysis of the different factors of fibro-sis score, liver activity grade, genotypes and alleles of LMP-7 gene polymorphism in responders and NRs of HCV patients in this study showed that HCV patients with A allele had a very highly significant association with the NRs, high fibrosis and higher liver activity, while the C allele had a very highly significant association with the responders, low fibrosis and lower liver activity (95%CI: 3.5800-13.2519, P = 0.0001).CONCLUSION: LMP-7 SNP is a candidate gene that should be considered when designing a mathematical model for predicting response to therapy and disease progression in HCV patients. | Moataza H Omran Basma E Fotouh Samar S Youssef Noha E Ibrahim Wael Nabil EL-Sayed M Mahdy Wafaa G Shosha Mostafa K El-Awady | 2013 | World Journal of Hepatology2013，5，3： | 4 |
| 4 | 高超音速双楔形升力面的主动热气动弹性控制问题的研究(英文)显示文摘非线性热弹性和气动不稳定性问题在再入大气层运载工具和高超音速飞行器上都是极为重要的问题,应该在飞行器的设计阶段给予特别的重视。尤其是热力学问题更为重要,因为温度环境的变化可对高超音速飞行器结构的静力学与动力学特性产生显著影响,进而导致动力学不稳定乃至于灾难性的结构疲劳破坏。为了深入理解这类'热'结构的动力学行为,本文分析一种双楔形升力面,该升力面在沉浮和俯仰两个自由度方向都有自由间隙与三次非线性结构刚度。三阶空气动力学活塞理论被用来计算施加于升力面上的非线性非定常气动载荷。还考虑了由于升力面气动加热产生的轴向应力所导致的扭转刚度的损失。根据高速气流产生的隔热层温度可以预估气动加热的影响。主动控制是今年来兴起的主要用于航空宇航结构系统的新技术,为了抑制颤振边界上和颤振后的动力响应,我们采用了线性和非线性主动控制策略,给出了建模方法及其仿真结果。值得强调的是,当扭转刚度损失较大时有可能引发升力面的动力学不稳定状态。此外,主动控制策略还可以拓展颤振边界,并且能将不稳定极限环振动转变为稳定极限环振动,或者可以将这两种状态的转捩点推向更高的马赫数。 | Laith K Abbas 陈前 Piergiovanni Marzocca Gürdal Zafer Abdalla Mostafa | 2008 | Chinese Journal of Aeronautics2008，21，1： | 3 |
| 5 | Tumor necrosis factor-α-G308A polymorphism is associated with liver pathological changes in hepatitis C virus patients显示文摘AIM To investigate the association of tumor necrosis factor alpha(TNFα)-G308 A polymorphism with different liver pathological changes in treatment-na?ve Egyptian patients infected with hepatitis C virus(HCV) genotype 4.METHODS This study included 180 subjects,composed of 120 treatment-na?ve chronic HCV patients with different fibrosis grades(F0-F4) and 60 healthy controls. The TNFα-G308 A region was amplified by PCR and the different genotypes were detected by restriction fragment length polymorphism analysis. The TNFα protein was detected by enzyme-linked immunosorbent assay. The influence of different TNFα-G308 A genotypes on TNFα expression and liver disease progression were statistically analyzed. The OR and 95%CI were calculated to assess the relative risk confidence.RESULTS Current data showed that the TNFα-G308 A SNP frequency was significantly different between controls and HCV infected patients(P = 0.001). Both the AA genotype and A allele were significantly higher in late fibrosis patients(F2-F4,n = 60) than in early fibrosis patients(F0-F1,n = 60)(P = 0.05,0.04 respectively). Moreover,the GA or AA genotypes increased the TNFα serum level greater than the GG genotype(P = 0.002). The results showed a clear association between severe liver pathological conditions(inflammation,steatosis and fibrosis) and(GA + AA) genotypes(P = 0.035,0.03,0.04 respectively). The stepwise logistic regression analysis showed that the TNFα genotypes(GA + AA) were significantly associated with liver inflammation(OR = 3.776,95%CI: 1.399-10.194,P = 0.009),severe steatosis(OR = 4.49,95%CI: 1.441-14.0,P = 0.010) and fibrosis progression(OR = 2.84,95%CI: 1.080-7.472,P = 0.034). Also,the A allele was an independent risk factor for liver inflammation(P = 0.003),steatosis(P = 0.003) and fibrosis(P = 0.014). CONCLUSION TNFα SNP at nucleotide-308 represents an important genetic marker that can be used for the prognosis of different liver pathological changes in HCV infected | Noha G Bader El Din Sally Farouk Reem El-Shenawy Marwa K Ibrahim Reham M Dawood Mostafa M Elhady Ahmed M Salem Naglaa Zayed Ahmed Khairy Mostafa K El Awady | 2016 | World Journal of Gastroenterology2016，22，34： | 3 |
| 6 | HepG2 cells support viral replication and gene expression of hepatitis C virus genotype 4 in vitro显示文摘瞄准:与丙肝的长期的复制建立一个房间文化系统病毒(HCV ) 染色体和病毒的抗原的表示在试管内。方法:HepG2 房间线被孵化与长期的丙肝从一个病人与浆液为它的危险性测试到 HCV。房间和上层清液在文化期间在各种各样的时间点被收获。文化上层清液为它感染天真的房间的能力被测试。存在减(反感觉) 在房间的核心和 E1 抗原的 RNA 海滨,和察觉被 RT-PCR 和免疫学的技术(流动血细胞计数和西方的污点) 分别地检验。结果:细胞内部的 HCV RNA 首先在 d 上被检测 3 在感染以后然后能一致地在至少三个月的一个时期上在房间和上层清液被检测。新鲜房间能从有教养的感染的房间感染上层清液。流动 cytometric 分析证明表面和在房子里使用的细胞内部的 HCV 抗原表示使 polyclonal 成为了抗体(反核心,和 anti-E1 ) 。西方的污点分析证明在分子量的产生免疫性的肽的簇的表示在一个月内在 31 和 45 kDa 之间延长了感染的房间的旧文化而这簇在 uninfected HepG2 房间是无法发现的。结论:HepG2 房间线产生 HCV 感染而且支持它的复制在试管内不仅。HCV 结构的蛋白质的表示能在感染的 HepG2 房间被检测。这些房间也能够流病毒的粒子进接着对 uninfected 房间变得传染的培养基。 | Mostafa K El-Awady Ashraf A Tabll Yasmine S El-Abd Mahmoud M Bahgat Hussein A Shoeb Samar S Youssef Noha G Bader El Din El-Rashdy M Redwan Maha El-Demellawy Moataza H Omran Wael T El-Garf Said A Goueli | 2006 | World Journal of Gastroenterology2006，12，30： | 2 |
| 7 | The pharmacokinetics of the prostaglandin E1 analogue misoprostol in plasma and colostrum after postpartum oral administration显示文摘 | Hany Abdel-Aleem José Villar A Metin Gülmezoglu Sayed A Mostafa Alaa A Youssef Mahmoud Shokry Bernhard Watzer | 2002 | European Journal of Obstetrics and Gynecology2002，，1： | 2 |
| 8 | COVID-19 and hepatic injury: cellular and molecular mechanisms in diverse liver cells显示文摘The coronavirus disease 2019(COVID-19)represents a global health and economic challenge.Hepatic injuries have been approved to be associated with severe acute respiratory syndrome coronavirus(SARS-CoV-2)infection.The viral tropism pattern of SARS-CoV-2 can induce hepatic injuries either by itself or by worsening the conditions of patients with hepatic diseases.Besides,other factors have been reported to play a crucial role in the pathological forms of hepatic injuries induced by SARS-CoV-2,including cytokine storm,hypoxia,endothelial cells,and even some treatments for COVID-19.On the other hand,several groups of people could be at risk of hepatic COVID-19 complications,such as pregnant women and neonates.The present review outlines and discusses the interplay between SARS-CoV-2 infection and hepatic injury,hepatic illness comorbidity,and risk factors.Besides,it is focused on the vaccination process and the role of developed vac-cines in preventing hepatic injuries due to SARS-CoV-2 infection. | Fares E M Ali Mostafa K Abd El-Aziz Mahmoud M Ali Osama M Ghogar Adel G Bakr | 2023 | World Journal of Gastroenterology2023，29，3： | 2 |
| 9 | Relationship between molecular compositions and rheological properties of neat asphalt binder at low and intermediate temperatures显示文摘 | Mostafa A E Louay N M Ionela G | | 0，，12： | 1 |
| 10 | Similarity analysis for effects of variable diffusivity and heat generation/absorption on heat and mass transfer for a MHD stagnation-point flow of a convective viscoelastic fluid over a stretching sheet with a slip velocity 显示文摘 | EL-HAWARY H M MOSTAFA A A MAHMOUD ABDEL- RAHMAN REDA G ABEER S E | 2013 | Mathematical Problems in Engineering2013，，： | 1 |
| 11 | Prediction of standard heats and Gibbs free energies formation of solid inorganic salts from group contributions显示文摘 | Mostafa A T M G Eakman J M Yarbro S L | | 0，，12： | 1 |
| 12 | Effect of PEG stress on germina- tion indices and seedling growth of 12 bread wheat gentypes显示文摘 | Taregh G Mostafa V Reza S etal | 2011 | Ad- vances in Environmental Biology2011，5，6： | 1 |
| 13 | Surgical treatment of displaced intra-articular catcaneal fracture using a single small lateral approach 显示文摘 | Mostafa M F E1-Adi G Hassanin E Y | 2010 | Strategies Trauma Limb Reconstr2010，5，2： | 1 |
| 14 | Titanium elastic nail fixation for paediatric femoral and tibial fractures显示文摘 | El-Adl G Mostafa MF Khalil MA | 2009 | Acta Orthop Belg2009，75，4： | 1 |
| 15 | Acute microvascular platelet aggregation after subarachnoid hemorrhage显示文摘 | Sehba FA Mostafa G Friedrich V Jr | 2005 | J Neurosurg2005，102，： | 1 |
| 16 | Acute alterations in microvascular basal lamina after subarachnoid hemorrhage显示文摘 | Mostafa G Knopman J | 2004 | J Neurosurg2004，101，： | 1 |
| 17 | Nonlinear analysis of prestressed concrete box girder bridges under flexure显示文摘 | Razaqpur A G Nofal Mostafa Mirza M S | 1989 | Can J Civ Eng1989，16，1： | 1 |
| 18 | Effect of different starter cultures on the biogenic amines production as a critical control point in fresh fermented sausages 显示文摘 | Mokhtar S Mostafa G Taha R | 2012 | Eu- ropeam Food Researoh and Technology2012，235，3： | 1 |
| 19 | Gender-related outcomes in trauma显示文摘 | Mostafa G Huynh T Sing RF | 2002 | J Trauma-Injury Infection Crit Care2002，53，3： | 1 |
| 20 | Indirect spectrometric determination of small amounts of selenium (%) and arsenic (&) by simple extraction using flotation columns显示文摘 | Mostafa G A Ghazy S E | 2001 | Anal Sci2001，17，： | 1 |
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