维普中文期刊产品整合服务
1089篇 您的检索式:作者名="MAHMOUD M"
    题名 作者 年代 出处 被引量
1Reversibility of minimal hepatic encephalopathy following liver transplantation in Egyptian cirrhotic patients显示文摘AIM To evaluate the reversibility of minimal hepatic encephalopathy(MHE) following liver transplantation(LT) in Egyptian cirrhotic patients. METHODS This prospective study included twenty patients with biopsy-proven liver cirrhosis listed for LT and twenty ageand sex-matched healthy control subjects. All underwent neuro-psychiatric examination, laboratory investigations, radiological studies and psychometric tests including trail making test A(TMT A), TMT B, digit symbol test and serial dotting test. The psychometric hepatic encephalopathy score(PHES) was calculated for patients to diagnose MHE. Psychometric tests were repeated six months following LT in the cirrhotic patient group. RESULTS Before LT, psychometric tests showed highly significant deficits in cirrhotic patients in comparison to controls(P < 0.001). There was a statistically significant improvement in test values in the patient group after LT; however, their values were still significantly worse than those of the controls(P < 0.001). The PHES detected MHE in 16 patients(80%) before LT with a median value of -7 ± 3.5. The median PHES value was significantly improved following LT, reaching-4.5 ± 5(P < 0.001), and the number of patients with MHE decreased to 11(55%). The pre-transplant model for end-stage liver disease(MELD) score ≥ 15 was significantly related to the presence of post-transplant MHE(P = 0.005). More patients in whom reversal of MHE was observed had a pre-transplant MELD score < 15.CONCLUSION Reversal of MHE in cirrhotic patients could be achieved by LT, especially in those with a MELD score < 15.Mahmoud A Osman Moataz M Sayed Khaled A Mansour Shereen A Saleh Wesam A Ibrahim Sara M Abdelhakam Mohamed Bahaa Wael A Yousry Hosam S Elbaz Reginia N Mikhail Azza M Hassan Ehab H Elsayed Dalia A Mahmoud 2016World Journal of Hepatology2016,8,30:11
2Predictors of long term survival after hepatic resection for hilar cholangiocarcinoma:A retrospective study of 5-year survivors显示文摘AIM:To determine predictors of long term survival after resection of hilar cholangiocarcinoma(HC) by comparing patients surviving > 5 years with those who survived < 5 years.METHODS:This is a retrospective study of patients with pathologically proven HC who underwent surgical resection at the Gastroenterology Surgical Center,Mansoura University,Egypt between January 2002 and April 2013.All data of the patients were collected from the medical records.patients were divided into two groups according to their survival:patients surviving less than 5 years and those who survived > 5 years.RESULTS:There were 34(14%) long term survivors(5 year survivors) among the 243 patients.Fiveyear survivors were younger at diagnosis than those surviving less than 5 years(mean age,50.47 ± 4.45 vs 54.59 ± 4.98,p = 0.001).Gender,clinical presentation,preoperative drainage,preoperative serum bilirubin,albumin and serum glutamic-pyruvic transaminase were similar between the two groups.The level of CA 19-9 was significantly higher in patients surviving < 5 years(395.71 ± 31.43 vs 254.06 ± 42.19,p = 0.0001).Univariate analysis demonstrated nine variables to be significantly associated with survival > 5 year,includingyoung age(p = 0.001),serum CA19-9(p = 0.0001),non-cirrhotic liver(p = 0.02),major hepatic resection(p = 0.001),caudate lobe resection(p = 0.006),well differentiated tumour(p = 0.03),lymph node status(0.008),R0 resection margin(p = 0.0001) and early postoperative liver cell failure(p = 0.02).CONCLUSION:Liver status,resection of caudate lobe,lymph node status,R0 resection and CA19-9 were demonstrated to be independent risk factors for long term survival.Mohamed Abd El Wahab Ayman El Nakeeb Ehab El Hanafy Ahmad M Sultan Ahmed Elghawalby Waleed Askr Mahmoud Ali Mohamed Abd El Gawad Tarek Salah 2016World Journal of Gastrointestinal Surgery2016,8,6:10
3Influence of proton pump inhibitors on gastritis diagnosis and pathologic gastric changes显示文摘AIM: To investigate the influence of proton pump inhibitors(PPIs) exposure on the diagnosis of Helicobacter pylori(H. pylori) gastritis and intestinal metaplasia.METHODS: Chronic PPI use is associated with masking of H. pylori infection. Patients with H. pylori infection are predisposed to gastric and duodenal ulcers, and long-term infection with this organism has been associated with gastric mucosal atrophy and serious long-term complications, such as gastric lymphoma and adenocarcinoma. Three hundred patients diagnosed with gastritis between January 2008 and April 2010 were included in our study. The computerized medical database of these patients was reviewed retrospectively in order to assess whether the type of gastritis diagnosed(H. pylori vs non-H. pylori gastritis) is influenced by PPI exposure. H. pylori density was graded as low, if corresponding to mild density following the Updated Sydney System, or high, if corresponding to moderate or severe densities in the Updated Sydney System.RESULTS: Patients were equally distributed between males and females with a median age at the time of diagnosis of 50 years old(range: 20-87). The histological types of gastritis were classified as H. pylori gastritis(n = 156, 52%) and non-H. pylori gastritis(n = 144, 48%). All patients with non-H. pylori gastritis had inactive chronic gastritis. Patients with no previous PPI exposure were more likely to be diagnosed with H. pylori gastritis than those with previous PPI exposure(71% vs 34.2%, P < 0.001). Intestinal metaplasiawas more likely to be detected in the latter patients(1.4% vs 6.5%, P = 0.023). Multivariate analysis has also demonstrated that in the presence of previous PPI exposure(OR = 0.217, 95%CI: 0.123-0.385), GERD(OR = 0.317, 95%CI: 0.132-0.763, P = 0.01), alcohol intake(OR = 0.396, 95%CI: 0.195-0.804, P = 0.01), the detection of H. pylori was less likely. Chronic use of PPIs may mask H. pylori infections promoting the diagnosis of non-H. pylori gastritis and leads to a significant drop in H. pylori densities and to an increased risk of intestinal metaplasia.CONCLUSION: The use of PPIs masks H. pylori infection, promotes the diagnosis of non-H. pylori inactive chronic gastritis diagnosis, and increases the incidence of intestinal metaplasia.Soumana C Nasser Mahmoud Slim Jeanette G Nassif Selim M Nasser 2015World Journal of Gastroenterology2015,21,15:7
4Application of three-dimensional culture systems to study mammalian spermatogenesis, with an emphasis on the rhesus monkey (Macaca mulatta)显示文摘Mahmoud Huleihel Seyedmehdi Nourashrafeddin Tony M Plant 2015Asian Journal of Andrology2015,17,6:6
5枯草芽孢杆菌及饲料粗蛋白质水平对肉鸡生长性能和肉鸡肠道形态的影响显示文摘试验通过检测肉鸡生长性能、胴体品质、肉品质和消化道发育情况、回肠CP消化率,探究日粮中添加枯草芽孢杆菌对肉鸡粗蛋白质(CP)需求量的影响。试验选取720只1日龄肉鸡。设置2×2方阵设计,包括按照标准CP水平设置的对照组(CP 100),在标准基础上降低2%CP含量的试验组(CP 98);不添加枯草芽孢杆菌组及添加枯草芽孢杆菌0.2 g·kg^(-1)组(0.8×10~9cfu·g^(-1),将肉鸡随机分配到各组。每组6个重复,每个重复30只肉鸡。育雏料、生长期饲料和育肥期饲料均按照标准制定,饲料中添加枯草芽孢杆菌对生长性能无显著影响。然而,随着日粮中CP水平下降,体增重和饲料效率显著下降(P<0.05),饲料中添加枯草芽孢杆菌可显著提高肉鸡胴体品质(P<0.05)。添加枯草芽孢杆菌对肉品质无显著影响,然而,随着日粮中CP含量下降,肉的保水力显著下降(P<0.05);空肠隐窝显著变深(P<0.05),回肠CP消化率显著提高(P<0.05)。试验结果表明,日粮中添加枯草芽孢杆菌可改善空肠形态,减缓日粮中CP含量减少的不利影响。因此,益生菌的使用可改变胃肠道形态特征,提高CP的回肠消化率,提高饲料效率。Mahmoud K Z Obeidat B S Al-Sadi M Z Hatahet Sh R 2017饲料博览2017,0,1:5
6Investigation of soliton solutions with different wave structures to the(2+1)-dimensional Heisenberg ferromagnetic spin chain equation显示文摘The principal objective of this article is to construct new and further exact soliton solutions of the(2+1)-dimensional Heisenberg ferromagnetic spin chain equation which investigates the nonlinear dynamics of magnets and explains their ordering in ferromagnetic materials.These solutions are exerted via the new extended FAN sub-equation method.We successfully obtain dark,bright,combined bright-dark,combined dark-singular,periodic,periodic singular,and elliptic wave solutions to this equation which are interesting classes of nonlinear excitation presenting spin dynamics in classical and semi-classical continuum Heisenberg systems.3D figures are illustrated under an appropriate selection of parameters.The applied technique is suitable to be used in gaining the exact solutions of most nonlinear partial/fractional differential equations which appear in complex phenomena.M S Osman K U Tariq Ahmet Bekir A Elmoasry Nasser S Elazab M Younis Mahmoud Abdel-Aty 2020Communications in Theoretical Physics2020,72,3:4
7Interrelationship between Toll-like receptors and infection after orthotopic liver transplantation显示文摘Early microbial recognition by the innate immune system is accomplished by Toll-like receptors(TLRs),with resultant initiation of a pro-inflammatory response against infecting organisms.In spite of presence of an abundance of Toll-like receptors on the surface of the liver,gut bacteria does not elicit an inflammatory reaction in healthy individuals due to tolerance to these TLRs,suggesting that the inflammatory responses seen in the liver are the result of breakdown of this tolerance.While orthotopic liver transplantation is often life saving in many instances,death following this procedure is most commonly due to infection that occurs in up to 80%of transplant recipients,most commonly due to microbial causes in up to 70%of cases and viral infections in 20%,while fungal infections affect only 8%of cases.The probability of acquiring infection following hepatic transplantation is heightened due to affection of the innate immune defense mechanisms of the host following this procedure.Single nucleotide polymorphisms of TLRs have been associated with increased likelihood of either development of post-transplant infection or eradication of infecting organism.However,conflicting reports from other studies reveal that prevalence of this single nucleotide polymorphism is not increased in infected patients.Mahmoud El-Bendary Mustafa Naemattalah Ahmed Yassen Naser Mousa Dina Elhammady Ahmed M Sultan Mohamed Abdel-Wahab 2020World Journal of Transplantation2020,10,6:3
8Haemoxygenase modulates cytokine induced neutrophil chemoattractant in hepatic ischemia reperfusion injury显示文摘AIM To investigate the hepatic microcirculatory changes due to Haemoxygenase(HO),effect of HO inhibition on remote ischemic preconditioning(RIPC) and modulation of CINC.METHODS Eight groups of animals were studied- Sham,ischemia reperfusion injury(IRI) the animals were subjected to 45 min of hepatic ischemia followed by three hours of reperfusion,RIPC(remote ischemic preconditioning) + IRI group,remote ischemic preconditioning in sham(RIPC + Sham),PDTC + IR(Pyridodithiocarbamate,HO donor),Zn PP + RIPC + IRI(Zinc protoporphyrin prior to preconditioning),IR-24(45 min of ischemia followed by 24 h of reperfusion),RIPC+IR-24(preconditioning prior to. After 3 and 24 h of reperfusion the animals were killed by exsanguination and samples were taken. RESULTS Velocity of flow(160.83 ± 12.24 μm/s),sinusoidal flow(8.42 ± 1.19) and sinusoidal perfusion index(42.12 ± 7.28) in hepatic IR were lower(P < 0.05) in comparison to RIPC and PDTC(HO inducer). RIPC increased velocity of flow(328.04 ± 19.13 μm/s),sinusoidal flow(17.75 ± 2.59) and the sinusoidal perfusion index(67.28 ± 1.82)(P < 0.05). PDTC(HO induction) reproduced the effects of RIPC in hepatic IR. PDTC restored RBC velocity(300.88 ± 22.109 μm/s),sinusoidal flow(17.66 ± 3.71) and sinusoidal perfusion(82.33 ± 3.5) to near sham levels. Zn PP(HO inhibition) reduced velocity of flow of RBC in the RIPC group(170.74 ± 13.43 μm/s and sinusoidal flow in the RIPC group(9.46 ± 1.34). Zn PP in RIPC(60.29 ± 1.82) showed a fall in perfusion only at 180 min of reperfusion. Neutrophil adhesion in IR injury is seen in both postsinusoidal venules(769.05 ± 87.48) and sinusoids(97.4 ± 7.49). Neutrophil adhesion in RIPC + IR injury is reduced in both postsinusoidal venules(219.66 ± 93.79) and sinusoids(25.69 ± 9.08)(P < 0.05). PDTC reduced neutrophil adhesion in both postsinusoidal venules(89.58 ± 58.32) and sinusoids(17.98 ± 11.01)(P < 0.05) reproducing the effects of RIPC. Zn PP(HO inhibition) increased venular(589.04 ± 144.36) and sinusoidal neutrophil adhesion in preconditioned animals(121.39 ± 30.65)(P < 0.05). IR after 24 h of reperfusion increased venular and sinusoidal neutrophil adhesion in comparison to the early phase and was significantly reduced by RIPC. Hepatocellular cell death in IRI(80.83 ± 13.03),RIPC + IR(17.35 ± 2.47),and PTDC+IR(11.66 ± 1.17) Zn PP + RIPC + IR(41.33 ± 3.07) reduced hepatocellular death. Zn PP significantly increased hepatocellular death(P < 0.05 PTDC/RIPC vs Zn PP and IR). The CINC cytokine levels in sham(101.32 ± 6.42). RIPC + sham(412.18 ± 65.24) as compared to sham(P < 0.05). Hepatic IR(644.08 ± 181.24)(P < 0.05). RIPC CINC-1 levels in the early phase(401.62 ± 78.56). And PDTC(HO inducer) CINC-1 levels in hepatic IR(413.36 ± 63.06) were significantly lower. HO inhibition in preconditioned animals with Zinc protoporphyrin increased serum CINC levels(521.81 ± 74.9)(P < 0.05). The serum CINC levels were high in the late phase of hepatic IR(15306 ± 1222.04). RIPC reduced CINC levels in the late phase of IR(467.46 ± 26.06),P < 0.05.CONCLUSION RIPC protects hepatic microcirculation by induction of HO and modulation of CINC in hepatic IR.Niteen Tapuria Sameer Junnarkar Mahmoud Abu-amara Barry Fuller Alexander M Seifalian Brian R Davidson 2016World Journal of Gastroenterology2016,22,33:3
9Do age-associated changes of voltage-gated sodium channel isoforms expressed in the mammalian heart predispose the elderly to atrial fibrillation?显示文摘Atrial fibrillation(AF)is the most common cardiac arrhythmia worldwide.The prevalence of the disease increases with age,strongly implying an age-related process underlying the pathology.At a time when people are living longer than ever before,an exponential increase in disease prevalence is predicted worldwide.Hence unraveling the underlying mechanics of the disease is paramount for the development of innovative treatment and prevention strategies.The role of voltage-gated sodium channels is fundamental in cardiac electrophysiology and may provide novel insights into the arrhythmogenesis of AF.Na_v1.5 is the predominant cardiac isoform,responsible for the action potential upstroke.Recent studies have demonstrated that Na_v1.8(an isoform predominantly expressed within the peripheral nervous system)is responsible for cellular arrhythmogenesis through the enhancement of pro-arrhythmogenic currents.Animal studies have shown a decline in Na_v1.5 leading to a diminished action potential upstroke during phase 0.Furthermore,the study of human tissue demonstrates an inverse expression of sodium channel isoforms;reduction of Na_v1.5 and increase of Na_v1.8 in both heart failure and ventricular hypertrophy.This strongly suggests that the expression of voltage-gated sodium channels play a crucial role in the development of arrhythmias in the diseased heart.Targeting aberrant sodium currents has led to novel therapeutic approaches in tackling AF and continues to be an area of emerging research.This review will explore how voltage-gated sodium channels may predispose the elderly heart to AF through the examination of laboratory and clinical based evidence.Emmanuel Isaac Stephanie M Cooper Sandra A Jones Mahmoud Loubani 2020World Journal of Cardiology2020,12,4:3
10Structural and Tectonic Evolution of El-Faiyum Depression,North Western Desert,Egypt Based on Analysis of Landsat ETM+,and SRTM Data显示文摘False color Landsat ETM+ (bands 7, 4, 2 in RGB) and SRTM images of the El-Faiyum depression, Egypt, highlights major NE-SW faults and other lineaments trending NW-SE and N-S. Airborne magnetic data reveal some E-W subsurface faults which are not recognized on Landsat ETM+ and SRTM images. Ratio images (5/7, 3/1, 4/3) and (5/7, 5/1, 4) were used for lithological discrimination of different rock types. The El-Faiyum area is occupied by sedimentary rocks of Middle Eocene, Upper Eocene, Oligocene, Lower Miocene, Pliocene, Pleistocene and Holocene. Understanding the structural regime of El-Faiyum depression in the Western Desert of Egypt is significant in relation to the neotectonics of the Nile Delta and to the development of new communities west of the delta. The area is covered by Late Cretaceous, Middle to Late Eocene deposits, Oligocene deposits (comprising fluviatile sediments and basalt sheets) and Pliocene and Quaternary alluvium and sand deposits. New geological and structural maps were prepared at a scale of 1 : 100 000 using Landsat ETM+ and SRTM images coupled with extensive field work. The major structural trends are E-W, ENE, NS and NW-the same trends observed elsewhere in North Africa from NW Sudan to NE Egypt including north and central Sinai. El-Faiyum depression is a structurally-controlled tectonic basin, marked by northeast-striking faults along its northern margin. These faults are parallel to similar faults of the Syrian arc fold belt, which includes a group of related faults, folds, push-up structures, and basins. Qarun Lake is located in the northern part of El-Faiyum depression, at a right-step between two strands of the NE striking fault system. We have suggested elsewhere that El-Faiyum depression is a pull-apart basin related to extension between these mismatched strands of strike-slip faults. The E-W structures are probably related to the relative motion between south Europe and north Egypt and closure of the Neotethys. The continuation of these faults in the present area is only detected from magnetic and seismic studies. The question that needs to be raised is why these old structural features have been reactivated in recent times. Thus, the presence of these fault zones must be heeded in all development plans for El-Faiyum region.Timothy M Kusky Talaat M Ramadan Mahmoud M Hassaan Safwat Gabr 2011Journal of Earth Science2011,22,1:3
11Impact of cytokine storm and systemic inflammation on liver impairment patients infected by SARS-CoV-2:Prospective therapeutic challenges显示文摘Coronavirus disease 2019(COVID-19)is a devastating worldwide pandemic infection caused by a severe acute respiratory syndrome namely coronavirus 2(SARS-CoV-2)that is associated with a high spreading and mortality rate.On the date this review was written,SARS-CoV-2 infected about 96 million people and killed about 2 million people.Several arguments disclosed the high mortality of COVID-19 due to acute respiratory distress syndrome or change in the amount of angiotensin-converting enzyme 2(ACE2)receptor expression or cytokine storm strength production.In a similar pattern,hepatic impairment patients co-infected with SARS-CoV-2 exhibited overexpression of ACE2 receptors and cytokine storm overwhelming,which worsens the hepatic impairment and increases the mortality rate.In this review,the impact of SARS-CoV-2 on hepatic impairment conditions we overviewed.Besides,we focused on the recent studies that indicated cytokine storm as well as ACE2 as the main factors for high COVID-19 spreading and mortality while hinting at the potential therapeutic strategies.Fares E M Ali Zuhair M Mohammedsaleh Mahmoud M Ali Osama M Ghogar 2021World Journal of Gastroenterology2021,27,15:3
12Immunization against Egyptian Schistosoma mansoni infection by multivalent DNA vaccine显示文摘由几抗原组成的多价的疫苗的发展是对不同寄生虫紧张和寄生虫生命周期阶段创造宽广范围的保护的一条新奇途径。我们以前证实了血吸虫 Sm21.7 和 Sm Fimbrin (SmFim ) 蛋白质能在老鼠导致保护。因此,这研究试图构造多价的 DNA 疫苗的 Sm21.7-SmFim/pBudCE4.1 并且评估它的有免疫力的功效。二血吸虫 mansoni 基因, Sm21.7 和 SmFim 的开的读物框架,被插入到为独立人士设计的真核细胞的表示原生质标志 pBudCE4.1 在哺乳动物的房间的二基因的表示。评估在里面在老鼠的多价的 Sm21.7-SmFim/pBudCE4.1 DNA 疫苗和它的免疫学的效果的 vitro 表示, recombinant 原生质标志 Sm21.7-SmFim/pBudCE4.1 习惯于 mRNA 的 transfect 293T 房间,和表示,蛋白质用反向的抄写聚合酶链反应和蛋白质印迹分析被检验。然后 Sm21.7-SmFim/pBudCE4.1 到的能力免于 S。mansoni 挑战感染在老鼠的种痘以后根据蠕虫负担和鸡蛋减小率被分析。种牛痘的老鼠出现了保护(56%) 的重要水平,和在数字和尺寸的减少,和在细胞的侧面的变化, granulomas。分别地,在肝和肠的鸡蛋减小是 41.53% 和 55.63% 相对仅仅收到了空向量的老鼠同样坚定。除了在蠕虫生存能力的减小,蠕虫肥沃和鸡蛋孵化能力被观察在使免疫的组跟随挑战感染。结果证明 Sm21.7-SmFim/pBudCE4.1 能表示 Sm2 1.7 和 SmFim mRNA 和蛋白质。连接酶的免疫吸着剂试金和蛋白质印迹分析显示使免疫的老鼠对 Sm21.7-SmFim/pBudCE4.1 产生了特定的免疫球蛋白 G。这些结果与多价的 S 建议那种痘。mansoni DNA 疫苗(SmFim-Sm21.7/pBudCE4.1 ) 不仅在蠕虫和卵负担导致重要减小,而且显著地减少卵 granulomas 的尺寸。在摘要,多价的疫苗与保护的重要水平刺激了特定的免疫并且反病理学的效果。Mahmoud H Romeih Hanem M Hassan Tarek S Abou Shousha Mohamed A Saber 2008Acta Biochimica et Biophysica Sinica2008,40,4:3
13Split-dose menthol-enhanced PEG vs PEG-ascorbic acid for colonoscopy preparation显示文摘AIM:To compare the efficacy and palatability of 4L polyethylene glycol electrolyte(PEG)plus sugar-free menthol candy(PEG+M)vs reduced-volume 2 L ascorbic acid-supplemented PEG(Asc PEG).METHODS:In a randomized controlled trial setting,ambulatory patients scheduled for elective colonoscopy were prospectively enrolled.Patients were randomized to receive either PEG+M or Asc PEG,both splitdosed with minimal dietary restriction.Palatability was assessed on a linear scale of 1 to 5(1=disgusting;5=tasty).Quality of preparation was scored by assignment-blinded endoscopists using the modified Aronchick and Ottawa scales.The main outcomes were the palatability and efficacy of the preparation.Secondary outcomes included patient willingness to retake the same preparation again in the future and completion of the prescribed preparation.RESULTS:Overall,200 patients were enrolled(100patients per arm).PEG+M was more palatable than Asc PEG(76%vs 62%,P=0.03).Completing the preparation was not different between study groups(91%PEG+M vs 86%Asc PEG,P=0.38)but more patients were willing to retake PEG+M(54%vs 40%respectively,P=0.047).There was no significant difference between PEG+M vs Asc PEG in adequate cleansing on both the modified Aronchick(82%vs77%,P=0.31)and the Ottawa scale(85%vs 74%,P=0.054).However,PEG+M was superior in the left colon on the Ottawa subsegmental score(score0-2:94%for PEG+M vs 81%for Asc PEG,P=0.005)and received significantly more excellent ratings than Asc PEG on the modified Aronchick scale(61%vs 43%,P=0.009).Both preparations performed less well in afternoon vs morning examinations(inadequate:29%vs 15.2%,P=0.02).CONCLUSION:4 L PEG plus menthol has better palatability and acceptability than 2 L ascorbic acidPEG and is associated with a higher rate of excellentpreparations;Clinicaltrial.gov identifier:NCT01788709.Ala I Sharara Ali H Harb Fayez S Sarkis Jean M Chalhoub Rami Badreddine Fadi H Mourad Mahmoud Othman Omar Masri 2015World Journal of Gastroenterology2015,21,6:2
14HepG2 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 2006World Journal of Gastroenterology2006,12,30:2
15Perioperative risk factors associated with delayed graft function following deceased donor kidney transplantation:A retrospective,single center study显示文摘BACKGROUND There is an abundant need to increase the availability of deceased donor kidney transplantation(DDKT)to address the high incidence of kidney failure.Challenges exist in the utilization of higher risk donor organs into what appears to be increasingly complex recipients;thus the identification of modifiable risk factors associated with poor outcomes is paramount.AIM To identify risk factors associated with delayed graft function(DGF).METHODS Consecutive adults undergoing DDKT between January 2016 and July 2017 were identified with a study population of 294 patients.The primary outcome was the occurrence of DGF.RESULTS The incidence of DGF was 27%.Under logistic regression,eight independent risk factors for DGF were identified including recipient body mass index≥30 kg/m^(2),baseline mean arterial pressure<110 mmHg,intraoperative phenylephrine administration,cold storage time≥16 h,donation after cardiac death,donor history of coronary artery disease,donor terminal creatinine≥1.9 mg/dL,and a hypothermic machine perfusion(HMP)pump resistance≥0.23 mmHg/mL/min.CONCLUSION We delineate the association between DGF and recipient characteristics of preinduction mean arterial pressure below 110 mmHg,metabolic syndrome,donorspecific risk factors,HMP pump parameters,and intraoperative use of phenylephrine.Nicholas V Mendez Yehuda Raveh Joshua J Livingstone Gaetano Ciancio Giselle Guerra George W Burke III Vadim B Shatz Fouad G Souki Linda J Chen Mahmoud Morsi Jose M Figueiro Tony M Ibrahim Werviston L DeFaria Ramona Nicolau-Raducu 2021World Journal of Transplantation2021,11,4:2
16ABO incompatibility in renal transplantation显示文摘ABO blood group incompatibility(ABO-I)was historically considered an absolute contraindication to kidney transplantation due to the significant risk of acute antibody-mediated rejection and early graft loss.Nevertheless,the urge to minimize the gap between the candidates’number on the waitlist for kidney transplants and the available kidney donors encourage investigation into finding ways to use organs from ABO-I kidney donors,especially in the era of using more potent immunosuppression therapies.This review aims to discuss a general overview of ABO-I kidney transplantation and the different protocols adopted by some transplant centers to meaningfully overcome this barrier.Mahmoud Mohamed Tara Sweeney Duaa Alkhader Mahmoud Nassar Ahmed Alqassieh Sofia Lakhdar Nso Nso Tibor Fulop Ahmed Daoud Karim M Soliman 2021World Journal of Transplantation2021,11,9:2
17MicroRNA-214 protects the mouse heart from ischemic injury by controlling Ca^sup 2+^ overload and cell death显示文摘Aurora Arin B Mahmoud Ahmed I Luo Xiang Johnson Brett A van Rooij Eva Matsuzaki Satoshi Humphries Kenneth M Hill Joseph A Bassel-Duby Rhonda Sadek Hesham A Olson Eric N 2012EN2012,,4:2
18Cascaded artificial neural networks for short-term load forecasting显示文摘Alfuhaid A S El SayedM A Mahmoud M S 1997IEEE Trans on Power Systems1997,12,4:2
19COVID-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 2023World Journal of Gastroenterology2023,29,3:2
20Enzymatic hydrolysis of casein: effect of degree of hydrolysis on antigenicity and physical properties 显示文摘MAHMOUD M MALONE W CORDLE C 1992Joumai of Food Science1992,57,5:1
返回顶部 每页显示:
共55页 首页 上一页 第1页 下一页 末页 /55 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费