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| 1 | Reversibility 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 | 2016 | World Journal of Hepatology2016，8，30： | 11 |
| 2 | 螺旋轴流式油气混输泵导叶内非定常流动DMD分析显示文摘为研究螺旋轴流式油气混输泵内的非稳态特性,对泵内非稳态气液两相流动进行数值模拟分析,得到不同流量、不同叶高的流场分布。对流量100 m^3/h、含气量30%工况下的非定常速度场进行动态模态分解(DMD),得到能够反映速度场特征的前4阶主要模态场及其相应的频率信息。导叶内流场特征可分解为耗散模态、基本模态以及高阶动态模态特征,耗散模态随时间逐渐衰减,对流场的发展影响较小;基本模态是频率为零的稳态特征,能够反映叶片型线等流道几何特征引起的稳态流场特征;3阶及4阶动态模态反映了叶轮与导叶间的动静干扰,在不断向导叶下游发展的过程中逐步耗散,动静干扰作用对导叶下游流动影响较小。对相态场进行分解得到其主要模态场特征及其频率信息,其基本模态特征表明,在导叶叶高较大的截面上,流速越高,则含气量越低;相态场的高阶动态模态特征与速度场动态模态特征基本一致。DMD模态分析方法能够清楚地分析油气混输泵导叶内复杂流动的非定常特性。 | 张人会 王少华 OSMAN JUMA S A | 2020 | 农业机械学报2020，51，9： | 7 |
| 3 | Investigation 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 | 2020 | Communications in Theoretical Physics2020，72，3： | 4 |
| 4 | Current systematic reviews and meta-analyses of COVID-19显示文摘BACKGROUND Coronavirus disease 2019(COVID-19)has left a significant impact on the world's health,economic and political systems;as of November 20,2020,more than 57 million people have been infected worldwide,with over 1.3 million deaths.While the global spotlight is currently focused on combating this pandemic through means ranging from finding a treatment among existing therapeutic agents to inventing a vaccine that can aid in halting the further loss of life.AIM To collect all systematic reviews and meta-analyses published related to COVID-19 to better identify available evidence,highlight gaps in knowledge,and elucidate further meta-analyses and umbrella reviews that are yet to be performed.METHODS We explored studies based on systematic reviews and meta-analyses with the keyterms,including severe acute respiratory syndrome(SARS),SARS virus,coronavirus disease,COVID-19,and SARS coronavirus-2.The included studies were extracted from Embase,Medline,and Cochrane databases.The publication timeframe of included studies ranged between January 01,2020,to October 30,2020.Studies that were published in languages other than English were not considered for this systematic review.The finalized full-text articles are freely accessible in the public domain.RESULTS Searching Embase,Medline,and Cochrane databases resulted in 1906,669,and 19 results,respectively,that comprised 2594 studies.515 duplicates were subsequently removed,leaving 2079 studies.The inclusion criteria were systematic reviews or meta-analyses.860 results were excluded for being a review article,scope review,rapid review,panel review,or guideline that produced a total of 1219 studies.After screening articles were categorized,the included articles were put into main groups of clinical presentation,epi-demiology,screening and diagnosis,severity assessment,special populations,and treatment.Subsequently,there was a second subclassification into the following groups:gastrointestinal,cardiovascular,neurological,stroke,thrombosis,anosmia and dysgeusia,ocular manifestations,nephrology,cutaneous manifestations,D-dimer,lymphocyte,anticoagulation,antivirals,convalescent plasma,immunosuppressants,corticosteroids,hydroxychloroquine,renin-angiotensin-aldosterone system,technology,diabetes mellitus,obesity,pregnancy,children,mental health,smoking,cancer,and transplant.CONCLUSION Among the included articles,it is clear that further research is needed regarding treatment options and vaccines.With more studies,data will be less heterogeneous,and statistical analysis can be better applied to provide more robust clinical evidence.This study was not designed to give recommendations regarding the management of COVID-19. | Mahmoud Nassar Nso Nso Mostafa Alfishawy Anastasia Novikov Salim Yaghi Luis Medina Bahtiyar Toz Sofia Lakhdar Zarwa Idrees Yungmin Kim Dawa Ongyal Gurung Raheel S Siddiqui David Zheng Mariam Agladze Vikram Sumbly Jasmine Sandhu Francisco Cuevas Castillo Nadya Chowdhury Ravali Kondaveeti Sakil Bhuiyan Laura Guzman Perez Riki Ranat Carlos Gonzalez Harangad Bhangoo John Williams Alaa Eldin Osman Joyce Kong Jonathan Ariyaratnam Mahmoud Mohamed Ismail Omran Mariely Lopez Akwe Nyabera Ian Landry Saba Iqbal Anoosh Zafar Gondal Sameen Hassan Ahmed Daoud Bahaaeldin Baraka Theo Trandafirescu Vincent Rizzo | 2021 | World Journal of Virology2021，10，4： | 2 |
| 5 | Neurochemical metabolites in the medial prefrontal cortex in bipolar disorder A proton magnetic resonance spectroscopy study显示文摘The aim of this study was to investigate proton magnetic resonance spectroscopy metabolite values in the medial prefrontal cortex of individuals with euthymic bipolar disorder. The subjects consisted of 15 patients with euthymic bipolar disorder type Ⅰ and 15 healthy controls. We performed proton magnetic resonance spectroscopy of the bilateral medial prefrontal cortex and measured levels of N-acetyl aspartate, choline and creatine. Levels of these three metabolites in the medial prefrontal cortex were found to be lower in patients with bipolar disorder compared with healthy controls. A positive correlation was found between illness duration and choline levels in the right medial prefrontal cortex. Our study suggests that during the euthymic period, there are abnormalities in cellular energy and membrane phospholipid metabolism in the medial prefrontal cortex, and that this may impair neuronal activity and integrity. | Osman zdel Demet Kalayci Gülfizar Szeri-Varma Yilmaz Kiroglu Selim Tümkaya Tuge Toker-Ugurlu | 2012 | Neural Regeneration Research2012，7，36： | 2 |
| 6 | Detection of prostatic specific membrance antigen messager RNA using immunobead reverse transcriptase polymerase chain reaction显示文摘 | Ghossein RA Osman I Bhattacharya S | 1999 | Diagn Mol Pathol1999，8，2： | 2 |
| 7 | Successful pregnancy in a patient with polycystic kidney disease and advanced renal failure without prophylactic dialysis 显示文摘 | Hassan K Weissmam I Osman S | 2001 | Nephron2001，87，1： | 1 |
| 8 | An effective genetic algorithm approach to multi-objective resource allocation problems 显示文摘 | Osman M S Abo Sinna M A Mousa A A | 2005 | Applied Mathematics and Computation2005，，163： | 1 |
| 9 | Detection of prostatic specific membrane antigen messenger RNA using immunobead reverse transcriptase polymerase chain reaction显示文摘 | Ghossein RA Osman I Bhattacharya S | 1999 | Diagn Mol Pathol1999，8，2： | 1 |
| 10 | Spinal gout in a young pa- tient with involvement of thoracic, lumbar and sacroiliac re- gions显示文摘 | Kwan BY Osman S Barra L | 2013 | Joint Bone Spine2013，80，6： | 1 |
| 11 | A class of proportional in tegral sliding mode control with application to active suspension system显示文摘 | Sam Y M Osman H S Ghani M R | 2004 | Systems & Control Letters2004，51，3： | 1 |
| 12 | A novel method for pulmonary embolism detection in CTA images显示文摘 | zkan H Osman O Sahin S | 2014 | Comput Methods Programs Biomed2014，113，3： | 1 |
| 13 | Support vector machines显示文摘 | Hearst M A Dumais S T Osman E Platt J Scholkopf B | 1998 | IEEE Journal on Intelligent Systems and their Applications1998，13，4： | 1 |
| 14 | U rinary complication of migrated intrauterine contracep- tive device显示文摘 | El-Hefnawy A S EI-Nahas A R Osman Y | 2008 | Int Urogynecol J Pelvic Floor Dysfunct2008，19，2： | 1 |
| 15 | Does the extent of sperm DNA fragmentation affect IVF or ICSI outcome:a systematic review and meta analysis显示文摘 | Osman A Alsomait H Seshadri S | 2013 | Hum Reprod2013，28，1： | 1 |
| 16 | Development Process of New Bumper Beam for Passenger Car: A Review显示文摘 | iVl Davoodi S M Sapuan A Aidy NA Abu Osman A Oshkour WABWan Abas | 2012 | Materials & Design2012，40，： | 1 |
| 17 | Ruminant Brucellosis in the Kafr El Sheikh Governorate of the Nile Delta, Egypt: Prevalence of a Neglected Zoonosis显示文摘 | Hegazy Y M Moawad A Osman S | 2011 | Plos neglected tropical diseases2011，5，1： | 1 |
| 18 | Low-power holmium: YAG laser urethrotomy for treatment of urethral strictures: func- tional outcome and quality of life 显示文摘 | KAMP S KNOLL T OSMAN MM | 2006 | J Endourol2006，20，1： | 1 |
| 19 | Association of the angiotensin-converting enzyme (ACE) gene G2350A dimorphism with essential hypertension 显示文摘 | Saeed Mahmood M Saboohi K Osman Ali S | 2003 | J Hum Hypertens2003，17，： | 1 |
| 20 | Imaging evaluation of maternal complicati- ons associated with repeat cesarean de- liveries显示文摘 | Moshiri M Osman S Bhargava P | 2014 | Radiol Clin North Am2014，52，5： | 1 |
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