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95篇 您的检索式:作者名="Obaid"
    题名 作者 年代 出处 被引量
1Micro RNAs in colorectal cancer:Role in metastasis and clinical perspectives显示文摘Colorectal cancer(CRC)is the third most common malignancy and the third leading cause of cancer related deaths in the United States.Almost 90%of the patients diagnosed with CRC die due to metastases.Micro RNAs(mi RNAs)are evolutionarily conserved molecules that modulate the expression of their target genes post-transcriptionally,and they may participate in various physiological and pathological processes including CRC metastasis by influencing various factors in the human body.Recently,the role mi RNAs play throughout the CRC metastatic cascade has gain attention.Many studies have been published to link them with CRC metastasis.In this review,we will briefly discuss metastatic steps in the light of mi RNAs,along with their target genes.We will discuss how the aberration in the expression of mi RNAs leads to the formation of CRC by effecting the regulation of their target genes.As mi RNAs are being exploited for diagnosis,prognosis,and monitoring of cancer and other diseases,their high tissue specificity and critical role in oncogenesis make them new biomarkers for the diagnosis and classification of cancer as well as for predicting patients’outcome.Mi RNA signatures have been identified for many human tumors including CRC,and mi RNA-based therapies to treat cancer have been emphasized lately.These will also be discussed in this review.Shan Muhammad Kavanjit Kaur Rui Huang Qian Zhang Paviter Kaur Hamza Obaid Yazdani Muhammad Umar Bilal Jiang Zheng Liu Zheng Xi-Shan Wang 2014World Journal of Gastroenterology2014,20,45:13
2Frequency control of future power systems: reviewing and evaluating challenges and new control methods显示文摘Integration of more renewable energy resources introduces a challenge in frequency control of future power systems.This paper reviews and evaluates the possible challenges and the new control methods of frequency in future power systems.Different types of loads and distributed energy resources(DERs) are reviewed.A model representation of a population of the water heater devices for the demand side frequency response is considered.A model representation of a population of battery energy storage system(BESS)-based DERs such as smart electric vehicles(EVs) charging, large-scale BESSs, and residential and non-residential BESSs, are highlighted.The simplified Great Britain power system and the 14-machine South-East Australian power system were used to demonstrate the effectiveness of the new methods in controlling power system frequency following a disturbance.These new methods are effective in recovering the fallen frequency response and present a great potential in controlling the frequency in future power systems.Zeyad Assi OBAID Liana M.CIPCIGAN Lahieb ABRAHIM Mazin T.MUHSSIN 2019Journal of Modern Power Systems and Clean Energy2019,7,1:8
3Novel therapy for non-cirrhotic hyperammonemia due to a spontaneous splenorenal shunt显示文摘Spontaneous splenorenal shunts in the absence of cirrhosis have rarely been reported as a cause hyperammonemia with encephalopathy. Several closure techniques of such lesions have been described. Here we report a case of a patient with no history of liver disease who developed significant confusion. After an extensive workup, he was found to have hyperammonemia and encephalopathy due to formation of a spontaneous splenorenal shunt. There was no evidence of cirrhosis on biopsy or imaging and no portal hypertension when directly measured. The shunt was 18 mm and too large for embolization so the segment of the splenic vein between the portal vein and the shunt was occluded using an Amplatzer plug. Thus, the superior mesenteric flow was directed entirely to the liver. After interventional radiology closure of the shunt using this technique there was complete resolution of symptoms.The case represents the first report of a successful closure of splenorenal shunt via percutaneous embolization of the splenic vein with an amplatzer plug using a common femoral vein approach.Shari S Rogal Angela Hu Rupal Bi Obaid Shaikh 2014World Journal of Gastroenterology2014,20,25:5
4Celecoxib-induced cholestatic liver failure requiring orthotopic liver transplantation显示文摘Selective cyclooxygenase-2 (COX-2) inhibitors are widely used due to their efficacy and good safety profile. However, recent case reports have described varying degrees of liver injuries associated with the use of COX-2 inhibitors. We report the case of a patient who developed acute cholestatic hepatitis progressing to hepatic failure requiring liver transplantation, following a 3-d course of celecoxib for treatment of generalized muscle aches and pains. The clinical presentation, the laboratory data, as well as the liver histopathology were supportive of the putative diagnosis of drug induced liver injury.Ihab I El Hajj Shahid M Malik Hany R Alwakeel Obaid S Shaikh Eizaburo Sasatomi Hossam M Kandil 2009World Journal of Gastroenterology2009,15,31:4
5Low-radiation and high image quality coronary computed tomography angiography in “real-world” unselected patients显示文摘AIM To determine the radiation dose and image quality in coronary computed tomography angiography(CCTA)using state-of-the-art dose reduction methods in unselected'real world'patients.METHODS In this single-centre study,consecutive patients in sinus rhythm underwent CCTA for suspected coronary artery disease(CAD)using a 320-row detector CT scanner.All patients underwent the standard CT acquisition protocol at our institute(Morriston Hospital)a combination of dose saving advances including prospective electrocardiogram-gating,automated tube current modulation,tube voltage reduction,heart rate reduction,and the most recent novel adaptive iterative dose reconstruction 3D(AIDR3D)algorithm.The cohort comprised real-world patients for routine CCTA who were not selected on age,body mass index,or heart rate.Subjective image quality was graded on a 4-point scale(4=excellent,1=non-diagnostic).RESULTS A total of 543 patients were included in the study with a mean body weight of 81±18 kg and a pre-scan mean heart rate of 70±11 beats per minute(bpm).When indicated,patients received rate-limiting medication with an oral beta-blocker followed by additional intravenous beta-blocker to achieve a heart rate below 65 bpm.The median effective radiation dose was 0.88 mSv(IQR,0.6-1.4 mSv)derived from a Dose Length Product of61.45 mGy.cm(IQR,42.86-100.00 mGy.cm).This also includes what we believe to be the lowest ever-reported radiation dose for a routine clinical CCTA(0.18 mSv).The mean image quality(SD)was 3.65±0.61,with a subjective image quality score of 3('good')or above for 93%of patient CCTAs.CONCLUSION Combining a low-dose scan protocol and AIDR3D with a 320-detector row CT scanner can provide high quality images at exceptionally low radiation dose in unselected patients being investigated for CAD.Caryl Elizabeth Richards Stephen Dorman Patricia John Anthony Davies Sharon Evans Tishi Ninan David Martin Sriranj Kannoly Gail Roberts-Davies Mark Ramsey Daniel Rhys Obaid 2018World Journal of Radiology2018,10,10:3
6碱木质素对EVA复合材料力学性能的影响显示文摘将两种不同的碱木质素(Lignin A和Lignin B)分别与乙烯-乙酸乙烯酯共聚物(EVA)在转矩流变仪中共混后,经平板硫化仪热压成片制得Lignin/EVA复合材料。探究了两种碱木质素的理化性质及其对Lignin/EVA复合材料力学性能的影响。傅里叶红外光谱分析(FT-IR)表明Lignin A以紫丁香基基本结构单元为主,Lignin B则以愈创木基、紫丁香基基本结构单元为主;Lignin/EVA复合材料的力学性能测试结果表明Lignin A/EVA复合材料的力学性能比Lignin B/EVA复合材料的力学性能好;扫描电子显微镜(SEM)测试结果表明Lignin A与EVA的共混相容性较Lignin B与EVA的共混相容性好。汪巧蕾 郑艳 丁纪恒 OBAID Ur Rahman 余海斌 吕瑾 苏胜培 2018精细化工中间体2018,48,3:2
7Development of bis-thiobarbiturates as successful urease inhibitors and their molecular modeling studies显示文摘Bis-thiobarbiturate derivatives 1–15 have been synthesized, characterized by1 HNMR and EI-MS and screened for urease inhibition. All compounds showed various degree of urease inhibitory activity with IC_(50) values ranging 7.45 0.12 74.24 0.81 mmol/L while the standard thiourea behaved normally(IC_(50) = 21.10 0.12). Compounds 1(IC_(50) = 7.45 0.12 μmol/L), 9(IC_(50) = 18.17 1.03 μmol/L) and 13(IC_(50) = 8.61 0.45 μmol/L) showed excellent urease inhibitory activity in the series. Molecular modeling studies were performed to understand the binding site with the bimetallic nickel center of the enzyme.Structure-activity relationship has also been established for these compounds. This study identified bisthiobarbiturate as a novel class of urease inhibitors.Fazal Rahim Muhammad Ali Shifa Ullah Umer Rashid Hayat Ullah Muhammad Taha Muhammad Tariq Javed Wajid Rehman Aftab Ahmad Khan Obaid Ur Rahman Abid Muhammad Bilal 2016Chinese Chemical Letters2016,27,5:2
8ERP系统在中国企业实施的关键成功要素显示文摘本文定性研究关键成功因素法(CSF)与ERP系统在中国企业实施的相互联系,该研究主要采用多案例研究方法,数据通过对4个组织进行问卷调查获得。5个命题是基于现有文献中归纳的确定因素提出的,并且这些命题已经在其他案例研究中得到了证实。本研究旨在探讨,以往的学术研究中得到认同的关键成功因素法,在中国企业实施ERP系统的情况下,是否值得慎重考虑。研究结果表明,在实施ERP系统的情况下,培训的质量和数量,高层管理的支持和参与以及供应商的支持,这3个因素十分重要并且是中国企业的实际考核因素。Muhammad Aamir Obaid Khattak 佘元冠 李秋梦 Zahid A. Memon Nausheen Sayed Muhammad Irfan 2013中国管理信息化2013,16,19:2
9Pancreatic pseudocyst or a cystic tumor of the pancreas?显示文摘Pancreatic pseudocysts are the most common cystic lesions of the pancreas and may complicate acute pancreatitis, chronic pancreatitis, or pancreatic trauma. While the majority of acute pseudocysts resolve spontaneously, few may require drainage. On the other hand, pancreatic cystic tumors, which usually require extirpation, may disguise as pseudocysts. Hence, the distinction between the two entities is crucial for a successful outcome. We conducted this study to highlight the fundamental differences between pancreatic pseudocysts and cystic tumors so that relevant management plans can be devised. We reviewed the data of patients with pancreatic cystic lesions that underwent intervention between June 2007 and December 2010 in our hospital. We identified 9 patients(5 males and 4 females) with a median age of 40 years(range, 30–70 years). Five patients had pseudocysts, 2 had cystic tumors, and 2 had diseases of undetermined pathology. Pancreatic pseudocysts were treated by pseudocystogastrostomy in 2 cases and percutaneous drainage in 3 cases. One case recurred after percutaneous drainage and required pseudocystogastrostomy. The true pancreatic cysts were serous cystadenoma, which was treated by distal pancreatectomy, and mucinous cystadenocarcinoma, which was initially treated by drainage, like a pseudocyst, and then by distal pancreatectomy when its true nature was revealed. We conclude that every effort should be exerted to distinguish between pancreatic pseudocysts and cystic tumors of the pancreas to avoid the serious misjudgement of draining rather than extirpating a pancreatic cystic tumor. Additionally, percutaneous drainage of a pancreatic pseudocyst is a useful adjunct that may substitute for surgical drainage.Mohammad Ezzedien Rabie Ismail El Hakeem Mohammad Saad Al Skaini Ahmad El Hadad Salim Jamil Mian Tahir Shah Mahmoud Obaid 2014Chinese Journal of Cancer2014,33,2:2
10Caroli' s Disease and Orthotopic Liver Transplantation 显示文摘Shahid Habib Obaid Shakil Osvaldo F Couto 2006Liver Transp12006,12,3:1
11Pentoxifylline Improves Short-term Survival in Severe Acute Alcoholic Hepatitis: A Double-Blind, Placebo-Controlled Trial显示文摘Evangelos Akriviadis Ravi Botla William Briggs Steven Han Telfer Reynolds Obaid Shakil 2000Gastroenterology2000,,6:1
12Anterior surgical interventions in spinal tuberculosis 显示文摘Obaid ur Rahman Ahmad S Hussain T 2009J Coll Physicians Surg Pak2009,19,8:1
13Effect of race and HIV co-infection upon treatment prescription for hepatitis C virus显示文摘Adeel A. Butt Joel Tsevat Anthony C. Leonard Obaid S. Shaikh Deborah McMahon Uzma A. Khan Zachariah Dorey-Stein Vincent Lo Re 2008International Journal of Infectious Diseases2008,,4:1
14Rates of HCV Treatment Eligibility Among HCV-Monoinfected and HCV/HIV-Coinfected Patients in Tertiary Care Referral Centers显示文摘Adeel Butt Uzma Khan Obaid Shaikh Deborah McMahon Zachariah Dorey-Stein Joel Tsevat Vincent Lo Re III 2009HIV Clinical Trials2009,,1:1
15Studying some hematological changes in patients with pulmonary tu- berculosis in Babylon Govemorate 显示文摘Muhammad Obaid Al-muhammada Hayder Gali A1-Shammery 2011Medical Journal of Babylon2011,8,4:1
16Outcomes of laparoscopic colorectal surgery: data from the Nationwide Inpatient Sample 2009显示文摘Celeste Y. Kang Obaid O. Chaudhry Wissam J. Halabi Vinh Nguyen Joseph C. Carmichael Michael J. Stamos Steven Mills 2012The American Journal of Surgery2012,,6:1
17Non-invasive imaging of atherosclerosis显示文摘Joshi FR Lindsay AC Obaid DR 2012Eur Heart J Cardiovase Imaging2012,13,3:1
18Atherosclerotic plaque composition and classification identified by coronary computed tomography:assessment of computed tomography-generated plaque maps compared with virtual histology intravascular ultrasound and histology显示文摘Obaid DR Calvert PA Gopalan D 0,,:1
19Shot peening mechanics: experimental and theoretical analysis 显示文摘OBAID Y F 1995Mechanics of Materials1995,,19:1
20Surgical management of epithelial parotiel tamours 显示文摘Obaid MA Yusuf A 2004J Coil physicians Surg Pak2004,14,7:1
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