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Current technical aspects of oncological hepatic surgery

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Hepatobiliary & Pancreatic Diseases International 2017年第2期16卷 147-154页

作者： ahmed I salem Emily R Winslow Department of Surgery University of Wisconsin School of Medicine and Public Health 600 Highland Avenue BX7375 CLINICAL SCIENCE CNTR Madison WI 53792-7375 USA

BACKGROUND： With the recent advances in oncological hepatic surgery, major liver resections became more widely utilized procedures. The era of modern hepatic surgery witnessed improvements in patients care in preoperative, intraoperative and postoperative aspects. This significantly improved surgical outcomes regarding morbidity and mortality. This review article focuses on the recent advances in oncological hepatic *** SOURCES： This review includes only data from peer-reviewed articles and journals. Pub Med database was utilized as the primary source of the supporting literature to this review article on the latest advances in oncological hepatic *** and high sensitivity search strategies were performed to search related studies exhaustively up till June 2016. We critically and independently assessed over 50 recent publications written on this topic according to the selection criteria and quality assessment standard. We paid particular attention to the studies published in high impact journals that address the use of the surgical techniques mentioned in the articles in well-known ***： Among all utilized approaches aiming at the preoperative assessment of the liver function, Child-TurcottePugh classification remains the most reliable tool correlating with survival outcome. Although the primary radiological tools including ultrasonography, computed tomography and magnetic resonance imaging remain on top of the menu of tests utilized in assessment of focal hepatic lesions, intraoperative ultrasonography projects to be a powerful additional tool in terms of sensitivity and specificity compared to the other conventional techniques in assessment of the liver inthe operative setting, a procedure that can change the surgical strategy in 27.2% of the cases and consequently improve the oncological surgical outcome. In addition to the conventional surgical techniques of liver resection and portal vein embolization, associating liver

关键词： liver surgery liver neoplasms technical aspects oncosurgery liver metastasis

SOME COMPLETELY MONOTONIC FUNCTIONS ASSOCIATED WITH THE q-GAMMA AND THE q-POLYGAMMA FUNCTIONS

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Acta Mathematica Scientia 2015年第5期35卷 1214-1224页

作者： ahmed salem Eid S.KAMEL Department of Basic Science Faculty of Information Systems & Computer ScienceOctober 6 University Department of Mathematics Faculty Science Al Jouf University

In this paper, the q-analogue of the Stirling formula for the q-gamma function （Moak formula） is exploited to prove the complete monotonicity properties of some functions involving the q-gamma and the q-polygamma functions for all real number q 〉 0. The monotonicity of these functions is used to establish sharp inequalities for the q-gamma and the q-polygamma functions and the q-Harmonic number. Our results are shown to be a generalization of results which were obtained by Selvi and Batir [23].

关键词： completely monotonic functions inequalities q-gamma function q-polygammafunction

Treatment of Prostatorectal Fistula by Transanorectal Route: About an Observation

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Sickle cell cholangiopathy:An endoscopic retrograde cholangiopancreatography evaluation

Open Journal of Urology（泌尿学期刊） 2024年第4期 262页

作者： Mohamed Mahmoud Beya ahmed salem Terouzi Y. Tfeil Diagana Mouhamadou

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World Journal of Gastroenterology 2009年第42期15卷 5316-5320页

作者： Hussain Issa Ali Al-Haddad ahmed Al-salem Department of Internal Medicine Division of GastroenterologyKing Fahad Specialist HospitalDammam 31444Saudi Arabia Department of Internal Medicine Qatif Central HospitalQatif 31911Saudi Arabia Department of Pediatric Surgery Maternity and Children HospitalDammamQatif 31911Saudi Arabia

AIM:To evaluate the role of endoscopic retrograde cholangiopancreatography(ERCP) in patients with sickle cell disease(SCD) .METHODS:Two hundred and twenty four SCD patients with cholestatic jaundice(CJ) had *** indications for ERCP were based on clinical and biochemical evidence of CJ and ultrasound ***:Two hundred and forty ERCPs were *** indications for ERCP were:CJ only in 79,CJ and dilated bile ducts without stones in 103,and CJ and bile duct stones in *** those with CJ only,ERCP was normal in 42(53.2%) ,and 13(16.5%) had dilated bile ducts without an obstructive *** the remaining 22,there were bile duct stones with or without *** those with CJ,dilated bile ducts and no stones,ERCP was normal in 17(16.5%) ,and 28(27.2%) had dilated bile ducts without an obstructive *** the remaining 58,there were bile ducts stones with or without *** those with CJ and bile duct stones,ERCP was normal in two(4.8%) ,and 14(33.3%) had dilated bile ducts without an obstructive *** the remaining 26,there were bile duct stones with or without ***:Considering the high frequency of biliary sludge and bile duct stones in SCD,endoscopic sphincterotomy might prove helpful in these patients.

关键词： Sickle cell disease Hepatobiliary Cholestsatic jaundice Sickle cell hepatopathy Sickle cell cholangiopathy Endoscopic retrograde cholangiopancreatography

Updates in the pathophysiological mechanisms of Parkinson's disease: Emerging role of bone marrow mesenchymal stem cells

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World Journal of Stem Cells 2016年第3期8卷 106-117页

作者： Hanaa H ahmed ahmed M salem Hazem M Atta Emad F Eskandar Abdel Razik H Farrag Mohamed A Ghazy Neveen A salem Hadeer A Aglan Department Medical Research Division National Research Centre Biochemistry Department Faculty of Science Ain Shams University Clinical Biochemistry Department Faculty of Medicine King Abdulaziz University Medical Biochemistry and Molecular Biology Department Faculty of Medicine Cairo University Pathology Department Medical Research Division National Research Centre Narcotics Ergogenic aids and Poisons Department Medical Research Division National Research Centre

AIM: To explore the approaches exerted by mesenchymal stem cells (MSCs) to improve Parkinson’s disease (PD) ***: MSCs were harvested from bone marrow of femoral bones of male rats, grown and propagated in culture. Twenty four ovariectomized animals were classified into 3 groups: Group (1) was control, Groups (2) and (3) were subcutaneously administered with rotenone for 14 d after one month of ovariectomy for induction of PD. Then, Group (2) was left untreated, while Group (3) was treated with single intravenous dose of bone marrow derived MSCs (BM-MSCs). SRY gene was assessed by PCR in brain tissue of the female rats. Serum transforming growth factor beta-1 (TGF-β1), monocyte chemoattractant protein-1 (MCP-1) and brain derived neurotrophic factor (BDNF) levels were assayed by ELISA. Brain dopamine DA level was assayed fluorometrically, while brain tyrosine hydroxylase (TH) and nestin gene expression were detected by semi-quantitative real time PCR. Brain survivin expression was determined by immunohistochemical procedure. Histopathological investigation of brain tissues was also ***: BM-MSCs were able to home at the injured brains and elicited significant decrease in serum TGF-β1 (489.7 ± 13.0 vs 691.2 ± 8.0, P 0.05) expression. Finally, the brain sections showed intact histologica

关键词： Parkinson’s disease Pathophysiology Bone marrow derived mesenchymal stem cells Rotenone Anti-inflammatory action Ovariectomy Anti-apoptotic effect Neurogenic potential

Role of ERCP in the era of laparoscopic cholecystectomy for the evaluation of choledocholithiasis in sickle cell anemia

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World Journal of Gastroenterology 2011年第14期17卷 1844-1847页

作者： Hussain Issa Arabia ahmed H Al-salem Department of Internal Medicine King Fahad Specialist HospitalDammamQatif 31911Saudi Department of Pediatric Surgery Maternity and Children HospitalDammamQatif 31911Saudi Arabia

AIM:To evaluate the role of endoscopic retrograde cholangiopancreatography (ERCP) for choledocholithiasis in patients with sickle cell anemia (SCA) in the era of laparoscopic cholecystectomy (LC). METHODS:Two hundred and twenty four patients (144 male,80 female; mean age,22.4 years; range,5-70 years) with SCA underwent ERCP as part of their evaluation for cholestatic jaundice (CJ). The indications for ERCP were:CJ only in 97,CJ and dilated bile ducts on ultrasound in 103,and CJ and common bile duct (CBD) stones on ultrasound in 42. RESULTS:In total,CBD stones were found in 88 (39.3%) patients and there was evidence of recent stone passage in 16. Fifteen were post-LC patients. These had endoscopic sphincterotomy and stone extraction. The remaining 73 had endoscopic sphincterotomy and stone extraction followed by LC without an intraoperative ***:In patients with SCA and cholelithiasis,ERCP is valuable whether preoperative or postoperative,and in none was there a need to perform intraoperative cholangiography. Sequential endoscopic sphincterotomy and stone extraction followed by LC is beneficial in these patients. Endoscopic sphincterotomy may also prove to be useful in these patients as it may prevent the future development of biliary sludge and bile duct stones.

关键词： Sickle cell anemia Cholelithiasis Choledocholithiasis Laparoscopic cholecystectomy Cholangiography Endoscopic retrograde cholangiopancreatography

International Human Resource Management Case Study of the MNCs in China

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International Human Resource Management Case Study of the MN...

作者：阿马达（Kbeidich ahmed salem）华中师范大学

学位级别：硕士

论文以国际范围内的人力资源管理为题,主要致力于研究各种不同的国际人力资源管理方法,以使得人力资源管理更易于被不同经济体认同和接受。论文为世界各地公司提供各种全球化培训和发展计划的成功案例。论文研究了跨国公司员工的绩效... 详细信息

论文以国际范围内的人力资源管理为题,主要致力于研究各种不同的国际人力资源管理方法,以使得人力资源管理更易于被不同经济体认同和接受。论文为世界各地公司提供各种全球化培训和发展计划的成功案例。论文研究了跨国公司员工的绩效管理以及国际人力资源管理部门所发挥的作用。主要分析国际间的转移动机、不同的转移政策、转移范例以及国际转移的替代方式。论文同时也为跨文化培训和人力资源专家对外派人员设计有效的现金支援项目程序提供广泛的指南。文章最后通过对人员的动力问题、企业文化的内部融合过程的描述,推断出这些因素对在中国的跨国公司管理尤其是人力资源管理方面的影响。

关键词：人力资源管理绩效管理跨国公司

Protracted Adjuvant Temozolomide in Glioblastoma Multiforme

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Journal of Cancer Therapy 2015年第8期6卷 748-758页

作者： ahmed A. Refae ahmed Ezzat Dina ahmed salem Mervat Mahrous Clinical Oncology Department Ain Shams University Cairo Egypt Clinical Oncology Department Al Minia University Al Minia Egypt

Purpose: Radiotherapy with concurrent temozolomide (TMZ), followed by 6 cycles of adjuvant TMZ, is the standard of care for newly diagnosed Glioblastoma Mulltiforme (GBM). However tumor progression is the role with median survival of almost 14 months. With lack of effective second line chemotherapy, many physicians and some guidelines advocate prolonged use of adjuvant TMZ more than 6 months. We conduct this study to test the efficacy of protracted adjuvant conventional dose TMZ over the standard 6 doses of adjuvant TMZ. Material and Methods: This phase II trial enrolled patients newly diagnosed as GBM, older than age 18 years, with a Karnofsky performance score (KPS) of ≥60, Neurological Performance Scale (NPS) of ≤3. Patients were randomly assigned to the standard concurrent chemoradiotherapy (CCRT) followed by 6 cycles of adjuvant TMZ or the same treatment with more than 6 cycles of adjuvant chemotherapy extended as long as the patient in good performance, with no unacceptable toxicity, no signs of disease progression. The primary end point was OS. Results: A total of 59 patients were recruited in the study and were randomized in two arms. 29 patients joined arm 1 aiming at receiving CCRT followed by adjuvant 6 cycles TMZ (6 cycles arm) and 30 joined arm 2 aiming at receiving the same treatment with more than 6 cycles of TMZ (>6 cycles). 16 patients managed to complete the adjuvant 6 cycles in arm 1. 19 patients in arm 2, completed the 6 cycles with additive more doses with a median of 11 cycles (range: 8 - 23 cycles). Median PFS was 12.1 months for (6 cycles) arm, and 18.8 months for (>6 cycles) arm, HR 0.88 (95% CI: 1.185 - 4.901) (P 0.015);the overall survival for (6 cycles) arm was 18.1 months, versus 24.1 months, HR 0.70 (95% CI: 1.007 - 4.037) (P 0.048). No significant added toxicity was notice and the 4 weekly TMZ was well tolerated. Conclusion: This study concluded that protracted adjuvant TMZ after concurrent chemoradiotherapy could be a feasible strateg

关键词： Glioblastoma Multiforme Timozolomide Protracted Course Efficacy

Weinstein Gabor Transform and Applications

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Advances in Pure Mathematics 2012年第3期2卷 203-210页

作者： Hatem Mejjaoli ahmedou Ould ahmed salem Department of Mathematics College of Education King Khalid University Mohayil Kingdom of Saudi Arabia Department of Mathematics College of Sciences King Faisal University Ahsaa Kingdom of Saudi Arabia

In this paper we consider Weinstein operator. We define and study the continuous Gabor transform associated with this operator. We prove a Plancherel formula, an inversion formula and a weak uncertainty principle for it. As applications, we obtain analogous of Heisenberg’s inequality for the generalized continuous Gabor transform. At the end we give the practical real inversion formula for the generalized continuous Gabor transform.

关键词： Weinstein Gabor Transform Practical Real Inversion Formula Kernel Reproducing Theory