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141篇 您的检索式:作者名="SALEM F"
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1Radioembolization for the treatment of unresectable hepatocellular carcinoma:A clinical review显示文摘Hepatocellular carcinoma(HCC)is the sixth most common cancer in the world.The majority of patients with HCC present with unresectable disease.These patients have historically had limited treatment options secondary to HCC demonstrating chemoresistance to the currently available systemic therapies.Additionally, normal liver parenchyma has shown intolerance to tumoricidal radiation doses,limiting the use of external beam radiation.Because of these limitations,novel percutaneous liver-directed therapies have emerged. The targeted infusion of radioactive microspheres (radioembolization)represents one such therapy. Radioembolization is a minimally invasive transcatheter therapy through which radioactive microspheres are infused into the hepatic arteries that supply tumor. Once infused,these microspheres traverse the hepatic vascular plexus and selectively implant within the tumor arterioles.Embedded within the arterioles, the 90Y impregnated microspheres emit high energy and low penetrating radiation doses selectively to the tumor.Radioembolization has recently shown promise for the treatment of patients with unresectable HCC. The objective of this review article is to highlight twocurrently available radioembolic devices(90Y,188Rh)and provide the reader with a recent review of the literature.Saad M Ibrahim Robert J Lewandowski Kent T Sato Vanessa L Gates Laura Kulik Mary F Mulcahy Robert K Ryu Reed A Omary Riad Salem 2008World Journal of Gastroenterology2008,14,11:14
2Diffusion-weighted magnetic resonance imaging to predict response of hepatocellular carcinoma to chemoembolization显示文摘AIM: To investigate whether intra-procedural diffusion- weighted magnetic resonance imaging can predict response of hepatocellular carcinoma (HCC) during trans- catheter arterial chemoembolization (TACE). METHODS: Sixteen patients (15 male), aged 59 ±11 years (range: 42-81 years) underwent a total of 21 separate treatments for unresectable HCC in a hybrid magnetic resonance/interventional radiology suite. Ana- tomical imaging and diffusion-weighted imaging (b = 0, 500 s/mm2) were performed on a 1.5-T unit. Tumor enhancement and apparent diffusion coefficient (ADC, mm2/s) values were assessed immediately before and at 1 and 3 mo after TACE. We calculated the percent change (PC) in ADC values at all time points. We compared follow-up ADC values to baseline values using a paired t test (α = 0.05). RESULTS: The intra-procedural sensitivity, specificity, and positive and negative predictive values (%) for detecting a complete or partial 1-mo tumor response using ADC PC thresholds of ±5%, ±10%, and ±15% were 77, 67, 91, and 40; 54, 67, 88, and 25; and 46, 100, 100, and 30, respectively. There was no clear predictive value for the 3-mo follow-up. Compared to baseline, the immediate post-procedure and 1-mo mean ADC values both increased; the latter obtaining statistical significance (1.48 ± 0.29 mm2/s vs 1.65 ± 0.35 × 10-3 mm2/s, P < 0.014). CONCLUSION: Intra-procedural ADC changes of > 15% predicted 1-mo anatomical HCC response with the greatest accuracy, and can provide valuable feedback at the time of TACE.Johnathan C Chung Neel K Naik Robert J Lewandowski Mary F Mulcahy Laura M Kulik Kent T Sato Robert K Ryu Riad Salem Andrew C Larson Reed A Omary 2010World Journal of Gastroenterology2010,16,25:13
3Updates in the pathophysiological mechanisms of Parkinson's disease: Emerging role of bone marrow mesenchymal stem cells显示文摘AIM: To explore the approaches exerted by mesenchymal stem cells(MSCs) to improve Parkinson's disease(PD) pathophysiology.METHODS: MSCs were harvested from bone marrowof 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 done.RESULTS: 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) and MCP-1(89.6 ± 2.0 vs 112.1 ± 1.9, P < 0.05) levels associated with significant increase in serum BDNF(3663 ± 17.8 vs 2905 ± 72.9, P < 0.05) and brain DA(874 ± 15.0 vs 599 ± 9.8, P < 0.05) levels as well as brain TH(1.18 ± 0.004 vs 0.54 ± 0.009, P < 0.05) and nestin(1.29 ± 0.005 vs 0.67 ± 0.006, P < 0.05) genes expression levels. In addition to, producing insignificant increase in the number of positive cells for survivin(293.2 ± 15.9 vs 271.5 ± 15.9, P > 0.05) expression. Finally, the brain sections showed intact histological structure of the striatum as a result of treatment with BM-MSCs. CONCLUSION: The current study sheds light on the therapeutic potential of BM-MSCs against PD pathophysiology via multi-mechanistic actions.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 2016World Journal of Stem Cells2016,8,3:9
4Resection of pancreatic cystic neoplasms in recurrent acute pancreatitis prevents recurrent pancreatitis but does not identify more malignancies显示文摘BACKGROUND Recurrent acute pancreatitis(RAP)may be a presenting feature of and an indication for resection of pancreatic cysts,including intra-ductal papillary mucinous neoplasm(IPMN).Few data are available regarding the prevalence of malignancy and post-operative RAP in this population.AIM To study the role of resection to help prevent RAP and analyze if presentation as RAP would be a predictor for malignancy.METHODS This retrospective study assessed 172 patients who underwent surgical resection of pancreatic cystic neoplasms at a university hospital between 2002 and 2016.The prevalence of preoperative high-risk cyst features,and of neoplasia was compared between patients with and without RAP.To identify the cause of pancreatitis,all the patients had a detailed history of alcohol,smoking,medications obtained,and had cross-sectional imaging(contrast-enhanced computed tomography/magnetic resonance imaging)and endoscopic ultrasound to look for gallstone etiology and other structural causes for pancreatitis.The incidence of RAP post-resection was the primary outcome.RESULTS IPMN accounted for 101 cases(58.7%){[branch duct(BD)59(34.3%),main duct(MD)42](24.4%)}.Twenty-nine(16.9%)presented with RAP(mean 2.2 episodes):15 had BD-IPMN,8 MD-IPMN,5 mucinous cystic neoplasm and 1 serous cystic neoplasm.Malignancy was similar among those with vs without RAP for all patients[6/29(20.7%)vs 24/143(16.8%)]and IPMN patients[6/23(26.1%)vs 23/78(29.5%)],although tended to be higher with RAP in BD-IPMN,[5/15(33.3%)vs 3/44(6.8%),P=0.04].At mean follow-up of 7.2 years,1(3.4%)RAP patient had post-resection RAP.The mean episodes of acute pancreatitis before vs after surgery were 3.4 vs 0.02(P<0.0001).CONCLUSION Malignancy was not increased in patients with pancreatic cystic neoplasms who have RAP compared to those without RAP.In addition,specific cyst characteristics were not clearly associated with RAP.The incidence of RAP was markedly decreased in almost all patients following cyst resection.Thiruvengadam Muniraj Harry R Aslanian Loren Laine Priya A Jamidar James F Farrell Kisha A Mitchell Ronald R Salem 2021World Journal of Gastroenterology2021,27,15:3
5Efficacy and safety of treatment of hepatitis C virus infection in renal transplant recipients显示文摘AIM: To assess the efficacy and safety of combinedpegylated interferon and ribavirin therapy in hepatitis C virus (HCV) infection in renal transplant recipients. METHODS: This is a retrospective chart review of post renal transplant patients who were positive for anti-HCV and HCV-RNA, and who have received treatment with combination of pegylated interferon and ribavirin between October 2003 and December 2008. Only patients with stable graft function and absence of evidence of cirrhosis and who received the therapy for continuous 48 wk were included. Nineteen patients (13 male and 6 female) were identified and included. The patient's complete blood count, liver and kidney prof ile, and cal- culated glomerular f iltration rate (GFR) were monitored every 6-8 wk while on treatment. HCV-RNA was tested at 12 wk for early virological response, at 48 wk for end of treatment response (ETR), and then retested at 24, and 48 wk after completion of therapy for sustained virological response (SVR). Liver biopsies were obtained before treatment from all patients and graft kidney biopsies were performed as required. RESULTS: Of the entire cohort, 9 patients (47.4%) showed an ETR and 8 had SVR (42.1%). Of the 8 patients with abnormal alanine aminotransferase (ALT) levels at baseline, 78.9% had their ALT normalized (including the virological non responders). ALT was normal in all responders at the end of therapy and at 24 wk post therapy (100%). Only one patient (5.3%) developed an increase in creatinine and decline in GFR from baseline towards the end of treatment. This patient's kidney biopsy revealed borderline rejection. There was no impact on response by HCV-genotype, initial HCV RNA load, age or sex of the patient or duration post transplant before commencement of therapy. All patients tolerated treatment in the same way as non-transplant with no unusual or increased occurrence of side effects. CONCLUSION: The combination of pegylated interferon and ribavirin is effective in suppressing HCV-RNA,with a low risk of graft rejection or failure in HCV infected renal transplant recipients.Abdulrahman A Aljumah Mohamed A Saeed Ahmed I Al Flaiw Ibrahim H Al Traif Abduljaleel M Al Alwan Salem H Al Qurashi Ghormallah A Al Ghamdi Fayez F Al Hejaili Mohammed A Al Balwi Abdulla A Al Sayyari 2012World Journal of Gastroenterology2012,18,1:2
6Developing a high performance superoxide dismutase based electrochemical biosensor for radiation dosimetry of thallium 201显示文摘Salem F Tavakoli H Sadeghi M 2014Radiat Phys Chem2014,102,:1
7Diagenesis and reservoir quality evolution of fluvial sandstones during progressive burial and uplift : evi- dence from the Upper Jurassic Boipeba Member, Recrncavo basin, Northeastern Brazil显示文摘Salem A M Morad S Mato L F 2000AAPG Bulletin2000,84,7:1
8Novel uses of SiOz nano-lubrication system in hard turning process of hardened steel AISI4140 for less tool wear, surface roughness and oil consumption显示文摘Sayuti M Sarhan A A D Salem F 2014Journal of Clea- ner Production2014,67,6:1
9Hepatitis C virus infection in Lebanese patients with B-cell non-Hodgkin lymphoma 显示文摘Salem Z Nuwaiyri-Salti N Ramlawi F 2003Eur J Epidemiol2003,18,:1
10Common charge-shift mutation Glu65Lys in K + channel beta(1)-Subunit KCNMB1:pleiotropic con-sequences for glomerular filtration rate and progressive renal disease 显示文摘Chen Y Salem R M Rao F 2010Am J Nephrol2010,32,5:1
11Choked flow in externally press-urized spherical gas bearings显示文摘SALEM E KHALIL F 1978Wear1978,47,1:1
12Cigarette smoke metabolically promotes cancer, via autophagy and premature aging in the host stromal microenvironment 显示文摘Salem A F A1-Zoubi M S Whitaker-Menezes D 2013Cell Cycle2013,12,5:1
13Ant (Formica exectoides) pedoturbaeion in a forest soil显示文摘Salem M Hole F Soil Sci Soe Am0,32,:1
14Choked flow in externally pressurized spherical gas bearings 显示文摘SALEM E KHALIL F 1978Wear1978,47,1:1
15Crocin prevents patulininduced acute toxicity in cardiac tissues via the regulation of oxidative damage and apoptosis显示文摘Boussabbeh M Ben Salem I Neffati F Naj ar MF Bacha H Abid-Essefi S 2015J Biochem Mol Toxicol2015,29,10:1
16Metabolic response after intraarterial 90Y-glass microsphere treatment for colorectal liver metastases: comparison of quantitative and visual analyses by 18F-FDG PET显示文摘Wong CY Salem R Qing F 2004J Nucl Med2004,45,11:1
17Hemodynamic monitoring by echocardiography in the ICU: the role of the new echo techniques显示文摘Salem R Vallee F Rusca M 2008Curr Opin Criti Care2008,14,5:1
18Full-scale application of the BABE technology显示文摘Salem S Berends D H J G van der Roest H F 2004Water Sci Tech2004,50,7:1
19Neurophysiologic changes in neurologically asymptomatic hypothyroid patients: a prospective cohort study 显示文摘Salem K Ammari F 2006J Clin Neurophysiol2006,23,6:1
20Protective role of Egyptian propolis against tumor in mice显示文摘Om-Ali Y El-khawaga Tarek A Salem Mohamed F Elshal 2003Clinica Chimica Acta2003,,1:1
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