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| 1 | Real time endoscopic ultrasound elastography and strain ratio in the diagnosis of solid pancreatic lesions显示文摘AIM To evaluate the accuracy of the elastography score combined to the strain ratio in the diagnosis of solid pancreatic lesions(SPL). METHODS A total of 172 patients with SPL identified by endoscopic ultrasound were enrolled in the study to evaluate the efficacy of elastography and strain ratio in differentiating malignant from benign lesions. The semi quantitative score of elastography was represented by the strain ratio method. Two areas were selected, area(A) representing the region of interest and area(B) representing the normal area. Area(B) was then divided by area(A). Sensitivity, specificity, positive predictive value(PPV), negative predictive value(NPV), and accuracy were calculated by comparing diagnoses made by elastography, strain ratio and final diagnoses.RESULTS SPL were shown to be benign in 49 patients and malignant in 123 patients. Elastography alone had a sensitivity of 99%, a specificity of 63%, and an accuracy of 88%, a PPV of 87% and an NPV of 96%. The best cut-off level of strain ratio to obtain the maximal area under the curve was 7.8 with a sensitivity of 92%, specificity of 77%, PPV of 91%, NPV of 80% and an accuracy of 88%. Another estimated cut off strain ratio level of 3.8 had a higher sensitivity of 99% and NPV of 96%, but with less specificity, PPV and accuracy 53%, 84% and 86%, respectively. Adding both elastography to strain ratio resulted in a sensitivity of 98%, specificity of 77%, PPV of 91%, NPV of 95% and accuracy of 92% for the diagnosis of SPL. CONCLUSION Combining elastography to strain ratio increases the accuracy of the differentiation of benign from malignant SPL. | Hussein Okasha Shaimaa Elkholy Ramy El-Sayed Mohamed-Naguib Wifi Mohamed El-Nady Walid El-Nabawi Waleed A El-Dayem Mohamed I Radwan Ali Farag Yahya El-sherif Emad Al-Gemeie Ahmed Salman Mohamed El-Sherbiny Ahmed El-Mazny Reem E Mahdy | 2017 | World Journal of Gastroenterology2017，23，32： | 11 |
| 2 | Effect of heat input and filler metals on weld strength of gas tungsten arc welding of AISI 316 weldments显示文摘The present work investigates the effect of filler metals and heat input on weld bead geometry and mechanical properties of alloy316 welded by using GTAW.ER309 L,ER316 L and ERNi Cr Mo-3 filler metals,are applied to study their effect on the weldment.Weld defects are examined using radiographic testing.The mechanical properties of welds are evaluated through uniaxial testing,hardness measuring,and bending test.The mechanical properties and cooling rate decrease with increasing heat input.Tensile strength,yield stress and percentage elongation of weldments using three fillers are determined.Best results are obtained using ERNi Cr Mo-3.Besides,weld nugget area,cooling time and solidification time increases with increasing heat input.Finally,applying bending test on weld samples,cracks,tearing and surface defects are not observed. | Essam Ahmed Ramy Ahmed A EL-Nikhaily A R S Essa | 2020 | China Welding2020，29，1： | 7 |
| 3 | A randomized open-label trial of on-demand rabeprazole vs ranitidine for patients with non-erosive reflux disease显示文摘AIM:To compare the efficacy of the proton-pump inhibitor,rabeprazole,with that of the H 2-receptor antagonist,ranitidine,as on-demand therapy for relieving symptoms associated with non-erosive reflux disease(NERD).METHODS:This is a single center,prospective,randomized,open-label trial of on-demand therapy with rabeprazole(group A) vs ranitidine(group B) for 4 wk.Eighty-three patients who presented to the American University of Beirut Medical Center with persistent gastroesophageal reflux disease(GERD) symptoms and a normal upper gastrointestinal endoscopy were eligible for the study.Patients in group A(n = 44) were allowed a maximum rabeprazole dose of 20 mg twice daily,while those in group B(n = 39) were allowed a maximum ranitidine dose of 300 mg twice daily.Efficacy was assessed by patient evaluation of global symptom relief,scores of the SF-36 quality of life(QoL) questionnaires,total number of pills used,and number of medication-free days.RESULTS:Among the 83 patients who were enrolled in the study,76 patients(40 in the rabeprazole group and 36 in the ranitidine group) completed the 4-wk trial.Baseline characteristics were comparable between both groups.After 4 wk,there was no significant difference in the subjective global symptom relief between the rabeprazole and the ranitidine groups(71.4% vs 65.4%,respectively;P = 0.9).There were no statistically significant differences between mean cumulative scores of the SF-36 QoL questionnaire for the two study groups(rabeprazole 22.40 ± 27.53 vs ranitidine 17.28 ± 37.06;P = 0.582).There was no significant difference in the mean number of pills used(rabeprazole 35.70 ± 29.75 vs ranitidine 32.86 ± 26.98;P = 0.66).There was also no statistically significant difference in the mean number of medication-free days between both groups.CONCLUSION:Rabeprazole has a comparable efficacy compared to ranitidine when given on-demand for the treatment of NERD.Both medications were associated with improved quality of life. | Abdallah A Kobeissy Jana G Hashash Faek R Jamali Assaad M Skoury Reham Haddad Sarah El-Samad Rami Ladki Rola Aswad Assaad M Soweid | 2012 | World Journal of Gastroenterology2012，18，19： | 4 |
| 4 | Assessment of lnc RNA GAS5, lnc RNA HEIH, lnc RNA BISPR and its m RNA BST2 as serum innovative non-invasive biomarkers: Recent insights into Egyptian patients with hepatitis C virus type 4显示文摘BACKGROUND Hepatitis C virus(HCV)infection and its consequent complications are undeniably a public health burden worldwide,particularly in Egypt.Emerging evidence suggests that many lncRNAs have relevant roles in viral infections and antiviral responses.AIM To investigate the expression profiles of circulating lncRNAGAS5,lncRNAHEIH,lncRNABISPR and mRNABST2 in naïve,treated and relapsed HCV Egyptian patients,to elucidate relation to HCV infection and their efficacy as innovative biomarkers for the diagnosis and prognosis of HCV GT4.METHODS One hundred and thirty HCV-infected Egyptian patients and 20 healthy controls were included in this study.Serum lncRNAs and mRNABST2 were measured using quantitative real-time polymerase chain reaction(qRT-PCR).RESULTS Our results indicated that serum lncRNAGAS5 and LncRNABISPR were upregulated,whereas mRNA BST2 and LncRNA HEIH were downregulated in naïve patients.In contrast,HCV patients treated with sofosbuvir and simeprevir;with sofosbuvir and daclatasvir;or with sofosbuvir,daclatasvir and ribavirin exhibited lower levels of lncRNAGAS5 and lncRNABISPR with higher mRNABST2 compared to naïve patients.Notably,patients relapsed from sofosbuvir and simeprevir showed higher levels of these lncRNAs with lower mRNABST2 compared to treated patients.LncRNAGAS5 and lncRNABISPR were positively correlated with viral load and ALT at P<0.001,whereas mRNABST2 was negatively correlated with viral load at P<0.001 and ALT at P<0.05.Interestingly,a significant positive correlation between lncRNA HEIH and AFP was observed at P<0.001.CONCLUSION Differential expression of these RNAs suggests their involvement in HCV pathogenesis or antiviral response and highlights their promising roles in diagnosis and prognosis of HCV. | Nourhan M El Samaloty Marwa I Shabayek Ramy S Ghait Shohda A El-Maraghy Sherine M Rizk Maha M El-Sawalhi | 2020 | World Journal of Gastroenterology2020，26，2： | 2 |
| 5 | Potential role of killer immunoglobulin receptor genes among individuals vaccinated against hepatitis B virus in Lebanon显示文摘AIM To explore the role of killer immunoglobulin receptor(KIR) genes in responsiveness or non-responsiveness to vaccination against hepatitis B virus.METHODS We recruited 101 voluntary participants between March 2010 and December 2011. Sera samples from vaccinated and non-vaccinated participants were tested for the presence of anti-HBs antibodies as a measure of protection against hepatitis B, hepatitis B surface antigen and hepatitis B core antibody as indicators ofinfection by enzyme-linked immunosorbent assay. KIR gene frequencies were determined by polymerase chain reaction.RESULTS Sera samples from 99 participants were tested for the levels of anti-HBs as an indicator of protection(≥ 10 mI U/ml) following vaccination as defined by the World Health Organization international reference standard. Among the vaccinated participants, 47%(35/74) had anti-HBs titers above 100 mI U/ml, 22%(16/74) had antiHBs ranging between 10-100 mI U/ml, and 20%(15/74) had values of less than 10 mI U/ml. We report the lack of significant association between the number of vaccine dosages and the titer of antibodies among our vaccinated participants. The inhibitory KIR2Dl1, KIR2Dl4, KIR3Dl1, KIR3Dl2, and KIR3 Dl were detected in more than 95%, whereas KIR2Dl2, KIR2Dl3, KIR2Dl5(KR2Dl5A and KIR2Dl5B) were expressed in 56%, 84% and 42%(25% and 29%) of participants, respectively. The observed frequency of the activating KIR genes ranged between 35% and 55% except for KIR2DS4, detected in 95% of the study participants(40.6% 2DS4*001/002; 82.2% 2DS4*003/007). KIR2DP1 pseudogene was detected in 99% of our participants, whereas KIR3DP*001/02/04 and KIR3DP1*003 had frequencies of 17% and 100%, respectively. No association between the frequency of KIR genes and anti-HBs antibodies was detected. When we compared the frequency of KIR genes between vaccinated individuals with protective antibodies titers and those who lost their protective antibody levels, we did not detect a significant difference. KIR2Dl5 B was significantly different among different groups of vaccinated participants(group Ⅰ > 100 mI U/ml, group Ⅱ 10-100 mI U/ml, group Ⅲ < 10 mI U/ml and group Ⅳ with undetectable levels of protective antibodies). CONCLUSION To our knowledge, this is the first study screening for the possible role of KIR genes among individuals vaccinated against hepatitis B virus(HBV). Our results can be used to design larger studies to better understand the role of KIR genes in protection against or susceptibility to HBV post vaccination. | Nada M Melhem Rami A Mahfouz Khalil Kreidieh Rabab Abdul-Khalik Rolla El-Khatib Reem Talhouk Umayya Musharrafieh Ghassan Hamadeh | 2016 | World Journal of Hepatology2016，8，29： | 2 |
| 6 | Bemisia tabaci Biotype Dynamics and Resistance to Insecticides in Israel During the Years 2008-2010显示文摘The sweetpotato whitefly Bemisia tabaci(Hemiptera:Aleyrodidae)is an extremely polyphagous insect pest that causes significant crop losses in Israel and worldwide.B.tabaci is a species complex of which the B and Q biotypes are the most widespread and damaging worldwide.The change in biotype composition and resistance to insecticide in Israel was monitored during the years 2008-2010 to identify patterns in population dynamics that can be correlated with resistance outbreaks.The results show that B biotype populations dominate crops grown in open fields,while Q biotype populations gradually dominate crops grown in protected conditions such as greenhouses and nethouses,where resistance outbreaks usually develop after several insecticide applications.While in previous years,Q biotype populations were widely detected in many regions in Israel,significant domination of the B biotype across populations collected was observed during the year 2010,indicating the instability of the B.tabaci population from one year to another.Reasons for the changing dynamics and the shift in the relative abundance of B.tabaci biotype,and their resistance status,are discussed. | Svetlana Kontsedalov Fauzi Abu-Moch Galina Lebedev Henryk Czosnek A Rami Horowitz Murad Ghanim | 2012 | Journal of Integrative Agriculture2012，11，2： | 2 |
| 7 | Rectal bleeding as a presenting symptom of AL amyloidosis and multiple myeloma显示文摘Amyloidosis of the gastrointestinal tract is a rare disease that presents with common,nonspecific signs and symptoms.It may affect any part of the gastrointestinal tract from mouth to anus.The clinical and endoscopic features are diverse and may mimic other diseases,such as inflammatory bowel disease,malignancy,ischemic colitis and,at times,collagenous colitis.We describe an uncommon case of rectal bleeding and anemia with polypoid lesions and ulcerations in the colon,as the presenting symptom of AL amyloidosis and light chain multiple myeloma. | Itay Maza Evgene Vlodavsky Rami A Eliakim | 2010 | World Journal of Gastrointestinal Endoscopy2010，2，1： | 2 |
| 8 | Selective hydroconversion of a model mixture and hydrotreated FCC gasoline for octane enhancement显示文摘 | GONZA'L EZA H RAMI'REZA J A | 2004 | Catalysis Today2004，98，： | 1 |
| 9 | UV generation of a multifunctional hyperbranched thermal crosslinker to cureepoxy resins显示文摘 | Foix D Ramis X Serra A | | 0，，15： | 1 |
| 10 | Seizure classification in EEG signals utilizing Hilbert-Huang transform显示文摘 | Rami J O Enas W A | 2011 | Biomedical Engineering Online2011，10，1： | 1 |
| 11 | Effective reduction of neuronal death by inhibiting gap junctional intercellular communication in a model of global transcient cerebral ischaemia显示文摘 | Rami A Volkmann T Winckler J | 2001 | Exp Neurol2001，170，2： | 1 |
| 12 | Synthesis of glycen carbonate from 3-chloro-l,2-propanediol and carboJ dioxide using triethylamine as both solvent and CO fixation-activation agent 显示文摘 | OCHOA-GOMEZ J R GOMEZ-JIMENEZ-ABERASTUF O RAMI REZ-L6PEZ C A | 2011 | Chem Eng J2011，175，： | 1 |
| 13 | LMI optimization for nonstandard riccati equations arising in stochastic control显示文摘 | RAMI M A GHAOUI L E | 1996 | IEEE Transactions on Automatic Control1996，41，11： | 1 |
| 14 | Focal cerebral ischemia induces upregulation of Beclin 1 and autophagy-like cell death显示文摘 | Rami A Langhagen A Steiger S | 2008 | Neurobiol Dis2008，29，1： | 1 |
| 15 | The Outcome of Closed, Intramedullary Exchange Nailing With Reamed Insertion in the Treatment of Femoral Shaft Nonunions显示文摘 | Josh E Shroeder Rami Mosheiff Amal Khoury Meir Liebergall Yoram A Weil | 2009 | Journal of Orthopaedic Trauma2009，，9： | 1 |
| 16 | Catalytic abatement of NQx: Chemical and mechanistic aspects 显示文摘 | BUSCA G LARRUBIA M A ARRIGHI L RAMIS G | 1993 | Catalysis Toda-1993，16，： | 1 |
| 17 | An FT-IR study of the adsorption and oxidation of N-containing compounds over Fe 2 O 3 -TiO 2 SCR catalysts显示文摘 | Larrubia M A Ramis G Busca G | 2001 | Applied Catalysis B:Environmental2001，30，12： | 1 |
| 18 | Spatial resolution of phospholipid scramblase 1 (PLSCR1), caspase-3 activation and DNA-fragmentation in the human hippocampus after cerebral ischemia显示文摘 | Rami A Sims J Botez G | 2003 | Neurochem Int2003，43，： | 1 |
| 19 | Type of renal calcu- li: variation with age and sex显示文摘 | Costa-Bauza A Ramis M Montesinos V | 2007 | World J Urol2007，25，4： | 1 |
| 20 | Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents: Influence of porosity and surface interactions 显示文摘 | Bouyarmane H Asri S E Rami A | 2010 | J Hazard Mater2010，181，123： | 1 |
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