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| 1 | Ultrasound-assistant preparation of Cu-SAPO-34 nanocatalyst for selective catalytic reduction of NO by NH_3显示文摘The influence of the various preparation methods of Cu-SAPO-34 nanocatalysts on the selective catalytic reduction of NO with NH3 under excess oxygen was studied. Cu-SAPO-34 nanocatalysts were prepared by using four techniques: conventional impregnation(IM),ultrasound-enhanced impregnation(UIM), conventional deposition precipitation(DP) using Na OH and homogeneous deposition precipitation(HDP) using urea. These catalysts were characterized in detail by various techniques such as N2-sorption, XRD, TEM, H2-TPR,NH3-TPD and XPS to understand the catalyst structure, the nature and the dispersed state of the copper species, and the acid sites for NH3 adsorption. All of the nanocatalysts showed high activities for NO removal. However, the activities were different and followed the sequence of Cu-SAPO-34(UIM) > Cu-SAPO-34(HDP) > Cu-SAPO-34(IM) > Cu-SAPO-34(DP).Based on the obtained results, it was concluded that the NO conversion on Cu-SAPO-34 nanocatalysts was mainly related to the high reducibility of the isolated Cu2+ions and Cu O species, the number of the acid sites and the dispersion of Cu O species on SAPO-34. | Parvaneh Nakhostin Panahi Ali Niaei Darush Salari Seyed Mahdi Mousavi Gérard Delahay | 2015 | Journal of Environmental Sciences2015,27,9: | 7 |
| 2 | Association between low molecular polypeptide 7 single nucleotide polymorphism and response to therapy in hepatitis C virus infection显示文摘AIM: To investigate the relationship between low molecular polypeptide-7 (LMP-7) gene polymorphism and response to interferon (IFN) therapy in chronic hepatitis C virus (HCV) patients. METHODS: LMP-7 polymorphism at codon 49 with nucleotide substitution from A to C was amplified in 104 chronic HCV patients of genotype 4. The amplicons were digested with restriction endonuclease Bsm I and the produced restriction fragment length polymorphism was analyzed. Patients received IFN + regional blood volume therapy for 48 wk and the frequency of thissingle nucleotide polymorphism (SNP) was statistically correlated with treatment response. The exclusion criteria for these patients were stated by the national health program for treating viral hepatitis. Main exclusion criteria included co-infection with hepatitis B virus or schistosomiasis, thyroid dysfunction, uncontrolled diabetes mellitus, history of long term drug or alcohol intake and autoimmune hepatitis. Multivariate analyses were done to correlate LMP-7 SNP plus several factors such as age, gender, weight, serum alpha-fetoprotein (AFP) and alanine aminotransferase levels, liver activity, fibrosis score and viral load with response to therapy. RESULTS: The data presented in this study clearly demonstrated statistically significant differences between sustained virological response (SVR) (defined as the absence of HCV RNA levels in the patient's sera at least 6 mo after discontinuation of treatment) and non-response (NR) (where HCV RNA levels in the patient's sera never become undetectable for 6 mo during or after treatment). Variables were described as odds ratio with 95%CI. The data were considered significant if P values were ≤ 0.05; highly significant if P < 0.01 and very highly significant if P < 0.001. Current data showed that 91.7% of patients carrying LMP-7 C/C allele were associated with SVR, while the other two genotypes C/A and A/A were associated with NR patients, 83.3% and 64.3% respectively, showing that genotype CC was strongly associated with response to interferon (95%CI: 12.0719-134.6572, P = 0.0001). The majority of parameters recorded in SVR and NR patients included higher values of mean age (P = 0.004), alanine aminotransferase (P = 0.001), AFP (P = 0.001), body weight (P = 0.025), viral load (P = 0.025), higher fibrosis and histological activity index indices among NR vs SVR patients. Also, the multivariate statistical analysis of the different factors of fibro-sis score, liver activity grade, genotypes and alleles of LMP-7 gene polymorphism in responders and NRs of HCV patients in this study showed that HCV patients with A allele had a very highly significant association with the NRs, high fibrosis and higher liver activity, while the C allele had a very highly significant association with the responders, low fibrosis and lower liver activity (95%CI: 3.5800-13.2519, P = 0.0001).CONCLUSION: LMP-7 SNP is a candidate gene that should be considered when designing a mathematical model for predicting response to therapy and disease progression in HCV patients. | Moataza H Omran Basma E Fotouh Samar S Youssef Noha E Ibrahim Wael Nabil EL-Sayed M Mahdy Wafaa G Shosha Mostafa K El-Awady | 2013 | World Journal of Hepatology2013,5,3: | 4 |
| 3 | Screening analysis of beer ageing using near infrared spectroscopy and the successive projections algorithm for variable selection显示文摘 | MAHDI G V SEYED S M MARIA L R M | 2012 | Talanta2012,89,1: | 1 |
| 4 | Surgical management and complex treatment of infected pancreatic necrosis : 18-year experience at a sin- gle center显示文摘 | Farkas G Marton J Mahdi Y | 2006 | J Gastrointestinal Surg2006,10,2: | 1 |
| 5 | Topography of EEG multivariate phase synchronization in early Alzheimer' s disease 显示文摘 | Maria G K Mahdi J Andrea B | 2010 | Neurobiology of Aging2010,31,1: | 1 |
| 6 | Comparison of the Bishop score , ultrasonographically measured cervical length,and fetal fibronectin assay in predicting time until delivery and type of delivery at term显示文摘 | Patrick R Francois G Mahdie H | 2000 | Am J Obstet Gynecol2000,182,2: | 1 |
| 7 | Pharmacological importance of stereochemical resolution of enatiomeric drugs显示文摘 | Islam M R Mahdi Dr J G Bowen I D | 1997 | Drug Safety1997,17,3: | 1 |
| 8 | Phosphorus availability issue-its fixation and role of phosphate solubilizing bacteria in phosphate solubilization显示文摘 | Mahdi S S Hassan G I Hussain A | 2011 | Research Journal of Agricuhual Science2011,2,: | 1 |
| 9 | Interaction of water and nitrogen on maize grown for silage显示文摘 | Mahdi G Seyed M M Mohmmmad B | | 0,,: | 1 |
| 10 | Characterization and activity of alkaline earth metals loaded CeO 2 –MO x (M = Mn, Fe) mixed oxides in catalytic reduction of NO显示文摘 | Seyed Mahdi Mousavi Aligholi Niaei María José Illán Gómez Dariush Salari Parvaneh Nakhostin Panahi Vicente Abaladejo-Fuentes | 2014 | Materials Chemistry and Physics2014,,3: | 1 |
| 11 | Effect of methylene blue on intra-abdominal adhesion formation in rats显示文摘 | Mahdy T Mohamed G Elhawary A | 2008 | Int J Surg2008,6,6: | 1 |
| 12 | Diagnostic relevance of proeM-citonin, IL-6, and sICAM-1 in the prediction of infected necrosis in acute pancreatitis 显示文摘 | Mahdi Y Farkas G Takaes T | 2000 | Inter J Pancreatol2000,28,1: | 1 |
| 13 | Physical properties of self-curing concrete (SCUC) 显示文摘 | MOUSA M I MAHDY M G ABDEL-REHEEM A H | 2015 | HBRC J2015,11,2: | 1 |
| 14 | Superficial vein thrombosis: a current approach to management显示文摘 | Scott G Mahdi A J Alikhan R | 2015 | Br J Haematol2015,168,5: | 1 |
| 15 | Microstructure and Firmness of Labneh (high solids yoghurt)Made from Cow's,Goat'sand Sheep's Milks by a Traditional Method or by Ultrafiltration显示文摘 | Kalab M Davies G Mahdi HA | 1991 | Food Structure1991,10,: | 1 |
| 16 | Knitted fabric defect classification for uncertain labels based on Dempster-Shafer theory of evidence显示文摘 | MAHDI T REZA G REZA E | 2011 | Expert Systems with Applications2011,38,5: | 1 |
| 17 | Effect of methylene blue on intraabdominal adhesion formation in rats显示文摘 | Mahdy T Mohamed G Elhawary A | 2008 | Int J Surg2008,6,6: | 1 |
| 18 | Charac-teriza- tion of nanohybrid membranes for direct methanol fuel cell ap- plications显示文摘 | Mohammad Mahdi H S Seyed Reza G | 2009 | Solid State Ionics2009,180,: | 1 |
| 19 | AC impedance study on corrosion of 55A1-Zn alloy-coated steel under thin elec- trolyte layers显示文摘 | MAHDY G A NISHIKATA A TSURU T | 2000 | Corrosion Science2000,42,9: | 1 |
| 20 | AC impedance study on the atmospheric corrosion of aluminum under periodic wet - dry conditions 显示文摘 | EL- Mahdy G A Kim K B | 2004 | Electrochimica Acta2004,49,: | 1 |