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| 1 | 过渡金属阳离子预处理对活性炭催化性能的提高显示文摘首先将商用活性炭样品在1%的稀硝酸中处理,然后等体积浸渍在含有5%和10%(质量分数)硝酸钴、硝酸镍或硝酸铜的水溶液中,并在100 ℃干燥至恒重,最后将样品在Ar气氛中于400 ℃焙烧 3 h. 采用X射线衍射、N2吸附和红外光谱等分析手段对不同固体样品进行了表征,并考察了其对异丙醇催化转化和25~45 ℃时过氧化氢催化分解的活性. 结果表明,掺杂5%或10%的过渡金属氧化物后,活性炭样品中含有结晶度很差的CoO, Co3O4, NiO, Cu2O和CuO相的纳米晶. 金属氧化物预处理使活性炭的BET比表面积略有增加. 这些固体样品主要用作脱氢催化剂,其选择性均高于90%. 在225 ℃时,经5%氧化钴、氧化镍和氧化铜处理的活性炭的催化活性比硝酸处理的活性炭分别提高了6%, 24.6%和40.6%. 少量CoO处理后的商用活性炭对H2O2催化分解活性的提高是由参与该催化反应的活性位浓度的显著增加而引起的,该处理过程并没有改变H2O2催化分解的机理. | Sahar A. EL-MOLLA Gamil A. EL-SHOBAKY Sohair A. SAYED AHMED | 2007 | 催化学报2007，28，7： | 13 |
| 2 | Molecular detection of monocyte chemotactic protein-1 polymorphism in spontaneous bacterial peritonitis patients显示文摘AIM: To investigate the association of the functional monocyte chemotactic protein-1(MCP-1) promoter polymorphism(A-2518G) with spontaneous bacterial peritonitis(SBP).METHODS: Fifty patients with post-hepatitis C liver cirrhosis and ascites were categorized into two groups; group Ⅰ included 25 patients with SBP and group Ⅱ included 25 patients free from SBP. In addition, a group of 20 healthy volunteers were included. We assessed the MCP-1 gene polymorphism and gene expression as well as interleukin(IL)-10 levels in both blood and ascitic fluid. RESULTS: A significant MCP-1 gene polymorphism was detected in groups Ⅰ and Ⅱ(P = 0.001 and 0.02 respectively). Group Ⅰ was associated with a significantly higher frequency of AG genotype [control 8(40%) vs SBP 19(76.0%), P < 0.001], and group Ⅱ was associated with a significantly higher frequency of GG genotype when compared to healthy volunteers [control 1(5%) vs cirrhotic 16(64%), P < 0.001]. Accordingly, the frequency of G allele was significantly higher in both groups(Ⅰ and Ⅱ) [control 10(25%) vs SBP 27(54%), P < 0.001 and vs cirrhotic 37(74.0%), P < 0.001, respectively]. The total blood and ascetic fluid levels of IL-10 and MCP-1 gene expression were significantly higher in group Ⅰ than in group Ⅱ. Group Ⅰ showed significant reductions in the levels of MCP-1 gene expression and IL-10 in the whole blood and ascetic fluid after therapy. CONCLUSION: MCP-1 GG genotype and G allele may predispose HCV infected patients to a more progressive disease course, while AG genotype may increase the susceptibility to SBP. Patients carrying these genotypes should be under supervision to prevent or restrict further complications. | Maysa Kamal Salama Dina Sabry Mohamed AS Al-Ghussein Rasha Ahmed Sayed AbdAllah Fatma Mohamed Taha Wael Fathy Miriam Safwat Wadie Mona Nabih Amr Abul-Fotouh Tarneem Darwish | 2014 | World Journal of Gastroenterology2014，20，33： | 7 |
| 3 | Design of a Porous Cored Hexagonal Photonic Crystal Fiber Based Optical Sensor With High Relative Sensitivity for Lower Operating Wavelength显示文摘在这篇文章,充实微结构化的 photonic 水晶纤维(PCF ) 的高度敏感、低的监禁损失作为一个光传感器被建议了。建议 PCF 是多孔的 cored 六角形(P-HPCF ) 在 cladding 与圆形的空气包含五层的地方,洞和核心附近由二个分层的椭圆的空气洞被形成。象相对敏感和建议 P-HPCF 的监禁损失那样的二个基本繁殖特征被完整的 vectorial 数字地细看有限元素方法(女性) 模拟过程。优化价值从 0.8 愠敲挠畡敳 ? 祢搠浡条 ? 愠敲愠煣極敲 ? 祢栠杩 ? 灳敥 ? 在波长的一个广阔分类上与象圆形或椭圆的空气洞,核心的程度,和 cladding 区域的直径一样的不同几何参数被修改 ?? 湩整牲杯瑡潩吗? | Shuvo SEN Sawrab CHOWDHURY Kawsar AHMED Sayed ASADUZZAMAN | 2017 | Photonic Sensors2017，7，1： | 4 |
| 4 | 羊膜移植治疗睑球黏连的临床观察(英文)显示文摘目的:评估羊膜移植(AMT)在治疗睑球黏连中的应用效果。方法:这项无对照干预性病例研究于2013/01~2015/12,包括连续就诊的12名患者共14眼。患者均接受永久性羊膜移植,以治疗睑球黏连,使用冷冻保存或冷冻干燥的羊膜(AM)。这12例(14眼)患者,年龄在26~62岁,平均43.38±11.25岁,其中8例(4名男性,4名女性)10眼为翼状胬肉切除术后继发,4例患者(1名男性,3名女性)斜视手术后继发。所有患者距上次手术至少6mo。术后以恢复深度稳定的穹窿为手术成功,无瘢痕或炎症发生,6mo的随访期间无眼球运动的限制。结果:随访期平均为7±4.2mo(6-9mo)。在所有14只眼中,手术后3wk均观察到AM完全上皮化,手术部位无炎症表现。总共14眼中有8眼(成功率57%)显示穹窿重建成功,穹窿深,无复发。有4眼(29%)表现出部分成功,中度深度的穹窿和中度瘢痕。有2眼(14%)显示重建失败,穹窿完全闭合。有7眼手术后视力改善,7眼视力保持稳定。AMT术后并发症少,14眼中1眼(7%)发生严重的结膜反应和眼球运动受限。而在术后前3mo中,14眼中有2眼发生化脓性肉芽肿(14%),予以手术切除,局部糖皮质激素注射。结论:单用AMT是一种治疗睑球黏连安全有效的方法。考虑到与角膜缘切除有关的潜在不良反应,AMT也是一种有效的重建穹窿以修复各种眼表疾病所致睑球黏连的方法。 | Ahmed Tamer Sayed Saif Passant Sayed Saif Amr El Deeb | 2017 | 国际眼科杂志2017，17，5： | 4 |
| 5 | Influence of NaCI and Na2SO4 Treatments on Growth Development of Broad Bean (Vicia Faba, L.) Plant显示文摘 | Hameda El Sayed Ahmed El Sayed | 2011 | Journal of Life Sciences2011，5，7： | 4 |
| 6 | Alcohol Sensing Over O+E+S+C+L+U Transmission Band Based on Porous Cored Octagonal Photonic Crystal Fiber显示文摘 | Bikash Kumar PAUL Md. Shadidul ISLAM Kawsar AHMED Sayed ASADUZZAMAN | 2017 | Photonic Sensors2017，7，2： | 3 |
| 7 | Functional evaluation of the filtering bleb by ultrasound biomicroscopy after trabeculectomy with mitomycin C显示文摘AIM: To study the role of ultrasound biomicroscopy(UBM) in the assessment of the bleb function after trabeculectomy with mitomycin C(MMC). METHODS: This was a cross-sectional study including all cases had undergone trabeculectomy with MMC 0.2 mg/mL for 3 min. Participants were recruited from the follow-up cases at Department of Ophthalmology, Tanta University in the period from August 2015 to August 2016. Full history taking and ophthalmological examination were performed. Intraocular pressure(IOP) was measured using Goldmann applanation tonometry and the history of prescribed postoperative antiglaucoma medications was recorded. Accordingly, the trabeculectomy blebs were divided clinically into successful blebs when the IOP post-operative was ≤18 mmHg without medications. Scanning examination of the filtering bleb using UBM examination was performed at the period from 2 to 36 mo after trabeculectomy(13.6±9.7 m o). RESULTS: This study included 33 trabeculectomy filtering blebs of 25 patients(9 males and 16 females). The mean age of patients was 53.2±14.2 y(range 25-71y). We had 20 eyes with complete success, 9 eyes with qualified success, and 4 eyes with failure after trabeculectomy with MMC. The blebs were classified into successful blebs(IOP ≤18 mmHg without antiglaucoma medications), others were classified into qualified successful and failed blebs. There was a significant correlation between certain UBM findings(intra-bleb reflectivity, draining sub-scleral tract, bleb height, and intrableb fluid cysts) and cases with different grades of clinical functional success(P<0.01).CONCLUSION: UBM is an objective tool in the functional assessment of the post-trabeculectomy filtering bleb through a significant correlation between certain UBM parameters and the different grades of clinical functional success. | Ali Abbas El Salhy Rabab Mohamed Elseht Ahmed Fekry AI Maria Saied Mohamed Abd El-wahab Shalaby Tarek Ragaee Hossein | 2018 | International Journal of Ophthalmology(English edition)2018，11，2： | 3 |
| 8 | Seedling response of three agroforestry tree species to phosphorous fertilizer application in Bangladesh: growth and nodulation capabilities显示文摘三倍的超级磷酸盐, TSP 化肥,被使用@80 kg · h −1 作为来源在六个月磷在在孟加拉国的苗床的 Albizia chinensis, Albizia saman 和 Pongamia pinnta 的旧 polybag 幼苗。幼苗生长和生节上的 P 化肥的效果与在不同收获间隔在未受精的土壤或在控制种的幼苗的相比。学习揭示了那,幼苗生长用 P 化肥的申请显著地被提高。生长在 A 的情况下被发现更显著。saman 和 P。pinnata,而它不是在 A 的情况下的显著、显示出的沮丧的生长。chinensis。学习也建议除了在 P 的情况下,生节也与 P 授精显著地以小瘤数字和尺寸被增加。pinnata。 | Mohammad Belal Uddin Sharif Ahmed Mukull Mohammed Abu Sayed Arfin Khan Mohammed Kamal Hossain | 2009 | Journal of Forestry Research2009，20，1： | 2 |
| 9 | Bougainvillea spectabilis flowers extract protects against the rotenone-induced toxicity显示文摘Objective:To investigate the effect of two extracts of Bougainvillea spectabilis(B. spectabilis) flowers with yellow and pink/purple on brain oxidative stress and neuronal damage caused in rats by systemic rotenone injection. Methods:Rotenone 1.5 mg/kg was given three times per week alone or in combination with B. spectabilis flowers extracts(25 mg or 50 mg) via the subcutaneous route for 2 weeks. Brain concentrations of the lipid peroxidation marker malondialdehyde(MDA),reduced glutathione,nitric oxide(nitrite),the pro-inflammatory cytokine interleukin-1beta(Il-1β) as well as butyrylcholinesterase,and paraoxonase-1(PON-1) activities,were determined. Histopathology and caspase-3 immunohistochemistry were also performed. Results:Rotenone resulted in significant increases of brain MDA(the product of lipid peroxidation),and nitric oxide content along with decreased brain reduced glutathione. There were also marked and significant inhibition of brain PON-1 and BCh E activities and increased Il-1β in brain of rotenone-treated rats. B. spectabilis flowers extract itself resulted in brain oxidative stress increasing both lipid peroxidation and nitrite content whilst inhibiting PON-1 activity. The yellow flowers extract inhibited BCh E activity and increased brain Il-1β. When given to rotenone-treated rats,B. spectabilis extracts,however,decreased lipid peroxidation while their low administered doses increased brain GSH. Brain nitrite decreased by the pink extract but showed further increase by the yellow extract. Either extract,however,caused further inhibition of PON-1 activity while the yellow extract resulted in further inhibition of BChE activity. Histopathological studies indicated that both extracts protected against brain,liver and kidney damage caused by the toxicant. Conclusions:These data indicate that B. spectabilis flowers extracts exert protective effect against the toxic effects of rotenone on brain,liver and kidney. B. spectabilis flowers extracts decreased brain lipid peroxidation and prevented neuronal death due to rotenone and might thus prove the value in treatment of Parkinson's disease. | Omar M.E.Abdel-Salam Eman R.Youness Nadia A.Ahmed Sayed A.El-Toumy Ahmed M.A.Souleman Nermeen Shaffie Dalia M.Abouelfadl | 2017 | Asian Pacific Journal of Tropical Medicine2017，10，5： | 2 |
| 10 | Early detection of hepatocellular carcinoma co-occurring with hepatitis C virus infection: A mathematical model显示文摘AIM: To develop a mathematical model for the early detection of hepatocellular carcinoma(HCC) with a panel of serum proteins in combination with α-fetoprotein(AFP).METHODS: Serum levels of interleukin(IL)-8, soluble intercellular adhesion molecule-1(s ICAM-1), soluble tumor necrosis factor receptor Ⅱ(s TNF-RⅡ), proteasome, and β-catenin were measured in 479 subjects categorized into four groups:(1) HCC concurrent with hepatitis C virus(HCV) infection(n = 192);(2) HCV related liver cirrhosis(LC)(n = 96);(3) Chronic hepatitis C(CHC)(n = 96); and(4) Healthy controls(n = 95). The R package and different modules for binary and multi-class classifiers based on generalized linear models were used to model the data. Predictive power was used to evaluate the performance of the model. Receiver operating characteristic curve analysis over pairs of groups was used to identify the best cutoffs differentiating the different groups. RESULTS: We revealed mathematical models, based on a binary classifier, made up of a unique panel of serum proteins that improved the individual performance of AFP in discriminating HCC patients from patients with chronic liver disease either with or without cirrhosis. We discriminated the HCC group from the cirrhotic liver group using a mathematical model(-11.3 + 7.38 × Prot + 0.00108 × s ICAM + 0.2574 ×β-catenin + 0.01597 × AFP) with a cutoff of 0.6552, which achieved 98.8% specificity and 89.1% sensitivity. For the discrimination of the HCC group from the CHC group, we used a mathematical model [-10.40 + 1.416 × proteasome + 0.002024 × IL + 0.004096 × s ICAM-1 +(4.251 × 10-4) × s TNF + 0.02567 ×β-catenin + 0.02442 × AFP] with a cutoff 0.744 and achieved 96.8% specificity and 89.7% sensitivity. Additionally, we derived an algorithm, based on a binary classifier, for resolving the multi-class classification problem by using three successive mathematical model predictions of liver disease status. CONCLUSION: Our proposed mathematical model may be a useful method for the early detection of different statuses of liver disease co-occurring with HCV infection. | Abdel-Rahman Nabawy Zekri Amira Salah El-Din Youssef Yasser Mabrouk Bakr Reham Mohamed Gabr Ola Sayed Ahmed Mostafa Hamed Elberry Ahmed Mahmoud Mayla Mohamed Abouelhoda Abeer A Bahnassy | 2016 | World Journal of Gastroenterology2016，22，16： | 2 |
| 11 | Effect of omega-3 on hepatic regeneration in adult living donors undergoing hepatic resections for liver transplantation: A randomized controlled trial显示文摘 | Eman Sayed Ibrahim Sherif Mohamed Saleh Mohamed EL hoseeny Ahmed EL shaarawy | 2016 | Journal of Critical Care2016，，： | 1 |
| 12 | Optimization of the cultivation medium for natamycin production by Streptomyces natalensis显示文摘 | Mohamed A.Farid Hesham A.El‐Enshasy Ahmed I.El‐Diwany El‐Sayed A.El‐Sayed | 2000 | J Basic Microbiol2000，，3： | 1 |
| 13 | Coordination compounds of hydrazine derivatives with transition metals. Part 27. Coordination chemistry of 4-amino-3-alkyl-5-thio-1,2,4-triazolines and 4-amino-5-oxo-3-thioxo-6-alkyl-2,3,4,5-tetrahydro-1,2,4-triazines显示文摘 | Magdi F. Iskander Josefe Stephanos Nagwa El Kady Mohyi El Essawi Ahmed El Toukhy Laila El Sayed | 1989 | Transition Metal Chemistry1989，，1： | 1 |
| 14 | New aspects in probucol cardioprotection against doxorubicin-induced cardiotoxicity显示文摘 | El-Bemerdash E Ali AA Sayed -Ahmed MM Osman AM | 2003 | Cancer Chemother Pharmacol2003，52，5： | 1 |
| 15 | The prevalence of MADH4 and BMPR1A mutations in juven- ile polyposis and absence of BMPR2, BMPR1B, and ACVR1 mutations 显示文摘 | Howe JR Sayed MG Ahmed AF Ringold J | 2004 | J Med Genet2004，41，7： | 1 |
| 16 | Clinical efficacy of direct-acting antiviral therapy for recurrent hepatitis C virus infection after liver transplantation in patients with hepatocellular carcinoma显示文摘BACKGROUND Recurrent hepatitis C virus(HCV)infection of transplanted liver allografts is universal in patients with detectable HCV viremia at the time of transplantation.Direct-acting antiviral(DAA)therapy has been adopted as the standard of care for recurrent HCV infection in the post-transplant setting.However,there are insufficient data regarding its efficacy in liver transplant(LT)recipients with a history of hepatocellular carcinoma(HCC),and the risk of HCC recurrence after DAA therapy is unknown.predictors of DAA treatment failure and HCC recurrence in LT recipients.METHODS A total of 106 LT recipients given DAAs for recurrent HCV infection from 2015 to 2019 were identified(68 with and 38 without HCC).Descriptive statistics and logistic regression models were used to estimate the multivariate odds ratios and respective 95%confidence intervals for predictors of treatment failure and HCC recurrence.RESULTS Six patients(6%)experienced DAA therapy failure post-LT and 100(94%)had a sustained virologic response at follow-up week 12.A high alanine transaminase level>35 U/L at treatment week 4 was a significant predictor of treatment failure.Relapse to pre-LT DAA therapy is a predictor of post-LT HCC recurrence,P=0.04.DAA relapse post-LT was also associated with post-transplantation HCC recurrence,P=0.05.CONCLUSION DAAs are effective and safe in the treatment of recurrent HCV infection in LT recipients with history of HCC.Relapse to pre-and post-LT DAA therapy is associated with post-transplantation HCC recurrence. | Mohamed Saleh Ismail Manal Hassan Saira Aijaz Khaderi Wael Ahmed Yousry Maha Mohsen Kamal El-Din Mohamed Mohamed Bahaa El-Din Osama Aboelfotoh El Sayed Ahmed Omar Kaseb John Alan Goss FasihaKanwal Prasun Kumar Jalal | 2020 | World Journal of Hepatology2020，12，9： | 1 |
| 17 | Cross-linked polyacrylonitrile prepared by radlation-induced polymerization technique 显示文摘 | Sayed M Badawy Ahmed M Dessouki | 2003 | Journal of Physical Chemistry B2003，107，11： | 1 |
| 18 | Effects of Fifth-Instar Volatiles on Sexual Maturation of Adult Desert Locust Schistocerca gregaria显示文摘 | Yousif O. H. Assad Ahmed Hassanali Baldwyn Torto Hassane Mahamat Nabil H. H. Bashir Sayed El Bashir | 1997 | Journal of Chemical Ecology1997，，5： | 1 |
| 19 | INDO/SCF - CI calculations and structural spectroscopic studies of some complexes of 4-hydroxyacetanilide 显示文摘 | A S E1 - Shahawy S M Ahmed N Kh Sayed | 2007 | Spectrochimica Acta Part A2007，66，： | 1 |
| 20 | Surface properties and thermodynamic parameters of some sugar - based ethoxylated amine surfactants 1 : Synthesis, characterization, and demulsification efficiency 显示文摘 | MANAR EL - SAYED ABDEL - RAOUF ABDUL - RAHEIM MAHMOUD ABDUL - RAHEIM ABDEL - AZIM AHMED ABDEL - AZIM | 2011 | Journal of Surfactants and Detergents2011，14，1： | 1 |
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