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93篇 您的检索式:作者名="Mohamed Taha"
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1Calcific tendinitis of the rotator cuff显示文摘Calcific tendinitis within the rotator cuff tendon is a common shoulder disorder that should be differentiated from dystrophic calcification as the pathogenesis and natural history of both is totally different. Calcific tendinitis usually occurs in the fifth and sixth decades of life among sedentary workers. It is classified into formative and resorptive phases. The chronic formative phase results from transient hypoxia that is commonlyassociated with repeated microtrauma causing calcium deposition into the matrix vesicles within the chondrocytes forming bone foci that later coalesce. This phase may extend from 1 to 6 years, and is usually asymptomatic. The resorptive phase extends from 3 wk up to 6 mo with vascularization at the periphery of the calcium deposits causing macrophage and mononuclear giant cell infiltration, together with fibroblast formation leading to an aggressive inflammatory reaction with inflammatory cell accumulation, excessive edema and rise of the intra-tendineous pressure. This results in a severely painful shoulder. Radiological investigations confirm the diagnosis and suggest the phase of the condition and are used to follow its progression. Although routine conventional X-ray allows detection of the deposits, magnetic resonance imaging studies allow better evaluation of any coexisting pathology. Various methods of treatment have been suggested. The appropriate method should be individualized for each patient. Conservative treatment includes pain killers and physiotherapy, or 'minimally invasive' techniques as needling or puncture and aspiration. It is almost always successful since the natural history of the condition ends with resorption of the deposits and complete relief of pain. Due to the intolerable pain of the acute and severely painful resorptive stage, the patient often demands any sort of operative intervention. In such case arthroscopic removal is the best option as complete removal of the deposits is unnecessary.Mohamed Taha ElShewy 2016World Journal of Orthopedics2016,7,1:10
2Molecular 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 2014World Journal of Gastroenterology2014,20,33:7
3Impact of referral pattern and timing of repair on surgical outcome after reconstruction of post-cholecystectomy bile duct injury:A multicenter study显示文摘Background:Bile duct injury(BDI)after cholecystectomy remains a significant surgical challenge.No guideline exists to guide the timing of repair,while few studies compare early versus late repair BDI.This study aimed to analyze the outcomes in patients undergoing immediate,intermediate,and delayed repair of BDI.Methods:We retrospectively analyzed 412 patients with BDI from March 2015 to January 2020.The patients were divided into three groups based on the time of BDI reconstruction.Group 1 underwent an immediate reconstruction(within the first 72 hours post-cholecystectomy,n=156);group 2 underwent an intermediate reconstruction(from 4 days to 6 weeks post-cholecystectomy,n=75),and group 3 underwent delayed reconstruction(after 6 weeks post-cholecystectomy,n=181).Results:Patients in group 2 had significantly more early complications including anastomotic leakage and intra-abdominal collection and late complications including anastomotic stricture and secondary liver cirrhosis compared with groups 1 and 3.Favorable outcome was observed in 111(71.2%)patients in group 1,31(41.3%)patients in group 2,and 157(86.7%)patients in group 3(P=0.0001).Multivariate analysis identified that complete ligation of the bile duct,level E1 BDI and the use of external stent were independent factors of favorable outcome in group 1,the use of external stent was an independent factor of favorable outcome in group 2,and level E4 BDI was an independent factor of unfavorable outcome in group 3.Transected BDI and level E4 BDI were independent factors of unfavorable outcome.Conclusions:Favorable outcomes were more frequently observed in the immediate and delayed reconstruction of post-cholecystectomy BDI.Complete ligation of the bile duct,level E1 BDI and the use of external stent were independent factors of a favorable outcome.Ayman El Nakeeb Ahmad Sultan Helmy Ezzat Mohamed Attia Mohamed Abd ElWahab Taha Kayed Ayman Hassanen Ahmad AlMalki Ahmed Alqarni Mohammed M Mohammed 2021Hepatobiliary & Pancreatic Diseases International2021,20,1:4
4Isolation and characterization of marine-derived actinomycetes with cytotoxic activity from the Red Sea coast显示文摘Objective: To isolate and evaluate the cytotoxic activity of different actinomycetes species isolated from the Red Sea coast in Sharm el-Sheikh, Egypt.Methods: Forty actinomycetes strains were isolated from different sediments and seawater samples collected from the Red Sea coast in Egypt. Actinomycetes were recognized by morphological and microscopic examinations. Cell viability and cytotoxicity induced by the crude extracts on breast cancer cell lines MDA-MB-231 were assessed using methylene blue assay. The strains with promising cytotoxic activity were identified by sequencing and amplifying the 16 S r RNA genes. The antibacterial activities of the crude extracts were performed using Kirby–Bauer disc diffusion method.Results: The results indicated that five ethyl acetate extracts exhibited cytotoxicity towards breast cancer cell lines MDA-MB-231. The highest cytotoxic activity was found for the ethyl acetate extracts of EGY2 and EGY39. The isolate EGY3 was identified as a new Streptomyces species, while the actinomycete EGY22 was found to be a member of the genus Nocardiopsis sp. The crude extract of the isolate EGY8 showed slightly high antimicrobial activity against different test microorganisms.Conclusions: The results of the present study reveal that marine sediments of the Red Sea are a potent source of novel species of actinomycetes. The isolates may be useful in discovery of novel bioactive compounds and an important step in the development of microbial natural product research.Mohamed Saleh Abdelfattah Mohammed Ismail Youssef Elmallah Usama Wahid Hawas Lamia Taha Abou El-Kassema Mennat Allah Gamal Eid 2016Asian Pacific Journal of Tropical Biomedicine2016,6,8:3
5Review on nanocomposites fabricated by mechanical alloying显示文摘Composites are composed of multiphase materials, where each phase has specific properties that differ from those of the other phases which can effect on the whole properties of composite. Nanocomposites are class of materials that contain at least one phase in the nanometric size range and can be produced by any suitable technique for preparing nanomaterials. Composites are an interesting class of materials that have recently been used in numerous applications, including structural, biomedical, electronics, and environmental applications. In composites, reinforcements might be fibers, particulates, or whiskers. Mechanical alloying(MA) is a promising technique for producing nanocomposite materials that are difficult or impossible to prepare via conventional techniques. In this review, we provide an overview of nanocomposites prepared by the MA process. The mechanism of milling and other milling parameters are overviewed, and insights into sintering categories and parameters are also presented.Mohammed A. Taha Rasha A. Youness M.F. Zawrah 2019International Journal of Minerals,Metallurgy and Materials2019,26,9:3
6Association of high-sensitivity C-reactive protein with carotid artery intima-media thickness in hypertensive older adults显示文摘Moatassem S. Amer Amal E. Elawam Mohamed S. Khater Omar H. Omar Randa A. Mabrouk Hend M. Taha 2011Journal of the American Society of Hypertension2011,,5:2
7Semen parameters in men with spinal cord injury: changes and aetiology显示文摘瞄准:为了与针的绳索损害(SCI ) 和这些的可能的原因在人在精液参数估计变化,变化。方法:学习与 SCI 包括了 45 个题目。精液检索被手淫(2 ) 做,精力旺盛的职业人员静电干扰按摩(n = 13 ) ,阴茎振动刺激(n = 13 ) 或电镀物品射精(n = 17 ) 。结果:有 SCI 的人的精液显示出正常体积( 2.3 ± 1.9 mL )并且精子计数( 85.0 × 10 ~ 6 ± 83.8 × 10 ~ 6/mL )与减少的活动性(11.6%± 10.1%),活力(18.5%± 15.2%)并且正常形式( 17.5 ± 13.4%),并且脓房间被增加了( 6.0 × 10 ~ 6 ± 8.2 × 10 ~ 6/mL )。全部(13.4 ± 9.9 对 7.1 ± 6.8 ) 并且进步(4.4 ± 3.9 对 2.2 ± 2 .1 ) 活动性在有更低的阴囊的温度的题目是显著地更高的。关于任何精液参数电镀物品射精和阴茎振动刺激组之间没有统计重要差别。题目的年龄,很少发生的射精,损害持续时间和神经质的侧面没在精液参数上显示出重要效果。结论:在有 SCI 的人的 seminogram 的定义特征是正常体积并且与减少的精子活动性,活力和正常数形式,和脓房间的增加的数字。精液的恶化的最可接受的原因被提高阴囊的温度。Mohamed N. Momen Ibrahim Fahmy Medhat Amer Mohamad Arafa Wael Zohdy Taha A. Naser 2007Asian Journal of Andrology2007,9,5:2
8Prediction of safety factor for slope designed with various limit equilibrium methods显示文摘Mohamed T Kasa A Taha M R 2011Key Engineering Materials2011,,:1
9Spiral CT virtual bronchoscopy with multiplanar reformatting in the evaluation of post-intubation tracheal stenosis: comparison between endoscopic, radiological and surgical findings显示文摘Mohamed Shehata Taha Badr Eldin Mostafa Marwa Fahmy Maha Khaled A. Ghaffar Enas Abdel Ghany 2009European Archives of Oto-Rhino-Laryngology2009,,:1
10Gene expression of 49 kDa apyrase,cytoskeletal proteins,ATPase,ADPase and amino acid contents of Pisum sativum(L.)cells germinated in Euryops arabicus(Steud.ex Jaub.&Spach)water extract显示文摘The present research reports of quick and marked changes induced by plant extract of Euryops arabicus in the gene expression of 49-kDa apyrases,cytoskeletal proteins,ATPases,ADPase and amount of amino acid of pea(Pisum sativum L.var.Alaska).Pellets of cytoskeletals proteins(27000 xg)were probed with anti-apyrase antibody,biotinylated anti-rat,actin and alpha and beta-tubulin for Western blotting.ATPase and ADPase activities were determined based on the hydrolytic efficacy of adenine triphosphate and adenine diphosphate.By 72 hours,the abundance of apyrases,cytoskeletal proteins and amount of amino acid in pellets of 27000 xg of germinated pea seeds in E.arabicus extracts were sharply increased than those sown in distilled water.All the samples exhibited that the stems had more amount from apyrases,cytoskeletal proteins,amino acids and ATPase and ADPase activities than primary leaves and primary roots that were germinated either on E.arabicus water extract or in distilled water.Based on the enzyme’s capability to hydrolyse nucleotide triphosphate and nucleotide diphosphate as well as the direct association between expression of 49-kDa apyrase and cytoskeletal proteins,E.arabicus water extract had an important effect on plant germinations.MAHMOUD MOUSTAFA SAAD ALAMRI HOIDA ZAKI NAGLAA LOUTFY TAREK TAHA ALI SHATI MOHAMED ALKAHTANI SAJDA SIDDIQI 2019BIOCELL2019,43,2:1
11Efficient watermark detection by using the longest common substring technique显示文摘Taha M. Mohamed Hesham N. Elmahdy Hoda M. Onsi 2011Egyptian Informatics Journal2011,,2:1
12Poly(butyl methacrylate-co-methacrylic acid) copolymers with calcium carbonate supramolecular networks显示文摘Ni Yiping Becquart Frédéric Taha Mohamed 2014International Journal of Polymeric Materials and Polymeric Biomaterials2014,63,8:1
13Rho-kinase: regulation, (dys)function, and inhibition显示文摘Ehsan Amin Badri Nath Dubey Si-Cai Zhang Lothar Gremer Radovan Dvorsky Jens M. Moll Mohamed S. Taha Luitgard Nagel-Steger Roland P. Piekorz Avril V. Somlyo Mohammad R. Ahmadian 2013Biological Chemistry2013,,11:1
14Waste lubricating oil treatment by extraction and adsorption 显示文摘Mohammed R R Ibrahim I A R Taha A H 2013Chemical Engineering Journal2013,220,:1
15几类典型的超分子液晶研究进展显示文摘超分子液晶结合了超分子化学和液晶两者的特点,是近年来研究的一个热点。在简述超分子化学和超分子液晶概念的基础上,对非共价键结合包括氢键型、离子型和金属络合型的超分子液晶结构和研究现状作了简介,并对超分子液晶常用的表征方法进行了概述。倪一萍 陈建定 TAHA Mohamed 2009功能高分子学报2009,22,3:1
16Identification and Quantification of 5-Hydroxymethyl Furfural HMF in Some Sugar-Containing Food Prod-ucts by HPLC显示文摘SUZAN ZEIN ALABDEEN MAKAWI MOHAMMED IDREES TAHA BADAWI AHMED ZAKARIA 2009Pakistan Journal of Nutrition2009,8,9:1
17Waste lubricating oil treatment by extraction and adsorption 显示文摘Mohammed R R Ibrahim A R Taha A H 2013Chemical Engineer- ing Journal2013,220,:1
18Prospective study of cross-infection from upper-GI endoscopy in a hepatitis C–prevalent population 显示文摘Nabiel N. Mikhail David L. Lewis Nabiel Omar Hossam Taha Amal El-Badawy Naglaa Abdel-Mawgoud Mohamed Abdel-Hamid George T. Strickland 2007Gastrointestinal Endoscopy2007,,4:1
19Autoimmune thmmbocytopenia:Flow cytometric determination of platelet - associated CD154/ CD40L and CD40 on peripheral blood T and B lymphocytes显示文摘Meabed MH Taha GM Mohamed SO 2007Hematology2007,12,4:1
20Autoimmune thrombocytopenia:flow cytometric determination of platelet-associated CD154/CD40L and CD40 on peripheral blood T and B lymphocytes显示文摘 Taha GM Mohamed SO 2007Hematology2007,12,4:1
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