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mohamed abdallah

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https://www.readbyqxmd.com/read/29778681/portable-x-ray-fluorescence-for-the-detection-of-pop-bfrs-in-waste-plastics
#1
Martin Sharkey, Mohamed Abou-Elwafa Abdallah, Daniel S Drage, Stuart Harrad, Harald Berresheim
The purpose of this study was to establish the efficacy of portable X-ray fluorescence (XRF) instrumentation as a screening tool for a variety of end of life plastics which may contain excess amounts of brominated flame retardants (BFRs), in compliance with European Union (EU) and United Nations Environment Programme (UNEP) legislative limits (low POP concentration limits - LPCLs). 555 samples of waste plastics were collected from eight waste and recycling sites in Ireland, including waste electrical and electronic equipment (WEEE), textiles, polyurethane foams (PUFs), and expanded polystyrene foams...
May 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29772111/clomiphene-citrate-and-human-chorionic-gonadotropin-are-both-effective-in-restoring-testosterone-in-hypogonadism-a-short-course-randomised-study
#2
Mohamad Habous, Simone Giona, Alaa Tealab, Mohammed Aziz, Ben Williamson, Mohammed Nassar, Zeyad Abdelrahman, Abdallah Remeah, Mohamed Abdelkader, Saleh Binsaleh, Gordon Muir
OBJECTIVES: To compare serum testosterone response and symptom improvement in hypogonadal men in response to treatment by one of three options: clomiphene citrate(CC), human chorionic gonadotropin (hCG), or combination of both therapy. PATIENTS AND METHODS: 282 hypogonadal adult, willing to preserve their fertility, were randomised in three arms treated respectively with: 50 mg of (CC) (n=95), 5000IU of hCG injections twice a week(n=94) or combination of both therapy(n=94)...
May 17, 2018: BJU International
https://www.readbyqxmd.com/read/29761825/zinc-mitigates-renal-ischemia-reperfusion-injury-in-rats-by-modulating-oxidative-stress-endoplasmic-reticulum-stress-and-autophagy
#3
Najet Hadj Abdallah, Anna Baulies, Ahlem Bouhlel, Mohamed Bejaoui, Mohamed A Zaouali, Safa Ben Mimouna, Imed Messaoudi, José C Fernandez-Checa, Carmen García Ruiz, Hassen Ben Abdennebi
Oxidative stress is a major factor involved in the pathogenesis of renal ischemia/reperfusion (I/R). Exogenous zinc (Zn) was suggested as a potent antioxidant; however, the mechanism by which it strengthens the organ resistance against the effects of reactive oxygen species (ROS) is not yet investigated. The present study aims to determine whether acute zinc chloride (ZnCl2 ) administration could attenuate endoplasmic reticulum (ER) stress, autophagy, and inflammation after renal I/R. Rats were subjected to either sham operation (Sham group, n = 6), or 1 hr of bilateral ischemia followed by 2 hr of reperfusion (I/R groups, n = 6), or they received ZnCl2 orally 24 hr and 30 min before ischemia (ZnCl2 group, n = 6)...
May 15, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29757642/pesticidal-activity-of-nanostructured-metal-oxides-for-generation-of-alternative-pesticide-formulations
#4
Haytham Ayoub, Mohamed Khairy, Salaheldeen Elsaid, Farouk Abdallah Rashwan, Hanan F Abdel-Hafezb
Herein, nanostructured metal oxides of essential soil nutrient elements (i. e. CuO and CaO) with definite shape and size were simply synthesized and their pesticidal activities against cotton leafworm (Spodoptera littoralis) were explored for the first time. These metal oxide nanostructures represented novel economic and eco-friendly nano-pesticides for sustainable plant protection and might boost the nutrient content of soil. The results showed that CuO NPs and CaO NPs exhibited potential entomotoxic effects against S...
May 14, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29756307/age-adjusted-comorbidity-and-survival-in-locally-advanced-laryngeal-cancer
#5
Collin F Mulcahy, Abdallah S R Mohamed, Aasheesh Kanwar, Katherine A Hutcheson, Alokananda Ghosh, David Vock, Randal S Weber, Stephen Y Lai, Gary Brandon Gunn, Mark Zafereo, William H Morrison, Renata Ferrarotto, Adam S Garden, David I Rosenthal, Clifton D Fuller
BACKGROUND: The purpose of this study was to quantify the relationship among age, pretreatment comorbidity, and survival outcomes in patients with locally advanced laryngeal cancer. METHODS: Baseline comorbidity data were collected and age-adjusted Charlson Comorbidity Index (CCI) was calculated for each case. Kaplan-Meier and Cox proportional hazards modeling were used to determine associations with survival. RESULTS: For 548 patients, with a median age of 59 years (range 31-91 years), 58% were treated with larynx preservation and the rest with total laryngectomy and adjuvant radiotherapy (RT)...
May 13, 2018: Head & Neck
https://www.readbyqxmd.com/read/29753376/effectiveness-of-sofosbuvir-ribavirin-and-peg-ifn%C3%AE-2a-in-the-treatment-of-na%C3%A3-ve-egyptian-patients-with-chronic-hepatitis-c-virus-genotype-4
#6
Fatma Abdallah, Gehad Mohamed, Mohsen Ibrahim, Mokhtar El Tarabily
BACKGROUND: Egypt is one of the largest epidemic areas of hepatitis C virus (HCV) in the world. Its prevalent genotype is 4 with a majority of subtype 4a. In 2013, the Food and Drug Administration approved a new direct-acting antiviral drug (sofosbuvir) to treat patients with chronic HCV infection. In Egypt, the patients are already being treated with sofosbuvir in conjunction with ribavirin and pegylated interferon alfa-2a (PEG-IFNα-2a) for 12 weeks since 2015. The present study was planned to explain the efficacy of this treatment regimen against the HCV genotype 4a in Egyptian patients and its pretreatment predictive factors of virological response...
May 2018: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29749577/the-various-applications-of-3d-printing-in-cardiovascular-diseases
#7
REVIEW
Abdallah El Sabbagh, Mackram F Eleid, Mohammed Al-Hijji, Nandan S Anavekar, David R Holmes, Vuyisile T Nkomo, Gustavo S Oderich, Stephen D Cassivi, Sameh M Said, Charanjit S Rihal, Jane M Matsumoto, Thomas A Foley
PURPOSE OF REVIEW: To highlight the various applications of 3D printing in cardiovascular disease and discuss its limitations and future direction. RECENT FINDINGS: Use of handheld 3D printed models of cardiovascular structures has emerged as a facile modality in procedural and surgical planning as well as education and communication. Three-dimensional (3D) printing is a novel imaging modality which involves creating patient-specific models of cardiovascular structures...
May 10, 2018: Current Cardiology Reports
https://www.readbyqxmd.com/read/29742470/real-life-efficacy-of-ledipasvir-sofosbuvir-in-hepatitis-c-genotype-4-infected-patients-with-advanced-liver-fibrosis-and-decompensated-cirrhosis-%C3%A2-%C3%A2-%C3%A2
#8
Faisal M Sanai, Ibrahim H Altraif, Khalid Alswat, Adnan AlZanbagi, Mohamed A Babatin, Abdallah AlMousa, Nawaf H Almutairi, Mohammed S Aljawad, Abdullah S Alghamdi, Abdulrahman A Aljumah, Abduljaleel M Alalwan, Waleed K Al-Hamoudi, Abdullah M Assiri, Yaser Dahlan, Ashwaq Alsahafi, Hammad S Alothmani, Mohammed S AlSaleemi, Waleed A Mousa, Ali Albenmousa, Abdelrahman Awny, Haziz Albiladi, Ayman A Abdo, Hamdan AlGhamdi
Limited clinical trial data has shown high efficacy of co-formulated ledipasvir/sofosbuvir (LDV/SOF) in the treatment of hepatitis C virus (HCV) genotype (GT)-4 infected cirrhotic patients. We assessed real-world safety and efficacy of LDV/SOF with or without ribavirin (RBV) in GT4-infected patients with compensated and decompensated cirrhosis. PATIENTS & METHODS: This observational cohort (n=213) included GT4 treatment-naïve (59.6%) and -experienced (40.4%) patients with advanced fibrosis (F3, Metavir; n=30), compensated (F4, n=135) and decompensated cirrhosis (n=48) treated for 12 (n=202) or 24 weeks (n=11) with LDV/SOF...
May 6, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29733120/thymoquinone-protects-rat-liver-after-partial-hepatectomy-under-ischemia-reperfusion-through-oxidative-stress-and-endoplasmic-reticulum-stress-prevention
#9
Ahlem Bouhlel, Mohamed Bejaoui, Ismail Ben Mosbah, Najet Hadj Abdallah, Catherine Ribault, Roselyne Viel, Hassen Hentati, Anne Corlu, Hassen Ben Abdennebi
Ischemia reperfusion (I/R) is associated with liver injury and impaired regeneration during partial hepatectomy (PH). The aim of this study was to investigate the effect of thymoquinone (TQ), the active compound of essential oil obtained from Nigella sativa seeds, on rat liver after PH. Male Wistar rats were equally divided into four groups (n=6) receiving an oral administration of either vehicle solution (Sham and PH groups) or TQ at 30 mg/kg (TQ and TQ+PH groups) for ten consecutive days. Then, rats underwent PH (70%) with 60 min of ischemia followed by 24h of reperfusion (PH and TQ+PH groups)...
May 7, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29679814/prediction-of-recurrent-ectopic-pregnancy-a-five-year-follow-up-cohort-study
#10
Mohamed Ellaithy, Mufareh Asiri, Ahmed Rateb, Ahmed Altraigey, Khaled Abdallah
OBJECTIVE: To evaluate the value of different clinical risk factors in the prediction of recurrent ectopic pregnancies (REP). STUDY DESIGN: This cohort study was carried out at a tertiary-care maternity hospital in Saudi Arabia, between January 2010 and June 2017. All women with a primary ectopic pregnancy (EP) were consecutively recruited, thoroughly assessed and followed up for a minimum duration of five-years (5.6 ± 0.61 years) to diagnose the nature and location of the subsequent pregnancies...
April 10, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29660511/comparative-adsorption-profiles-of-basal-lamina-proteome-and-gingival-cells-onto-dental-and-titanium-surfaces
#11
Mohamed-Nur Abdallah, Ghada Abughanam, Simon D Tran, Zeeshan Sheikh, Mohamed A Mezour, Tayebah Basiri, Yizhi Xiao, Marta Cerruti, Walter L Siqueira, Faleh Tamimi
Titanium (Ti) dental implants are susceptible to bacterial infections and failure due to lack of proper epithelial seal. Epithelial cells establish a strong epithelial seal around natural teeth by the deposition of basal lamina (BL) proteins that adsorb on the tooth surface. This seal can even be re-established onto cementum or dentin following injury or periodontal therapy. However, it is unclear how tooth surfaces promote this cell attachment and protein adsorption. Understanding the interactions between BL proteins and epithelial cells with dentin and Ti will facilitate the development of implant surfaces that promote the formation of an epithelial seal and improve the success of periodontal therapy and wound healing on natural teeth...
April 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29658513/b-2-adrenergic-receptor-gene-polymorphism-effect-on-childhood-asthma-severity-and-response-to-treatment
#12
Ashgan Abdallah Alghobashy, Sahar A Elsharawy, Usama M Alkholy, Nermin Abdalmonem, Mohamed Ali Abdou, Maha A A Basset, Heba Fouad Pasha
BackgroundAlterations of B2 adrenergic receptor (β2 AR) can modulate the severity of asthma and the response to treatment. Therefore, we aimed to evaluate β2 AR gene polymorphism at codons 16 and 27 and their effect on asthma severity and response to treatment in asthmatic children.MethodsCase-control study was conducted on 156 children; 104 of them had bronchial asthma and 52 were healthy children (control group). Subjects of the study underwent history taking, clinical examination, pulmonary function tests, serum IgE level assessment, and identification of β2 AR-16 A46G and β2 AR-27 C79G polymorphism using PCR-Restriction Fragment length polymorphisms (RFLP) test...
March 2018: Pediatric Research
https://www.readbyqxmd.com/read/29628631/dosimetric-and-radiobiological-evaluation-of-patient-setup-accuracy-in-head-and-neck-radiotherapy-using-daily-computed-tomography-on-rails-based-corrections
#13
Ines-Ana Jurkovic, Esengul Kocak-Uzel, Abdallah Sherif Radwan Mohamed, Eleftherios Lavdas, Sotirios Stathakis, Nikos Papanikolaou, David C Fuller, Panayiotis Mavroidis
Introduction: This study evaluates treatment plans aiming at determining the expected impact of daily patient setup corrections on the delivered dose distribution and plan parameters in head-and-neck radiotherapy. Materials and Methods: In this study, 10 head-and-neck cancer patients are evaluated. For the evaluation of daily changes of the patient internal anatomy, image-guided radiation therapy based on computed tomography (CT)-on-rails was used. The daily-acquired CT-on-rails images were deformedly registered to the CT scan that was used during treatment planning...
January 2018: Journal of Medical Physics
https://www.readbyqxmd.com/read/29616418/a-right-coronary-artery-aneurysm-presenting-as-a-mass-in-echocardiography
#14
Yehia Saleh, Abdallah Almaghraby, Basma Hammad, Ola Abdelkarim, Mahmoud Abdelnaby, Eman El-Sharkawy, Mohamed Ayman Abdel-Hay
No abstract text is available yet for this article.
April 3, 2018: Journal of Echocardiography
https://www.readbyqxmd.com/read/29598944/three-dimensional-imaging-assessment-of-anatomic-invasion-and-volumetric-considerations-for-chemo-radiotherapy-based-laryngeal-preservation-in-t3-larynx-cancer
#15
Mona Kamal, Sweet Ping Ng, Salman A Eraj, Crosby D Rock, Brian Pham, Jay A Messer, Adam S Garden, William H Morrison, Jack Phan, Steven J Frank, Adel K El-Naggar, Jason M Johnson, Lawrence E Ginsberg, Renata Ferrarotto, Jan S Lewin, Katherine A Hutcheson, Carlos E Cardenas, Mark E Zafereo, Stephen Y Lai, Amy C Hessel, Randal S Weber, G Brandon Gunn, Clifton D Fuller, Abdallah S R Mohamed, David I Rosenthal
OBJECTIVES: To investigate the impact of 3-Diminsional (3D) tumor volume (TV) and extent of involvement of primary tumor on treatment outcomes in a large uniform cohort of T3 laryngeal carcinoma patients treated with nonsurgical laryngeal preservation strategies. MATERIALS AND METHODS: The pretreatment contrast-enhanced computed tomography images of 90 patients with T3 laryngeal carcinoma were reviewed. Primary gross tumor volume (GTVp) was delineated to calculate the 3D TV and define the extent of invasion...
April 2018: Oral Oncology
https://www.readbyqxmd.com/read/29597260/the-impact-of-carnitine-on-dietary-fiber-and-gut-bacteria-metabolism-and-their-mutual-interaction-in-monogastrics
#16
REVIEW
Abdallah Ghonimy, Dong Ming Zhang, Mohammed Hamdy Farouk, Qiuju Wang
Carnitine has vital roles in the endogenous metabolism of short chain fatty acids. It can protect and support gut microbial species, and some dietary fibers can reduce the available iron involved in the bioactivity of carnitine. There is also an antagonistic relationship between high microbial populations and carnitine bioavailability. This review shows the interactions between carnitine and gut microbial composition. It also elucidates the role of carnitine bacterial metabolism, mitochondrial function, fiber fermentability, and short chain fatty acids (SCFAs)...
March 28, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29574099/the-role-of-laparoscopic-mini-gastric-bypass-in-management-of-metabolic-syndrome
#17
Mahmoud Abdallah El-Husseiny, Ashraf Abdel-Hameed Abdel-Moneim, Mohammed Arafat Abdel-Maksoud, Kamel Suliman Hammad
OBJECTIVE: The study was performed to evaluate the technique of laproscopic minigastric bypass for metabolic syndrome patients. STUDY DESIGN: The patients were enrolled in a combined prospective study and had a retrospectively gathered outcome analysis. PATIENT AND METHODS: The study includes thirty patients; 24 females and 6 males suffering from metabolic syndrome with a mean age of 33.15 ± 10.17 years (range, 20-59), who fulfilled the criteria for bariatric surgery with BMI >35 with associated co-morbidities, all patients underwent laparoscopic mini-gastric bypass...
March 16, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29573992/corrigendum-to-comparative-study-between-duct-to-mucosa-and-invagination-pancreaticojejunostomy-after-pancreaticoduodenectomy-a-prospective-randomized-study-international-journal-of-surgery-16-2015-1-6
#18
Ayman El Nakeeb, Mohamed El Hemaly, Waleed Askr, Mohamed Abd Ellatif, Hosam Hamed, Ahmed Elghawalby, Mohamed Attia, Tallat Abdallah, Mohamed Abd ElWahab
No abstract text is available yet for this article.
March 21, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29568312/prevalence-and-associated-symptoms-of-helicobacter-pylori-infection-among-schoolchildren-in-kassala-state-east-of-sudan
#19
Mohammed Abbas, Faiza A Sharif, Shamselfalah M Osman, Abdallah M Osman, Sulieman M El Sanousi, Mamoun Magzoub, Mutasim E Ibrahim
This study aimed to determine the prevalence of H. pylori infections among schoolchildren and investigate the associations between H. pylori seropositivity and existence of gastrointestinal symptoms. Methods . A prospective cross-sectional study was conducted during a period from January to December 2012 at Kassala state, east of Sudan. Schoolchildren from different primary schools were enrolled in the study. Sociodemographic characteristics and gastrointestinal symptoms were recorded from each child. A rapid immunochromatographic test was performed for the detection of H...
2018: Interdisciplinary Perspectives on Infectious Diseases
https://www.readbyqxmd.com/read/29567012/staged-laparoscopic-traction-orchiopexy-for-intra-abdominal-testis-is-it-always-feasible
#20
Mohammed Elsherbeny, Ahmed Abdallah, Amr Abouzeid, Wael Ghanem, Ahmed Zaki
BACKGROUND AND OBJECTIVES: Laparoscopic orchiopexy for intra-abdominal testis is a well-known and commonly practiced technique. The traction technique is based on elongation of the testicular vessels without cutting them, in contrast with the two-stage Fowler-Stephens technique in which the testicular vessels are divided. The current study evaluated the feasibility of the traction technique according to the type of intra-abdominal testis. PATIENTS AND METHODS: The study included 20 boys with 22 intra-abdominal testes and who underwent staged laparoscopic traction orchiopexy between October 2013 and October 2015...
March 2, 2018: Journal of Pediatric Urology
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