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https://www.readbyqxmd.com/read/28339627/validity-and-reliability-of-three-dimensional-palatal-superimposition-of-digital-dental-models
#1
Sameh Talaat, Ahmed Kaboudan, Christoph Bourauel, Nivine Ragy, Katherine Kula, Ahmed Ghoneima
No abstract text is available yet for this article.
February 17, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28335646/synthesis-of-an-acridine-orange-sulfonamide-derivative-with-potent-carbonic-anhydrase-ix-inhibitory-action
#2
Marco Bragagni, Fabrizio Carta, Sameh M Osman, Zeid AlOthman, Claudiu T Supuran
Acridine orange (AO) a fluorescent cationic dye used for the management of human musculoskeletal sarcomas, due to its strong tumoricidal action and accumulation in the acidic environment typical of hypoxic tumors, was used for the preparation of a primary sulfonamide derivative. The rationale behind the drug design is the fact that hypoxic, acidic tumors overexpress carbonic anhydrase (CA, EC 4.2.1.1) isoforms, such as CA IX, which is involved in pH regulation, proliferation, cell migration and invasion, and this enzyme is strongly inhibited by primary sulfonamides...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28331062/hypoxia-inducible-factor-1%C3%AE-activation-improves-renal-oxygenation-and-mitochondrial-function-in-early-chronic-kidney-disease
#3
Joanna L Thomas, Hai Pham, Ying Li, Elanore Hall, Guy A Perkins, Sameh S Ali, Hemal H Patel, Prabhleen Singh
Pathophysiology of chronic kidney disease (CKD) is driven by alterations in surviving nephrons to sustain renal function with ongoing nephron loss. Oxygen supply-demand mismatch, due to hemodynamic adaptations, with resultant hypoxia, plays an important role in the pathophysiology in early CKD. We sought to investigate the underlying mechanisms of this mismatch. We utilized the subtotal nephrectomy (STN) model of CKD to investigate the alterations in renal oxygenation linked to sodium (Na) transport and mitochondrial function in the surviving nephrons...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28325789/sex-specific-differences-in-mitochondria-biogenesis-morphology-respiratory-function-and-ros-homeostasis-in-young-mouse-heart-and-brain
#4
Abdel Rahman M Khalifa, Engy A Abdel-Rahman, Ali M Mahmoud, Mohamed H Ali, Maha Noureldin, Saber H Saber, Mahmoud Mohsen, Sameh S Ali
Sex-specific differences in mitochondrial function and free radical homeostasis are reported in the context of aging but not well-established in pathogeneses occurring early in life. Here, we examine if sex disparity in mitochondria function, morphology, and redox status starts early and hence can be implicated in sexual dimorphism in cardiac as well as neurological disorders prevalent at young age. Although mitochondrial activity in the heart did not significantly vary between sexes, female brain exhibited enhanced respiration and higher reserve capacity...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28322163/geriatric-oriented-high-dose-nutraceutical-odts-formulation-and-physicomechanical-characterization
#5
Ahmed M Agiba, Sameh Abdel-Hamid, Maha Nasr, Ahmed S Geneidi
CONTEXT: Oral disintegrating tablets (ODTs) represent a better option than conventional tablets for geriatric population, owing to their fast onset of action and their better patient compliance. OBJECTIVE: Two principal therapeutic high-dose nutraceuticals; chondroitin sulphate and glucosamine were formulated into an oral disintegration tablet (ODT) intended for sublingual administration, and optimized to improve compliance and achieve rapid onset of action in osteoarthritis treatment...
March 20, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28318638/optical-coherence-tomography-guided-decisions-in-retinoblastoma-management
#6
Sameh E Soliman, Cynthia VandenHoven, Leslie D MacKeen, Elise Héon, Brenda L Gallie
PURPOSE: Assess the role of handheld optical coherence tomography (OCT) in guiding management decisions during diagnosis, treatment, and follow-up of eyes affected by retinoblastoma. DESIGN: Retrospective, noncomparative, single-institution case series. PARTICIPANTS: All children newly diagnosed with retinoblastoma from January 2011 to December 2015 who had an OCT session during their active treatment at The Hospital for Sick Children (SickKids) in Toronto, Canada...
March 15, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28306364/white-orbital-mass-after-enucleation-for-retinoblastoma-the-power-of-illusion
#7
Sameh E Soliman, William Halliday, Furqan Shaikh, Helen Chan, Elise Hèon, Brenda L Gallie
No abstract text is available yet for this article.
March 17, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28303721/effectiveness-and-safety-of-vildagliptin-and-vildagliptin-add-on-to-metformin-in-real-world-settings-in-egypt-results-from-the-guard-study
#8
Salah Shelbaya, Sameh Rakha
OBJECTIVE: The GUARD study evaluated the effectiveness, safety, and tolerability of vildagliptin treatment with or without metformin in patients with type 2 diabetes mellitus (T2DM) in real-life settings. Here we present the results of the GUARD study for the patient subset from Egypt. RESEARCH DESIGN AND METHODS: This was a 24 ± 6 weeks, prospective, non-interventional study that enrolled adult patients with T2DM receiving vildagliptin or vildagliptin + metformin combination therapy as per local prescribing information...
March 17, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28302746/current-interventional-and-surgical-management-of-congenital-heart-disease-specific-focus-on-valvular-disease-and-cardiac-arrhythmias
#9
Kimberly A Holst, Sameh M Said, Timothy J Nelson, Bryan C Cannon, Joseph A Dearani
Successful outcome in the care of patients with congenital heart disease depends on a comprehensive multidisciplinary team. Surgery is offered for almost every heart defect, despite complexity. Early mortality for cardiac surgery in the neonatal period is ≈10% and beyond infancy is <5%, with 90% to 95% of patients surviving with a good quality of life into the adult years. Advances in imaging have facilitated accurate diagnosis and planning of interventions and surgical procedures. Similarly, advances in the perioperative medical management of patients, particularly with intensive care, has also contributed to improving outcomes...
March 17, 2017: Circulation Research
https://www.readbyqxmd.com/read/28297037/safety-of-silicone-oil-removal-in-cases-of-gunshot-perforating-eye-injuries
#10
Hammouda Hamdy Ghoraba, Sameh Mohamed Elgouhary, Hosam Osman Mansour, Hitham Mamoun Abdel-Fattah, Mohamed Amin Heikal, Emad Mohamed Elgemaey
BACKGROUND AND OBJECTIVE: To evaluate the feasibility and safety of silicone oil (SO) removal in cases of gunshot perforating eye injuries (PEI). PATIENTS AND METHODS: A retrospective, consecutive, interventional study from medical records regarding cases of gunshot PEI during the periods of Egyptian political instability (January 2011 until December 2013). The main outcomes were to evaluate the feasibility of SO removal in cases of gunshot PEI and management of retinal detachment (RD) after SO removal in such cases...
March 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28284501/cardiopulmonary-exercise-test-in-adults-with-prior-fontan-operation-the-prognostic-value-of-serial-testing
#11
Alexander C Egbe, David J Driscoll, Arooj R Khan, Sameh S Said, Emmanuel Akintoye, Fernando M Berganza, Heidi M Connolly
BACKGROUND: The purpose of the study was to determine the role of cardiopulmonary exercise test (CPET) indices in predicting cardiovascular adverse events (CAEs) in patients with Fontan palliation. CAE was defined as death or cardiac surgery. METHODS: Retrospective review of adult Fontan patients who had treadmill CPET at Mayo Clinic, 1994-2013. Patients with loss of follow-up defined as ≥2years without clinical follow-up were excluded. The results of serial CPETs were reviewed, and patients with CPETs meeting the following criteria were selected for analysis: maximum effort on serial CPETs, minimum of 3-year interval between CPETs, and absence of CAE between CPETs...
February 28, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28275511/can-percutaneous-nephrolithotomy-be-performed-as-an-outpatient-procedure
#12
Ahmed Fahmy, Hazem Rhashad, Omer Algebaly, Wael Sameh
OBJECTIVES: To examine the safety and effectiveness of percutaneous nephrolithotomy (PCNL) as an outpatient procedure, as in most centres PCNL is performed as an inpatient procedure that necessitates postoperative hospital admission. PATIENTS AND METHODS: Our study included 186 patients undergoing PCNL for renal calculi. Only those who met strict inclusion criteria were discharged home on the same day. Preoperative eligibility criteria for outpatient management included no complex medical problem, normal renal function, and easy access to an emergency room...
March 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/28250938/mutation-of-tyr137-of-the-universal-escherichia-coli-fimbrial-adhesin-fimh-relaxes-the-tyrosine-gate-prior-to-mannose-binding
#13
Said Rabbani, Eva-Maria Krammer, Goedele Roos, Adam Zalewski, Roland Preston, Sameh Eid, Pascal Zihlmann, Martine Prévost, Marc F Lensink, Andrew Thompson, Beat Ernst, Julie Bouckaert
The most prevalent diseases manifested by Escherichia coli are acute and recurrent bladder infections and chronic inflammatory bowel diseases such as Crohn's disease. E. coli clinical isolates express the FimH adhesin, which consists of a mannose-specific lectin domain connected via a pilin domain to the tip of type 1 pili. Although the isolated FimH lectin domain has affinities in the nanomolar range for all high-mannosidic glycans, differentiation between these glycans is based on their capacity to form predominantly hydrophobic interactions within the tyrosine gate at the entrance to the binding pocket...
January 1, 2017: IUCrJ
https://www.readbyqxmd.com/read/28247020/immunohistochemical-and-biochemical-evidence-for-the-presence-of-serotonin-containing-neurons-and-nerve-fibers-in-the-octopus-arm
#14
Jean-Pierre Bellier, Yu Xie, Sameh Mohamed Farouk, Yuko Sakaue, Ikuo Tooyama, Hiroshi Kimura
The octopus arm contains a tridimensional array of muscles with a massive sensory-motor system. We herein provide the first evidence for the existence of serotonin (5-HT) in the octopus arm nervous system and investigated its distribution using immunohistochemistry. 5-HT-like immunoreactive (5-HT-lir) nerve cell bodies were exclusively localized in the cellular layer of the axial nerve cord. Those cell bodies emitted 5-HT-lir nerve fibers in the direction of the sucker, the intramuscular nerves cords, the ganglion of the sucker, and the intrinsic musculature...
February 28, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28244059/medical-errors-in-neonatal-intensive-care-unit-at-benha-university-hospital-egypt
#15
REVIEW
Ahmed N El-Shazly, Mahmoud A Al-Azzouny, Doaa R Soliman, Neveen T Abed, Sameh S Attia
This study was conducted in the neonatal intensive care unit of Benha University Hospital, Egypt from 1 August 2012 to the 31 January 2013 to identify medical errors and to determine the risk factors and consequences of these errors. Errors were detected by follow-up of neonates and review of reports including nursing followup sheets, resident progression notes and investigation reports. We detected 3819 errors that affected 97% of neonates. Types of errors included 403 medication errors (10.55% of total errors), 652 errors in daily routine procedures (17...
February 21, 2017: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/28243403/laparoscopic-sleeve-gastrectomy-and-crural-repair-as-a-treatment-of-morbid-obesity-associated-with-gastroesophageal-reflux
#16
Sameh Gabr Attia
OBJECTIVE: The aim of this study was to evaluate the Laparoscopic Sleeve Gastrectomy (LSG) with simultaneous crural repair in treatment of morbid obesity associated with gastroesophageal reflux disease. METHODS: This prospective observational study was carried out from September 2012 to July 2016 in Al-Azhar University Hospital (Egypt). The study was conducted on 53 patients, 14 males (26.4%) and 39 females (73.6%) with the mean age 36.2 years (range 18-52 years), presenting with morbid obesity and reflux disease either symptomatic patients or asymptomatic (Endoscopic & Manometric), their mean Body Mass Index (BMI) was 50...
January 2017: Electronic Physician
https://www.readbyqxmd.com/read/28240047/antitumor-activity-of-intratracheal-inhalation-of-temozolomide-tmz-loaded-into-gold-nanoparticles-and-or-liposomes-against-urethane-induced-lung-cancer-in-balb-c-mice
#17
Mohamed A Hamzawy, Amira M Abo-Youssef, Heba F Salem, Sameh A Mohammed
The current study aimed to develop gold nanoparticles (GNPs) and liposome-embedded gold nanoparticles (LGNPs) as drug carriers for temozolomide (TMZ) and investigate the possible therapeutic effects of intratracheal inhalation of nanoformulation of TMZ-loaded gold nanoparticles (TGNPs) and liposome-embedded TGNPs (LTGNPs) against urethane-induced lung cancer in BALB/c mice. Physicochemical characters and zeta potential studies for gold nanoparticles (GNPs) and liposome-embedded gold nanoparticles (LGNPs) were performed...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28235401/expression-of-socs1-and-the-downstream-targets-of-its-putative-tumor-suppressor-functions-in-prostate-cancer
#18
Martin Chevrier, Diwakar Bobbala, Alberto Villalobos-Hernandez, Md Gulam Musawwir Khan, Sheela Ramanathan, Caroline Saucier, Gerardo Ferbeyre, Sameh Geha, Subburaj Ilangumaran
BACKGROUND: Suppressor of cytokine signaling 1 (SOCS1) is considered a tumor suppressor due to frequent epigenetic and micro-RNA-mediated repression of its gene expression in diverse cancers. In prostate cancer (PCa), elevated expression of miR-30d that targets SOCS1 mRNA is associated with increased risk of disease recurrence. SOCS1 can mediate its tumor suppressor functions by diverse mechanisms such as inhibiting the JAK-STAT signaling pathway, promoting the tumor suppressor functions of p53, attenuating MET receptor tyrosine kinase signaling and blocking the oncogenic potential of the cell cycle inhibitor p21(CIP1) (p21)...
February 24, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28224289/two-different-techniques-for-frontalis-suspension-using-gore-tex-to-treat-severe-congenital-ptosis
#19
Adel Galal Zaky, Sameh Saad Mandour, Marwa Aly Zaky, Asmaa Mohamed Ebrahem
PURPOSE: Severe congenital ptosis is commonly associated with poor levator function. This study compares the functional and cosmetic outcomes of open versus closed frontalis sling using Gore-Tex in the treatment of such conditions. METHODS: Randomized interventional comparative case series of 20 eyes of 13 patients with severe congenital ptosis with levator excursion < 4 mm. Patients were treated by frontalis suspension using Gore-Tex string sutures either through a skin crease incision (group 1) or supraciliary incisions (group II)...
February 21, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28212372/molecular-biology-of-gastroesophageal-cancers-opportunities-and-challenges
#20
REVIEW
Shaheer Khan, Sameh Mikhail, Joanne Xiu, Mohamed E Salem
Gastroesophageal (GE) malignancies make up a significant and growing segment of newly diagnosed cancers. Approximately 80% of patients who have GE cancers die within 5 years of diagnosis, which means that effective treatments for these malignancies need to be found. Currently, targeted therapies have a minimal role in this disease group. Intensive study of the molecular biology of GE cancers is a relatively new and ongoing venture, but it has already led to a significant increase in our understanding of these malignancies...
January 2017: Clinical Advances in Hematology & Oncology: H&O
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