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https://www.readbyqxmd.com/read/28534587/light-induced-relaxation-dynamics-of-the-ferricyanide-ion-revisited-by-ultrafast-xuv-photoelectron-spectroscopy
#1
Nicholas Engel, Sergey I Bokarev, Alexandre Moguilevski, Azhr A Raheem, Ruba Al-Obaidi, Tobias Möhle, Gilbert Grell, Katrin R Siefermann, Bernd Abel, Saadullah G Aziz, Oliver Kühn, Mario Borgwardt, Igor Yu Kiyan, Emad F Aziz
Photoinduced charge transfer in transition-metal coordination complexes plays a prominent role in photosynthesis and is fundamental for light-harvesting processes in catalytic materials. However, revealing the relaxation pathways of charge separation remains a very challenging task because of the complexity of relaxation channels and ultrashort time scales. Here, we employ ultrafast XUV photoemission spectroscopy to monitor fine mechanistic details of the electron dynamics following optical ligand-to-metal charge-transfer excitation of ferricyanide in aqueous solution...
May 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28532700/gastric-cancer-as-preventable-disease
#2
Massimo Rugge, Robert M Genta, Francesco Di Mario, Emad M El-Omar, Hashem B El-Serag, Matteo Fassan, Richard H Hunt, Ernst J Kuipers, Peter Malfertheiner, Kentaro Sugano, David Y Graham
Gastric cancer (GC), one of the five most common causes of cancer death, is associated with a 5-year overall survival rate less than 30%. A minority of cancers occurs as part of syndromic diseases; more than 90% of adenocarcinomas are considered as the ultimate consequence of a longstanding mucosal inflammation. H. pylori infection is the leading etiology of non-self-limiting gastritis, which may result in atrophy of the gastric mucosa and impaired acid secretion. Gastric atrophy establishes a field of cancerization prone to further molecular and phenotypic changes, possibly resulting in cancer growth...
May 19, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28532503/an-updated-predict-breast-cancer-prognostication-and-treatment-benefit-prediction-model-with-independent-validation
#3
Francisco J Candido Dos Reis, Gordon C Wishart, Ed M Dicks, David Greenberg, Jem Rashbass, Marjanka K Schmidt, Alexandra J van den Broek, Ian O Ellis, Andrew Green, Emad Rakha, Tom Maishman, Diana M Eccles, Paul D P Pharoah
BACKGROUND: PREDICT is a breast cancer prognostic and treatment benefit model implemented online. The overall fit of the model has been good in multiple independent case series, but PREDICT has been shown to underestimate breast cancer specific mortality in women diagnosed under the age of 40. Another limitation is the use of discrete categories for tumour size and node status resulting in 'step' changes in risk estimates on moving between categories. We have refitted the PREDICT prognostic model using the original cohort of cases from East Anglia with updated survival time in order to take into account age at diagnosis and to smooth out the survival function for tumour size and node status...
May 22, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28531119/quality-attributes-and-in-vitro-bioequivalence-of-different-brands-of-amoxicillin-trihydrate-tablets
#4
Moawia M Al-Tabakha, Khairi M S Fahelelbom, Dana Emad Eddin Obaid, Sadik Sayed
Bacterial resistance and antibiotic drug effectiveness can be related to administering generic products with a subtherapeutic dose or poor in vivo drug release. The aim of this study was to investigate whether locally marketed amoxicillin tablets have the required chemical and physical attributes, including in vitro bioequivalence performance. Five generic products (T1, T2, T3, T4, and T5) containing combination of amoxicillin trihydrate and potassium clavulanate as 1 g strength present in immediate release tablets were compared to the reference listed drug product Augmentin® (R) for weight variation, friability, resistance to crushing, and chemical content of amoxicillin...
May 20, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28509703/pathway-for-the-management-of-atrial-fibrillation-and-atrial-flutter
#5
Eyal Herzog, Edgar Argulian, Steven B Levy, Emad F Aziz
Atrial fibrillation (AF) is the most common cardiac rhythm disturbance encountered in clinical practice, and its prevalence is increasing as the population ages. The American College of Cardiology, the American Heart Association, and the European Society of Cardiology established guidelines for the management of patients with AF. Atrial flutter (Afl) is less common and is often associated with or preceded by AF or occurs in an isolated pattern. A major limitation of the currently published guidelines for the management of patients with AF and Afl is their complexity, the fact that official guidelines are published separately for each of these arrhythmias, and that they were published several years ago...
June 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28503234/error-reporting-from-the-da-vinci-surgical-system-in-robotic-surgery-a-canadian-multispecialty-experience-at-a-single-academic-centre
#6
Emad Rajih, Côme Tholomier, Beatrice Cormier, Vanessa Samouëlian, Thomas Warkus, Moishe Liberman, Hugues Widmer, Jean-Baptiste Lattouf, Abdullah M Alenizi, Malek Meskawi, Roger Valdivieso, Pierre-Alain Hueber, Pierre I Karakewicz, Assaad El-Hakim, Kevin C Zorn
INTRODUCTION: The goal of the study is to evaluate and report on the third-generation da Vinci surgical (Si) system malfunctions. METHODS: A total of 1228 robotic surgeries were performed between January 2012 and December 2015 at our academic centre. All cases were performed by using a single, dual console, four-arm, da Vinci Si robot system. The three specialties included urology, gynecology, and thoracic surgery. Studied outcomes included the robotic surgical error types, immediate consequences, and operative side effects...
May 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28502133/t-regulatory-cells-response-to-allergen-specific-immunotherapy-in-patients-with-allergic-airway-diseases-a-prospective-study
#7
Raghdaa A Ramadan, Emad A Morad, Mohamed El-Shabrawy
Forkhead box P3 (FoxP3) T regulatory (Treg) cells modulate the immune system by blocking other types of T-cells. They maintain tolerance to self-antigens and help in inducing tolerance to foreign antigens. A deregulation of FoxP3 Tregs seems to play an important role in allergic disorders. The aim of this work was to study the response of FoxP3 Treg cells and their FoxP3 expression in patients, attending the Allergy Unit and the Chest Outpatient Clinic, Faculty of Medicine, Zagazig University, with allergic airway diseases, before and 1 year after receiving subcutaneous allergen specific immunotherapy (SIT)...
June 2016: Egyptian Journal of Immunology
https://www.readbyqxmd.com/read/28499493/bifunctional-dentifrice-amorphous-polyphosphate-a-regeneratively-active-sealant-with-potent-anti-streptococcus-mutans-activity
#8
Werner E G Müller, Meik Neufurth, Maximilian Ackermann, Emad Tolba, Michael Korzhev, Shunfeng Wang, Qingling Feng, Heinz C Schröder, Xiaohong Wang
OBJECTIVE: In this study we demonstrate that inorganic polyphosphate (polyP) exhibits a dual protective effect on teeth: it elicits a strong antibacterial effect against the cariogenic bacterium Streptococcus mutans and, in form of amorphous calcium polyP microparticles (size of 100-400nm), it efficiently reseals cracks/fissures in the tooth enamel and dentin. METHODS: Three different formulations of amorphous polyP microparticles (Ca-polyP, Zn-polyP and Sr-polyP) were prepared...
May 9, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28496947/efficient-media-for-high-lipase-production-one-variable-at-a-time-approach
#9
Safoura Soleymani, Houri Alizadeh, Hossein Mohammadian, Emad Rabbani, Fatemeh Moazen, Hamid MirMohammad Sadeghi, Ziaedin Samsam Shariat, Zahra Etemadifar, Mohammed Rabbani
BACKGROUND: Lipase enzymes have applications in a wide range of industries. A crucial determining factor of industrial prices of these enzymes is the culture media composition that is constantly under review by researchers. In this work, for maximum lipase production by Bacillus sp. ZR-5, culture media compositions were optimized using ″one variable at a time″ strategy. METHODS: For this purpose, the culture medium parameters such as low and high cost carbon and nitrogen sources, substrates and incubation times were evaluated...
April 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28493374/polyphenols-and-their-role-in-obesity-management-a-systematic-review-of-randomized-clinical-trials
#10
REVIEW
Grace Farhat, Sandra Drummond, Emad A S Al-Dujaili
Polyphenols have been suggested to reduce body weight and modify body composition through different mechanisms. These effects have been extensively studied in animals and in vitro and to a lesser extent in humans. The aim of this review is to consider the association between polyphenols and body weight status by focusing on human intervention studies. We conducted a systematic literature search in MEDLINE (via EBSCOhost), ProQuest CENTRAL, and Cochrane CENTRAL without time restrictions. Randomized controlled trials assessing the effect of polyphenols on weight and/or body composition in the overweight and/or obese population were included...
May 11, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28493003/bio-shielding-in-situ-forming-gels-bsifg-loaded-with-lipospheres-for-depot-injection-of-quetiapine-fumarate-in-vitro-and-in-vivo-evaluation
#11
Mustafa M Abo Elela, Nermeen A ElKasabgy, Emad B Basalious
Quetiapine fumarate (QF), an anti-schizophrenic drug, suffers from rapid elimination and poor bioavailability due to extensive first-pass effect. Intramuscularly (IM) injected lipospheres were designed to enhance the drug's bioavailability and extend its release. A central composite design was applied to optimize the liposphere preparation by a melt dispersion technique using Compritol® 888 ATO or glyceryl tristearate as lipid component and polyvinyl alcohol as surfactant. Lipospheres were evaluated for their particle size, entrapment efficiency, and in vitro release...
May 10, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28490844/attitudes-of-dental-professional-staff-and-auxiliaries-in-riyadh-saudi-arabia-toward-disclosure-of-medical-errors
#12
Nora S Al-Nomay, Abdulghani Ashi, Aljohara Al-Hargan, Abdulaziz Alshalhoub, Emad Masuadi
AIM: To collect empirical data on the attitudes of dental professionals and dental auxiliaries in Riyadh, Saudi Arabia, regarding the disclosure of medical errors. METHODS: A cross-sectional study was conducted, involving the administration of a questionnaire to a sample of 586 participants recruited from over 10 government and private dental institutions in Riyadh between August 2015 and January 2016. The questionnaire collected information regarding participant opinions on (a) personal beliefs, norms, and practices regarding medical errors, (b) the nature of errors that should be disclosed, and (c) who should disclose errors...
April 2017: Saudi Dental Journal
https://www.readbyqxmd.com/read/28479383/association-of-irisin-and-fndc5-rs16835198-g-t-gene-polymorphism-with-type-2-diabetes-mellitus-and-diabetic-nephropathy-an-egyptian-pilot-study
#13
Emad Gamil Khidr, Shawkey Seddik Ali, Mostafa Mahmoud El-Shafaey, Olfat Ahmed Fawzy
Diabetes mellitus is a fast-growing health problem in Egypt affecting morbidity, mortality and health care resources. Irisin, a new exercise-induced myokine inducing browning of white adipose tissues, has gained a great interest as a potential new target for combating type 2 diabetes mellitus (T2DM) and its complications. In this study, we assessed serum irisin levels in T2DM and diabetic nephropathy to elucidate possible relationships between irisin and metabolic parameters and renal functions. We also investigated, for the first time in Egypt, the association of FNDC5 rs16835198 G<T polymorphism with T2DM, diabetic nephropathy and irisin levels...
May 4, 2017: Gene
https://www.readbyqxmd.com/read/28478768/a-systematic-review-of-diet-quality-indices-in-relation-to-obesity
#14
Golaleh Asghari, Parvin Mirmiran, Emad Yuzbashian, Fereidoun Azizi
Tools, called 'diet/dietary quality indices', evaluate the level of adherence to a specified pattern or a set of recommendations in populations. Yet, there are no review studies providing unanimous comprehensive results of dietary indices on obesity. We reviewed observational studies, focusing on the association of diet quality indices with general obesity or abdominal obesity in adults. We systematically conducted a search in all English language publications available on MEDLINE, ISI Web of Science and Embase between January 1990 and January 2016...
May 8, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28476129/physician-practice-in-food-allergy-prevention-in-the-middle-east-and-north-africa
#15
Yvan Vandenplas, Abdulrahman Saleh AlFrayh, Bandar AlMutairi, Mahmoud Salah Elhalik, Robin J Green, Joseph Haddad, Emad Abdulqader Koshak, Mohamad Miqdady, Nezha Mouane, Mohamed Salah, Gamal Samy, Marzieh Tavakol, Andrea von Berg, Hania Szajewska
BACKGROUND: A number of scientific organisations have developed guidelines for the primary prevention of allergic disease through nutritional interventions. However, even if the best evidence-based guidelines are available, these guidelines do not necessarily lead to adherence and improved health outcomes. METHOD: To determine how closely the practice of physicians in select Middle Eastern and North African countries compares with the current recommendations on the primary prevention of allergy a survey study was performed using a structured questionnaire and convenience sampling...
May 5, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28474427/robotic-thyroidectomy-and-parathyroidectomy-an-initial-experience-with-retroauricular-approach
#16
Mohammed Alshehri, Hossam Eldin Mohamed, Thomas Moulthrop, Emad Kandil
BACKGROUND: New approaches for robotic-assisted thyroidectomy were recently described. The purpose of this study was to present the report of our initial experience using a retroauricular approach for thyroid and parathyroid surgeries. METHODS: This is a prospective study that was conducted under institutional review board approval and all surgeries were performed by a single surgeon at a North American academic institution. Some patients underwent an additional concomitant neck lift surgery in addition to the thyroid surgery...
May 5, 2017: Head & Neck
https://www.readbyqxmd.com/read/28468739/a-phase-iii-study-of-lenalidomide-maintenance-after-debulking-therapy-in-patients-with-advanced-cutaneous-t-cell-lymphoma-eortc-21081-nct01098656-results-and-lessons-learned-for-future-trial-designs
#17
Martine Bagot, Baktiar Hasan, Sean Whittaker, Marie Beylot-Barry, Robert Knobler, Emad Shah, Sandrine Marreaud, Stephen Morris, Stephane Dalle, Octavio Servitje, Richard Cowan, Liisa Väkevä, Guillaume Chaby, Constanze Jonak, Christopher P Fox, Diana Ritchie, Maarten H Vermeer, Rudolf Stadler, Pablo L Ortiz Romero, Julia Scarisbrick, Pietro Quaglino
EORTC 21081 was a randomized phase III study of observation alone versus lenalidomide maintenance (25 mg po for 21 days) after debulking therapy in patients with advanced-stage cutaneous T-cell lymphomas (CTCLs). The aim was to investigate whether maintenance treatment with lenalidomide prolonged response after debulking in patients who had not been previously treated with intravenous chemotherapy. A total of 26 centres from 10 different European countries registered 30 patients with advanced CTCL. Twenty-one patients were randomized (20% of the 105 patients initially deemed necessary for the study; the study was terminated early following withdrawal of funding support from Celgene)...
May 3, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28467761/review-of-robotic-surgery-in-gynecology-the-future-is-here
#18
REVIEW
Roy Lauterbach, Emad Matanes, Lior Lowenstein
The authors present a systematic review of randomized and observational, retrospective and prospective studies to compare between robotic surgery as opposed to laparoscopic, abdominal, and vaginal surgery for the treatment of both benign and malignant gynecologic indications. The comparison focuses on operative times, surgical outcomes, and surgical complications associated with the various surgical techniques. PubMed was the main search engine utilized in search of study data. The review included studies of various designs that included at least 25 women who had undergone robotic gynecologic surgery...
April 28, 2017: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/28464732/oral-probenecid-improves-sperm-motility-in-men-with-spinal-cord-injury
#19
Emad Ibrahim, Teodoro C Aballa, Charles M Lynne, Nancy L Brackett
STUDY DESIGN: Prospective cohort study (twenty men with spinal cord injury [SCI]). OBJECTIVE: Determine if administration of oral probenecid results in improved sperm motility in men with SCI. SETTING: Major university medical center. METHODS: Twenty men with SCI were administered probenecid for 4 weeks (250 mg twice a day for 1 week, followed by 500 mg twice a day for 3 weeks). Semen quality was assessed at three time points: pre-treatment, post-treatment (immediately after the 4-week treatment), and follow-up (4 weeks after the last pill was ingested)...
May 2, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28462851/editor-s-perspective-how-rare-is-rare
#20
EDITORIAL
Emad Shash
No abstract text is available yet for this article.
April 24, 2017: Journal of the Egyptian National Cancer Institute
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