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https://www.readbyqxmd.com/read/28212806/clonal-evolution-as-detected-by-interphase-fluorescence-in-situ-hybridization-is-associated-with-worse-overall-survival-in-a-population-based-analysis-of-patients-with-chronic-lymphocytic-leukemia-in-british-columbia-canada
#1
Steven J Huang, Krystal Bergin, Adam C Smith, Alina S Gerrie, Helene Bruyere, Chinmay B Dalal, Daniele K Sugioka, Monica Hrynchak, Khaled M Ramadan, Aly Karsan, Tanya L Gillan, Cynthia L Toze
This study evaluates prognostic markers as predictors of clonal evolution (CE) and assesses the impact of CE on overall survival (OS) in a population-based cohort of 159 consecutive eligible patients with chronic lymphocytic leukemia (CLL) obtained from the British Columbia Provincial CLL Database. CE was detected by interphase fluorescence in situ hybridization (FISH) in 34/159 patients (21%) with 65% of CE patients acquiring deletion 17p or 11q. CD38 positive status (≥30%) on flow cytometry predicted 2...
January 2017: Cancer Genetics
https://www.readbyqxmd.com/read/28211835/how-many-days-are-required-for-workers-to%C3%A2-acclimatize-to-heat
#2
Tamer Mohamed Khalaf, Mohamed Zaki Ramadan, Riyad A Al-Ashaikh
BACKGROUND: Many research studies require recruiting heat-acclimatized workers to participate in heat-stress experiments and application fields. A reliable heat acclimatization program for workers in countries with hot environments has not been reported yet. OBJECTIVE: The objective of this study was to estimate the effects of heat stress and the amount of acclimatization required in hot-climate countries. METHODS: Eighteen male workers from an industrial population participated in this experiment...
February 17, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28205648/identification-of-a-novel-nampt-inhibitor-by-crispr-cas9-chemogenomic-profiling-in-mammalian-cells
#3
David Estoppey, Jeffrey W Hewett, Chantale T Guy, Edmund Harrington, Jason R Thomas, Markus Schirle, Rachel Cuttat, Annick Waldt, Bertran Gerrits, Zinger Yang, Sven Schuierer, Xuewen Pan, Kevin Xie, Walter Carbone, Judith Knehr, Alicia Lindeman, Carsten Russ, Elizabeth Frias, Gregory R Hoffman, Malini Varadarajan, Nadire Ramadan, John S Reece-Hoyes, Qiong Wang, Xin Chen, Gregory McAllister, Guglielmo Roma, Tewis Bouwmeester, Dominic Hoepfner
Chemogenomic profiling is a powerful and unbiased approach to elucidate pharmacological targets and the mechanism of bioactive compounds. Until recently, genome-wide, high-resolution experiments of this nature have been limited to fungal systems due to lack of mammalian genome-wide deletion collections. With the example of a novel nicotinamide phosphoribosyltransferase (NAMPT) inhibitor, we demonstrate that the CRISPR/Cas9 system enables the generation of transient homo- and heterozygous deletion libraries and allows for the identification of efficacy targets and pathways mediating hypersensitivity and resistance relevant to the compound mechanism of action...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28199928/spectrophotometric-determination-of-meclizine-hydrochloride-and-pyridoxine-hydrochloride-in-laboratory-prepared-mixtures-and-in-their-pharmaceutical-preparation
#4
Maha M Ibrahim, Eman S Elzanfaly, Mohamed B El-Zeiny, Nesreen K Ramadan, Khadiga M Kelani
In this paper, three rapid, simple, accurate and precise spectrophotometric methods were developed for the determination of meclizine hydrochloride in the presence of pyridoxine hydrochloride without previous separation. The methods under study are dual wavelength (DWL), ratio difference (RD) and continuous wavelet transform (CWT). On the other hand, pyridoxine hydrochloride (PYH) was determined directly at 291nm. The methods obey Beer's law in the range of (5-50μg/mL) for both compounds. All the methods were validated according to the ICH guidelines where the accuracy was found to be 98...
February 8, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28193563/calcium-oxidative-stress-and-connexin-channels-a-harmonious-orchestra-directing-the-response-to-radiotherapy-treatment
#5
REVIEW
Elke Decrock, Delphine Hoorelbeke, Raghda Ramadan, Tinneke Delvaeye, Marijke De Bock, Nan Wang, Dmitri V Krysko, Sarah Baatout, Geert Bultynck, An Aerts, Mathieu Vinken, Luc Leybaert
Although radiotherapy is commonly used to treat cancer, its beneficial outcome is frequently hampered by the radiation resistance of tumor cells and adverse reactions in normal tissues. Mechanisms of cell-to-cell communication and how intercellular signals are translated into cellular responses, have become topics of intense investigation, particularly within the field of radiobiology. A substantial amount of evidence is available demonstrating that both gap junctional and paracrine communication pathways can propagate radiation-induced biological effects at the intercellular level, commonly referred to as radiation-induced bystander effects (RIBE)...
February 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28183984/abdominal-pseudocyst-a-rare-complication-of-ventriculoperitoneal-shunting
#6
Rameesha Anwar, Ahmed-Ramadan Sadek, Girish Vajramani
Abdominal cerebrospinal fluid (CSF) pseudocyst is a rare complication of ventriculoperitoneal shunting. It is well known in children but uncommon in adults. We present a 30-year-old woman with abdominal distension, vomiting and confusion caused by her developing an abdominal CSF pseudocyst, 13 years after her last shunt revision. Adult neurologists need to be aware of this late complication.
February 9, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28181087/fasting-diabetes-and-optimizing-health-outcomes-for-ramadan-observers-a-literature-review
#7
REVIEW
Hadi A Almansour, Betty Chaar, Bandana Saini
INTRODUCTION: Globally, and in Australia, diabetes has become a common chronic health condition. Diabetes is also quite prevalent in culturally and linguistically diverse pockets of the Australian population, including Muslims. There are over 90 million Muslims with diabetes worldwide. Diabetes management and medication use can be affected by religious practices such as fasting during Ramadan. During Ramadan, Muslims refrain from oral or intravenous substances from sunrise to sunset...
February 8, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28171810/short-versus-long-small-sided-game-training-during-ramadan-in-soccer-players
#8
Hana Baklouti, Noureddine Rejeb, Asma Aloui, Hamdi Jaafar, Achraf Ammar, Hamdi Chtourou, Olivier Girard, Nizar Souissi
OBJECTIVE: To compare the effects of two small-sided game (SSG) training formats (4 × 4 min (SSG-S) and 2 × 8 min (SSG-L)) conducted during Ramadan on Hoff and five-jump (5JT) tests' performances and session rating of perceived exertion (sRPE). DESIGN: Three group, case-control. SETTING: Field tests. PARTICIPANTS: Twenty-four male soccer players were divided into 3 groups: 2 groups undertaking 4 weeks of SSG-S (n = 8) or SSG-L (n = 8) during Ramadan and a control group (n = 8)...
October 24, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28158065/angle-tolerant-hybrid-plasmonic-filters-for-visible-light-communications
#9
Noha Anous, Mohamed Abdallah, Tarek Ramadan, Khalid Qaraqe, Diaa Khalil
This work presents what we believe is a novel design of a hybrid plasmonic-transmission blue filter for visible light communication systems that employ yellow phosphor-coated blue light-emitting diodes. The proposed filter balances the trade-off between transmission performance and tolerance to variation in angles of incidence (AOIs) while maintaining a low cost with limited complexity design. The designed filter operation is based upon quasi-plasmon mode excitation in a hybrid structure of alternating layers of silver and titanium dioxide over a silica substrate...
February 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28157628/characterization-of-treatment-and-outcomes-in-a-population-based-cohort-of-patients-with-chronic-lymphocytic-leukemia-referred-for-cytogenetic-testing-in-british-columbia-canada
#10
Steven J Huang, Lauren J Lee, Alina S Gerrie, Tanya L Gillan, Helene Bruyere, Monica Hrynchak, Adam C Smith, Aly Karsan, Khaled M Ramadan, Kavisha S Jayasundara, Cynthia L Toze
This study evaluates outcomes in chronic lymphocytic leukemia (CLL) based on first-line therapy in a large consecutive population-based cohort of 669 patients with fluorescence in-situ hybridization (FISH) data in British Columbia, Canada during the period when chemoimmunotherapy was standard first-line treatment. When analyzed as a time-dependent variable, patients who required treatment (n=336) had a 4.7 times higher hazard of death than patients who did not (95% confidence interval 2.8-7.9, P<0.001). The majority of patients received fludarabine-rituximab (FR) in front-line...
January 15, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28157387/trigonelline-attenuates-hepatic-complications-and-molecular-alterations-in-high-fat-high-fructose-diet-induced-insulin-resistance-in-rats
#11
Nehal A Afifi, Amer Ramadan, Emad Y Erian, Dalia O Saleh, Ahmed A Sedik, Manal Badawi, Walid El Hotaby
The present study aimed to evaluate the effect of trigonelline (TRG) on the hepatic complications associated with high-fat high-fructose (HFHF) diet-induced insulin resistance (IR) in rats. IR was induced by giving a saturated fat diet and 10% fructose in drinking water to rats for 8 weeks. Insulin-resistant rats were orally treated with TRG (50 and 100 mg/kg), sitagliptin (SIT; 5 mg/kg), or a combination of TRG (50 mg/kg) and SIT (5 mg/kg) for 14 days. Liver homogenates were used for assessment of hepatic lipids, oxidative stress biomarkers, and inflammatory cytokines...
October 12, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28139205/the-putative-role-of-autophagy-in-the-pathogenesis-of-abdominal-aortic-aneurysms
#12
REVIEW
Azza Ramadan, Mohammed Al-Omran, Subodh Verma
Abdominal aortic aneurysms (AAA) are a significant cause of worldwide mortality and morbidity. While the histopathological characteristics of AAA are well documented, the cellular and molecular mechanisms involved in the pathogenesis of AAA are not entirely understood. Autophagy is a highly conserved basal cellular process in eukaryotic cells that involves the turnover of organelles and proteins. It is also activated as an adaptive response to stressful conditions to promote cell survival. While autophagy typically promotes pro-survival processes, it can sometimes lead to cellular demise...
January 16, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28127212/the-effects-of-ramadan-fasting-on-patients-with-prosthetic-heart-valve-taking-warfarin-for-anticoagulation
#13
Muhammad O Awiwi, Zeynep Aslan Yagli, Ferruh Elbir, Ahmet Arif Aglar, Erhan Guler, Unsal Vural
INTRODUCTION: Oral anticoagulation with warfarin is indicated for patients with prosthetic heart valves. The effects of religious fasting during Ramadan month (in the Islamic calendar) on anticoagulation aren't clear. OBJECTIVES: To study the impact of Ramadan fasting on international normalized ratio (INR), quality of anticoagulation, dose of warfarin used and blood osmolarity. METHODS: 18 patients were followed-up prospectively for 3 months (pre- Ramadan, Ramadan and post-Ramadan months)...
January 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28124653/practice-patterns-in-pediatric-chronic-rhinosinusitis-a-survey-of-the-american-rhinologic-society
#14
Daniel M Beswick, Hassan Ramadan, Fuad M Baroody, Peter H Hwang
BACKGROUND: The management of pediatric chronic rhinosinusitis (PCRS) is evolving. OBJECTIVE: To assess current practice patterns of members of the American Rhinologic Society (ARS) in managing PCRS. METHODS: A 27-item Web-based survey on treatment of PCRS was electronically distributed to the ARS membership. RESULTS: The survey was completed by 67 members, 40% of whom had completed a rhinology fellowship. The most frequently used medical therapies as part of initial treatment for PCRS were nasal saline solution irrigation, (90%), topical nasal steroids (93%), oral antibiotics (52%), and oral steroids (20%)...
November 1, 2016: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28121343/does-ramadan-fasting-contribute-to-the-increase-of-peptic-ulcer-perforations
#15
A Kocakusak
OBJECTIVE: Medical treatment has been widely used in peptic ulcer disease, however perforation is a severe complication. The rationale of this study was to evaluate the effect of Islamic Ramadan fasting on peptic ulcer perforation. PATIENTS AND METHODS: Patients (No. 2311) who were operated on due to peptic ulcer perforation in a teaching and reference Hospital of a State University from January 1979 to January 2016 were analyzed. Patients were divided into two groups...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28110482/the-evaluation-of-a-new-marker-of-transmyocardial-repolarization-parameters-in-ischemic-stroke-patients-t-peak-t-end-t-p-e-t-p-e-qtc
#16
Emine Emektar, Şeref Kerem Çorbacıoğlu, Osman Korucu, Selma Ramadan, Hüseyin Uzunosmanoğlu, Eda Kan, Yunsur Çevik
The cardiovascular manifestations of acute ischemic stroke have been well known. Several electrocardiography (ECG) abnormalities have been reported in patients following acute stroke, including QT interval prolongation, ST segment deviation and T-wave changes. This study aimed to investigate the changes in transmyocardial repolarization parameters, in ischemic stroke patients. The study is a prospective, blind, and controlled clinical study. The patients without cardiac disease who received ischemic stroke diagnoses were included in the study...
January 21, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28098105/fasting-in-ramadan-is-not-associated-with-deterioration-of-chronic-kidney-disease-a-prospective-observational-study
#17
Ekrem Kara, Osman Zikrullah Sahin, Bayram Kizilkaya, Burcu Ozturk, Gokhan Pusuroglu, Safak Yildirim, Mustafa Sevinc, Tuncay Sahutoglu
Although not mandatory for patients, many Muslims fast in Ramadan. We aimed to investigate the effects of long hours (17.5) fasting on renal functions in patients with chronic kidney disease (CKD). Stage 3-5 CKD patients with stable renal function were recruited to this prospective observational study three months ahead of Ramadan in 2015. All patients were instructed regarding possible deleterious effects of dehydration caused by fasting. Forty-five patients (mean age 66.8 ± 10.3 years, 68.8% male) chose to fast and 49 (mean, age: 64...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28095734/entrapment-efficiency-of-pyridoxine-hydrochloride-in-unilamellar-liposomes-experimental-versus-model-generated-data
#18
Heba Abd-El-Azim, Alyaa Ramadan, Noha Nafee, Nawal Khalafallah
The present study investigates the effect of the preparation method (four methods) and formulation additives (propylene glycol (PG) and cholesterol (CH)) on the entrapment efficiency (EE) of pyridoxine hydrochloride (vitamin B6 (VB6)), representing hydrophilic water-soluble low permeable vitamins, in unilamellar liposomes. The main aim is to compare determined EE with predicted values generated using a web-published, computational model. Results showed that among the different preparation methods, modified film hydration showed significantly higher EE (p < 0...
January 18, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28090146/rapid-weight-loss-in-the-context-of-ramadan-observance-recommendations-for-judokas
#19
REVIEW
A Aloui, H Chtourou, W Briki, M Tabben, A Chaouachi, N Souissi, R J Shephard, K Chamari
Judo is a weight-classified combat sport, and many athletes seek to compete at the lightest possible weight category to gain an advantage from competing against shorter/smaller, and supposedly weaker opponents. To achieve a desired weight, most judokas opt for rapid weight loss techniques. Short-duration maximal efforts are not greatly affected by "making weight", but prolonged and/or repeated exercise is significantly impaired. Negative effects on mood, ratings of perceived exertion, and cognitive function are also reported...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28087952/an-observational-study-of-trigeminal-neuralgia-patients-taking-carbamazepine-during-the-fasting-month-of-ramadan
#20
A J Ajura, S H Lau, S Nur Suffia
INTRODUCTION: Trigeminal neuralgia is an agonising orofacial pain affecting unilaterally the distribution of the trigeminal nerve and it usually occurs in the middle and older age groups. Carbamazepine which is an anti-neuralgic as well as an anti-convulsant medication is the first line drug for treatment of trigeminal neuralgia. It is commonly taken as one tablet (200 mg) three times a day. MATERIALS AND METHODS: This is an observational study carried out from April to September 2014 to determine how Muslim patients on carbamazepine treatment for trigeminal neuralgia cope with their neuralgic pain...
December 2016: Medical Journal of Malaysia
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