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https://www.readbyqxmd.com/read/28225826/assessing-mycoplasma-contamination-of-cell-cultures-by-qpcr-using-a-set-of-universal-primer-pairs-targeting-a-1-5-kb-fragment-of-16s-rrna-genes
#1
Audrey Jean, Florence Tardy, Omran Allatif, Isabelle Grosjean, Bariza Blanquier, Denis Gerlier
Mycoplasmas (a generic name for Mollicutes) are a predominant bacterial contaminant of cell culture and cell derived products including viruses. This prokaryote class is characterized by very small size and lack of a cell wall. Consequently, mycoplasmas escape ultrafiltration and visualization under routine microscopic examination, hence the ease with which cells in culture can be contaminated, with routinely more than 10% of cell lines being contaminated. Mycoplasma are a formidable threat both in fundamental research by perverting a whole range of cell properties and functions and in the pharmacological use of cells and cell derived products...
2017: PloS One
https://www.readbyqxmd.com/read/28215464/patients-with-intracranial-bleeding-and-atrial-fibrillation-treated-with-left-atrial-appendage-occlusion-results-from-the-amplatzer-cardiac-plug-registry
#2
Apostolos Tzikas, Xavier Freixa, Laura Llull, Sameer Gafoor, Samera Shakir, Heyder Omran, George Giannakoulas, Sergio Berti, Gennaro Santoro, Joelle Kefer, Adel Aminian, Steffen Gloekler, Ulf Landmesser, Jens Erik Nielsen-Kudsk, Ignacio Cruz-Gonzalez, Prapa Kanagaratnam, Fabian Nietlispach, Reda Ibrahim, Horst Sievert, Wolfgang Schillinger, Jai-Wun Park, Bernhard Meier, Haralampos Karvounis
BACKGROUND: In patients with non-valvular atrial fibrillation (NVAF), intracranial bleeding (ICB) constitutes a very challenging situation in which the rate of both ischemic and hemorrhagic events is increased. In these patients, left atrial appendage occlusion (LAAO) might represent a very valid alternative. OBJECTIVES: To investigate the procedural safety and long-term outcome of patients undergoing LAAO therapy due to previous ICB. METHODS: Data from the Amplatzer Cardiac Plug multicenter registry on 1047 consecutive patients were analyzed...
February 13, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28170060/abc-om-farmakologisk-symtomlindring-i-livets-slutskede
#3
Meis Omran, Staffan Lundström
No abstract text is available yet for this article.
February 3, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28165788/the-hairdryer-a-useful-adjunct-to-achieving-peripheral-venous-access
#4
Yasser Al Omran, Hannah Irvine, Alice Freebairn
No abstract text is available yet for this article.
2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28164635/microrna-122-as-a-novel-non-invasive-marker-of-liver-fibrosis-in-hepatitis-c-virus-patients
#5
Ahmed A S Omran, Khalid S Osman, Hanan M Kamel, Emad A Abdel-Naem, Dalia E El-Deen Hasan
BACKGROUND: Noninvasive evaluation of hepatic fibrosis is a growing scientific effort in medicine and is of particular interest as early diagnosis is important for the timely prevention and treatment of liver fibrosis and cirrhosis. Non-invasive markers of liver fibrosis have recently been developed as an alternative to liver biopsy. Aim of the work: The aim of this study was to assess the diagnostic value of serum microRNA 122 in Egyptian chronic hepatitis C virus infected patients. This may be a useful tool as a non invasive diagnostic test to detect early stages of fibrosis in comparison to 4 non invasive indexes (APRI, Forns, FIB-4, and FI) vs...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28139205/the-putative-role-of-autophagy-in-the-pathogenesis-of-abdominal-aortic-aneurysms
#6
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/28121280/knowledge-of-peripheral-arterial-disease-results-of-an-intervention-to-measure-and-improve-pad-knowledge-in-toronto
#7
Christo El Morr, Musaad AlHamzah, Peggy Ng, Amber Purewal, Mohammed Al-Omran
Background Prevalence of peripheral arterial disease (PAD) has dramatically increased in both developing, as well as developed countries. However, significant knowledge and practice gaps persist. In Canada, efforts to improve this knowledge level are lacking. In this study, we examine PAD knowledge in Toronto, and evaluate a pilot intervention to address the knowledge gaps. Objectives Measure PAD awareness in Toronto, and evaluate an intervention to improve PAD knowledge among the public. Methods In the context of a community-based awareness campaign, an interview-based survey was used to assess the PAD awareness among general public...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28101774/newborn-screening-for-remethylation-disorders-and-vitamin-b12-deficiency-evaluation-of-new-strategies-in-cohorts-from-qatar-and-germany
#8
Gwendolyn Gramer, Ghassan Abdoh, Tawfeg Ben-Omran, Noora Shahbeck, Rehab Ali, Laila Mahmoud, Junmin Fang-Hoffmann, Georg F Hoffmann, Hilal Al Rifai, Jürgen G Okun
BACKGROUND: Newborn screening is a precondition for early diagnosis and succeßsful treatment of remethylation disorders and classical homocystinuria (cystathionine-β-synthase deficiency). Newborn screening for classical homocystinuria using total homocysteine measurement in dried blood spots has been very successfully performed for many years for newborns from Qatar. METHODS: A new optimized newborn screening strategy for remethylation disorders and homocystinuria was developed and evaluated for newborns from Qatar using total homocysteine measurement as first-tier and methionine, methionine-phenylalanine-ratio and propionylcarnitine as second-tiers...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28093695/serum-zinc-deficiency-and-its-relation-to-liver-fibrosis-in-chronic-hcv-a-real-life-egyptian-study
#9
Dalia A Omran, Samar Kamal Darweesh, Hanan Fouad, Mohamed Mahmoud, Sameh Saif, Azza Fared, Mohamed Hassany, Lamiaa Mobarak, Mahmoud A El-Tahawy, Ayman Yosry
Zinc is essential for the activation of approximately 300 metallo-enzymes. Serum and hepatic zinc is decreased in chronic liver disease patients, and zinc depletion has been suggested to accelerate liver fibrosis. The study was designed to assess Zinc status in chronic HCV Egyptian patients and its relationship to fibrosis stage diagnosed by FibroScan. This was a cross-sectional study on 297 Egyptian patients with naïve chronic HCV. All patients underwent laboratory tests (including assessment of serum Zinc) and liver stiffness measurement (LSM) by Transient Elastography (FibroScan(®))...
January 16, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28093541/association-of-toll-like-receptor-3-and-toll-like-receptor-9-single-nucleotide-polymorphisms-with-hepatitis-c-virus-infection-and-hepatic-fibrosis-in-egyptian-patients
#10
Rania A Zayed, Dalia Omran, Doha A Mokhtar, Zinab Zakaria, Sameera Ezzat, Mohamed A Soliman, Lamiaa Mobarak, Hossam El-Sweesy, Ghada Emam
Toll-like receptors (TLRs) are recognized as fundamental contributors to the immune system function against infections. Hepatitis C virus (HCV) infection represents a global health problem especially in Egypt having the highest HCV prevalence worldwide where HCV infection is a continuing epidemic. The aim of the present study was to investigate the possible association between genetic variation in TLR-3 and TLR-9 and HCV infection and hepatic fibrosis in chronic HCV-positive Egyptian patients. The present study included 100 naïve chronic HCV-positive patients and 100 age- and sex-matched healthy controls...
January 16, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28078312/biallelic-scn10a-mutations-in-neuromuscular-disease-and-epileptic-encephalopathy
#11
Marios Kambouris, Julien Thevenon, Ariane Soldatos, Allison Cox, Joshi Stephen, Tawfeg Ben-Omran, Yasser Al-Sarraj, Hala Boulos, William Bone, James C Mullikin, Alice Masurel-Paulet, Judith St-Onge, Yannis Dufford, Corrine Chantegret, Christel Thauvin-Robinet, Jamil Al-Alami, Laurence Faivre, Jean Baptiste Riviere, William A Gahl, Alexander G Bassuk, May Christine V Malicdan, Hatem El-Shanti
OBJECTIVES: Two consanguineous families, one of Sudanese ethnicity presenting progressive neuromuscular disease, severe cognitive impairment, muscle weakness, upper motor neuron lesion, anhydrosis, facial dysmorphism, and recurrent seizures and the other of Egyptian ethnicity presenting with neonatal hypotonia, bradycardia, and recurrent seizures, were evaluated for the causative gene mutation. METHODS AND RESULTS: Homozygosity mapping and whole exome sequencing (WES) identified damaging homozygous variants in SCN10A, namely c...
January 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28077309/physical-and-biological-characteristics-of-multi-drug-resistance-mdr-an-integral-approach-considering-ph-and-drug-resistance-in-cancer
#12
REVIEW
Ziad Omran, Paula Scaife, Simon Stewart, Cyril Rauch
The role of the Warburg effect in cancer remains to be elucidated with a resurgence in research efforts over the past decade. Why a cancer cell would prefer to use energy inefficient glycolysis, leading to an alteration of pH both inside and outside of the cell, remains to be uncovered. The development of MDR represents a major challenge in the treatment of cancer and it is explained, so far, by the over expression of drug transporters such as the well-known and archetypal P-glycoprotein (Pgp). However, controversies exist regarding the function of Pgp in multi-drug resistance...
January 8, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28059456/comprehensive-computational-analysis-of-gwas-loci-identifies-ccr2-as-a-candidate-gene-for-celiac-disease-pathogenesis
#13
Babajan Banaganapalli, Omran Rashidi, Omar Saadah, Jun Wang, Imran Ali Khan Muhammed, Jumana Y Al-Aama, Noor Ahmad Shaik, Ramu Elango
Celiac disease (CD) is a gluten intolerance disorder with known genetic contribution. The recent fine mapping andgenome-wide association studies (GWAS) have identified up to 57 non-HLA CD susceptibility SNPs, majority of which are non-coding variants lacking any functional annotation. Therefore, we adopted multidimensional computational approach for uncovering the plausible mechanisms through which these GWAS SNPs are connected to CD pathogenesis. At initial phase, we identified that 25 (43.85%) out of 57 CD-SNPs lies in evolutionarily constrained genetic element regions...
January 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28052956/the-international-primary-ciliary-dyskinesia-cohort-ipcd-cohort-methods-and-first-results
#14
Myrofora Goutaki, Elisabeth Maurer, Florian S Halbeisen, Israel Amirav, Angelo Barbato, Laura Behan, Mieke Boon, Carmen Casaulta, Annick Clement, Suzanne Crowley, Eric Haarman, Claire Hogg, Bulent Karadag, Cordula Koerner-Rettberg, Margaret W Leigh, Michael R Loebinger, Henryk Mazurek, Lucy Morgan, Kim G Nielsen, Heymut Omran, Nicolaus Schwerk, Sergio Scigliano, Claudius Werner, Panayiotis Yiallouros, Zorica Zivkovic, Jane S Lucas, Claudia E Kuehni
Data on primary ciliary dyskinesia (PCD) epidemiology is scarce and published studies are characterised by low numbers. In the framework of the European Union project BESTCILIA we aimed to combine all available datasets in a retrospective international PCD cohort (iPCD Cohort).We identified eligible datasets by performing a systematic review of published studies containing clinical information on PCD, and by contacting members of past and current European Respiratory Society Task Forces on PCD. We compared the contents of the datasets, clarified definitions and pooled them in a standardised format...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28051195/risk-factors-for-developing-work-related-musculoskeletal-disorders-during-dairy-farming
#15
Sayed Mohammad Taghavi, Hamidreza Mokarami, Omran Ahmadi, Lorann Stallones, Asghar Abbaspour, Hossein Marioryad
BACKGROUND: Dairy farming work involves frequent use of poor postures. These postures may increase the risk of developing musculoskeletal disorders among dairy workers. OBJECTIVE: To assess postural load during performance of various tasks related to dairy farming. METHODS: This cross-sectional study was conducted on a dairy farm in Iran. In order to assess postural load, tasks related to dairy farming were divided into 3 categories: feeding, milking, and manure disposal...
January 2017: International Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28041644/mutations-in-pih1d3-cause-x-linked-primary-ciliary-dyskinesia-with-outer-and-inner-dynein-arm-defects
#16
Tamara Paff, Niki T Loges, Isabella Aprea, Kaman Wu, Zeineb Bakey, Eric G Haarman, Johannes M A Daniels, Erik A Sistermans, Natalija Bogunovic, Gerard W Dougherty, Inga M Höben, Jörg Große-Onnebrink, Anja Matter, Heike Olbrich, Claudius Werner, Gerard Pals, Miriam Schmidts, Heymut Omran, Dimitra Micha
Defects in motile cilia and sperm flagella cause primary ciliary dyskinesia (PCD), characterized by chronic airway disease, infertility, and left-right body axis disturbance. Here we report maternally inherited and de novo mutations in PIH1D3 in four men affected with PCD. PIH1D3 is located on the X chromosome and is involved in the preassembly of both outer (ODA) and inner (IDA) dynein arms of cilia and sperm flagella. Loss-of-function mutations in PIH1D3 lead to absent ODAs and reduced to absent IDAs, causing ciliary and flagellar immotility...
January 5, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28011413/a-systematic-review-and-meta-analysis-of-seroprevalence-of-varicella-zoster-virus-a-nationwide-population-based-study
#17
REVIEW
Omolbanin Amjadi, Alireza Rafiei, Mohammadreza Haghshenas, Reza Alizadeh Navaei, Reza Valadan, Zahra Hosseini-Khah, Akbar Hedayatizadeh Omran, Mohsen Arabi, Reza Jafari Shakib, Tahoora Mousavi, G Hossein Ashrafi
Varicella zoster virus (VZV) causes chicken pox as a primary infection following which it becomes latent in neurons. It may then reactivate to cause shingles (herpes zoster). Severity of lesions and VZV pathogenicity are depended on the host's immune response and variant in VZV Dr Athina Myrto ChioniIdentification of VZV seroprevalance rate in general population may lead to develop new health strategic managements such as vaccination. Therefore, we aimed to provide a systematic review of the seroprevalence of VZV infection among Iranian population and estimate age- and gender- specific prevalence of VZV...
December 6, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28005617/lateral-extracavitary-approach-versus-posterior-extensive-circumferential-decompression-in-the-treatment-of-complicated-thoracic-and-lumbar-tuberculous-spondylitis
#18
Khaled Omran, Ahmed S Abdel-Fattah, Ahmed M A Othman, Ahmed O Youssef, Amr Solimen, Mohamed A ElRefai, Ahmed N Saleh, Mohammed Ali
OBJECTIVES AND STUDY DESIGN: The aim of this study was to retrospectively evaluate 45 patients operated upon either by posterior extensive circumferential decompression (PECD) or by the lateral extracavitary (LEC) technique and compare the clinical, radiologic, laboratory, and functional outcomes. SUMMARY OF BACKGROUND: The debate continues on the best decompression-fusion technique for treating complicated spinal tuberculosis. In recent times, the advantages of combined surgery have been successfully achieved using the 1-stage salvage technique, with enough accessibility to all 3 spinal columns...
December 21, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27975166/green-and-selective-fluorescent-sensor-for-detection-of-sn-iv-and-mo-vi-based-on-boron-and-nitrogen-co-doped-carbon-dots
#19
Reza Tabaraki, Omran Abdi, Sedigheh Yousefipour
A green and simple microwave-assisted method was used to synthesis water-soluble boron and nitrogen-co-doped carbon dots (B-N-CDs). These B-N-CDs were successfully used for the fluorescent determination of Sn(4+) and Mo(6+) ions. This probe had a fast response time at pH = 4 with high sensitivity and selectivity. Linear correlation between F0/F and the concentration was seen in the range of 0.2-18 μM and 0.2-25 μM for Sn(4+) and Mo(6+), respectively. Under optimum condition, the limit of detection (LOD) for Sn(4+) and Mo(6+) were 150 nM and 132 nM, respectively...
December 14, 2016: Journal of Fluorescence
https://www.readbyqxmd.com/read/27973673/prevalence-and-causes-of-attrition-among-surgical-residents-a-systematic-review-and-meta-analysis
#20
Zeyad Khoushhal, Mohamad A Hussain, Elisa Greco, Muhammad Mamdani, Subodh Verma, Ori Rotstein, Andrea C Tricco, Mohammed Al-Omran
Importance: Attrition of residents from general surgery training programs is relatively high; however, there are wide discrepancies in the prevalence and causes of attrition reported among surgical residents in previous studies. Objective: To summarize the estimate of attrition prevalence among general surgery residents. Data Sources: We searched the Medline, EMBASE, Cochrane, PsycINFO, and ERIC databases (January 1, 1946, to October 22, 2015) for studies reporting on the prevalence and causes of attrition in surgical residents, as well as the characteristics and destinations of residents who left general surgery training programs...
December 14, 2016: JAMA Surgery
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