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Alon, Uri

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https://www.readbyqxmd.com/read/29143892/update-in-the-therapy-of-advanced-neuroendocrine-tumors
#1
REVIEW
Inbal Uri, Shani Avniel-Polak, David J Gross, Simona Grozinsky-Glasberg
Neuroendocrine tumors (NETs) are rare neoplasms, with an estimated annual incidence of ~ 6.9/100,000. NETs arise throughout the body from cells of the diffuse endocrine system. More than half originate from endocrine cells of the gastrointestinal tract and the pancreas, thus being referred to as gastroenteropancreatic NETs (GEP-NETs). The only treatment that offers a cure is surgery; however, most patients are diagnosed with metastatic disease, and curative surgery is usually not an option. These patients can be offered long-term systemic treatment, for both symptomatic relief and tumor growth suppression...
November 16, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/29124851/lower-risk-of-pelvic-metalware-infection-with-operative-repair-of-concurrent-bladder-rupture
#2
Henry H-I Yao, Max Esser, Jeremy Grummet, Chris Atkins, Peter Royce, Uri Hanegbi
BACKGROUND: Patients with traumatic bladder rupture frequently have associated pelvic fracture. With increasing numbers of pelvic fractures fixed internally, there are concerns that conservative management of bladder rupture may increase the risk of pelvic metalware infection. This study aims to determine if operative repair of bladder rupture in comparison to conservative management with catheter drainage alone is associated with a lower rate of infection of internal fixation device for concurrent pelvic fracture...
November 9, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29114088/unruptured-brain-arteriovenous-malformations-primary-onyx-embolization-in-aruba-a-randomized-trial-of-unruptured-brain-arteriovenous-malformations-eligible-patients
#3
Uri Singfer, Dimitri Hemelsoet, Peter Vanlangenhove, Frederic Martens, Luc Verbeke, Dirk Van Roost, Luc Defreyne
BACKGROUND AND PURPOSE: In light of evidence from ARUBA (A Randomized Trial of Unruptured Brain Arteriovenous Malformations), neurovascular specialists had to reconsider deliberate treatment of unruptured brain arteriovenous malformations (uBAVMs). Our objective was to determine the outcomes of uBAVM treated with primary embolization using ethylene vinyl alcohol (ONYX). METHODS: Patients with uBAVM who met the inclusion criteria of ARUBA and were treated with primary Onyx embolization were assigned to this retrospective study...
November 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29114028/dynamic-proteomics-of-herpes-simplex-virus-infection
#4
Nir Drayman, Omer Karin, Avi Mayo, Tamar Danon, Lev Shapira, Dor Rafael, Anat Zimmer, Anat Bren, Oren Kobiler, Uri Alon
The cellular response to viral infection is usually studied at the level of cell populations. Currently, it remains an open question whether and to what extent cell-to-cell variability impacts the course of infection. Here we address this by dynamic proteomics-imaging and tracking 400 yellow fluorescent protein (YFP)-tagged host proteins in individual cells infected by herpes simplex virus 1. By quantifying time-lapse fluorescence imaging, we analyze how cell-to-cell variability impacts gene expression from the viral genome...
November 7, 2017: MBio
https://www.readbyqxmd.com/read/29073201/prediction-of-drug-cocktail-effects-when-the-number-of-measurements-is-limited
#5
Anat Zimmer, Avichai Tendler, Itay Katzir, Avi Mayo, Uri Alon
Cocktails of drugs can be more effective than single drugs, because they can potentially work at lower doses and avoid resistance. However, it is impossible to test all drug cocktails drawn from a large set of drugs because of the huge number of combinations. To overcome this combinatorial explosion problem, one can sample a relatively small number of combinations and use a model to predict the rest. Recently, Zimmer and Katzir et al. presented a model that accurately predicted the effects of cocktails at all doses based on measuring pairs of drugs...
October 2017: PLoS Biology
https://www.readbyqxmd.com/read/29055458/the-walking-speed-reserve-in-low-disabled-people-with-multiple-sclerosis-does-it-provide-greater-insight-in-detecting-mobility-deficits-and-risk-of-falling-than-preferred-and-fast-walking-speeds
#6
Alon Kalron, Shay Menascu, Mark Dolev, Uri Givon
The extent of an increase from a preferred walking speed (PWS) to a fast walking speed (FWS) is defined as the walking speed reserve (WSR). The WSR is unique as it reflects an individual's ability to increase their walking speed on demand. The primary objective of this study was to examine whether the WSR was more advantageous than the PWS and FWS in terms of reflecting mobility deficits and risk of falling associated with multiple sclerosis (MS). The patient group included 235 people with MS (PwMS) (139 women) with a mean age of 43...
October 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28966122/an-endogenously-tagged-fluorescent-fusion-protein-library-in-mouse-embryonic-stem-cells
#7
Arigela Harikumar, Raghu Ram Edupuganti, Matan Sorek, Gajendra Kumar Azad, Styliani Markoulaki, Petra Sehnalová, Soňa Legartová, Eva Bártová, Shlomit Farkash-Amar, Rudolf Jaenisch, Uri Alon, Eran Meshorer
Embryonic stem cells (ESCs), with their dual capacity to self-renew and differentiate, are commonly used to study differentiation, epigenetic regulation, lineage choices, and more. Using non-directed retroviral integration of a YFP/Cherry exon into mouse ESCs, we generated a library of over 200 endogenously tagged fluorescent fusion proteins and present several proof-of-concept applications of this library. We show the utility of this library to track proteins in living cells; screen for pluripotency-related factors; identify heterogeneously expressing proteins; measure the dynamics of endogenously labeled proteins; track proteins recruited to sites of DNA damage; pull down tagged fluorescent fusion proteins using anti-Cherry antibodies; and test for interaction partners...
October 10, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28957844/human-metapneumovirus-infection-pneumonia-risk-factors-in-solid-organ-transplantation-patients-and-ct-findings
#8
Hyun Jung Koo, Han Na Lee, Sang Ho Choi, Heungsup Sung, Sang Young Oh, So Youn Shin, Hwa Jung Kim, Kyung-Hyun Do
BACKGROUND: Human metapneumovirus (HMPV) is a newly detected pathogen which can cause lower respiratory tract disease. Clinical characteristics, computed tomography (CT) findings, and outcomes of HMPV pneumonia in solid organ transplantation (SOT) patients have not been well demonstrated. METHODS: Between January 2010 and February 2016, clinical and imaging findings of 59 patients receiving SOT (types of organ: 37 kidney, 16 liver, 4 heart and 2 pancreas and kidney) who had HMPV infection detected in nasopharyngeal or bronchoalveolar lavage by reverse transcription polymerase chain reaction were retrospectively evaluated...
September 27, 2017: Transplantation
https://www.readbyqxmd.com/read/28953003/vitamin-b12-deficiency-in-inflammatory-bowel-disease-a-prospective-observational-pilot-study
#9
Robert Battat, Uri Kopylov, Joshua Byer, Maida J Sewitch, Elham Rahme, Hacene Nedjar, Elana Zelikovic, Serge Dionne, Talat Bessissow, Waqqas Afif, Paula J Waters, Ernest Seidman, Alain Bitton
BACKGROUND AND AIM: Diagnostic and management guidelines for vitamin B12 (cobalamin, Cbl) deficiency in inflammatory bowel disease (IBD) are lacking. True deficiency is defined as Cbl concentrations below reference range combined with elevated methylmalonic acid (MMA) concentrations. Studies analyzing Cbl status in IBD use only Cbl concentrations without confirmatory MMA. This study aims to determine the proportion of IBD patients with Cbl concentrations below reference range and their predisposing clinical and genetic characteristics...
September 25, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28892513/placebo-can-enhance-creativity
#10
Liron Rozenkrantz, Avraham E Mayo, Tomer Ilan, Yuval Hart, Lior Noy, Uri Alon
BACKGROUND: The placebo effect is usually studied in clinical settings for decreasing negative symptoms such as pain, depression and anxiety. There is interest in exploring the placebo effect also outside the clinic, for enhancing positive aspects of performance or cognition. Several studies indicate that placebo can enhance cognitive abilities including memory, implicit learning and general knowledge. Here, we ask whether placebo can enhance creativity, an important aspect of human cognition...
2017: PloS One
https://www.readbyqxmd.com/read/28879535/hypercalcemia-a-consultant-s-approach
#11
Ari Auron, Uri S Alon
Due to their daily involvement in mineral metabolism, nephrologists are often asked to consult on children with hypercalcemia. This might become even more pertinent when the hypercalcemia is associated with acute kidney injury and/or hypercalciuria and renal calcifications. The best way to assess the severity of hypercalcemia is by measurement of plasma ionized calcium, and if not available by adjusting serum total calcium to albumin concentration. The differential diagnosis of the possible etiologies of the disturbance in the mineral homeostasis starts with the assessment of serum parathyroid hormone concentration, followed by that of vitamin D metabolites in search of both genetic and acquired etiologies...
September 6, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28877882/mechanotransduction-signaling-in-podocytes-from-fluid-flow-shear-stress
#12
Tarak Srivastava, Hongying Dai, Daniel P Heruth, Uri S Alon, Robert E Garola, Jianping Zhou, R Scott Duncan, Ashraf El-Meanawy, Ellen T McCarthy, Ram Sharma, Mark L Johnson, Virginia J Savin, Mukut Sharma
Recently we and others have found that hyperfiltration-associated increase in biomechanical forces, namely tensile stress and fluid flow shear stress (FFSS) can directly and distinctly alter podocyte structure and function. The ultrafiltrate flow over the major processes and cell body generates FFSS to podocyte. Our previous work suggests that COX2-PGE2-EP2 axis plays an important role in mechanoperception of FFSS in podocyte (Srivastava et al. Am J Physiol Renal Physiol 307: F1323-F1333, 2014). To address mechanotransduction of the perceived mechanical stimulus through EP2 receptor, cultured podocytes were exposed to FFSS (2 dynes/cm2) for 2hrs...
September 6, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28769825/a-pilot-study-of-possible-easy-to-use-electrophysiological-index-for-early-detection-of-antidepressive-treatment-non-response
#13
Goded Shahaf, Shahak Yariv, Boaz Bloch, Uri Nitzan, Aviv Segev, Alon Reshef, Yuval Bloch
INTRODUCTION: The evaluation of response to pharmacological treatment in MDD requires 4-8 weeks. Therefore, the ability to predict response, and especially lack of response to treatment, as early as possible after treatment onset or change, is of prime significance. Many studies have demonstrated significant results regarding the ability to use EEG and ERP markers, including attention-associated markers such as P300, for early prediction of response to treatment. But these markers are derived from long EEG/ERP samples, often from multiple channels, which render them impractical for frequent sampling...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28767668/creative-foraging-an-experimental-paradigm-for-studying-exploration-and-discovery
#14
Yuval Hart, Avraham E Mayo, Ruth Mayo, Liron Rozenkrantz, Avichai Tendler, Uri Alon, Lior Noy
Creative exploration is central to science, art and cognitive development. However, research on creative exploration is limited by a lack of high-resolution automated paradigms. To address this, we present such an automated paradigm, the creative foraging game, in which people search for novel and valuable solutions in a large and well-defined space made of all possible shapes made of ten connected squares. Players discovered shape categories such as digits, letters, and airplanes as well as more abstract categories...
2017: PloS One
https://www.readbyqxmd.com/read/28700387/treatment-of-recurrent-lumbar-disc-herniation-with-or-without-fusion-in-workers-compensation-subjects
#15
Jeffrey A O'Donnell, Joshua T Anderson, Arnold R Haas, Rick Percy, Stephen T Woods, Uri M Ahn, Nicholas U Ahn
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To determine outcomes after reoperation discectomy with or without fusion surgery for recurrent lumbar disc herniation (RLDH) in the workers' compensation (WC) population. SUMMARY OF BACKGROUND DATA: RLDH is estimated to occur in 7% to 24% of patients after discectomy. There are two main surgical options after reherniation: a revision discectomy (RD), or an RD combined with fusion (RDF)...
July 15, 2017: Spine
https://www.readbyqxmd.com/read/28685172/erratum-to-phosphate-homeostasis-and-its-role-in-bone-health
#16
Maria Goretti Pinedo, Uri S Alon
No abstract text is available yet for this article.
July 6, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28672730/analytical-and-clinical-performance-of-thyroglobulin-autoantibody-assays-in-thyroid-cancer-follow-up
#17
Waddah Katrangi, Stephan K G Grebe, Alicia Algeciras-Schimnich
BACKGROUND: While thyroglobulin autoantibodies (TgAb) can result in false low serum thyroglobulin (Tg) immunoassay (IA) measurements, they might also be indicators of disease persistence/recurrence. Hence, accurate TgAb measurement, in addition to Tg quantification, is crucial for thyroid cancer monitoring. We compared the analytical and clinical performance of four commonly used TgAb IAs. METHODS: We measured Tg by mass spectrometry (Tg-MS) and by four pairs of Tg and TgAb IAs (Beckman, Roche, Siemens, Thermo) in 576 samples...
October 26, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28652282/biphasic-response-as-a-mechanism-against-mutant-takeover-in-tissue-homeostasis-circuits
#18
Omer Karin, Uri Alon
Tissues use feedback circuits in which cells send signals to each other to control their growth and survival. We show that such feedback circuits are inherently unstable to mutants that misread the signal level: Mutants have a growth advantage to take over the tissue, and cannot be eliminated by known cell-intrinsic mechanisms. To resolve this, we propose that tissues have biphasic responses in and the signal is toxic at both high and low levels, such as glucotoxicity of beta cells, excitotoxicity in neurons, and toxicity of growth factors to T cells...
June 26, 2017: Molecular Systems Biology
https://www.readbyqxmd.com/read/28590343/impact-of-infliximab-and-cyclosporine-on-the-risk-of-colectomy-in-hospitalized-patients-with-ulcerative-colitis-complicated-by-cytomegalovirus-a-multicenter-retrospective-study
#19
Uri Kopylov, Konstantinos Papamichael, Konstantinos Katsanos, Matti Waterman, Ariella Bar-Gil Shitrit, Trine Boysen, Francisco Portela, Armando Peixoto, Andrew Szilagyi, Marco Silva, Giovanni Maconi, Ofir Har-Noy, Peter Bossuyt, Gerassimos Mantzaris, Manuel Barreiro de Acosta, Maria Chaparro, Dimitrios K Christodoulou, Rami Eliakim, Jean-Francois Rahier, Fernando Magro, David Drobne, Marc Ferrante, Elena Sonnenberg, Britte Siegmund, Vinciane Muls, Tamara Thurm, Henit Yanai, Iris Dotan, Tim Raine, Avi Levin, Eran Israeli, Fahd Ghalim, Franck Carbonnel, Severine Vermeire, Shomron Ben-Horin, Xavier Roblin
BACKGROUND: Cytomegalovirus (CMV) is frequently detected in patients with ulcerative colitis (UC). The impact of CMV infection on the outcome of UC exacerbation remains unclear. The benefit of combining antiviral with anti-inflammatory treatment has not been evaluated yet. The aim of this study was to compare the outcome of CMV-positive hospitalized patients with UC treated with antiviral therapy either alone or combined with salvage anti-inflammatory therapy (infliximab [IFX] or cyclosporine A [CsA])...
September 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28516132/life-threatening-hypercalcemia-during-prodrome-of-pneumocystis-jiroveci-pneumonia-in-an-immunocompetent-infant
#20
Judith Sebestyen VanSickle, Tarak Srivastava, Uri S Alon
Severe hypercalcemia in infants is usually attributed to genetic etiologies and less commonly to acquired ones. An 8-week-old girl presented with failure to thrive, mild respiratory distress, and life-threatening hypercalcemia (23.5 mg/dL). Serum 1,25(OH)2-vitamin D (1,25(OH)2-D) level was elevated and parathyroid hormone undetectable. Evaluation for genetic mutations and malignant etiologies of hypercalcemia was negative. Treatment with intravenous hydration, loop diuretic, and calcitonin failed to correct the hypercalcemia, which was subsequently controlled with bisphosphonate therapy...
2017: Global Pediatric Health
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