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Alon, Uri

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https://www.readbyqxmd.com/read/29350300/the-relationship-between-gait-variability-and-cognitive-functions-differs-between-fallers-and-non-fallers-in-ms
#1
Alon Kalron, Roy Aloni, Mark Dolev, Lior Frid, Uri Givon, Shay Menascu
The objective of the study was to determine if cognitive function is associated with step time variability in people with multiple sclerosis (PwMS). The study included 355 PwMS (218 women), average age 41.1 (SD = 13.5), disease duration 5.9 (SD = 7.3) years, and a median expanded disability status scale score of 2.5. We separately analyzed the sample group of fallers and non-fallers based on their fall history. Gait variability was measured by an electronic walkway and all participants completed a computerized cognitive test battery designed to evaluate multiple cognitive domains...
January 19, 2018: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29299824/the-value-of-synchro-cystourethrometry-for-evaluating-the-relationship-between-urethral-instability-and-overactive-bladder
#2
Chaoyang Hua, Yibo Wen, Yan Zhang, Quande Feng, Xiangfei He, Yunlong Li, Junwei Wu, Jinjin Feng, Stuart B Bauer, Jianguo Wen
PURPOSE: To investigate the correlation between urethral instability (URI) and overactive bladder (OAB) in children. METHODS: We retrospectively investigated 126 children with OAB and 36 children without OAB using synchro-cystourethrometry. The prevalence of detrusor overactivity (DO) and URI, and the diagnostic sensitivity of DO alone and DO combined with URI, was compared. The OAB children with URI voluntarily received transcutaneous electrical pudendal nerve stimulation with anisodamine (stimulation group, SG) or anisodamine alone (non-stimulation group, NSG)...
January 3, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29260225/effect-of-tumor-treating-fields-plus-maintenance-temozolomide-vs-maintenance-temozolomide-alone-on-survival-in-patients-with-glioblastoma-a-randomized-clinical-trial
#3
RANDOMIZED CONTROLLED TRIAL
Roger Stupp, Sophie Taillibert, Andrew Kanner, William Read, David M Steinberg, Benoit Lhermitte, Steven Toms, Ahmed Idbaih, Manmeet S Ahluwalia, Karen Fink, Francesco Di Meco, Frank Lieberman, Jay-Jiguang Zhu, Giuseppe Stragliotto, David D Tran, Steven Brem, Andreas F Hottinger, Eilon D Kirson, Gitit Lavy-Shahaf, Uri Weinberg, Chae-Yong Kim, Sun-Ha Paek, Garth Nicholas, Jordi Burna, Hal Hirte, Michael Weller, Yoram Palti, Monika E Hegi, Zvi Ram
Importance: Tumor-treating fields (TTFields) is an antimitotic treatment modality that interferes with glioblastoma cell division and organelle assembly by delivering low-intensity alternating electric fields to the tumor. Objective: To investigate whether TTFields improves progression-free and overall survival of patients with glioblastoma, a fatal disease that commonly recurs at the initial tumor site or in the central nervous system. Design, Setting, and Participants: In this randomized, open-label trial, 695 patients with glioblastoma whose tumor was resected or biopsied and had completed concomitant radiochemotherapy (median time from diagnosis to randomization, 3...
December 19, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29240758/increased-gamma-band-activity-for-lateral-interactions-in-humans
#4
Alon Shapira, Anna Sterkin, Moshe Fried, Oren Yehezkel, Zeev Zalevsky, Uri Polat
Collinear facilitation of contrast sensitivity supported by lateral interactions within primary visual cortex is implicated in contour and object perception, with neural correlates in several frequency bands. Although higher component of the ERP power spectrum, the gamma-band, is postulated to reflect object representation, attention and memory, its neuronal source has been questioned, suggesting it is an artifact reflecting saccadic eye movements. Here we explored the gamma-band activity during collinear facilitation with no saccade-related confounds...
2017: PloS One
https://www.readbyqxmd.com/read/29235734/comparison-of-the-long-term-oncological-outcomes-of-stent-as-a-bridge-to-surgery-and-surgery-alone-in-malignant-colonic-obstruction
#5
Udit Gibor, Zvi Perry, Dan Tirosh, Uri Netz, Alex Rosental, Alex Fich, Sofie Man, Samuel Ariad, Boris Kirshtein
BACKGROUND: Self-expanding metallic stents (SEMS) insertion is an alternative to emergency surgery in malignant colonic obstruction. However, the long-term oncological outcome of stents as a bridge to surgery is limited and controversial. OBJECTIVES: To determine the long-term oncological outcome of stents as a bridge to surgery. METHODS: Data of patients who underwent emergency surgery and endoscopic stent insertion as a bridge to surgery due to obstructing colon cancer at Soroka Medical Center during a 14 year period were collected retrospectively...
December 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29192005/successful-reversal-of-furosemide-induced-secondary-hyperparathyroidism-with-cinacalcet
#6
Tarak Srivastava, Shahryar Jafri, William E Truog, Judith Sebestyen VanSickle, Winston M Manimtim, Uri S Alon
Secondary hyperparathyroidism (SHPT) is a rare complication of furosemide therapy that can occur in patients treated with the loop diuretic for a long period of time. We report a 6-month-old 28-weeks premature infant treated chronically with furosemide for his bronchopulmonary dysplasia, who developed hypocalcemia and severe SHPT, adversely affecting his bones. Discontinuation of the loop diuretic and the addition of supplemental calcium and calcitriol only partially reversed the SHPT, bringing serum parathyroid hormone level down from 553 to 238 pg/mL...
December 2017: Pediatrics
https://www.readbyqxmd.com/read/29167457/the-genetic-basis-for-the-adaptation-of-e-coli-to-sugar-synthesis-from-co2
#7
Elad Herz, Niv Antonovsky, Yinon Bar-On, Dan Davidi, Shmuel Gleizer, Noam Prywes, Lianet Noda-Garcia, Keren Lyn Frisch, Yehudit Zohar, David G Wernick, Alon Savidor, Uri Barenholz, Ron Milo
Understanding the evolution of a new metabolic capability in full mechanistic detail is challenging, as causative mutations may be masked by non-essential "hitchhiking" mutations accumulated during the evolutionary trajectory. We have previously used adaptive laboratory evolution of a rationally engineered ancestor to generate an Escherichia coli strain able to utilize CO2 fixation for sugar synthesis. Here, we reveal the genetic basis underlying this metabolic transition. Five mutations are sufficient to enable robust growth when a non-native Calvin-Benson-Bassham cycle provides all the sugar-derived metabolic building blocks...
November 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/29143892/update-in-the-therapy-of-advanced-neuroendocrine-tumors
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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