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https://www.readbyqxmd.com/read/29148893/reduced-intensity-delayed-intensification-in-standard-risk-pediatric-acute-lymphoblastic-leukemia-defined-by-undetectable-minimal-residual-disease-results-of-an-international-randomized-trial-aieop-bfm-all-2000
#1
Martin Schrappe, Kirsten Bleckmann, Martin Zimmermann, Andrea Biondi, Anja Möricke, Franco Locatelli, Gunnar Cario, Carmelo Rizzari, Andishe Attarbaschi, Maria Grazia Valsecchi, Claus R Bartram, Elena Barisone, Felix Niggli, Charlotte Niemeyer, Anna Maria Testi, Georg Mann, Ottavio Ziino, Beat Schäfer, Renate Panzer-Grümayer, Rita Beier, Rosanna Parasole, Gudrun Göhring, Wolf-Dieter Ludwig, Fiorina Casale, Paul-Gerhardt Schlegel, Giuseppe Basso, Valentino Conter
Purpose Delayed intensification (DI) is an integral part of treatment of childhood acute lymphoblastic leukemia (ALL), but it is associated with relevant toxicity. Therefore, standard-risk patients of trial AIEOP-BFM ALL 2000 (Combination Chemotherapy Based on Risk of Relapse in Treating Young Patients With ALL) were investigated with the specific aim to reduce treatment intensity. Patients and Methods Between July 2000 and July 2006, 1,164 patients (1 to 17 years of age) with standard-risk ALL (defined as the absence of high-risk cytogenetics and undetectable minimal residual disease on days 33 and 78) were randomly assigned to either experimental reduced-intensity DI (protocol III; P-III) or standard DI (protocol II; P-II)...
November 17, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29148158/long-term-anesthetic-protocol-in-rats-feasibility-in-electrophysiology-studies-in-visual-prosthesis
#2
Alejandro Barriga-Rivera, Veronica Tatarinoff, Nigel H Lovell, John W Morley, Gregg J Suaning
Electrical stimulation of excitable cells provides therapeutic benefits for a variety of medical conditions, including restoration of partial vision to those blinded via some types of retinal degeneration. To improve visual percepts elicited by the current technology, researchers are conducting acute electrophysiology experiments, mainly in cats. However, the rat can provide a model of a range of retinal diseases and possesses a sufficiently large eye to be used in this field. This article presents a long-term anesthetic protocol to enable electrophysiology experiments to further the development of visual prostheses...
November 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/29146875/risk-of-stroke-in-patients-with-short-run-atrial-tachyarrhythmia
#3
Shinya Yamada, Chin-Yu Lin, Shih-Lin Chang, Tze-Fan Chao, Yenn-Jiang Lin, Li-Wei Lo, Fa-Po Chung, Yu-Feng Hu, Ta-Chuan Tuan, Jo-Nan Liao, Abigail Louise D Te, Yao-Ting Chang, Ting-Yung Chang, Cheng-I Wu, Satoshi Higa, Shih-Ann Chen
BACKGROUND AND PURPOSE: The risk of stroke in patients with short-run atrial tachyarrhythmia (AT) remains unclear. This study aimed to investigate the relationship between short-run AT and the stroke and the use of the CHA2DS2-VASc score for the risk stratification. METHODS: From the registry of 24-hour Holter monitoring, 5342 subjects without known atrial fibrillation or stroke were enrolled. Short-run AT was defined as episodes of supraventricular ectopic beats <5 seconds...
November 16, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29146520/patterns-of-resistance-associated-substitutions-in-patients-with-chronic-hcv-infection-following-treatment-with-direct-acting-antivirals
#4
Julia Dietz, Simone Susser, Johannes Vermehren, Kai-Henrik Peiffer, Georgios Grammatikos, Annemarie Berger, Peter Ferenci, Maria Buti, Beat Müllhaupt, Bela Hunyady, Holger Hinrichsen, Stefan Mauss, Jörg Petersen, Peter Buggisch, Gisela Felten, Dietrich Hüppe, Gaby Knecht, Thomas Lutz, Eckart Schott, Christoph Berg, Ulrich Spengler, Thomas von Hahn, Thomas Berg, Stefan Zeuzem, Christoph Sarrazin
BACKGROUND & AIMS: Little is known about substitutions that mediate resistance of HCV to direct-acting antivirals (DAAs), due to the small number of patients with treatment failure in approval studies. It is important to identify resistance patterns to select effective salvage treatments. METHODS: We performed a comprehensive analysis for resistance-associated substitutions (RASs) in HCV genes (NS3, NS5A, NS5B) targeted by DAAs. We compared NS3, NS5A, and NS5B sequences from 626 patients in Europe with DAA failure with sequences from 2322 DAA-naïve patients, infected with HCV genotypes 1-4...
November 13, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29146275/beat-to-beat-variations-in-activation-recovery-interval-derived-from-the-right-ventricular-electrogram-can-monitor-arrhythmic-risk-under-anesthetic-and-awake-conditions-in-the-canine-chronic-atrioventricular-block-model
#5
Sofieke C Wijers, David J Sprenkeler, Alexandre Bossu, Albert Dunnink, Jet D M Beekman, Rosanne Varkevisser, Alfonso Aranda Hernández, Mathias Meine, Marc A Vos
BACKGROUND: In the chronic atrioventricular block (CAVB) dog model, beat-to-beat variation of repolarization in the left ventricle (LV) quantified as short-term variability of the left monophasic action potential duration (STVLVMAPD) increases abruptly upon challenge with a pro arrhythmic drug. This increase occurs before the first ectopic beat (EB), specifically in subjects that demonstrate subsequent repetitive Torsade de Pointes arrhythmias (TdP). OBJECTIVE: Demonstrate that STV is feasible to monitor arrhythmic risk through the use of the intracardiac electrogram (EGM) derived from the right ventricle (RV) lead from pacemakers or implantable cardioverter defibrillators (ICD)...
November 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29146205/pax3-foxo1-zooming-in-on-an-undruggable-target
#6
REVIEW
Marco Wachtel, Beat W Schäfer
Driver oncogenes are prime targets for therapy in tumors many of which, including leukemias and sarcomas, express recurrent fusion transcription factors. One specific example for such a cancer type is alveolar rhabdomyosarcoma, which is associated in the majority of cases with the fusion protein PAX3-FOXO1. Since fusion transcription factors are challenging targets for development of small molecule inhibitors, indirect inhibitory strategies for this type of oncogenes represent a more promising approach. One can envision strategies at different molecular levels including upstream modifiers and activators, epigenetic and transcriptional co-regulators, and downstream effector targets...
November 13, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29145722/outcomes-of-beating-heart-on-pump-utilizing-a-miniature-bypass-circuit-versus-off-pump-cardiac-bypass-at-a-veterans-affairs-medical-center
#7
Matthew Skancke, Kendal Endicott, Richard Amdur, Michael Greenberg, Gregory Trachiotis
BACKGROUND: Off-pump coronary artery bypass grafting (OPCAB) helps reduce systemic inflammatory changes by maintaining native pulsatile flow. This analysis evaluates the outcomes of OPCAB at a Veterans Affairs Medical Center (VAMC) and evaluates the use of beating heart on-pump (BHOP) bypass grafting as an empiric therapy for high-risk patients. METHODS: We performed a retrospective analysis of 756 patients who underwent coronary bypass grafting between 2004-2015 at a single VAMC...
November 16, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29145650/loss-of-p300-and-cbp-disrupts-histone-acetylation-at-the-mouse-sry-promoter-and-causes-xy-gonadal-sex-reversal
#8
Gwenn-Aël Carré, Pam Siggers, Marilena Xipolita, Paul Brindle, Beat Lutz, Sara Wells, Andy Greenfield
CREB-binding protein (CBP, CREBBP, KAT3A) and its closely related paralogue p300 (EP300, KAT3B), together termed p300/CBP, are histone/lysine acetyl-transferases that control gene expression by modifying chromatin-associated proteins. Here, we report roles for both of these chromatin-modifying enzymes in mouse sex determination, the process by which the embryonic gonad develops into a testis or an ovary. By targeting gene ablation to embryonic gonadal somatic cells using an inducible Cre line, we show that gonads lacking either gene exhibit major abnormalities of XY gonad development at 14...
November 14, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29145393/estimating-the-probabilities-of-rare-arrhythmic-events-in-multiscale-computational-models-of-cardiac-cells-and-tissue
#9
Mark A Walker, Viatcheslav Gurev, John J Rice, Joseph L Greenstein, Raimond L Winslow
Ectopic heartbeats can trigger reentrant arrhythmias, leading to ventricular fibrillation and sudden cardiac death. Such events have been attributed to perturbed Ca2+ handling in cardiac myocytes leading to spontaneous Ca2+ release and delayed afterdepolarizations (DADs). However, the ways in which perturbation of specific molecular mechanisms alters the probability of ectopic beats is not understood. We present a multiscale model of cardiac tissue incorporating a biophysically detailed three-dimensional model of the ventricular myocyte...
November 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29145270/study-on-the-adverse-effects-following-chemotherapy-for-breast-cancer-diagnosis-during-pregnancy-the-first-case-report-in-china
#10
Xin Ye, Qi He, Xiaoyun Zhou
RATIONALE: Treatment of breast cancer during pregnancy (BCP) remains a challenge to physicians. Surgery and chemotherapy during pregnancy are widely used for the treatment of BCP. Herein, we reported 3 Chinese patients with BCP who underwent chemotherapy during pregnancy and were followed up for adverse effects. PATIENT CONCERNS: Three female patients (case 1, case 2, and case 3) of 37-, 32-, and 28-year-old with breast masses were enrolled. Case 1 had been pregnant for over 4 months, case 2 over 7 months, and case 3 for 7 months...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144972/building-bridges-through-science
#11
Thomas Lissek, Michelle Adams, John Adelman, Ehud Ahissar, Mohammed Akaaboune, Huda Akil, Mustafa al'Absi, Fazal Arain, Juan Carlos Arango-Lasprilla, Deniz Atasoy, Jesus Avila, Ashraf Badawi, Hilmar Bading, Abdul Mannan Baig, Jimena Baleriola, Carlos Belmonte, Ilaria Bertocchi, Heinrich Betz, Colin Blakemore, Olaf Blanke, Philipp Boehm-Sturm, Tobias Bonhoeffer, Paolo Bonifazi, Nils Brose, Patrizia Campolongo, Tansu Celikel, Cathy C Chang, Ta-Yuan Chang, Ami Citri, Hollis T Cline, Jesus M Cortes, Kathleen Cullen, Kellie Dean, José M Delgado-Garcia, Mathieu Desroches, John F Disterhoft, John E Dowling, Andreas Draguhn, Sherif F El-Khamisy, Abdeljabbar El Manira, S Ather Enam, Juan M Encinas, Asier Erramuzpe, José A Esteban, Isabel Fariñas, Edmond Fischer, Izumi Fukunaga, Iñigo Gabilondo, Detlev Ganten, Albert Gidon, Juan Carlos Gomez-Esteban, Paul Greengard, Valery Grinevich, Agnés Gruart, Roger Guillemin, Ahmad R Hariri, Bassem Hassan, Michael Häusser, Yasunori Hayashi, Natasha K Hussain, Adnan Abdul Jabbar, Mohamed Jaber, Reinhardt Jahn, Essam Mohammed Janahi, Mohamed Kabbaj, Helmut Kettenmann, Merel Kindt, Shira Knafo, Georg Köhr, Shoji Komai, Harm Krugers, Bernd Kuhn, Nouria Lakhdar Ghazal, Matthew E Larkum, Mickey London, Beat Lutz, Carlos Matute, Luis Martinez-Millan, Mouna Maroun, James McGaugh, Ahmed A Moustafa, Anwar Nasim, Klaus-Armin Nave, Erwin Neher, Karoly Nikolich, Tiago Outeiro, Lucy M Palmer, Olga Penagarikano, Isabel Perez-Otano, Donald W Pfaff, Bruno Poucet, Atta-Ur Rahman, Pedro Ramos-Cabrer, Ali Rashidy-Pour, Richard J Roberts, Serafim Rodrigues, Joshua R Sanes, Andreas T Schaefer, Menahem Segal, Idan Segev, Saad Shafqat, Nikhat Ahmed Siddiqui, Hermona Soreq, Eduardo Soriano-García, Rainer Spanagel, Rolf Sprengel, Greg Stuart, Thomas C Südhof, Jan Tønnesen, Mario Treviño, Basim M Uthman, J Craig Venter, Alexei Verkhratsky, Craig Weiss, Torsten N Wiesel, Emre Yaksi, Ofer Yizhar, Larry J Young, Paul Young, Nasser H Zawia, José L Zugaza, Mazahir T Hasan
Science is ideally suited to connect people from different cultures and thereby foster mutual understanding. To promote international life science collaboration, we have launched "The Science Bridge" initiative. Our current project focuses on partnership between Western and Middle Eastern neuroscience communities.
November 15, 2017: Neuron
https://www.readbyqxmd.com/read/29144123/the-sign-of-nmr-chemical-shift-difference-as-a-determinant-of-the-origin-of-binding-selectivity-elucidation-of-the-position-dependence-of-phosphorylation-in-ligands-binding-to-scribble-pdz1
#12
Gustav Sundell, Beat Vögeli, Ylva Ivarsson, Celestine Chi
The use of NMR chemical shift perturbation to monitor changes taking place around the binding site of a ligand-protein interaction is a routine and widely applied methodology in the field of protein biochemistry. Shifts are often acquired by titrating various concentrations of ligand to a fixed concentration of the receptor and may serve the purposes, amongst others, to determine affinity constants, locate binding surfaces, or differentiate between binding mechanisms. Shifts are quantified by the so-called combined chemical shift difference...
November 16, 2017: Biochemistry
https://www.readbyqxmd.com/read/29144076/the-let-s-beat-the-bug-campaign-a-statewide-active-public-education-against-bed-bugs-in-minnesota
#13
Amelia K Shindelar
Bed bugs continue to affect society and place a burden on public health systems. Experiences of the Let’s Beat the Bug! campaign are presented to help information networks prepare personnel to effectively address questions about this pest. Following recommendations from the Minnesota state bed bug working group, an information line was established and the Web site (www.bedbugs.umn.edu) was revised. Data from both services were analyzed by geographic region and type of information requested. InformationLine primarily assisted people who had issues dealing with failed treatments and landlord reluctance to take effective measures against this pest...
March 2017: Journal of Environmental Health
https://www.readbyqxmd.com/read/29143123/recovery-of-the-cardiac-autonomic-nervous-and-vascular-system-after-maximal-cardiopulmonary-exercise-testing-in-recreational-athletes
#14
Heidi Weberruss, Johannes Maucher, Renate Oberhoffer, Jan Müller
OBJECTIVE: The body's adaptation to physical exercise is modulated by sympathetic and parasympathetic (vagal) branches of the autonomic nervous system (ANS). Heart rate variability (HRV), the beat-to-beat variation of the heart, is a proxy measure for ANS activity, whereas blood pressure (BP) is an indicator for cardiovascular function. Impaired vagal activity and lower BP is already described after exercise. However, inconsistent results exist about how long vagal recovery takes and how long post-exercise hypotension persists...
November 15, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29142825/creating-metabolic-demand-as-an-engineering-strategy-in-pseudomonas-putida-rhamnolipid-synthesis-as-an-example
#15
Till Tiso, Petra Sabelhaus, Beate Behrens, Andreas Wittgens, Frank Rosenau, Heiko Hayen, Lars Mathias Blank
Metabolic engineering of microbial cell factories for the production of heterologous secondary metabolites implicitly relies on the intensification of intracellular flux directed toward the product of choice. Apart from reactions following peripheral pathways, enzymes of the central carbon metabolism are usually targeted for the enhancement of precursor supply. In Pseudomonas putida, a Gram-negative soil bacterium, central carbon metabolism, i.e., the reactions required for the synthesis of all 12 biomass precursors, was shown to be regulated at the metabolic level and not at the transcriptional level...
December 2016: Metabolic Engineering Communications
https://www.readbyqxmd.com/read/29142569/prevalence-and-predictors-of-non-suicidal-self-injury-among-children-with-autism-spectrum-disorder
#16
Bushra Akram, Mehak Batool, Zeeshan Rafi, Abrar Akram
Objectives: To find the prevalence as well as to identify the predictors as protective and risk factors of Non-Suicidal Self-Injury (NSSI) among children with autism spectrum disorder (ASD). Methods: In this analytical cross sectional survey 83 children with ASD age range from 8 to 18 years were selected through convenient sampling technique from five special schools of Lahore city. The Urdu form of a standardized tool was used to assess NSSI. Results: Statistical analysis indicated overall point prevalence of NSSI was 33%...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29142324/an-algorithm-for-the-beat-to-beat-assessment-of-cardiac-mechanics-during-sleep-on-earth-and-in-microgravity-from-the-seismocardiogram
#17
Marco Di Rienzo, Emanuele Vaini, Prospero Lombardi
Seismocardiogram, SCG, is the measure of precordial vibrations produced by the beating heart, from which cardiac mechanics may be explored on a beat-to-beat basis. We recently collected a large amount of SCG data (>69 recording hours) from an astronaut to investigate cardiac mechanics during sleep aboard the International Space Station and on Earth. SCG sleep recordings are characterized by a prolonged duration and wide heart rate swings, thus a specific algorithm was developed for their analysis. In this article we describe the new algorithm and its performance...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29142088/muscle-glycogen-synthesis-and-breakdown-are-both-impaired-in-glycogenin-1-deficiency
#18
Mads Godtfeldt Stemmerik, Karen Lindhardt Madsen, Pascal Laforêt, Astrid Emilie Buch, John Vissing
OBJECTIVE: To study fat and carbohydrate metabolism during exercise in patients with glycogenin-1 (GYG1) deficiency, and to study whether IV glucose supplementation can alleviate exercise intolerance in these patients. METHODS: This is a case-control study with 4 patients with GYG1 deficiency and 4 healthy controls. Patients performed 1 hour of cycling at 50% of their maximal workload capacity, while controls cycled at the same absolute workloads as patients. Heart rate was measured continuously, and production and utilization of fat and glucose was assessed by stable isotope technique...
November 15, 2017: Neurology
https://www.readbyqxmd.com/read/29141592/case-report-electrical-storm-during-induced-hypothermia-in-a-patient-with-early-repolarization
#19
Patrick Badertscher, Michael Kuehne, Beat Schaer, Christian Sticherling, Stefan Osswald, Tobias Reichlin
BACKGROUND: Population based studies showed an association of early repolarization in the electrocardiogram (ECG) and a higher rate of sudden cardiac death presumably due to ventricular fibrillation. The triggers for ventricular fibrillation in patients with early repolarization are not fully understood. CASE PRESENTATION: We describe the case of a young patient with a survived ventricular fibrillation arrest while asleep followed by multiple episodes of recurrent ventricular fibrillation...
November 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29141501/transient-hypertension-after-spinal-cord-injury-leads-to-cerebrovascular-endothelial-dysfunction-and-fibrosis
#20
Aaron A Phillips, Nusrat Matin, Mengyao Jia, Jordan W Squair, Aaron Monga, Mei Mu Zi Zheng, Rahul Sachdeva, Andrew Yung, Shea Hocolaski, Stacy L Elliott, Piotr Kozlowski, Anne Dorrance, Ismail Laher, Phil Ainslie, Andrei V Krassioukov
We aimed to create a clinically-relevant preclinical model of transient hypertension, and then evaluate the pathophysiological cerebrovascular processes resulting from this novel stimulus, which has recently been epidemiologically linked to cerebrovascular disease. We first developed a clinically-relevant model of transient hypertension, secondary to induced autonomic dysreflexia after spinal cord injury, and demonstrated that in both patients and rats this stimulus leads to drastic acute cerebral hyper-perfusion...
November 15, 2017: Journal of Neurotrauma
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