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https://www.readbyqxmd.com/read/28102468/mutation-of-the-herc-1-ubiquitin-ligase-impairs-associative-learning-in-the-lateral-amygdala
#1
Eva Mª Pérez-Villegas, José V Negrete-Díaz, Mª Elena Porras-García, Rocío Ruiz, Angel M Carrión, Antonio Rodríguez-Moreno, José A Armengol
Tambaleante (tbl/tbl) is a mutant mouse that carries a spontaneous Gly483Glu substitution in the HERC1 (HECT domain and RCC1 domain) E3 ubiquitin ligase protein (HERC1). The tbl/tbl mutant suffers an ataxic syndrome given the almost complete loss of cerebellar Purkinje cells during adult life. More recent analyses have identified alterations at neuromuscular junctions in these mice, as well as in other neurons of the central nervous system, such as motor neurons in the spinal cord, or pyramidal neurons in the hippocampal CA3 region and the neocortex...
January 19, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28096746/from-english-to-chinese-japanese-and-russian-extending-research-visibility-with-language-translations-of-a-conference-slide-presentation
#2
Lilian Hoffecker, Dana Abbey
OBJECTIVE: The research demonstrates that a conference slide presentation translated into non-English languages reaches significantly larger and different audiences than an English presentation alone. METHODS: The slides of a presentation from the Medical Library Association annual meeting were translated from English to Chinese, Japanese, and Russian and posted along with the English version to SlideShare, an open slide-hosting website. View counts, traffic sources, and geographic origins of the traffic for each language version were tracked over a twenty-two-month period...
January 2017: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/28094948/liquid-cell-electron-microscopy-of-nanoparticle-self-assembly-driven-by-solvent-drying
#3
Won Chul Lee, Byung Hyo Kim, Sun Choi, Shoji Takeuchi, Jungwon Park
Drying a colloidal solution of nanoparticles is a versatile method to construct self-assembled structures of nanoparticles. However, mechanistic understanding has mostly relied onto empirical knowledge obtained from the final structures of self-assembly as relevant processes during solvent drying are likely kinetic and far from equilibrium. Here, we present in situ TEM studies of nanoparticle self-assembly under various conditions, including the concentrations of the initial solution and the types of nanoparticles and substrates...
January 17, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28089528/hydrogel-spacer-distribution-within-the-perirectal-space-in-patients-undergoing-radiotherapy-for-prostate-cancer-impact-of-spacer-symmetry-on-rectal-dose-reduction-and-the-clinical-consequences-of-hydrogel-infiltration-into-the-rectal-wall
#4
Benjamin W Fischer-Valuck, Anupama Chundury, Hiram Gay, Walter Bosch, Jeff Michalski
PURPOSE: Hydrogel prostate-rectum spacers, biomaterials placed between the prostate and rectum, continue to gain interest as a method to reduce or limit rectal dose during dose escalated prostate cancer radiation therapy. Because the spacer is initially injected into the perirectal space as a liquid, the final distribution can vary. The purpose of this study was to evaluate hydrogel spacer (SpaceOAR system) implantation and distribution from a recent prospective randomized control trial and correlate spacer symmetry with rectal dose reduction as well as rectal wall infiltration (RWI) to acute and late toxicity...
October 17, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28089081/asthma-chronic-obstructive-pulmonary-disease-overlap-syndrome-literature-review-and-contributions-towards-a-portuguese-consensus
#5
D Araújo, E Padrão, M Morais-Almeida, J Cardoso, F Pavão, R B Leite, A C Caldas, A Marques
INTRODUCTION: Phenotypic overlap between the two main chronic airway pulmonary diseases, asthma and chronic obstructive pulmonary disease (COPD), has been the subject of debate for decades, and recently the nomenclature of asthma-COPD overlap syndrome (ACOS) was adopted for this condition. The definition of this entity in the literature is, however, very heterogeneous, it is therefore important to define how it applies to Portugal. METHODS: A literature review of ACOS was made in a first phase resulting in the drawing up of a document that was later submitted for discussion among a panel of chronic lung diseases experts, resulting in reflexions about diagnosis, treatment and clinical guidance for ACOS patients...
January 6, 2017: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/28079298/from-phosphoproteins-to-phosphoproteomes-a-historical-account
#6
REVIEW
Andrea Venerando, Luca Cesaro, Lorenzo A Pinna
The first phosphoprotein (casein) was discovered in 1883, yet the enzyme responsible for its phosphorylation was identified only 130 years later, in 2012. During the very long time elapsed between these two events, with special reference to the last decades of the 1900s, it became evident that, far from being an oddity, phosphorylation affects the majority of eukaryotic proteins during their lifespan, and that this reaction is catalysed by the members of a large family of protein kinases, susceptible to a variety of stimuli controlling nearly every aspects of life and death...
January 12, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28079222/infrared-characterisation-of-acetonitrile-and-propionitrile-aerosols-under-titan-s-atmospheric-conditions
#7
C Ennis, R Auchettl, M Ruzi, E G Robertson
Pure, crystalline acetonitrile (CH3CN) and propionitrile (CH3CH2CN) particles were formed in a collisional cooling cell allowing for infrared (IR) signatures to be compiled from 50 to 5000 cm(-1). The cell temperature and pressure conditions were controlled to simulate Titan's lower atmosphere (80-130 K and 1-100 mbar), allowing for the comparison of laboratory data to the spectra obtained from the Cassini-Huygens mission. The far-IR features confirmed the morphology of CH3CN aerosols as the metastable β-phase (monoclinic) ice, however, a specific crystalline phase for CH3CH2CN could not be verified...
January 12, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28078133/successful-hepatectomy-for-metastatic-squamous-cell-carcinoma-of-the-anal-canal-a-case-report
#8
Tercia Tarciane Sousa, Bruna do Nascimento Santos, Marcos Belotto, Renata D'Alpino Peixoto
Despite rare, metastatic anal carcinoma confers a poor prognosis. Systemic chemotherapy is the mainstay of treatment for advanced disease while the role of biologics and/or surgical resection of metastatic disease are anecdotal. Compared to isolated liver colorectal or neuroendocrine cancer liver metastases, there is far less experience with resection or nonsurgical local ablative procedures for patients with metastatic anal carcinoma to the liver. We report the case of a 67-year-old woman with metastatic anal carcinoma to the liver who was successfully treated with liver resection and remains free of relapse more than one year later...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28077174/mutant-hspb1-causes-loss-of-translational-repression-by-binding-to-pcbp1-an-rna-binding-protein-with-a-possible-role-in-neurodegenerative-disease
#9
Thomas Geuens, Vicky De Winter, Nicholas Rajan, Tilmann Achsel, Ligia Mateiu, Leonardo Almeida-Souza, Bob Asselbergh, Delphine Bouhy, Michaela Auer-Grumbach, Claudia Bagni, Vincent Timmerman
The small heat shock protein HSPB1 (Hsp27) is an ubiquitously expressed molecular chaperone able to regulate various cellular functions like actin dynamics, oxidative stress regulation and anti-apoptosis. So far disease causing mutations in HSPB1 have been associated with neurodegenerative diseases such as distal hereditary motor neuropathy, Charcot-Marie-Tooth disease and amyotrophic lateral sclerosis. Most mutations in HSPB1 target its highly conserved α-crystallin domain, while other mutations affect the C- or N-terminal regions or its promotor...
January 11, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28075623/identifying-hidden-zones-of-the-far-posterior-cartilage-of-the-femoral-condyles-not-visible-during-knee-arthroscopy
#10
Mark J Sando, Sean S Rajaee, Joseph P Liu, Michael Banffy, Orr Limpisvasti, John V Crues
OBJECTIVE: The purpose of this study was to compare standard knee arthroscopic and MRI findings and measurements for visualization of the femoral condyle articular cartilage. The hypothesis was that certain posterior cartilage defects identified with MRI may not be accessible with routine arthroscopy. MATERIALS AND METHODS: Six cadaveric knees were examined by routine arthroscopy through standard inferomedial and inferolateral portals. Suture anchors were inserted into the femoral condyles at 30°, 60°, 90°, and 120° of flexion as markers of the cartilage surface at the most posterior aspect of the condyle that could be accessed at each degree of flexion...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28065834/nanosecond-pulsed-electric-fields-trigger-cell-differentiation-in-chlamydomonas-reinhardtii
#11
Fan Bai, Christian Gusbeth, Wolfgang Frey, Peter Nick
Nanosecond pulsed electric fields (nsPEFs) have great potential for biotechnological and medical applications. However, the biological mechanisms causing the cellular responses are still far from understood. We used the unicellular green algae Chlamydomonas reinhardtii as experimental model to dissect the immediate consequences of electroporation from the developmental cellular responses evoked by nsPEFs. We observe that nsPEFs induce a short-term permeabilization of the membrane, accompanied by swelling and oxidative burst...
January 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28063269/novel-mapping-technique-for-localization-of-focal-and-reentrant-activation-during-atrial-fibrillation
#12
Yoshihide Takahashi, Shinsuke Iwai, Syu Yamashita, Mayumi Masumura, Masahito Suzuki, Kento Yabe, Yasuhiro Sato, Kenzo Hirao, Mitsuaki Isobe
INTRODUCTION: Identification of wavefront propagation pattern during AF remains challenging in ablation procedures. We sought to test a novel combination of a new mapping technology called Ripple Map and high density mapping to distinguish focal and reentrant activation during atrial fibrillation (AF). METHODS AND RESULTS: Subjects were patients undergoing ablation for persistent AF. If AF remained after isolation of the pulmonary veins, the left atrium (LA) was mapped by a high-density mapping catheter for later analysis, after which ablation was continued using a conventional stepwise approach...
January 7, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28060307/lateral-chronic-cranial-window-preparation-enables-in-vivo-observation-following-distal-middle-cerebral-artery-occlusion-in-mice
#13
Simon H Bayerl, Melina Nieminen-Kelhä, Thomas Broggini, Peter Vajkoczy, Vincent Prinz
Focal cerebral ischemia (i.e., ischemic stroke) may cause major brain injury, leading to a severe loss of neuronal function and consequently to a host of motor and cognitive disabilities. Its high prevalence poses a serious health burden, as stroke is among the principal causes of long-term disability and death worldwide(1). Recovery of neuronal function is, in most cases, only partial. So far, treatment options are very limited, in particular due to the narrow time window for thrombolysis(2,3). Determining methods to accelerate recovery from stroke remains a prime medical goal; however, this has been hampered by insufficient mechanistic insights into the recovery process...
December 29, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28060190/pathophysiological-differences-between-multifocal-fibromuscular-dysplasia-and-atherosclerotic-renal-artery-stenosis
#14
Daan J L van Twist, Alfons J H M Houben, Michiel W de Haan, Peter W de Leeuw, Abraham A Kroon
BACKGROUND: Fibromuscular dysplasia (FMD) and atherosclerotic renal artery stenosis (ARAS) are the most common causes of renovascular hypertension. So far, FMD is believed to cause hypertension via similar mechanisms as in ARAS, that is, a decrease in renal blood flow, which subsequently leads to increased renin secretion. However, given the differences in the blood pressure (BP)-lowering effect of revascularization between patients with ARAS and FMD, we questioned whether this is true...
January 5, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28060119/acquired-tef-in-hodgkin-lymphoma-in-a-child-a-rare-clinical-association
#15
Vinay Munikoty, Anmol Bhatia, Deepak Bansal, Ashim Das, Niranjan Khandelwal
BACKGROUND: Malignancy is the most common etiology of acquired fistulae between the tracheobronchial tree and esophagus. The majority are due to either primary bronchial or esophageal carcinoma, and are typically observed in adult population. The occurrence of tracheoesophageal fistula (TEF) in patients with Hodgkin lymphoma is a rare phenomenon. OBSERVATION: We report a rare case of Hodgkin lymphoma with TEF in a 10-year-old girl at presentation. She also developed pulmonary tuberculosis later during the follow up...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28045953/double-blind-controlled-randomized-trial-of-cyclophosphamide-versus-methylprednisolone-in-secondary-progressive-multiple-sclerosis
#16
Bruno Brochet, Mathilde S A Deloire, Paul Perez, Timothé Loock, Louise Baschet, Marc Debouverie, Sophie Pittion, Jean-Christophe Ouallet, Pierre Clavelou, Jérôme de Sèze, Nicolas Collongues, Patrick Vermersch, Hélène Zéphir, Giovanni Castelnovo, Pierre Labauge, Christine Lebrun, Mikael Cohen, Aurélie Ruet
BACKGROUND: Therapeutic options are limited in secondary progressive multiple sclerosis (SPMS). Open-label studies suggested efficacy of monthly IV cyclophosphamide (CPM) without induction for delaying progression but no randomized trial was conducted so far. OBJECTIVE: To compare CPM to methylprednisolone (MP) in SPMS. METHODS: Randomized, double-blind clinical trial on two parallel groups. Patient with SPMS, with a documented worsening of the Expanded Disability Status Scale (EDSS) score during the last year and an EDSS score between 4·0 and 6·5 were recruited and received one intravenous infusion of treatment (CPM: 750 mg /m2 body surface area-MP: 1g) every four weeks for one year, and every eight weeks for the second year...
2017: PloS One
https://www.readbyqxmd.com/read/28043885/application-of-far-lateral-approach-to-sub-axial-spine-application-technical-difficulties-and-results
#17
Harnarayan Singh, Rana Patir, Sandeep Vaishya, Anurag Gupta, Rahul Miglani
No abstract text is available yet for this article.
December 30, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28034353/new-therapeutics-to-modulate-mitochondrial-function-in-neurodegenerative-disorders
#18
Heather M Wilkins, Jill K Morris
BACKGROUND: Mitochondrial function and energy metabolism are impaired in neurodegenerative diseases. There is evidence for these functional declines both within the brain and systemically in Alzheimer's disease, Parkinson's disease, and Amyotrophic Lateral Sclerosis. Due to these observations, therapeutics targeted to alter mitochondrial function and energy pathways are increasingly studied in pre-clinical and clinical settings. METHODS: The goal of this article was to review therapies with specific implications on mitochondrial energy metabolism published through May 2016 that have been tested for treatment of neurodegenerative diseases...
December 30, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28032849/reflections-on-a-decade-of-face-transplantation
#19
Giorgio Giatsidis, Indranil Sinha, Bohdan Pomahac
On November 27, 2005, Isabelle Dinoire underwent the world's first partial face transplant in Amiens (France) after a dog attack had left her face severely disfigured. The abrupt surgical leap found the medical community and society unprepared to deal with the scientific, ethical, and societal implications of a surgical procedure that was striving to transition from sci-fi novels to science. Today, 10 years and over 35 transplants later, public opinion has become accustomed to the concept of "face restoration" through transplantation...
April 26, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/28031077/deployment-of-medical-relief-teams-of-the-indian-army-in-the-aftermath-of-the-nepal-earthquake-lessons-learned
#20
Ashutosh Chauhan, Bhushan Kumar Chopra
In April 2015 a 7.8-magnitude earthquake hit Nepal. As part of relief operations named Operation Maitri, the Indian Armed Forces deployed 3 field hospitals in the disaster zone. Rapid deployment of mobile surgical teams to far-flung, inaccessible areas was done by helicopters. In an operational deployment spanning 1 month, a total of 7532 patients were treated and 105 surgeries were carried out on 83 patients. One-fifth of the patients were less than 18 years of age. One-third of the patients had traumatic injuries directly attributable to the earthquake, whereas the remaining patients were treated for diseases of poor sanitation and hygiene as well as chronic illness that had been neglected owing to the collapse of the local health infrastructure...
December 29, 2016: Disaster Medicine and Public Health Preparedness
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