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https://www.readbyqxmd.com/read/28437460/an-aggregation-removal-model-for-the-formation-and-size-determination-of-post-synaptic-scaffold-domains
#1
Jonas Ranft, Leandro G Almeida, Pamela C Rodriguez, Antoine Triller, Vincent Hakim
The formation and stability of synapses are key questions in neuroscience. Post-synaptic domains have been classically conceived as resulting from local insertion and turnover of proteins at the synapse. However, insertion is likely to occur outside the post-synaptic domains and advances in single-molecule imaging have shown that proteins diffuse in the plane of the membrane prior to their accumulation at synapses. We quantitatively investigated this scenario using computer simulations and mathematical analysis, taking for definiteness the specific case of inhibitory synapse components, i...
April 24, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28436746/penetration-time-profiles-for-two-class-3b-lasers-in-in-situ-human-achilles-at-rest-and-stretched
#2
Daniel Huseby Bordvik, Sturla Haslerud, Ingvill Fjell Naterstad, Rodrigo Alvaro Brandão Lopes-Martins, Ernesto Cesar Pinto Leal Junior, Jan Magnus Bjordal, Jon Joensen
BACKGROUND AND OBJECTIVE: The majority of studies investigating penetration of laser light are performed in vitro on skin flaps, with measures of immediate penetration depth and energy loss. The aim of this study was to investigate the penetration time profiles for two different lasers used in low-level laser therapy, during 150 sec of exposure both in stretched and relaxed human Achilles in situ. MATERIALS AND METHODS: Thirty-four Achilles tendons from 17 healthy volunteers were irradiated by an 810 nm, 200 mW, continuous- and a 904 nm, 60 mW, super-pulsed laser...
April 21, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28435481/a-patient-centered-emergency-department-management-strategy-for-sickle-cell-disease-super-utilizers
#3
Grant G Simpson, Hallie R Hahn, Alex A Powel, Robert R Leverence, Linda A Morris, Lara G Thompson, Marc S Zumberg, Deepa J Borde, Joseph A Tyndall, Jonathan J Shuster, Donald M Yealy, Brandon R Allen
INTRODUCTION: A subpopulation of sickle-cell disease patients, termed super-utilizers, presents frequently to emergency departments (EDs) for vaso-occlusive events and may consume disproportionate resources without broader health benefit. To address the healthcare needs of this vulnerable patient population, we piloted a multidisciplinary intervention seeking to create and use individualized patient care plans that alter utilization through coordinated care. Our goals were to assess feasibility primarily, and to assess resource use secondarily...
April 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28434914/full-length-oligomeric-structure-of-wzz-determined-by-cryoelectron-microscopy-reveals-insights-into-membrane-bound-states
#4
Richard F Collins, Vasileios Kargas, Brad R Clarke, C Alistair Siebert, Daniel K Clare, Peter J Bond, Chris Whitfield, Robert C Ford
Wzz is an integral inner membrane protein involved in regulating the length of lipopolysaccharide O-antigen glycans and essential for the virulence of many Gram-negative pathogens. In all Wzz homologs, the large periplasmic domain is proposed to be anchored by two transmembrane helices, but no information is available for the transmembrane and cytosolic domains. Here we have studied purified oligomeric Wzz complexes using cryoelectron microscopy and resolved the transmembrane regions within a semi-continuous detergent micelle...
April 11, 2017: Structure
https://www.readbyqxmd.com/read/28434841/transcriptional-dependencies-in-diffuse-intrinsic-pontine-glioma
#5
Surya Nagaraja, Nicholas A Vitanza, Pamelyn J Woo, Kathryn R Taylor, Fang Liu, Lei Zhang, Meng Li, Wei Meng, Anitha Ponnuswami, Wenchao Sun, Jie Ma, Esther Hulleman, Tomek Swigut, Joanna Wysocka, Yujie Tang, Michelle Monje
Diffuse intrinsic pontine glioma (DIPG) is a fatal pediatric cancer with limited therapeutic options. The majority of cases of DIPG exhibit a mutation in histone-3 (H3K27M) that results in oncogenic transcriptional aberrancies. We show here that DIPG is vulnerable to transcriptional disruption using bromodomain inhibition or CDK7 blockade. Targeting oncogenic transcription through either of these methods synergizes with HDAC inhibition, and DIPG cells resistant to HDAC inhibitor therapy retain sensitivity to CDK7 blockade...
April 11, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28434252/vegetable-stir-fry-and-fruit-salad-the-super-diet-for-health
#6
Colin Binns, Wah Yun Low
No abstract text is available yet for this article.
April 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28434133/stiripentol-in-the-management-of-epilepsy
#7
REVIEW
Katherine C Nickels, Elaine C Wirrell
Stiripentol is a structurally unique antiepileptic drug that has several possible mechanisms of action, including diverse effects on the gamma-aminobutyric acid (GABA)-A receptor and novel inhibition of lactate dehydrogenase. Because of its inhibition of several cytochrome P450 enzymes, it has extensive pharmacokinetic interactions, which often necessitates reduction in doses of certain co-therapies, particularly clobazam. Stiripentol also has a neuroprotective action, by reducing calcium-mediated neurotoxicity...
April 22, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28433727/superficial-swab-versus-deep-tissue-biopsy-for-the-microbiological-diagnosis-of-local-infection-in-advanced-stage-pressure-ulcers-of-spinal-cord-injured-patients-a-prospective-study
#8
Sara Tedeschi, Luca Negosanti, Rossella Sgarzani, Filippo Trapani, Salvatore Pignanelli, Micaela Battilana, Rita Capirossi, Donatella Brillanti Ventura, Maddalena Giannella, Michele Bartoletti, Fabio Tumietto, Francesco Cristini, Pierluigi Viale
OBJECTIVE: To assess the predictive value of superficial ulcer swab culture to make a microbiological diagnosis of deep wound infections in spinal cord injury (SCI) patients with advanced-stage pressure ulcers (PU). METHODS: From July 2011 to February 2014, we performed a prospective, single-centre study on adult SCI patients undergoing scheduled surgical debridement and reconstruction for advanced-stage PU, at Montecatone Rehabilitation Institute, a 150-bed hospital dedicated to SCI care...
April 19, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28433581/therapeutic-burst-suppression-coma-in-pediatric-febrile-refractory-status-epilepticus
#9
Jainn-Jim Lin, Cheng-Che Chou, Shih-Yun Lan, Hsiang-Ju Hsiao, Yu Wang, Oi-Wa Chan, Shao-Hsuan Hsia, Huei-Shyong Wang, Kuang-Lin Lin
BACKGROUND: Evidence for the beneficial effect of therapeutic burst-suppression coma in pediatric patients with febrile refractory status epilepticus is limited, and the clinical outcomes of this treatment strategy are largely unknown. Therefore, the aim of this study was to explore the outcomes of therapeutic burst-suppression coma in a series of children with febrile refractory status epilepticus. METHODS: We retrospectively reviewed consecutive pediatric patients with febrile refractory status epilepticus admitted to our pediatric intensive care unit between January 2000 and December 2013...
April 19, 2017: Brain & Development
https://www.readbyqxmd.com/read/28432003/the-effectiveness-of-super-selective-injection-with-anchor-balloon-technique-for-collateral-channel-assessment
#10
Hiroki Shibutani, Yuzo Akita, Yumie Matsui, Masahiro Yoshinaga, Masahiro Karakawa, Etsuo Tsuchikane
The careful assessment of collateral channels is important for a retrograde approach for a chronic total coronary occlusion (CTO). This case report describes a percutaneous coronary intervention for CTO of the distal right coronary artery with good collateral circulation. All visible collateral channels failed by the retrograde approach; however, the procedure was successful using the distal atrial circumflex (AC) channel. Although this distal channel was poorly visualized on standard coronary angiography, it was clearly contrasted retrogradely from the CTO exit using a super-selective injection through the proximal AC channel as the antegrade flow was obstructed by the anchor balloon...
April 8, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28431093/interactions-between-cassava-mosaic-geminiviruses-and-their-vector-bemisia-tabaci-hemiptera-aleyrodidae
#11
Simon B Boni, Costancia P Rugumamu, Dan Gerling, K Sagary Nokoe, James P Legg
The sweetpotato whitefly, Bemisia tabaci (Gennadius) is the vector of the cassava mosaic geminiviruses (CMGs) that cause cassava mosaic disease (CMD). Synergistic interactions between B. tabaci and CMGs have been hypothesized as a cause of whitefly "super-abundance," which has been a key factor behind the spread of the severe CMD pandemic through East and Central Africa. The current study investigated this hypothesis by conducting experiments with CMD-susceptible cassava varieties infected with different CMGs in both the north-western Lake Zone region (pandemic affected) and the eastern Coast Zone where CMD is less severe...
April 18, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28430960/triple-site-pacing-for-cardiac-resynchronization-in-permanent-atrial-fibrillation-follow-up-results-from-a-prospective-observational-study
#12
Pedro Marques, Miguel Nobre Menezes, Gustavo Lima da Silva, Tatiana Guimarães, Ana Bernardes, Nuno Cortez-Dias, Luis Carpinteiro, João de Sousa, Fausto J Pinto
Aims: Cardiac Resynchronization Therapy (CRT) is associated with a particularly high non-response rate in patients with atrial fibrillation (AF). We aimed to assess the effectiveness of triple-site (Tri-V) pacing CRT in this population. Methods and results: Prospective observational study of patients with permanent AF who underwent CRT implantation with an additional right ventricle lead in the outflow tract septal wall. After implantation, programming mode (Tri-V or biventricular pacing) was selected based on cardiac output determination...
April 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28430511/anti-de-sitter-particles-and-manifest-super-isometries
#13
Alex S Arvanitakis, Alec E Barns-Graham, Paul K Townsend
Starting from the classical action for a spin-zero particle in a D-dimensional anti-de Sitter (AdS) spacetime, we recover the Breitenlohner-Freedman bound by quantization. For D=4, 5, 7 and using an Sl(2;K) spinor notation for K=R,C,H, we find a bitwistor form of the action for which the AdS isometry group is linearly realized, although only for zero mass when D=4, 7 in agreement with previous constructions. For zero mass and D=4 the conformal isometry group is linearly realized. We extend these results to the superparticle in the maximally supersymmetric "AdS×S" string or M-theory vacua, showing that quantization yields a 128+128 component supermultiplet...
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28430460/subradiance-via-entanglement-in-atoms-with-several-independent-decay-channels
#14
Martin Hebenstreit, Barbara Kraus, Laurin Ostermann, Helmut Ritsch
Spontaneous emission of atoms in free space is modified by the presence of other atoms in close vicinity inducing collective super- and subradiance. For two nearby atoms with a single decay channel the entangled antisymmetric superposition state of the two single excited states will not decay spontaneously. No such excited two-atom dark state exists, if the excited state has two independent optical decay channels of different frequencies or polarizations. However, we show that for an excited atomic state with N-1 independent spontaneous decay channels one can find a highly entangled N-particle dark state, which completely decouples from the vacuum radiation field...
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28430113/should-physicians-instead-of-industry-representatives-be-the-main-actor-of-cardiac-implantable-electronic-device-follow-up-super-follow-up
#15
Çağın Mustafa Üreyen, Cem Yunus Baş, İsa Öner Yüksel, Görkem Kuş, Göksel Çağırcı, Şakir Arslan
OBJECTIVE: This retrospective study sought to research the adequacy of the follow-up and optimization of cardiac implantable electronic devices (CIEDs) performed by industry representatives. METHODS: A total of 403 consecutive patients (35% females; median age, 67 years; age range 18-97 years) with either pacemakers (n=246), implantable cardioverter-defibrillators (ICDs), (n=117) or cardiac resynchronization therapy with defibrillator (CRT-D) (n=40) applied to our hospital's outpatient pacemaker clinic for follow-up...
April 19, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28429981/dying-in-hospital-socioeconomic-inequality-trends-in-england
#16
Helen Barratt, Miqdad Asaria, Jessica Sheringham, Patrick Stone, Rosalind Raine, Richard Cookson
Objective To describe trends in socioeconomic inequality in the proportion of deaths occurring in hospital, during a period of sustained effort by the NHS in England to improve end of life care. Methods Whole-population, small area longitudinal study involving 5,260,871 patients of all ages who died in England from 2001/2002 to 2011/2012. Our primary measure of inequality was the slope index of inequality. This represents the estimated gap between the most and least deprived neighbourhood in England, allowing for the gradient in between...
January 1, 2017: Journal of Health Services Research & Policy
https://www.readbyqxmd.com/read/28429598/preliminary-clinical-validation-of-a-differential-correction-method-for-improving-measurement-accuracy-in-noninvasive-measurement-of-blood-glucose-using-near-infrared-spectroscopy
#17
Guang Han, Xuyao Yu, Dandan Xia, Rong Liu, Jin Liu, Kexin Xu
One of the main challenges in the noninvasive sensing of blood glucose by near-infrared (NIR) spectroscopy is the background variations from light source drift, sweating, and temperature change at the human-machine interface. In this paper, a differential correction method based on the spectra from the floating-reference position and measuring position is proposed to eliminate these spectral variations from background interferences. Its effectiveness was validated by in vitro and in vivo experiments in which the diffuse reflectance of intralipid solutions and human skin was collected at the source distances of 0...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28429421/a-boat-shaped-tetracationic-macrocycle-with-a-semiconducting-organic-framework
#18
Minh T Nguyen, Matthew D Krzyaniak, Magdalena Owczarek, Daniel P Ferris, Michael R Wasielewski, J Fraser Stoddart
We report the synthesis of a tetracationic macrocycle which contains two N,N'-bis(methylene)naphthalenediimide units inserted in between the pyridinium rings of the bipyridinium units in cyclobis(paraquat-p-phenylene) (CBPQT(4+) or "blue box") and describe the investigation of its potential use in materials for organic electronics. The incorporation of the two naphthalenediimide (NDI) units into the constitution of CBPQT(4+) , not only changes the supramolecular properties of the tetracation in the solid state, but also has a profound influence on the electrochemical and electronic behavior of the resulting tetracationic macrocycle...
April 21, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28428691/relationship-between-xanthine-oxidase-ischemia-modified-albumin-nitric-oxide-with-antioxidants-in-non-pregnants-pre-and-post-delivery-of-normal-pregnants-and-preeclampsia
#19
Vanishree Bambrana, C D Dayanand, Pushpa Kotur
Preeclampsia is a multisystem disorder involves altered homeostasis of oxidants-antioxidants, inflammatory process and endothelial dysfunction. The present study aim was to determine the levels of oxidative stress parameters (malondialdehyde, protein carbonyl, ischemia modified albumin and xanthine oxidase), nutrient antioxidants (vitamin C and vitamin E), enzyme antioxidants (catalase, superoxide dismutase, glutathione peroxidase glutathione reductase), total antioxidant status (TAS) and its association with nitric oxide...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28428528/-challenge-of-treating-thoracoabdominal-aortic-aneurysms-with-hybrid-thoracic-endovascular-aortic-repair
#20
Takashi Shuto, Shinji Miyamoto
The treatment of thoracoabdominal aortic aneurysms in great vessels is still challenging, as the early results of the operation are not very promising compared with other aortic operations, and the incidence of spinal cord ischemia is relatively high. In Japan, which is becoming a super-aging society, the method of performing minimally invasive operations remains a major issue. At our facility, we have been performing abdominal debranching thoracic endovascular aortic repair (TEVAR) to resolve these issues...
April 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
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