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https://www.readbyqxmd.com/read/28441135/proteomic-mapping-of-cytosol-facing-outer-mitochondrial-and-er-membranes-in-living-human-cells-by-proximity-biotinylation
#1
Victoria Hung, Stephanie S Lam, Namrata D Udeshi, Tanya Svinkina, Gaelen Guzman, Vamsi K Mootha, Steven A Carr, Alice Y Ting
The cytosol-facing membranes of cellular organelles contain proteins that enable signal transduction, regulation of morphology and trafficking, protein import and export, and other specialized processes. Discovery of these proteins by traditional biochemical fractionation can be plagued with contaminants and loss of key components. Using peroxidase-mediated proximity biotinylation, we captured and identified endogenous proteins on the outer mitochondrial membrane (OMM) and endoplasmic reticulum membrane (ERM) of living human fibroblasts...
April 25, 2017: ELife
https://www.readbyqxmd.com/read/28440288/longitudinal-spin-seebeck-coefficient-heat-flux-vs-temperature-difference-method
#2
A Sola, P Bougiatioti, M Kuepferling, D Meier, G Reiss, M Pasquale, T Kuschel, V Basso
The determination of the longitudinal spin Seebeck effect (LSSE) coefficient is currently plagued by a large uncertainty due to the poor reproducibility of the experimental conditions used in its measurement. In this work we present a detailed analysis of two different methods used for the determination of the LSSE coefficient. We have performed LSSE experiments in different laboratories, by using different setups and employing both the temperature difference method and the heat flux method. We found that the lack of reproducibility can be mainly attributed to the thermal contact resistance between the sample and the thermal baths which generate the temperature gradient...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436649/multi-arm-junctions-for-dynamic-dna-nanotechnology
#3
Shohei Kotani, William L Hughes
Non-enzymatic catalytic substrates have been engineered using toehold-mediated DNA strand displacement, and their programmable applications range from medical diagnosis to molecular computation. However, the complexity, stability, scalability, and sensitivity of those systems are plagued by network leakage. A novel way to suppress leakage is to increase its energy barrier through four-way branch migration. Presented here, we designed multi-arm junction substrates that simultaneously exploit four-way branch migration, with a high-energy barrier to minimize leakage, and three-way branch migration, with a low energy barrier to maximize catalysis...
April 24, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28435197/development-of-nested-polymerase-chain-reaction-based-diagnosis-of-duck-enteritis-virus-and-detection-of-dna-polymerase-gene-from-non-descriptive-duck-breeds-of-west-bengal-india
#4
Partha Sarathi Mandal, Sunit Kumar Mukhopadhayay, Saktipada Pradhan, Samiran Mondal, Chandrakanta Jana, Nimai Chandra Patra, Rabindra Nath Hansda
AIM: The study was undertaken to detect the clinical signs, postmortem lesions of embryonated duck plague (DP) infected eggs, and histopathological changes of chorioallantoic membrane (CAM) in non-descriptive ducks of West Bengal with special reference to standardize nested polymerase chain reaction (PCR). MATERIALS AND METHODS: After postmortem of suspected carcasses, samples were collected for virus isolation and identification through specific pathogen free (Khaki Campbell) embryonated duck eggs...
March 2017: Veterinary World
https://www.readbyqxmd.com/read/28435079/polyurethane-acrylates-as-effective-substrates-for-sustained-in-vitro-culture-of-human-myotubes
#5
Yosephine Andriani, Jason Chua Min-Wen, Benjamin Chua Yan-Jiang, Phang In Yee, Ng Shyh-Chang, Tan Wui Siew
Muscular disease has debilitating effects with severe damage leading to death. Our knowledge of muscle biology, disease and treatment is largely derived from non human cell models, even though non human cells are known to differ from human cells in their biochemical responses. Attempts to develop highly sought after in vitro human cell models have been plagued by early cell delamination and difficulties in achieving human myotube culture in vitro. In this work, we developed polyurethane acrylate (PUA) materials to support long term in vitro culture of human skeletal muscle tissue...
April 20, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28434128/aspects-on-the-history-of-transmission-and-favor-of-distribution-of-viruses-by-iatrogenic-action-perhaps-an-example-of-a-paradigm-of-the-worldwide-spread-of-hiv
#6
REVIEW
Lutz G Gürtler, Josef Eberle
Transmission of infectious agents might be associated with iatrogenic actions of charitable help in health care. An example is the vaccination against yellow fever in USA that transmitted hepatitis B virus. Another example is injections of praziquantel for treatment and cure of schistosomiasis in Central and Northern Africa, with a focus in Egypt that has spread hepatitis C virus. There is no indication that human T-lymphotropic virus type 1 was spread by injection treatment for African trypanosomiasis, syphilis and treponematosis, but these treatments might have contributed to the early spread of human immunodeficiency virus type 1 (HIV-1) in Central Africa...
April 22, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28433038/four-dimensional-coherent-electronic-raman-spectroscopy
#7
Elad Harel
The correlations between different quantum-mechanical degrees of freedom of molecular species dictate their chemical and physical properties. Generally, these correlations are reflected in the optical response of the system but in low-order or low-dimensionality measurement the signals are highly averaged. Here, we describe a novel four-dimensional coherent spectroscopic method that directly correlates within and between the manifold of electronic and vibrational states. The optical response theory is developed in terms of both resonant and non-resonant field-matter interactions...
April 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28432904/optimising-multi-frame-adf-stem-for-high-precision-atomic-resolution-strain-mapping
#8
Lewys Jones, Sigurd Wenner, Magnus Nord, Per Harald Ninive, Ole Martin Løvvik, Randi Holmestad, Peter D Nellist
Annular dark-field scanning transmission electron microscopy is a powerful tool to study crystal defects at the atomic scale but historically single slow-scanned frames have been plagued by low-frequency scanning-distortions prohibiting accurate strain mapping at atomic resolution. Recently, multi-frame acquisition approaches combined with post-processing have demonstrated significant improvements in strain precision, but the optimum number of frames to record has not been explored. Here we use a non-rigid image registration procedure before applying established strain mapping methods...
April 15, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/28423385/guidelines-for-the-management-of-diabetic-macular-edema-by-the-european-society-of-retina-specialists-euretina
#9
Ursula Schmidt-Erfurth, Jose Garcia-Arumi, Francesco Bandello, Karina Berg, Usha Chakravarthy, Bianca S Gerendas, Jost Jonas, Michael Larsen, Ramin Tadayoni, Anat Loewenstein
Diabetic retinal disease is envisioned to become the plague of the coming decades with a steep increase of worldwide diabetes incidence followed by a substantial rise in retinal disease. Improvements in diagnostic and therapeutic care have to cope with this dilemma in a clinically and socioeconomically efficient manner. Laser treatment has found a less destructive competitor in pharmacological treatments. As a consequence of recent rigorous clinical trials, laser photocoagulation is no longer recommended for the treatment of diabetic macular edema (DME), and anti-vascular endothelial growth factor therapy has emerged as first-line therapy...
April 20, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28422060/clarifying-the-ghrelin-system-s-ability-to-regulate-feeding-behaviours-despite-enigmatic-spatial-separation-of-the-ghsr-and-its-endogenous-ligand
#10
REVIEW
Alexander Edwards, Alfonso Abizaid
Ghrelin is a hormone predominantly produced in and secreted from the stomach. Ghrelin is involved in many physiological processes including feeding, the stress response, and in modulating learning, memory and motivational processes. Ghrelin does this by binding to its receptor, the growth hormone secretagogue receptor (GHSR), a receptor found in relatively high concentrations in hypothalamic and mesolimbic brain regions. While the feeding and metabolic effects of ghrelin can be explained by the effects of this hormone on regions of the brain that have a more permeable blood brain barrier (BBB), ghrelin produced within the periphery demonstrates a limited ability to reach extrahypothalamic regions where GHSRs are expressed...
April 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28421029/a-historical-view-of-motion-sickness-a-plague-at-sea-and-on-land-also-with-military-impact
#11
Doreen Huppert, Judy Benson, Thomas Brandt
Seasickness and its triggers, symptoms, and preventive measures were well known in antiquity. This chapter is based on an analysis of descriptions of motion sickness, in particular seasickness, in ancient Greek, Roman, and Chinese literature. A systematic search was made from the Greek period beginning with Homer in 800 BC to the late Roman period and ending with Aetios Amidenos in 600 AD, as well as in the Chinese medical classics dating from around 300 AD. Major aspects are the following: body movements caused by waves were identified in all cultures as the critical stimuli...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28419223/removal-of-batch-effects-using-distribution-matching-residual-networks
#12
Uri Shaham, Kelly P Stanton, Jun Zhao, Huamin Li, Khadir Raddassi, Ruth Montgomery, Yuval Kluger
Motivation: Sources of variability in experimentally derived data include measurement error in addition to the physical phenomena of interest. This measurement error is a combination of systematic components, originating from the measuring instrument, and random measurement errors. Several novel biological technologies, such as mass cytometry and single-cell RNA-seq, are plagued with systematic errors that may severely affect statistical analysis if the data is not properly calibrated...
April 13, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28418675/electric-field-induced-reversible-switching-of-the-magnetic-easy-axis-in-co-bifeo3-on-srtio3
#13
Tieren Gao, Xiaohang Zhang, William Ratcliff, Shingo Maruyama, Makoto Murakami, Anbusathaiah Varatharajan, Zahra Yamani, Peijie Chen, Ke Wang, Huairuo Zhang, Robert Shull, Leonid A Bendersky, John Unguris, Ramamoorthy Ramesh, Ichiro Takeuchi
Electric-field (E-field) control of magnetism enabled by multiferroic materials has the potential to revolutionize the landscape of present memory devices plagued with high energy dissipation. To date, this E-field controlled multiferroic scheme has only been demonstrated at room temperature using BiFeO3 films grown on DyScO3, a unique and expensive substrate, which gives rise to a particular ferroelectric domain pattern in BiFeO3. Here, we demonstrate reversible electric-field-induced switching of the magnetic state of the Co layer in Co/BiFeO3 (BFO) (001) thin film heterostructures fabricated on (001) SrTiO3 (STO) substrates...
April 20, 2017: Nano Letters
https://www.readbyqxmd.com/read/28412679/epidemic-characteristics-of-main-infectious-diseases-in-yantai-city-between-2010-and-2012-and-prevention-strategy-research
#14
Huimin Gao, Wenbo Luan, Maobo Wang, Yanjie Dong
To investigate the epidemic characteristics and prevention strategies of main infectious diseases. From 2010 to 2012, 23 notifiable diseases were reported in Yantai with average reported cases of 17,376. The morbidity was the highest in 2012 and the lowest in 2011. The accumulated death toll was 101 with the highest death rate in 2011 and the lowest in 2012. Major class A and B infectious diseases included viral hepatitis, phthisis, syphilis, clap and dysentery. The major class C infectious disease was hand-foot-and-mouth disease every year...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28409955/divergent-and-ultrahigh-thermal-conductivity-in-millimeter-long-nanotubes
#15
Victor Lee, Chi-Hsun Wu, Zong-Xing Lou, Wei-Li Lee, Chih-Wei Chang
Low-dimensional materials could display anomalous thermal conduction that the thermal conductivity (κ) diverges with increasing lengths, in ways inconceivable in any bulk materials. However, previous theoretical or experimental investigations were plagued with many finite-size effects, rendering the results either indirect or inconclusive. Indeed, investigations on the anomalous thermal conduction must demand the sample length to be sufficiently long so that the phenomena could emerge from unwanted finite-size effects...
March 31, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28407132/causal-mechanism-and-component-causes-in-mesoamerican-sri-lankan-nephropathy-the-moderator-s-view
#16
Carmine Zoccali
Inspired by Conan Doyle's novels, the pro contender of this Polar View undertakes an elegant exercise in territory common to epidemiology and police investigation and concludes that cyclic episodes of dehydration in individuals exposed to heavy work in very hot climates is the cause of Mesoamerican and Sri Lankan nephropathy. The contender in the opposite camp accepts the idea that dehydration may play a key role in this condition but highlights a different explanation, that it is contaminated water used for rehydration that is the eventual cause of the disease...
April 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28402602/a-plastic-crystal-electrolyte-interphase-for-all-solid-state-sodium-batteries
#17
Hongcai Gao, Leigang Xue, Sen Xin, Kyusung Park, John B Goodenough
The development of all-solid-state rechargeable batteries is plagued by a large interfacial resistance between a solid cathode and a solid electrolyte that increases with each charge-discharge cycle. The introduction of a plastic-crystal electrolyte interphase between a solid electrolyte and solid cathode particles reduces the interfacial resistance, increases the cycle life, and allows a high rate performance. Comparison of solid-state sodium cells with 1) solid electrolyte Na3 Zr2 (Si2 PO4 ) particles versus 2) plastic-crystal electrolyte in the cathode composites shows that the former suffers from a huge irreversible capacity loss on cycling whereas the latter exhibits a dramatically improved electrochemical performance with retention of capacity for over 100 cycles and cycling at 5 C rate...
April 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28402386/strandscript-evaluation-of-illumina-genotyping-array-design-and-strand-correction
#18
Jing Wang, David C Samuels, Yu Shyr, Yan Guo
Summary: After the introduction of high-throughput sequencing, genotyping arrays continue to be a viable source for conducting large-scale genetic studies. Currently, Illumina is one of the largest genotyping array manufacturers. One technical issue that has always plagued the post-processing of Illumina genotyping array data is the strand definition. Against convention, Illumina uses their own definition of strand, which is inconsistent with the standard reference forward and reverse definition...
April 8, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28400587/racetrack-memory-based-on-in-plane-field-controlled-domain-wall-pinning
#19
Fanny Ummelen, Henk Swagten, Bert Koopmans
Magnetic domain wall motion could be the key to the next generation of data storage devices, shift registers without mechanically moving parts. Various concepts of such so-called 'racetrack memories' have been developed, but they are usually plagued by the need for high current densities or complex geometrical requirements. We introduce a new device concept, based on the interfacial Dzyaloshinskii-Moriya interaction (DMI), of which the importance in magnetic thin films was recently discovered. In this device the domain walls are moved solely by magnetic fields...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28399549/cost-effectiveness-data-regarding-spinal-cord-stimulation-for-low-back-pain
#20
Christian Hoelscher, Jonathan Riley, Chengyuan Wu, Ashwini Sharan
STUDY DESIGN: Review of published literature pertaining to spinal cord stimulation cost data analysis. OBJECTIVE: To acquire, organize, and succinctly summarize the available literature regarding the costs associated with, and the cost-effectiveness of, spinal cord stimulation. SUMMARY OF BACKGROUND DATA: Chronic back and limb pain is a pervasive complaint in modern society, with estimated annual costs of medical care greater than $100 billion...
April 10, 2017: Spine
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