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https://www.readbyqxmd.com/read/28535614/elucidating-bottlenecks-of-the-efficient-preparation-of-an-ab5-hexamer-mucosal-adjuvant-protein-ltm-by-genetic-engineering
#1
Di Liu, Fabiao Hu, Wenpeng Wang, Dong Wu, Xiujuan He, Wenyun Zheng, Haipeng Liu, Xingyuan Ma
Escherichia coli heat-labile enterotoxin (LT) and its non-toxic mutant (LTm) are well-known powerful mucosal adjuvants and immunogens. However, the yields of these adjuvants from genetically engineered strains remain at extremely low levels, thereby hindering their extensive application in fundamental and clinical research. Therefore, efficient production of these adjuvant proteins from genetically engineered microbes is a huge challenge in the field of molecular biology. In order to explore expression bottlenecks of LTm in E...
May 24, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28535554/anesthetic-considerations-and-perioperative-management-of-spinal-cord-stimulators-literature-review-and-initial-recommendations
#2
Michael E Harned, Brandon Gish, Allison Zuelzer, Jay S Grider
BACKGROUND: Patients with implanted spinal cord stimulators (SCS) present to the anesthesia care team for management at many different points along the care continuum. Currently, the literature is sparse on the perioperative management. What is available is confusing; monopolar electrocautery is contraindicated but often used, full body magnetic resonance imaging (MRI) is safe with particular systems but with other manufactures only head and specific extremities exams are safe. Moreover, there are anesthetizing locations outside of the operating room where implanted SCS can interact with surrounding medical equipment and pose significant risk to patient and device...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28535546/cost-utility-analysis-of-lumbar-interlaminar-epidural-injections-in-the-treatment-of-lumbar-disc-herniation-central-spinal-stenosis-and-axial-or-discogenic-low-back-pain
#3
Laxmaiah Manchikanti, Vidyasagar Pampati, Ramsin M Benyamin, Joshua A Hirsch
BACKGROUND: Cost utility or cost effective analysis continues to take center stage in the United States for defining and measuring the value of treatments in interventional pain management. Appropriate cost utility analysis has been performed for caudal epidural injections, percutaneous adhesiolysis, and spinal cord stimulation. However, the literature pertaining to lumbar interlaminar epidural injections is lacking, specifically in reference to cost utility analysis derived from randomized controlled trials (RCTs) with a pragmatic approach in a practical setting...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28535515/extracorporeal-treatments-in-patients-with-acute-kidney-injury-and-sepsis
#4
Marita Marengo, Sergio Dellepiane, Vincenzo Cantaluppi
Acute kidney injury (AKI) is one of the most common sepsis complications, and AKI development increases the risk of sepsis episodes by affecting host immune competence. The concomitance of these 2 clinical syndromes is associated with an extremely poor prognosis with mortality rates ranging from 50 to 70%. These unacceptable outcomes reflect the poor knowledge of the underlying pathogenic mechanisms and the lack of appropriate diagnostic and therapeutic methodologies as well as of appropriate experimental models...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535490/moderate-ocean-warming-mitigates-but-more-extreme-warming-exacerbates-the-impacts-of-zinc-from-engineered-nanoparticles-on%C3%A2-a%C3%A2-marine-larva
#5
Benjamin Mos, Katrina L Kaposi, Andrew L Rose, Brendan Kelaher, Symon A Dworjanyn
There is growing concern about the combined effects of multiple human-induced stressors on biodiversity. In particular, there are substantial knowledge gaps about the combined effects of existing stressors (e.g. pollution) and predicted environmental stress from climate change (e.g. ocean warming). We investigated the impacts of ocean warming and engineered nanoparticles (nano-zinc oxide, nZnO) on larvae of a cosmopolitan tropical sea urchin, Tripneustes gratilla. Larval T. gratilla were exposed to all combinations of three temperatures, 25, 27 and 29 °C (current SST and near-future predicted warming of +2 and + 4 °C) and six concentrations of nZnO (0, 0...
May 20, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28535484/biomonitoring-of-genotoxicity-of-industrial-fertilizer-pollutants-in-aiolopus-thalassinus-orthoptera-acrididae-using-alkaline-comet-assay
#6
Eman A Abdelfattah, Maria Augustyniak, Hesham A Yousef
Phosphate fertilizer industry is considered as one of the main sources of environmental pollutants. Besides solid waste products, e.g. phosphates, sulphates, and heavy metals, also atmospheric pollutants, such as hydrofluoric acid fumes (HF), sulphur dioxide (SO2), nitrogen oxides (NO2), and particulate matter with diameter up to 10 μm (PM10) can be dangerous. Genotoxic effect of these pollutants was monitored by assessing the DNA damage using alkaline comet assay on cells from brain, thoracic muscles and gut of Aiolopus thalassinus collected at three sites (A-C) located at 1, 3, and 6 km away from Abu-Zaabal Company for Fertilizers and Chemical Industries...
May 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28535427/far-infrared-ray-fir-therapy-an-effective-and-oncological-safe-treatment-modality-for-breast-cancer-related-lymphedema
#7
Ke Li, Liang Xia, Ning Fei Liu, Fabio Nicoli, Joannis Constantinides, Christopher D'Ambrosia, Davide Lazzeri, Mathias Tremp, Ju Fang Zhang, Yi Xin Zhang
BACKGROUND: The incidence of breast cancer related lymphedema is approximately 5%. Far infrared ray (FIR) treatment can potentially reduce fluid volume and extremity circumference as well as the frequency of dermato-lymphangitis (DLA). However, there is no published data on the oncological safety of FIR and the potential for activation of any residual breast cancer cells. The aim of this study is to investigate the safety of far infrared ray (FIR) treatment of postmastectomy lymphedema, clinically and in vitro...
May 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28535341/fully-stretchable-optoelectronic-sensors-based-on-colloidal-quantum-dots-for-sensing-photoplethysmographic-signals
#8
Tae-Ho Kim, Chang-Seok Lee, Sangwon Kim, Jaehyun Hur, Sangmin Lee, Keun Wook Shin, Young-Zoon Yoon, Moon Kee Choi, Jiwoong Yang, Dae-Hyeong Kim, Taeghwan Hyeon, Seongjun Park, Sungwoo Hwang
Flexible and stretchable optoelectronic devices can be potentially applied in displays, biosensors, biomedicine, robotics, and energy generation. The use of nanomaterials with superior optical properties such as quantum dots (QDs) is important in the realization of wearable displays and biomedical devices, but specific structural design as well as selection of materials should preferentially accompany this technology to realize stretchable forms of these devices. Here, we report stretchable optoelectronic sensors manufactured using colloidal QDs and integrated with elastomeric substrates, whose optoelectronic properties are stable under various deformations...
May 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28535340/optical-binding-of-nanowires
#9
Stephen H Simpson, Pavel Zemanek, Onofrio M Marago, Philip H Jones, Simon Hanna
Multiple scattering of light induces structured interactions, or optical binding forces, between collections of small particles. This has been extensively studied in the case of micro-spheres. However, binding forces are strongly shape dependent: here, we turn our attention to dielectric nanowires. Using a novel numerical model we uncover rich behaviour. The extreme geometry of the nanowires produces a sequence of stationary and dynamic states. In linearly polarized light, thermally stable ladder-like structures emerge...
May 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28535313/factors-associated-with-interest-in-pursuing-a-fourth-year-of-family-medicine-residency-training
#10
Patricia A Carney, M Patrice Eiff, Elaine Waller, Lars E Peterson
BACKGROUND AND OBJECTIVES: The optimal length of residency training in family medicine, as with emergency medicine, is an ongoing debate due to several factors, but perceptions of graduating residents are missing from this debate. METHODS: We used data from 3,054 family medicine residents who registered for the American Board of Family Medicine certification examination in 2014. A practice demographic questionnaire was a mandatory component of registration. The survey included the question, "If another year of training were available in your residency program, how likely would you be to pursue that?" We examined several factors potentially associated with interest in additional training...
May 2017: Family Medicine
https://www.readbyqxmd.com/read/28535069/monolithic-ingaas-nanowire-array-lasers-on-silicon-on-insulator-operating-at-room-temperature
#11
Hyunseok Kim, Wook-Jae Lee, Alan Cervantes Farrell, Juan S D Morales, Pradeep Nuwan Senanayake, Sergey V Prikhodko, Tomasz Ochalski, Diana L Huffaker
Chip-scale integrated light sources are a crucial component in a broad range of photonics applications. III-V semiconductor nanowire emitters have gained attention as a fascinating approach due to their superior material properties, extremely compact size, and the capability to grow directly on lattice-mismatched silicon substrates. Although there have been remarkable advances in nanowire-based emitters, their practical applications are still in the early stages due to the difficulties in integrating nanowire emitters with photonic integrated circuits...
May 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28535036/reversible-bond-cation-coupled-electron-transfer-on-phenylenediamine-based-rhodamine-b-and-its-application-on-electrochromism
#12
Xiaojun Wang, Shuo Wang, Chang Gu, Weiran Zhang, Hongzhi Zheng, Jingjing Zhang, Geyu Lu, Yu-Mo Zhang, Minjie Li, Sean Xiao-An Zhang
A bio-mimetic system on reversible bond coupled electron transfer (BCET) has been proposed and investigated in a switchable Rh-N molecule with redox active subunits. We discover that energy barrier of C-N bond breaking is reduced dramatically to less than 1/7 (from 40.4 kcal/mol to 5.5 kcal/mol), and 1/3 of the oxidation potential has been simultaneously lowered (from 0.67 V to 0.43 V) with the oxidation of Rh-N. The concept, cation coupled electron transfer (CCET), is highly recommended by analyzing existing proton coupled electron transfer (PCET) and metal coupled electron transfer (MCET) along with aforementioned BCET, which have same characteristic of transferring positive charges, such as proton, metal ion, and organic cation...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28535031/tunichrome-inspired-gold-enrichment-dispersion-matrix-and-its-application-in-water-treatment-a-proof-of-concept-investigation
#13
Amarendra Dhar Dwivedi, Rega Permana, Jitendra Pal Singh, Hakwon Yoon, Keun Hwa Chae, Yoon-Seok Chang, Dong Soo Hwang
Tunicate, a filter-feeder in seawater, is able to accumulate high amount of metals using intracellular polymer matrices. The woven pyrogallol structures of tunichrome, a small peptide contained in tunicate's blood cells, is believed to be responsible for selective metal sequestration in tunicates from seawater. However, the intriguing tunichrome matrix is difficult to harvest from the tunicate nor to synthesize massively due to the extreme oxidation sensitivity of the pyrogallol moiety which limits the study scope...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28535026/tetanus-%C3%A2-n%C3%A3-stan-bortgl%C3%A3-md-men-allvarlig-sjukdom-%C3%A3-ldre-kvinnor-%C3%A3-r-en-riskgrupp-diagnosen-kan-vara-en-utmaning
#14
Bernhard Hozgraefe, Akad Koria, Victoria Sem, Joak Johansson
Tetanus, an almost forgotten but serious disease Tetanus is the systemic consequence of a local infection with Clostridium tetani, that produces toxin which spreads in the systemic circulation. In developed countries, it is extremely rare. Women born before 1950 are a group at risk due to lower prevalence of immunisation. This report describes a case of tetanus. The patient is a previously healthy 82-year-old woman. She presented to primary care with a complaint of stiffness in the neck and jaw. A physical exam and basic laboratory tests were normal apart from a slightly increased blood pressure...
May 22, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28534889/hiv-1-infection-in-persons-homozygous-for-ccr5-%C3%AE-32-allele-the-next-case-and-the-review
#15
Joanna Smoleń-Dzirba, Magdalena Rosińska, Janusz Janiec, Marek Beniowski, Mariusz Cycoń, Jolanta Bratosiewicz-Wąsik, Tomasz J Wąsik
CC-chemokine receptor 5 serves as the coreceptor for the HIV-1 R5 strains, which are responsible for the majority of HIV transmissions. A deletion of 32 nucleotides in the gene encoding this receptor (termed CCR5-Δ32) leads to the suppression of CC-chemokine receptor 5 presentation at the cell surface, thus impeding process of HIV entry into the cell. Individuals homozygous for the CCR5-Δ32 allele are resistant to infection with HIV-1 R5 strains, and are extremely rare among HIV-1-infected individuals. We have described a case of person homozygous for CCR5-Δ32, who was infected with subtype B HIV-1...
May 23, 2017: AIDS Reviews
https://www.readbyqxmd.com/read/28534821/from-genome-to-phenotype-an-integrative-approach-to-evaluate-the-biodiversity-of-lactococcus-lactis
#16
REVIEW
Valérie Laroute, Hélène Tormo, Christel Couderc, Muriel Mercier-Bonin, Pascal Le Bourgeois, Muriel Cocaign-Bousquet, Marie-Line Daveran-Mingot
Lactococcus lactis is one of the most extensively used lactic acid bacteria for the manufacture of dairy products. Exploring the biodiversity of L. lactis is extremely promising both to acquire new knowledge and for food and health-driven applications. L. lactis is divided into four subspecies: lactis, cremoris, hordniae and tructae, but only subsp. lactis and subsp. cremoris are of industrial interest. Due to its various biotopes, Lactococcus subsp. lactis is considered the most diverse. The diversity of L...
May 19, 2017: Microorganisms
https://www.readbyqxmd.com/read/28534802/organ-location-determination-and-contour-sparse-representation-for-multi-organ-segmentation
#17
Siqi Li, Huiyan Jiang, Yu-Dong Yao, Benqiang Yang
Organ segmentation on computed tomography (CT) images is of great importance in medical diagnoses and treatment. This paper proposes organ location determination and contour sparse representation methods (OLD-CSR) for multiorgan segmentation (liver, kidney, and spleen) on abdomen CT images using an extreme learning machine (ELM) classifier. First, a location determination method is designed to obtain location information of each organ, which is used for coarse segmentation. Second, for coarse-to-fine segmentation, a contour gradient and rate change based feature point extraction method is proposed...
May 17, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28534778/the-lloydrelaxer-an-approach-to-minimize-scaling-effects-for-multivariate-projections
#18
Dirk J Lehmann, Holger Theisel
Star Coordinates are a popular projection technique in order to analyze and to disclose characteristic patterns of multidimensional data. Unfortunately, the shape, appearance, and distribution of such patterns are strongly affected by the given scaling of the data and can mislead the projection-based data analysis. In an extreme case, patterns might be more related to the choice of scaling than to the data themselves. Thus, we present the LloydRelaxer : a tool to minimize scaling-based effects in Star Coordinates...
May 17, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28534771/dynamic-graph-cuts-in-parallel
#19
Miao Yu, Shuhan Shen, Zhanyi Hu
This work aims at bridging the two important trends in efficient graph cuts in the literature, the one is to decompose a graph into several smaller subgraphs to take the advantage of parallel computation, the other is to reuse the solution of the max-flow problem on a residual graph to boost the efficiency on another similar graph. Our proposed parallel dynamic graph cuts algorithm takes the advantages of both, and is extremely efficient for certain dynamically changing MRF models in computer vision. The performance of our proposed algorithm is validated on two typical dynamic graph cuts problems: the foregroundbackground segmentation in video where similar graph cuts problems need to be solved in sequential and GrabCut where graph cuts is used iteratively...
May 16, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28534678/second-harmonic-correlation-spectroscopy-theory-and-principles-for-determining-surface-binding-kinetics
#20
Krystal L Sly, John C Conboy
A novel application of second harmonic correlation spectroscopy (SHCS) for the direct determination of molecular adsorption and desorption kinetics to a surface is discussed in detail. The surface-specific nature of second harmonic generation (SHG) provides an efficient means to determine the kinetic rates of adsorption and desorption of molecular species to an interface without interference from bulk diffusion, which is a significant limitation of fluorescence correlation spectroscopy (FCS). The underlying principles of SHCS for the determination of surface binding kinetics are presented, including the role of optical coherence and optical heterodyne mixing...
June 2017: Applied Spectroscopy
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