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https://www.readbyqxmd.com/read/28928501/relationships-between-structural-fat-properties-with-sensory-physical-and-textural-attributes-of-yeast-leavened-laminated-salty-baked-product
#1
Ana E de la Horra, Gabriela N Barrera, Eugenia M Steffolani, Pablo D Ribotta, Alberto E León
The aim of this study was to establish relationships between structural fat properties and sensory, physical and textural attributes of yeast-leavened laminated salty products. Refined bovine fat (MG1) and shortening (MG2), with a solid fat content (SFC) higher than 20% at temperature range of 15-35 °C were more viscous and less sensitive to temperature changes. The micrographs of dough|fat|dough sections corresponding to samples with MG1 and MG2 revealed a lower penetration of the fat sheet in the dough section due to the more entangled fat structures that did not allow a great flow throughout the dough layer...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28926153/comparative-and-population-genomics-landscape-of-phellinus-noxius-a-hypervariable-fungus-causing-root-rot-in-trees
#2
Chia-Lin Chung, Tracy J Lee, Mitsuteru Akiba, Hsin-Han Lee, Tzu-Hao Kuo, Dang Liu, Huei-Mien Ke, Toshiro Yokoi, Marylette B Roa, Meiyeh J Lu, Ya-Yun Chang, Pao-Jen Ann, Jyh-Nong Tsai, Chien-Yu Chen, Shean-Shong Tzean, Yuko Ota, Tsutomu Hattori, Norio Sahashi, Ruey-Fen Liou, Taisei Kikuchi, Isheng J Tsai
The order Hymenochaetales of white rot fungi contain some of the most aggressive wood decayers causing tree deaths around the world. Despite their ecological importance and the impact of diseases they cause, little is known about the evolution and transmission patterns of these pathogens. Here, we sequenced and undertook comparative genomics analyses of Hymenochaetales genomes using brown root rot fungus Phellinus noxius, wood-decomposing fungus Phellinus lamaensis, laminated root rot fungus Phellinus sulphurascens, and trunk pathogen Porodaedalea pini...
September 19, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28924251/cyanobacterial-exopolymer-properties-differentiate-microbial-carbonate-fabrics
#3
Fumito Shiraishi, Yusaku Hanzawa, Tomoyo Okumura, Naotaka Tomioka, Yu Kodama, Hiroki Suga, Yoshio Takahashi, Akihiro Kano
Although environmental changes and evolution of life are potentially recorded via microbial carbonates, including laminated stromatolites and clotted thrombolites, factors controlling their fabric are still a matter of controversy. Herein, we report that the exopolymer properties of different cyanobacterial taxa primarily control the microbial carbonates fabrics in modern examples. This study shows that the calcite encrustation of filamentous Phormidium sp. secreting acidic exopolymers forms the laminated fabric of stromatolites, whereas the encrustation of coccoid Coelosphaeriopsis sp...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28919399/a-numerical-model-suggests-the-interplay-between-nuclear-plasticity-and-stiffness-during-a-perfusion-assay
#4
Solenne Deveraux, Rachele Allena, Denis Aubry
Cell deformability is a necessary condition for a cell to be able to migrate, an ability that is vital both for healthy and diseased organisms. The nucleus being the largest and stiffest organelle, it often is a barrier to cell migration. It is thus essential to characterize its mechanical behaviour. First, we numerically investigate the visco-elasto-plastic properties of the isolated nucleus during a compression test. This simulation highlights the impact of the mechanical behaviour of the nuclear lamina and the nucleoplasm on the overall plasticity...
September 14, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28919351/suspension-state-increases-reattachment-of-breast-cancer-cells-by-up-regulating-lamin-a-c
#5
Xiaomei Zhang, Yonggang Lv
Extravasation is a rate-limiting step of tumor metastasis, for which adhesion to endothelium of circulating tumor cells (CTCs) is the prerequisite. The suspension state of CTCs undergoing detachment from primary tumor is a persistent biomechanical cue, which potentially regulates the biophysical characteristics and cellular behaviors of tumor cells. In this study, breast tumor cells MDA-MB-231 in suspension culture condition were used to investigate the effect of suspension state on reattachment of CTCs. Our study demonstrated that suspension state significantly increased the adhesion ability of breast tumor cells...
September 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28917009/preparation-characterization-and-in-vitro%C3%A2-%C3%A2-in-vivo-evaluation-of-oral-time-controlled-release-etodolac-pellets
#6
Xiaoyu Zhang, Qi Li, Mingzhu Ye, Zhinan Zhao, Jiayi Sun, Xinggang Yang, Weisan Pan
The objective of this study was to prepare time-controlled release etodolac pellets to facilitate drug administration according to the body's biological rhythm, optimize the drug's desired effects, and minimize adverse effects. The preparation consisted of three laminal layers from center to outside: the core, the swelling layer, and the insoluble polymer membrane. Factors influenced the core and the coating films were investigated in this study. The core pellets formulated with etodolac, lactose, and sodium carboxymethyl starch (CMS-Na) were prepared by extrusion-spheronization and then coated by a fluidized bed coater...
September 15, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28913408/hepatocyte-specific-deletion-of-mouse-lamin-a-c-leads-to-male-selective-steatohepatitis
#7
Raymond Kwan, Graham F Brady, Maria Brzozowski, Sujith V Weerasinghe, Hope Martin, Min-Jung Park, Makayla J Brunt, Ram K Menon, Xin Tong, Lei Yin, Colin L Stewart, M Bishr Omary
BACKGROUND & AIMS: Lamins are nuclear intermediate filament proteins that comprise the major components of the nuclear lamina. Mutations in LMNA, which encodes lamins A/C, cause laminopathies, including lipodystrophy, cardiomyopathy, and premature aging syndromes. However, the role of lamins in the liver is unknown, and it is unclear whether laminopathy-associated liver disease is caused by primary hepatocyte defects or systemic alterations. METHODS: To address these questions, we generated mice carrying a hepatocyte-specific deletion of Lmna (knockout [KO] mice) and characterized the KO liver and primary hepatocyte phenotypes by immunoblotting, immunohistochemistry, microarray analysis, quantitative real-time polymerase chain reaction, and Oil Red O and Picrosirius red staining...
November 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28910666/nonlinear-elastic-multi-path-reciprocal-method-for-damage-localisation-in-composite-materials
#8
S Boccardi, D B Callá, F Ciampa, M Meo
Nonlinear ultrasonic techniques rely on the measurement of nonlinear elastic effects caused by the interaction of ultrasonic waves with the material damage, and have shown high sensitivity to detect micro-cracks and defects in the early stages. This paper presents a nonlinear ultrasonic technique, here named nonlinear elastic multi-path reciprocal method, for the identification and localisation of micro-damage in composite laminates. In the proposed methodology, a sparse array of surface bonded ultrasonic transducers is used to measure the second harmonic elastic response associated with the material flaw...
September 5, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28905291/morphology-effect-of-nano-hydroxyapatite-as-a-drug-carrier-of-methotrexate
#9
Haina Sun, Shanshan Liu, Xiongfeng Zeng, Xianguang Meng, Lina Zhao, Yizao Wan, Guifu Zuo
In this study, morphology effect of nano-hydroxyapatite as a drug carrier was investigated for the first time. Hydroxyapatite/methotrexate (HAp/MTX) hybrids with different morphologies were successfully prepared in situ using polyethylene glycol (PEG) as a template. SEM, TEM, XRD and FTIR results confirmed that the hybrids of different morphologies (laminated, rod-like and spherical) with similar phase composition and functional groups were obtained by changing the preparation parameters. UV-Vis spectroscopy was used to identify the drug loading capacity and drug release mechanism of the three hybrids with different morphologies...
September 13, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28904655/assessment-of-potentially-preventable-hospitalizations-in-the-regional-hospital-of-saint-louis-senegal
#10
Abdoul Aziz Ndiaye, Mouhameth Bakhoum, Alioune Badara Tall, Ndeye Fatou Ngom-Gueye, Mohamed Sidy Seck, Boubacar Gueye, Awa Diop-Ba, Awa Gaye, Gallo Papa Sow, Lamine Gueye, Anta Tal-Dia
INTRODUCTION: The "potentially preventable hospitalizations (PPH)'' are hospital admissions that could have been avoided through effective primary care given at the appropriate time. Non-communicable diseases (NCDs), causes of PPH, are the leading cause of death worldwide with significant socioeconomic consequences especially in developing countries. This study aimed to assess the burden of potentially preventable hospitalizations in the St. Louis regional hospital. METHODS: This was a descriptive cross-sectional study...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28902428/nuclear-lamina-genetic-variants-including-a-truncated-lap2-in-twins-and-siblings-with-nonalcoholic-fatty-liver-disease
#11
Graham F Brady, Raymond Kwan, Peter J Ulintz, Phirum Nguyen, Shirin Bassirian, Venkatesha Basrur, Alexey I Nesvizhskii, Rohit Loomba, M Bishr Omary
Nonalcoholic fatty liver disease (NAFLD) is becoming the major chronic liver disease in many countries. Its pathogenesis is multifactorial but twin and familial studies indicate significant heritability, which is not fully explained by currently-known genetic susceptibility loci. Notably, mutations in genes encoding nuclear lamina proteins, including lamins, cause lipodystrophy syndromes that include NAFLD. We hypothesized that variants in lamina-associated proteins predispose to NAFLD and used a candidate gene-sequencing approach to test for variants in 10 nuclear lamina-related genes in a cohort of 37 twin and sibling pairs: 21 individuals with, and 53 without, NAFLD...
September 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28901826/nuclear-networking
#12
Wei Xie, Brian Burke
Nuclear lamins are intermediate filament proteins that represent important structural components of metazoan nuclear envelopes (NEs). By combining proteomics and superresolution microscopy, we recently reported that both A- and B-type nuclear lamins form spatially distinct filament networks at the nuclear periphery of mouse fibroblasts. In particular, A-type lamins exhibit differential association with nuclear pore complexes (NPCs). Our studies reveal that the nuclear lamina network in mammalian somatic cells is less ordered and more complex than that of amphibian oocytes, the only other system in which the lamina has been visualized at high resolution...
July 4, 2017: Nucleus
https://www.readbyqxmd.com/read/28901746/a-lab-on-skin-a-review-of-flexible-and-stretchable-electronics-for-wearable-health-monitoring
#13
Yuhao Liu, Matt Pharr, Giovanni Antonio Salvatore
Skin is the largest organ of the human body, and it offers a diagnostic interface rich with vital biological signals from the inner organs, blood vessels, muscles, and dermis/epidermis. Soft, flexible, and stretchable electronic devices provide a novel platform to interface with soft tissues for robotic feedback and control, regenerative medicine, and continuous health monitoring. Here, we introduce the term "lab-on-skin" to describe a set of electronic devices that have physical properties, such as thickness, thermal mass, elastic modulus, and water-vapor permeability, which resemble those of the skin...
September 13, 2017: ACS Nano
https://www.readbyqxmd.com/read/28900009/on-the-origin-of-shape-fluctuations-of-the-cell-nucleus
#14
Fang-Yi Chu, Shannon C Haley, Alexandra Zidovska
The nuclear envelope (NE) presents a physical boundary between the cytoplasm and the nucleoplasm, sandwiched in between two highly active systems inside the cell: cytoskeleton and chromatin. NE defines the shape and size of the cell nucleus, which increases during the cell cycle, accommodating for chromosome decondensation followed by genome duplication. In this work, we study nuclear shape fluctuations at short time scales of seconds in human cells. Using spinning disk confocal microscopy, we observe fast fluctuations of the NE, visualized by fluorescently labeled lamin A, and of the chromatin globule surface (CGS) underneath the NE, visualized by fluorescently labeled histone H2B...
September 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28895914/a-24-ghz-front-end-integrated-on-a-multilayer-cellulose-based-substrate-for-doppler-radar-sensors
#15
Federico Alimenti, Valentina Palazzi, Chiara Mariotti, Marco Virili, Giulia Orecchini, Stefania Bonafoni, Luca Roselli, Paolo Mezzanotte
This paper presents a miniaturized Doppler radar that can be used as a motion sensor for low-cost Internet of things (IoT) applications. For the first time, a radar front-end and its antenna are integrated on a multilayer cellulose-based substrate, built-up by alternating paper, glue and metal layers. The circuit exploits a distributed microstrip structure that is realized using a copper adhesive laminate, so as to obtain a low-loss conductor. The radar operates at 24 GHz and transmits 5 mW of power. The antenna has a gain of 7...
September 12, 2017: Sensors
https://www.readbyqxmd.com/read/28894504/an-extract-from-the-plant-deschampsia-antarctica-protects-fibroblasts-from-senescence-induced-by-hydrogen-peroxide
#16
Ana Ortiz-Espín, Esther Morel, Ángeles Juarranz, Antonio Guerrero, Salvador González, Ana Jiménez, Francisca Sevilla
The Antarctic plant Deschampsia antarctica (DA) is able to survive in extreme conditions thanks to its special mechanism of protection against environmental aggressions. In this work, we investigated whether an aqueous extract of the plant (EDA) retains some of its defensive properties and is able to protect our skin against common external oxidants. We evaluated EDA over young human fibroblasts and exposed to H2O2, and we measured cell proliferation, viability, and senescence-associated β-galactosidase (SA-β-Gal)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28893946/a-radial-axis-defined-by-semaphorin-to-neuropilin-signaling-controls-pancreatic-islet-morphogenesis
#17
Philip T Pauerstein, Krissie Tellez, Kirk B Willmarth, Keon Min Park, Brian Hsueh, H Efsun Arda, Xueying Gu, Haig Aghajanian, Karl Deisseroth, Jonathan A Epstein, Seung K Kim
The islets of Langerhans are endocrine organs characteristically dispersed throughout the pancreas. During development, endocrine progenitors delaminate, migrate radially, and cluster to form islets. Despite the distinctive distribution of islets, spatially localized signals that control islet morphogenesis have not been discovered. Here we identify a radial signaling axis that instructs developing islet cells to disperse throughout the pancreas. A screen of pancreatic extracellular signals identified factors that stimulated islet cell development...
September 11, 2017: Development
https://www.readbyqxmd.com/read/28893461/nuclear-lamins-thin-filaments-with-major-functions
#18
REVIEW
Rebecca de Leeuw, Yosef Gruenbaum, Ohad Medalia
The nuclear lamina is a nuclear peripheral meshwork that is mainly composed of nuclear lamins, although a small fraction of lamins also localizes throughout the nucleoplasm. Lamins are classified as type V intermediate filament (IF) proteins. Mutations in lamin genes cause at least 15 distinct human diseases, collectively termed laminopathies, including muscle, metabolic, and neuronal diseases, and can cause accelerated aging. Most of these mutations are in the LMNA gene encoding A-type lamins. A growing number of nuclear proteins are known to bind lamins and are implicated in both nuclear and cytoskeletal organization, mechanical stability, chromatin organization, signaling, gene regulation, genome stability, and cell differentiation...
September 8, 2017: Trends in Cell Biology
https://www.readbyqxmd.com/read/28892082/myofibril-contraction-and-crosslinking-drive-nuclear-movement-to-the-periphery-of-skeletal-muscle
#19
William Roman, João P Martins, Filomena A Carvalho, Raphael Voituriez, Jasmine V G Abella, Nuno C Santos, Bruno Cadot, Michael Way, Edgar R Gomes
Nuclear movements are important for multiple cellular functions, and are driven by polarized forces generated by motor proteins and the cytoskeleton. During skeletal myofibre formation or regeneration, nuclei move from the centre to the periphery of the myofibre for proper muscle function. Centrally located nuclei are also found in different muscle disorders. Using theoretical and experimental approaches, we demonstrate that nuclear movement to the periphery of myofibres is mediated by centripetal forces around the nucleus...
September 11, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28887526/thin-zeolite-laminates-for-rapid-and-energy-efficient-carbon-capture
#20
Farid Akhtar, Steven Ogunwumi, Lennart Bergström
Thin, binder-less zeolite NaX laminates, with thicknesses ranging between 310 to 750 μm and widths exceeding 50 mm and biaxial tensile strength in excess of 3 MPa, were produced by pulsed current processing. The NaX laminates displayed a high CO2 adsorption capacity and high binary CO2-over-N2 and CO2-over-CH4 selectivity, suitable for CO2 capture from flue gas and upgrading of raw biogas. The thin laminates displayed a rapid CO2 uptake; NaX laminates with a thickness of 310 μm were saturated to 40% of their CO2 capacity within 24 seconds...
September 8, 2017: Scientific Reports
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