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https://www.readbyqxmd.com/read/29455935/engineering-pgpmos-through-gene-editing-and-systems-biology-a-solution-for-phytoremediation
#1
REVIEW
Supratim Basu, Roel C Rabara, Sangeeta Negi, Pratyoosh Shukla
In light of extensive urbanization and deforestation, toxic wastes are being released into the atmosphere, causing increased air and soil pollution. Conventional methods of soil remediation are time consuming and labor and cost intensive, rendering them uneconomical to maintain sustainable agriculture. One solution is to use natural resources like plants and microbes for phytoremediation. A thorough systemic knowledge of plant-microbe interactions will allow the use of gene editing and gene manipulation techniques to increase the efficiency of plants in phytoremediation...
February 15, 2018: Trends in Biotechnology
https://www.readbyqxmd.com/read/29454657/monitoring-brain-neuronal-activity-with-manipulation-of-cardiac-events-in-a-freely-moving-rat
#2
Yu Shikano, Yuji Ikegaya, Takuya Sasaki
Behavioral and cognitive studies have demonstrated that brain functions are affected by the activity states of the peripheral organs, such as the cardiac and respiratory systems. However, detailed neurophysiological mechanisms underlying the body-brain interactions remain unknown. In this study, we developed a method for manipulating activity levels of the heart using direct cardiac stimulation and vagus nerve stimulation that can be combined with recording cerebral local field potentials using a microdrive system, electrocardiograms, electromyograms, in a freely moving rat...
February 15, 2018: Neuroscience Research
https://www.readbyqxmd.com/read/29454188/modified-two-step-emulsion-solvent-evaporation-technique-for-fabricating-biodegradable-rod-shaped-particles-in-the-submicron-size-range
#3
Hanieh Safari, Reheman Adili, Michael Holinstat, Omolola Eniola-Adefeso
HYPOTHESIS: Though the emulsion solvent evaporation (ESE) technique has been previously modified to produce rod-shaped particles, it cannot generate small-sized rods for drug delivery applications due to the inherent coupling and contradicting requirements for the formation versus stretching of droplets. The separation of the droplet formation from the stretching step should enable the creation of submicron droplets that are then stretched in the second stage by manipulation of the system viscosity along with the surface-active molecule and oil-phase solvent...
February 9, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29454150/assessment-of-cervical-stiffness-in-axial-rotation-among-chronic-neck-pain-patients-a-trial-in-the-framework-of-a-non-manipulative-osteopathic-management
#4
P-M Dugailly, A Coucke, W Salem, V Feipel
BACKGROUND: Cervical stiffness is a clinical feature commonly appraised during the functional examination of cervical spine. Measurements of cervical stiffness in axial rotation have not been reported for patients with neck pain. The purpose of this study was to investigate cervical spine stiffness in axial rotation among neck pain patients and asymptomatic subjects, and to analyze the impact of osteopathic management. METHODS: Thirty-five individuals (17 patients) were enrolled...
February 12, 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29451903/stability-lies-in-flowers-plant-diversification-mediating-shifts-in-arthropod-food-webs
#5
Marcelo Mendes Haro, Luís Cláudio Paterno Silveira, Andrew Wilby
Arthropod community composition in agricultural landscapes is dependent on habitat characteristics, such as plant composition, landscape homogeneity and the presence of key resources, which are usually absent in monocultures. Manipulating agroecosystems through the insertion of in-field floral resources is a useful technique to reduce the deleterious effects of habitat simplification. Food web analysis can clarify how the community reacts to the presence of floral resources which favour ecosystem services such as biological control of pest species...
2018: PloS One
https://www.readbyqxmd.com/read/29449795/foundations-for-streaming-model-transformations-by-complex-event-processing
#6
István Dávid, István Ráth, Dániel Varró
Streaming model transformations represent a novel class of transformations to manipulate models whose elements are continuously produced or modified in high volume and with rapid rate of change. Executing streaming transformations requires efficient techniques to recognize activated transformation rules over a live model and a potentially infinite stream of events. In this paper, we propose foundations of streaming model transformations by innovatively integrating incremental model query, complex event processing (CEP) and reactive (event-driven) transformation techniques...
2018: Software and Systems Modeling
https://www.readbyqxmd.com/read/29446873/laser-stimulating-st36-with-optical-fiber-induce-blood-component-changes-in-mice-a-raman-spectroscopy-study
#7
Heng Zhang, Zhenyi Chen, Jiping Wu, Na Chen, Wenjie Xu, Taihao Li, Shupeng Liu
ST36 is a commonly-used acupoint in traditional Chinese medicine (TCM) for treatment of inflammations, pains and gastrointestinal disturbs. For decades,the low power laser acupuncture has been widely applied as an alternative therapy to traditional metal needle acupuncture and achieved relatively fine therapeutic effect for ST36-related symptoms with reduction of uncomfortableness and infection risks. However its disadvantages of low penetrativity and lack of manipulation skills limit its potential performance...
February 15, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29445593/minimally-invasive-techniques-in-thymic-surgery-a-worldwide-perspective
#8
REVIEW
Hasan Fevzi Batirel
Minimally invasive surgical techniques are important in surgical management of thymic pathologies. Traditional access techniques are being replaced with minimally invasive techniques using multiportal or uniportal approach. Adoption of minimally invasive techniques for thymic malignancies has been slow due to long term recurrence concerns. Recent studies show that minimally invasive video-assisted thoracoscopic surgery (VATS) or robotic approach to early stage thymic malignancies are associated with less intraoperative bleeding, lower rate of respiratory complications, shorter chest tube duration and shorter hospital stay...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29443501/magnetically-actuated-peanut-colloid-motors-for-cell-manipulation-and-patterning
#9
Zhihua Lin, Xinjian Fan, Mengmeng Sun, Changyong Gao, Qiang He, Hui Xie
We report a magnetically-actuated, peanut-shaped hematite colloid motor that can not only move in a rolling or wobbling mode in fluids but also perform single-cell manipulation and patterning in a non-contact manner. The peanut motor in the rolling mode can reach a maximal velocity of 10.6 μm s-1 under a rotating magnetic field of 130 Hz and 6.3 mT and can achieve a more precisely controllable motion in predefined tracks. By comparison, the peanut motor in the wobbling mode can reach a maximal velocity of 14...
February 14, 2018: ACS Nano
https://www.readbyqxmd.com/read/29443100/single-cell-resolution-fluorescence-live-imaging-of-drosophila-circadian-clocks-in-larval-brain-culture
#10
Virginie Sabado, Emi Nagoshi
The circadian pacemaker circuit orchestrates rhythmic behavioral and physiological outputs coordinated with environmental cues, such as day/night cycles. The molecular clock within each pacemaker neuron generates circadian rhythms in gene expression, which underlie the rhythmic neuronal functions essential to the operation of the circuit. Investigation of the properties of the individual molecular oscillators in different subclasses of pacemaker neurons and their interaction with neuronal signaling yields a better understanding of the circadian pacemaker circuit...
January 19, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29443073/percutaneous-contrast-echocardiography-guided-intramyocardial-injection-and-cell-delivery-in-a-large-preclinical-model
#11
Alejandro Giraldo, Jesús Talavera López, Maria Josefa Fernandez-Del-Palacio, Obdulio García-Nicolás, Juan Seva, Gavin Brooks, José María Moraleda
Cell and gene therapy are exciting and promising strategies for the purpose of cardiac regeneration in the setting of heart failure with reduced ejection fraction (HFrEF). Before they can be considered for use, and implemented in humans, extensive preclinical studies are required in large animal models to evaluate the safety, efficacy, and fate of the injectate (e.g., stem cells) once delivered into the myocardium. Small rodent models offer advantages (e.g., cost effectiveness, amenability for genetic manipulation); however, given inherent limitations of these models, the findings in these rarely translate into the clinic...
January 21, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29443066/constitutive-and-inducible-systems-for-genetic-in-vivo-modification-of-mouse-hepatocytes-using-hydrodynamic-tail-vein-injection
#12
Eric K Hubner, Christian Lechler, Thomas N Rösner, Birgit Kohnke-Ertel, Roland M Schmid, Ursula Ehmer
In research models of liver cancer, regeneration, inflammation, and fibrosis, flexible systems for in vivo gene expression and silencing are highly useful. Hydrodynamic tail vein injection of transposon-based constructs is an efficient method for genetic manipulation of hepatocytes in adult mice. In addition to constitutive transgene expression, this system can be used for more advanced applications, such as shRNA-mediated gene knock-down, implication of the CRISPR/Cas9 system to induce gene mutations, or inducible systems...
February 2, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29440682/time-reversed-magnetically-controlled-perturbation-trmcp-optical-focusing-inside-scattering-media
#13
Zhipeng Yu, Jiangtao Huangfu, Fangyuan Zhao, Meiyun Xia, Xi Wu, Xufeng Niu, Deyu Li, Puxiang Lai, Daifa Wang
Manipulating and focusing light deep inside biological tissue and tissue-like complex media has been desired for long yet considered challenging. One feasible strategy is through optical wavefront engineering, where the optical scattering-induced phase distortions are time reversed or pre-compensated so that photons travel along different optical paths interfere constructively at the targeted position within a scattering medium. To define the targeted position, an internal guidestar is needed to guide or provide a feedback for wavefront engineering...
February 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29437447/coulomb-driven-relativistic-electron-beam-compression
#14
Chao Lu, Tao Jiang, Shengguang Liu, Rui Wang, Lingrong Zhao, Pengfei Zhu, Dao Xiang, Jie Zhang
Coulomb interaction between charged particles is a well-known phenomenon in many areas of research. In general, the Coulomb repulsion force broadens the pulse width of an electron bunch and limits the temporal resolution of many scientific facilities such as ultrafast electron diffraction and x-ray free-electron lasers. Here we demonstrate a scheme that actually makes use of the Coulomb force to compress a relativistic electron beam. Furthermore, we show that the Coulomb-driven bunch compression process does not introduce additional timing jitter, which is in sharp contrast to the conventional radio-frequency buncher technique...
January 26, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29437157/tuning-electrical-and-optical-anisotropy-of-a-monolayer-black-phosphorus-magnetic-superlattice
#15
X J Li, Jiahan Yu, Kun Luo, Zhenhua Wu, Wen Yang
We investigate theoretically the effects of modulated periodic perpendicular magnetic fields on the electronic states and optical absorption spectrum in a monolayer black phosphorus (phosphorene). We demonstrate that different phosphorene magnetic superlattice (PMS) orientations can give rise to distinct energy spectra, i.e., tuning the intrinsic electronic anisotropy. The Rashba spin-orbit coupling (RSOC) will develop a spin-splitting energy dispersion in this phosphorene magnetic superlattice...
February 13, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29434683/the-inhibitory-roles-of-ihh-downregulation-on-chondrocyte-growth-and-differentiation
#16
Ang Deng, Hongqi Zhang, Minyu Hu, Shaohua Liu, Yuxiang Wang, Qile Gao, Chaofeng Guo
The proliferative rate of chondrocytes affects bone elongation. Chondrocyte hypertrophy is required for endochondral bone formation as chondrocytes secrete factors required for osteoblast differentiation and maturation. Previous studies have demonstrated that the Indian hedgehog (Ihh) signaling pathway is a key regulator of skeletal development and homeostasis. The aim of the present study was to investigate the function of Ihh in chondrocyte proliferation and differentiation, as well as the underlying mechanisms...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29434095/simple-formation-of-cell-arrays-embedded-in-hydrogel-sheets-and-cubes
#17
Takatomo Sugano, Yui Sasaki, Fumio Mizutani, Tomoyuki Yasukawa
Arrays with cell aggregations and single-cell arrays embedded in hydrogel sheets were fabricated by negative dielectrophoretic (n-DEP) cell-manipulation techniques and hydrogel gelation. Cells suspended randomly in a prepolymer solution were rapidly manipulated to form an island-like organization of cells through the repulsive force of n-DEP by using a DEP device consisting of grid electrodes. The cell patterns were retained by irradiating ultraviolet (UV) light so as to urge gelation. Moreover, control of the optical transparency of the grid electrode allows for the fabrication of cubes with single cells and cell aggregation...
2018: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/29433186/traumatic-atlantoaxial-spondyloptosis-associated-with-displaced-odontoid-fracture-complete-reduction-via-posterior-approach-using-joint-remodeling-technique
#18
Amandeep Kumar, Gaurav Varshney, Pankaj K Singh, Deepak Agrawal, Guru D Satyarthee, Poodipedi S Chandra, Shashank S Kale, Ashok K Mahapatra
BACKGROUND: Atlantoaxial spondyloptosis (AAS), which is defined as complete displacement of facets of atlas anterior to the facets of axis such that there is no contact between the 2 articulating surfaces, is an extremely rare manifestation of atlantoaxial instability. The reason for an extreme rarity of traumatic AAS is probably the severity of injury in traumatic AAS that is usually incompatible to life. It represents the most severe form of atlantoaxial dislocation, and complete reduction in such a case presents a real technical challenge because of the interlocking of C1-C2 facets...
February 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29432490/differential-microstructural-alterations-in-rat-cerebral-cortex-in-a-model-of-chronic-mild-stress-depression
#19
Ahmad Raza Khan, Christopher D Kroenke, Ove Wiborg, Andrey Chuhutin, Jens R Nyengaard, Brian Hansen, Sune Nørhøj Jespersen
Chronic mild stress leads to depression in many cases and is linked to several debilitating diseases including mental disorders. Recently, neuronal tracing techniques, stereology, and immunohistochemistry have revealed persistent and significant microstructural alterations in the hippocampus, hypothalamus, prefrontal cortex, and amygdala, which form an interconnected system known as the stress circuit. Most studies have focused only on this circuit, however, some studies indicate that manipulation of sensory and motor systems may impact genesis and therapy of mood disorders and therefore these areas should not be neglected in the study of brain microstructure alterations in response to stress and depression...
2018: PloS One
https://www.readbyqxmd.com/read/29431643/epigenetic-dysregulation-of-the-drp1-binding-partners-mid49-and-mid51-increases-mitotic-mitochondrial-fission-and-promotes-pulmonary-arterial-hypertension-mechanistic-and-therapeutic-implications
#20
Kuang-Hueih Chen, Asish Dasgupta, Jianhui Lin, Francois Potus, Sebastien Bonnet, James Iremonger, Jennifer Fu, Jeffrey Mewburn, Danchen Wu, Kimberly Dunham-Snary, Anne L Theilmann, Zhi-Cheng Jing, Charles Hindmarch, Mark L Ormiston, Allan Lawrie, Stephen L Archer
Background -Mitotic fission is increased in pulmonary arterial hypertension (PAH), a hyperproliferative, apoptosis-resistant disease. The fission mediator, dynamin related protein 1 (Drp1) must complex with adaptor proteins to cause fission. Drp1-induced fission has been therapeutically targeted in experimental PAH. Here we examine the role of two recently discovered, poorly understood, Drp1 adapter proteins, mitochondrial dynamics protein of 49 and 51 kDa (MiD49 and MiD51) in normal vascular cells and explore their dysregulation in PAH...
February 5, 2018: Circulation
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