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https://www.readbyqxmd.com/read/29792924/creation-of-an-acellular-vaginal-matrix-for-potential-vaginal-augmentation-and-cloacal-repair
#1
K V Greco, L G Jones, I Obiri-Yeboa, T Ansari
STUDY OBJECTIVE: our aim was to use porcine vagina to create a vaginal matrix and test its cellular biocompatibility. DESIGN: vagina was harvested from pigs and de-cellularised (DC) using a combination of detergents (Triton x-100 and sodium deoxycholate) and enzymes (DNAse/RNAse). INTERVENTIONS: the presence of cellular material, collagen structural integrity and basement membrane proteins were assessed histologically. To address cytocompatibility, porcine adipose derived-mesenchymal stem cells (AD-MSC) were harvested from abdominal fat together with vaginal epithelial cells (VEC) and seeded onto the mucosal aspect of the vaginal scaffold...
May 21, 2018: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/29792422/toward-total-synthesis-of-thiolate-protected-metal-nanoclusters
#2
Qiaofeng Yao, Tiankai Chen, Xun Yuan, Jianping Xie
Total synthesis, where desired organic- and/or biomolecules could be produced from simple precursors at atomic precision and with known step-by-step reactions, has prompted centuries-lasting bloom of organic chemistry since its conceptualization in 1828 (Wöhler synthesis of urea). Such expressive science is also highly desirable in nanoscience, since it represents a decisive step toward atom-by-atom customization of nanomaterials for basic and applied research. Although total synthesis chemistry is less established in nanoscience, recent years have witnessed seminal advances and increasing research efforts devoted into this field...
May 24, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29792315/genomic-variation-among-and-within-six-juglans-species
#3
Kristian A Stevens, Keith Woeste, Sandeep Chakraborty, Marc W Crepeau, Charles A Leslie, Pedro J Martínez-García, Daniela Puiu, Jeanne Romero-Severson, Mark Coggeshall, Abhaya M Dandekar, Daniel Kluepfel, David B Neale, Steven L Salzberg, Charles H Langley
Genomic analysis in Juglans (walnuts) is expected to transform the breeding and agricultural production of both nuts and lumber. To that end, we report here the determination of reference sequences for six additional relatives of Juglans regia : Juglans sigillata (also from section Dioscaryon ), Juglans nigra , Juglans microcarpa, Juglans hindsii (from section Rhysocaryon ) , Juglans cathayensis (from section Cardiocaryon ), and the closely related Pterocarya stenoptera. While these are 'draft' genomes, ranging in size between 640Mbp and 990Mbp, their contiguities and accuracies can support powerful annotations of genomic variation that are often the foundation of new avenues of research and breeding...
May 23, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29792199/nanoparticle-delivery-of-grape-seed-derived-proanthocyanidins-to-airway-epithelial-cells-dampens-oxidative-stress-and-inflammation
#4
S Castellani, A Trapani, A Spagnoletta, L di Toma, T Magrone, S Di Gioia, D Mandracchia, G Trapani, E Jirillo, M Conese
BACKGROUND: Chronic respiratory diseases, whose one of the hallmarks is oxidative stress, are still incurable and need novel therapeutic tools and pharmaceutical agents. The phenolic compounds contained in grape are endowed with well-recognized anti-oxidant, anti-inflammatory, anti-cancer, and anti-aging activities. Considering that natural anti-oxidants, such as proanthocyanidins, have poor water solubility and oral bioavailability, we have developed a drug delivery system based on solid lipid nanoparticles (SLN), apt to encapsulate grape seed extract (GSE), containing proanthocyanidins...
May 23, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29789762/percutaneous-computed-tomography-guided-permanent-125-i-implantation-as-therapy-for-pulmonary-metastasis
#5
Xiaodong Huo, Bin Huo, Huixing Wang, Lei Wang, Qiang Cao, Guangjun Zheng, Junjie Wang, Shude Chai, Zuncheng Zhang, Kuo Yang, Yuanjie Niu, Haitao Wang
Purpose: To evaluate intermediate-term outcomes after computed tomography (CT)-guided radioactive 125 I seed implantation (CTRISI), and to determine prognostic variables associated with outcomes in patients with pulmonary metastases. Material and methods: Thoracic surgeons evaluated and performed implantation of 125 I radioactive seeds under CT guidance or combined with surgical resection. Patients were monitored in the thoracic surgery clinic for recurrence and survival...
April 2018: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/29788539/responses-of-primula-vulgaris-to-light-quality-in-the-maternal-and-germination-environments
#6
M Marin, C Blandino, G Laverack, P Toorop, A A Powell
In the model species Arabidopsis thaliana phytochromes mediate dormancy and germination responses to seasonal cues experienced during seed maturation on the maternal plants. However, the effect of the maternal light environment on seed germination in native wild species has not been studied well. This is particularly important given its practical application in the context of environmental restoration, when there can be marked changes in the canopy. Plants of Primula vulgaris were grown in the field over two vegetative seasons under four shading treatments from low to high ratio of red to far-red light (R:FR)...
May 22, 2018: Plant Biology
https://www.readbyqxmd.com/read/29786924/reproductive-ecology-of-ocotea-catharinensis-an-endangered-tree-species
#7
Tiago Montagna, Juliano Zago da Silva, Tiago Georg Pickart, Maurício Sedrez Dos Reis
Ocotea catharinensis (Lauraceae) is an endangered tree species from the Brazilian Atlantic Rainforest. Currently, little is known about the reproductive ecology of this species. Aiming to propose conservation measures, we described aspects related to phenology, floral biology, pollination, seed dispersal, and mating system of O. catharinensis. We conducted phenological observations in 62 individuals for two years. In one reproductive event, we evaluated nectar production, stigmatic receptivity, and pollen viability...
May 22, 2018: Plant Biology
https://www.readbyqxmd.com/read/29785893/evaluating-vaccination-strategies-to-control-foot-and-mouth-disease-a-country-comparison-study
#8
T G Rawdon, M G Garner, R L Sanson, M A Stevenson, C Cook, C Birch, S E Roche, K A Patyk, K N Forde-Folle, C Dubé, T Smylie, Z D Yu
Vaccination is increasingly being recognised as a potential tool to supplement 'stamping out' for controlling foot-and-mouth disease (FMD) outbreaks in non-endemic countries. Infectious disease simulation models provide the opportunity to determine how vaccination might be used in the face of an FMD outbreak. Previously, consistent relative benefits of specific vaccination strategies across different FMD simulation modelling platforms have been demonstrated, using a UK FMD outbreak scenario. We extended this work to assess the relative effectiveness of selected vaccination strategies in five countries: Australia, New Zealand, the USA, the UK and Canada...
May 22, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29784302/structural-characterization-of-resistant-starch-isolated-from-laird-lentils-lens-culinaris-seeds-subjected-to-different-processing-treatments
#9
Zhen Ma, Xiuxiu Yin, Xinzhong Hu, Xiaoping Li, Liu Liu, Joyce I Boye
This work focused on the structural characterization of resistant starch from untreated (UL-RS), germinated (GL-RS), fermented (FL-RS), microwaved (ML-RS), conventionally cooked (CL-RS), and autoclaved (AL-RS) lentil seeds. The size exclusion chromatography (SEC) results showed that UL-RS, RL-RS, and GL-RS (Group A samples) exhibited higher values of Mw and Rh ¯ than FL-RS, ML-RS, AL-RS (Group C samples), and CL-RS (Group B sample). In parallel with the SEC result, other structural characteristics followed similar trends, where Group C samples exhibited the lowest values of double helix content and crystallinity by 13 C NMR, and degree of order/double helix by FT-IR...
October 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29783938/biochemical-and-molecular-characterisation-of-exogenous-cytokinin-application-on-grain-filling-in-rice
#10
Binay Bhushan Panda, Sudhanshu Sekhar, Sushant Kumar Dash, Lamboder Behera, Birendra Prasad Shaw
BACKGROUND: Poor filling of grains in the basal spikelets of large size panicles bearing numerous spikelets has been a major limitation in attempts to increase the rice production to feed the world's increasing population. Considering that biotechnological intervention could play important role in overcoming this limitation, the role of cytokinin in grain filling was investigated based on the information on cell proliferating potential of the hormone and reports of its high accumulation in immature seeds...
May 21, 2018: BMC Plant Biology
https://www.readbyqxmd.com/read/29780811/does-size-matter-to-models-exploring-the-effect-of-herd-size-on-outputs-of-a-herd-level-disease-spread-simulator
#11
Mary Van Andel, Tracey Hollings, Richard Bradhurst, Andrew Robinson, Mark Burgman, M Carolyn Gates, Paul Bingham, Tim Carpenter
Disease spread modeling is widely used by veterinary authorities to predict the impact of emergency animal disease outbreaks in livestock and to evaluate the cost-effectiveness of different management interventions. Such models require knowledge of basic disease epidemiology as well as information about the population of animals at risk. Essential demographic information includes the production system, animal numbers, and their spatial locations yet many countries with significant livestock industries do not have publically available and accurate animal population information at the farm level that can be used in these models...
2018: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29780174/cereal-progenitors-differ-in-stand-harvest-characteristics-from-related-wild-grasses
#12
Catherine Preece, Natalie F Clamp, Gemma Warham, Michael Charles, Mark Rees, Glynis Jones, Colin P Osborne
The domestication of crops in the Fertile Crescent began approximately 10,000 years ago indicating a change from a hunter-gatherer lifestyle to a sedentary, agriculture-based existence. The exploitation of wild plants changed during this transition, such that a small number of crops were domesticated from the broader range of species gathered from the wild. However, the reasons for this change are unclear.Previous studies have shown unexpectedly that crop progenitors are not consistently higher yielding than related wild grass species, when growing without competition...
May 2018: Journal of Ecology
https://www.readbyqxmd.com/read/29779248/analysis-of-intraspecific-seeds-diversity-in-astragalus-aquilanus-fabaceae-endemic-species-of-central-apennine
#13
V Di Cecco, M Di Musciano, A A D'Archivio, A R Frattaroli, L Di Martino
This work aims to study the seeds of the endemic species Astragalus aquilanus from four different populations of Central Italy. We investigated the seed morpho-colorimetric features (shape and size) and chemical differences (through infrared spectroscopy) among populations and between dark and light seeds. Seed morpho-colorimetric quantitative variables, describing shape, size and colour seed traits, were measured using image analysis techniques. Fourier transform infrared (FT-IR) spectroscopy was used to attempt seed chemical characterization...
May 20, 2018: Plant Biology
https://www.readbyqxmd.com/read/29778168/development-of-a-novel-myconanomining-approach-for-the-recovery-of-agriculturally-important-elements-from-jarosite-waste
#14
Ankita Bedi, Braj Raj Singh, Sunil K Deshmukh, Nisha Aggarwal, Colin J Barrow, Alok Adholeya
In this study, an ecofriendly and economically viable waste management approach have been attempted towards the biosynthesis of agriculturally important nanoparticles from jarosite waste. Aspergillus terreus strain J4 isolated from jarosite (waste from Debari Zinc Smelter, Udaipur, India), showed good leaching efficiency along with nanoparticles (NPs) formation under ambient conditions. Fourier-transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM) confirmed the formation of NPs...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29775316/l-arginine-catalyzed-synthesis-of-nanometric-organosilica-particles-through-a-waterborne-sol-gel-process-and-their-porous-structure-analysis
#15
Xiaoguang Qiao, Pierre-Yves Dugas, Laurent Veyre, Elodie Bourgeat-Lami
We report an efficient and easy to implement waterborne sol-gel process for the synthesis of nanometric organosilica particles. In this process, tetraethyl orthosilicate (TEOS) and 3-(methacryloxy)propyl trimethoxy silane (γ-MPS), employed as silica sources, are heterogeneously delivered in an aqueous solution of L-arginine, a basic amino acid used as catalyst, from a top organic layer. Co-condensation of TEOS with γ-MPS led to organosilica particles with diameters comprised between 30 and 230 nm when increasing the γ-MPS content from 0 to 10...
May 18, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29774082/hierarchical-shape-by-shape-assembly-of-microparticles-for-micrometer-scale-viral-delivery-of-two-different-genes
#16
Daewon Lee, Amos Chungwon Lee, Sangkwon Han, Hyung Jong Bae, Seo Woo Song, Yunjin Jeong, Dong Yoon Oh, Seongkyu Cho, Junhoi Kim, Wook Park, Sunghoon Kwon
Understanding tissue engineering using a bottom-up approach has been hindered by technical limitations because no platform can demonstrate the controlled formation of a heterogeneous population of cells in microscale. Here, we demonstrate hierarchical shape-by-shape assembly of virus-laden particles into larger ones to transfect two different genes on the seeded cells. We show that smaller daughter particles with different sizes and shapes can be assembled into the matching indentations of larger parent particles with different sizes and shapes...
May 2018: Biomicrofluidics
https://www.readbyqxmd.com/read/29773612/improved-draft-genome-sequence-of-a-monoteliosporic-culture-of-the-karnal-bunt-tilletia-indica-pathogen-of-wheat
#17
Anil Kumar, Pallavi Mishra, Ranjeet Maurya, A K Mishra, Vijai K Gupta, Pramod W Ramteke, Soma S Marla
Karnal bunt of wheat is an internationally quarantined fungal pathogen disease caused by Tilletia indica and affects the international commercial seed trade of wheat. We announce here the first improved draft genome assembly of a monoteliosporic culture of the Tilletia indica fungus, consisting of 787 scaffolds with an approximate total genome size of 31.83 Mbp, which is more accurate and near to complete than the previous version.
May 17, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29770258/local-higher-order-graph-clustering
#18
Hao Yin, Austin R Benson, Jure Leskovec, David F Gleich
Local graph clustering methods aim to find a cluster of nodes by exploring a small region of the graph. These methods are attractive because they enable targeted clustering around a given seed node and are faster than traditional global graph clustering methods because their runtime does not depend on the size of the input graph. However, current local graph partitioning methods are not designed to account for the higher-order structures crucial to the network, nor can they effectively handle directed networks...
August 2017: KDD: Proceedings
https://www.readbyqxmd.com/read/29768242/antibacterial-anticancer-and-antioxidant-potential-of-silver-nanoparticles-engineered-using-trigonella-foenum-graecum-seed-extract
#19
Shivangi Goyal, Nidhi Gupta, Ajeet Kumar, Sreemoyee Chatterjee, Surendra Nimesh
In this study, the authors report a simple and eco-friendly method for the synthesis of silver nanoparticles (AgNPs) using Trigonella foenum-graecum (TFG) seed extract. They explored several parameters dictating the biosynthesis of TFG-AgNPs such as reaction time, temperature, concentration of AgNO3 , and TFG extract amount. Physicochemical characterisation of TFG-AgNPs was done on dynamic light scattering (DLS), field emission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and Fourier transform infrared spectroscopy...
June 2018: IET Nanobiotechnology
https://www.readbyqxmd.com/read/29768221/optimised-synthesis-of-zno-nano-fertiliser-through-green-chemistry-boosted-growth-dynamics-of-economically-important-l-esculentum
#20
Nyla Jabeen, Qaisar Maqbool, Tahira Bibi, Mudassar Nazar, Syed Z Hussain, Talib Hussain, Tariq Jan, Ishaq Ahmad, Malik Maaza, Sadaf Anwaar
Mounting-up economic losses to annual crops yield due to micronutrient deficiency, fertiliser inefficiency and increasing microbial invasions (e.g. Xanthomonas cempestri attack on tomatoes) are needed to be solved via nano-biotechnology. So keeping this in view, the authors' current study presents the new horizon in the field of nano-fertiliser with highly nutritive and preservative effect of green fabricated zinc oxide-nanostructures (ZnO-NSs) during Lycopersicum esculentum (tomato) growth dynamics. ZnO-NS prepared via green chemistry possesses highly homogenous crystalline structures well-characterised through ultraviolet and visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscope...
June 2018: IET Nanobiotechnology
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