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https://www.readbyqxmd.com/read/28231506/plant-chromium-uptake-and-transport-physiological-effects-and-recent-advances-in-molecular-investigations
#1
REVIEW
Maria Angélica da Conceição Gomes, Rachel Ann Hauser-Davis, Marina Satika Suzuki, Angela Pierre Vitória
Increasingly, anthropogenic perturbations of the biosphere manifest in a broad array of global phenomena, causing widespread contamination of most ecosystems, with high dispersion rates of many contaminants throughout different environmental compartments, including metals. Chromium (Cr) contamination in particular, is, increasingly, posing a serious threat to the environment, emerging as a major health hazard to the biota. However, although the molecular and physiological mechanisms of plant responses to many heavy metals, especially lead (Pb) and cadmium (Cd), have been focused upon in recent years, chromium has attracted significantly less attention...
February 20, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28231471/pathogenic-potential-and-virulence-genotypes-of-intestinal-and-faecal-isolates-of-porcine-post-weaning-enteropathogenic-escherichia-coli
#2
Anna Malik, Béla Nagy, Renáta Kugler, Ama Szmolka
Enteropathogenic Escherichia coli (EPEC) are frequent causes of diarrhoea in infants and in young mammals by inducing attaching effacing (AE) lesions of the intestinal epithelium. EPEC bacteria have also been implicated in cases of porcine post-weaning diarrhoea but their pathogenicity for conventional weaned pigs remains less elucidated. This present study investigates differences in pathogenic potential and virulence genotypes of intestinal and faecal isolates of EPEC from newly-weaned pigs. For this we inoculated ligated ileal loops of four weeks old weaned pigs to assess EPEC adherence to enterocytes by histology and immunohistology...
February 9, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28231461/tips-for-young-scientists-on-the-junior-faculty-independent-investigator-job-search
#3
Kelsey C Martin
Landing a job as an assistant professor or independent investigator in neuroscience in an academic institution or research institute depends on the accomplishments young scientists make during years of training as graduate students and postdoctoral fellows. This training prepares scientists for an array of exciting job opportunities, one of which is as a faculty member or independent investigator. My goal in this NeuroView is to provide tips about the job search for young scientists who have decided to enter the junior faculty/independent investigator job market...
February 22, 2017: Neuron
https://www.readbyqxmd.com/read/28231414/mir-135a-3p-as-a-promising-biomarker-and-nucleic-acid-therapeutic-agent-for-ovarian-cancer
#4
Satoshi Fukagawa, Kohei Miyata, Fusanori Yotsumoto, Chihiro Kiyoshima, Sung Ouk Nam, Haruchika Anan, Takahiro Katsuda, Daisuke Miyahara, Masaharu Murata, Hiroshi Yagi, Kyoko Shirota, Shin'ichiro Yasunaga, Kiyoko Kato, Shingo Miyamoto
Ovarian cancer is the most lethal gynecologic malignancy. Recently, several molecularly targeted anticancer agents have been developed for ovarian cancer; however, its prognosis has remained extremely poor. The development of molecularly targeted therapy, as well as companion diagnostics, is required to improve outcomes for patients with ovarian cancer. In this study, to identify microRNAs involved in the progression of ovarian cancer we analyzed serum microRNAs in patients with ovarian cancer using microRNA array and qRT-PCR and examined the anticancer properties of microRNA expression in ovarian cancer cells...
February 23, 2017: Cancer Science
https://www.readbyqxmd.com/read/28231382/accurate-measurement-of-transgene-copy-number-in-crop-plants-using-droplet-digital-pcr
#5
Ray Collier, Kasturi Dasgupta, Yan-Ping Xing, Bryan Tarape Hernandez, Min Shao, Dominica Rohozinski, Emma Kovak, Jeanie Lin, Maria Luiza P de Oliveira, Ed Stover, Kent F McCue, Frank G Harmon, Ann Blechl, James G Thomson, Roger Thilmony
Genetic transformation is a powerful means for the improvement of crop plants, but requires labor and resource intensive methods. An efficient method for identifying single copy transgene insertion events from a population of independent transgenic lines is desirable. Currently transgene copy number is estimated by either Southern blot hybridization analyses or quantitative polymerase chain reaction (qPCR) experiments. Southern hybridization is a convincing and reliable method, but it also is expensive, time-consuming and often requires a large amount of genomic DNA and radioactively labeled probes...
February 23, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28231327/functionally-focused-algorithmic-analysis-of-high-resolution-microarray-cgh-genomic-landscapes-demonstrates-comparable-genomic-copy-number-aberrations-in-msi-and-mss-sporadic-colorectal-cancer
#6
Hamad Ali, Milad S Bitar, Ashraf Al Madhoun, Makia Marafie, Fahd Al-Mulla
Array-based comparative genomic hybridization (aCGH) emerged as a powerful technology for studying copy number variations at higher resolution in many cancers including colorectal cancer. However, the lack of standardized systematic protocols including bioinformatic algorithms to obtain and analyze genomic data resulted in significant variation in the reported copy number aberration (CNA) data. Here, we present genomic aCGH data obtained using highly stringent and functionally relevant statistical algorithms from 116 well-defined microsatellites instable (MSI) and microsatellite stable (MSS) colorectal cancers...
2017: PloS One
https://www.readbyqxmd.com/read/28231309/improving-molecular-diagnosis-of-aniridia-and-wagr-syndrome-using-customized-targeted-array-based-cgh
#7
Fiona Blanco-Kelly, María Palomares, Elena Vallespín, Cristina Villaverde, Rubén Martín-Arenas, Camilo Vélez-Monsalve, Isabel Lorda-Sánchez, Julián Nevado, María José Trujillo-Tiebas, Pablo Lapunzina, Carmen Ayuso, Marta Corton
Chromosomal deletions at 11p13 are a frequent cause of congenital Aniridia, a rare pan-ocular genetic disease, and of WAGR syndrome, accounting up to 30% of cases. First-tier genetic testing for newborn with aniridia, to detect 11p13 rearrangements, includes Multiplex Ligation-dependent Probe Amplification (MLPA) and karyotyping. However, neither of these approaches allow obtaining a complete picture of the high complexity of chromosomal deletions and breakpoints in aniridia. Here, we report the development and validation of a customized targeted array-based comparative genomic hybridization, so called WAGR-array, for comprehensive high-resolution analysis of CNV in the WAGR locus...
2017: PloS One
https://www.readbyqxmd.com/read/28231299/exploration-of-inhibitory-mechanisms-of-curcumin-in-lung-cancer-metastasis-using-a-mirna-transcription-factor-target-gene-network
#8
De-Min Jiao, Li Yan, Li-Shan Wang, Hui-Zhen Hu, Xia-Li Tang, Jun Chen, Jian Wang, You Li, Qing-Yong Chen
The present study was aimed to unravel the inhibitory mechanisms of curcumin for lung cancer metastasis via constructing a miRNA-transcription factor (TF)-target gene network. Differentially expressed miRNAs between human high-metastatic non-small cell lung cancer 95D cells treated with and without curcumin were identified using a TaqMan human miRNA array followed by real-time PCR, out of which, the top 6 miRNAs (miR-302b-3p, miR-335-5p, miR-338-3p, miR-34c-5p, miR-29c-3p and miR-34a-35p) with more verified target genes and TFs than other miRNAs as confirmed by a literature review were selected for further analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28231261/a-natural-user-interface-to-integrate-citizen-science-and-physical-exercise
#9
Eduardo Palermo, Jeffrey Laut, Oded Nov, Paolo Cappa, Maurizio Porfiri
Citizen science enables volunteers to contribute to scientific projects, where massive data collection and analysis are often required. Volunteers participate in citizen science activities online from their homes or in the field and are motivated by both intrinsic and extrinsic factors. Here, we investigated the possibility of integrating citizen science tasks within physical exercises envisaged as part of a potential rehabilitation therapy session. The citizen science activity entailed environmental mapping of a polluted body of water using a miniature instrumented boat, which was remotely controlled by the participants through their physical gesture tracked by a low-cost markerless motion capture system...
2017: PloS One
https://www.readbyqxmd.com/read/28231162/phenolic-pro%C3%AF-le-and-antioxidant-activity-of-melon-cucumis-melo-l-seeds-from-pakistan
#10
Alam Zeb
Phenolic composition of different extracts of honeydew melon seeds and their antioxidant activity was determined for the first time. Phenolic compounds were identified using a reversed phase high performance liquid chromatography with diode array detection (HPLC-DAD) method. Results showed the identification of five phenolic compounds in water extract namely gallic acid and its derivative, hydroxybenzoic acid and catechin derivatives and caffeic acid.There were nine phenolic compounds identified in methanol-water extract, which are caffeic acid, two vanillic acid derivatives, ellagitanins, quercetin-3-rutinoside, derivatives of syringic acid and ellagic acid...
October 17, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231141/determination-of-volatiles-by-odor-activity-value-and-phenolics-of-cv-ayvalik-early-harvest-olive-oil
#11
Gamze Guclu, Onur Sevindik, Hasim Kelebek, Serkan Selli
Ayvalik is an important olive cultivar producing high quality oils in Turkey. In the present study, volatile and phenolic compositions of early-harvest extra virgin olive oil (cv. Ayvalik) were determined. The solvent-assisted flavor evaporation (SAFE) technique was used for the extraction of volatile components. The aromatic extract obtained by SAFE was representative of the olive oil odor. A total of 32 aroma compounds, including alcohols, aldehydes, terpenes, esters, and an acid, were identified in the olive oil...
June 24, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231011/ultrahigh-responsivity-photodetectors-from-perovskite-nanowire-arrays-for-sequentially-tunable-spectral-measurement
#12
Wei Deng, Liming Huang, Xiuzhen Xu, Xiujuan Zhang, Xiangcheng Jin, Shuit-Tong Lee, Jiansheng Jie
Compared with polycrystalline films, single-crystalline methylammonium lead halide (MAPbX3, X = halogen) perovskite nanowires (NWs) with well-defined structure possess superior optoelectronic properties for optoelectronic applications. However, most of the prepared perovskite NWs exhibit properties below expectations due to poor crystalline quality and rough surfaces. It also remains a challenge to achieve aligned growth of single-crystalline perovskite NWs for integrated device applications. Here, we report a facile fluid-guided anti-solvent vapor-assisted crystallization (FGAVC) method for large-scale fabrication of high-quality single-crystalline MAPb(I1-xBrx)3 (X = 0, 0...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28230773/programmed-death-ligand-1-pd-l1-tumor-expression-is-associated-with-a-better-prognosis-and-diabetic-disease-in-triple-negative-breast-cancer-patients
#13
Gerardo Botti, Francesca Collina, Giosuè Scognamiglio, Federica Rao, Valentina Peluso, Rossella De Cecio, Michela Piezzo, Gabriella Landi, Michelino De Laurentiis, Monica Cantile, Maurizio Di Bonito
Triple Negative Breast Cancers (TNBC) subtype is an aggressive disease with poor clinical outcome. The only treatment available is surgery followed by chemotherapy or radiotherapy. Programmed death-ligand 1 (PD-L1) is a trans-membrane protein expressed on a wide variety of cells including immune cells, epithelial and vascular endothelial cells. Recently, PD-1/PD-L1 pathway signaling was described as an adaptive immune resistance mechanism enacted by the tumor cells to evade the immune response. Its presence on tumor cell membranes, acquired for this reason, through time, is an important prognostic value...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230537/core-shell-znco2o4-tio2-nanowall-array-as-an-anode-for-li-ion-batteries
#14
Wei Shi, Haitao Zhao, Bingan Lu
In this paper, ZnCo2O4 nanowall arrays were firstly obtained through self-assembly followed by calcination. Then atomic layer deposition was used to fabricate core-shell ZnCo2O4@TiO2 nanowall arrays (NWAs) as anode materials for lithium ion batteries (LIBs). The hierarchical nanowall array nanostructure with fast ion diffusion and electron transport at electrode/electrolyte interface, while the shell of TiO2 with excellent chemical stability can protect the ZnCo2O4 nanowall arrays from volume expansion during charge and discharge processes...
February 23, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28230487/pathology-goes-3d-exploring-the-potential-of-array-tomography-versus-fib-nanotomography-for-a-cadasil-sample
#15
Irene Wacker, Rasmus R Schröder, Josef A Schroeder
No abstract text is available yet for this article.
January 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28230340/all-inkjet-printed-metal-oxide-thin-film-transistor-array-with-good-stability-and-uniformity-using-surface-energy-patterns
#16
Yuzhi Li, Linfeng Lan, Sheng Sun, Zhenguo Lin, Peixiong Gao, Wei Song, Erlong Song, Peng Zhang, Junbiao Peng
An array of inkjet-printed metal-oxide thin-film transistors (TFTs) is demonstrated for the first time with the assistance of surface-energy patterns prepared by printing pure solvent to etch the ultrathin hydrophobic layer. The surface-energy patterns not only restrained the spreading of inks but also provided a facile way to regulate the morphology of metal oxide films without optimizing ink formulation. The fully printed InGaO TFT devices in the array exhibited excellent electron transport characteristics with a maximum mobility of 11...
February 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28229954/nano-cone-resistive-memory-for-ultralow-power-operation
#17
Sungjun Kim, Sunghun Jung, Min-Hwi Kim, Tae-Hyeon Kim, Suhyung Bang, Seongjae Cho, Byung-Gook Park
SiN x -based nano-structure resistive memory is fabricated by fully silicon CMOS compatible process integration including particularly designed anisotropic etching for the construction of a nano-cone silicon bottom electrode (BE). Bipolar resistive switching characteristics have significantly reduced switching current and voltage and are demonstrated in a nano-cone BE structure, as compared with those in a flat BE one. We have verified by systematic device simulations that the main cause of reduction in the performance parameters is the high electric field being more effectively concentrated at the tip of the cone-shaped BE...
February 23, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28229933/nuclear-lamins-and-progerin-are-dispensable-for-antioxidant-nrf2-response-to-arsenic-and-cadmium
#18
Kazunori Hashimoto, Rima Majumdar, Yoshiaki Tsuji
Lamins are important constituents of the nuclear inner membrane and provide a platform for transcription factors and chromatin. Progerin, a C-terminal truncated lamin A mutant, causes premature aging termed Hutchinson-Gilford Progeria Syndrome (HGPS). Oxidative stress appears to be involved in the pathogenesis of HGPS, although the mechanistic role of progerin remains elusive. Here we examined whether nuclear lamins are important for a cellular antioxidant mechanism, and whether progerin compromises it. We investigated the activation of nuclear factor-E2-related factor 2 (Nrf2) which regulates various antioxidant genes including heme oxygenase-1 (HMOX1), following exposure to sodium arsenite or cadmium chloride in lamin knockdown human cell lines and primary HGPS human fibroblasts...
February 14, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28229319/a-review-of-the-structure-and-dynamics-of-nanoconfined-water-and-ionic-liquids-via-molecular-dynamics-simulation
#19
REVIEW
Masumeh Foroutan, S Mahmood Fatemi, Farshad Esmaeilian
During the past decade, the research on fluids in nanoconfined geometries has received considerable attention as a consequence of their wide applications in different fields. Several nanoconfined systems such as water and ionic liquids, together with an equally impressive array of nanoconfining media such as carbon nanotube, graphene and graphene oxide have received increasingly growing interest in the past years. Water is the first system that has been reviewed in this article, due to its important role in transport phenomena in environmental sciences...
February 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28229280/posterior-urethral-valve-in-fetuses-evidence-for-the-role-of-inflammatory-molecules
#20
Érica Leandro Marciano Vieira, Natalia Pessoa Rocha, Fernando Macedo Bastos, Kátia Daniela da Silveira, Alamanda K Pereira, Eduardo Araújo Oliveira, Débora Marques de Miranda, Ana Cristina Simões E Silva
BACKGROUND: The aim of this cross-sectional study was to investigate inflammatory biomarkers in urine samples of 24 fetuses with posterior urethral valve (PUV) collected at 22 ± 4 weeks of gestation and to compare the findings with measurements in urine samples of 22 male healthy preterm neonates at 23 ± 4 weeks (control group). METHODS: Inflammatory biomarkers in urine were measured using a cytometric bead array [interleukin (IL)-2, IL-4, IL-6, IL-10, interferon (IFN)-γ, soluable tumor necrosis factor receptor (TNFR) 1, sTNFR2, monocyte chemoattractant protein-1/chemokine ligand 2 (MCP-1/CCL2), eotaxin/CCL11 and interferon gamma-induced protein/10/C-X-C motif chemokine 10 (IP-10/CXCL10)] and ELISA assays [TNF, IL-8/CXCL8 and transforming growth factor-beta (TGF-β)]...
February 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
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