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https://www.readbyqxmd.com/read/28646778/the-hydrological-functioning-of-a-constructed-fen-wetland-watershed
#1
Scott J Ketcheson, Jonathan S Price, Owen Sutton, George Sutherland, Eric Kessel, Richard M Petrone
Mine reclamation requires the reconstruction of entire landforms and drainage systems. The hydrological regime of reclaimed landscapes will be a manifestation of the processes operating within the individual landforms that comprise it. Hydrology is the most important process regulating wetland function and development, via strong controls on chemical and biotic processes. Accordingly, this research addresses the growing and immediate need to understand the hydrological processes that operate within reconstructed landscapes following resource extraction...
June 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28646718/reduced-graphene-oxide-functionalized-feooh-for-signal-on-photoelectrochemical-sensing-of-prostate-specific-antigen-with-bioresponsive-controlled-release-system
#2
Qian Zhou, Youxiu Lin, Jian Shu, Kangyao Zhang, Zhenzhong Yu, Dianping Tang
A new and signal-on photoelectrochemical (PEC) sensing platform was successfully designed for the sensitive detection of prostate-specific antigen (PSA), using reduced graphene oxide- functionalized iron oxyhydroxide (FeOOH-rGO) as the photoactive material, accompanying target-responsive controlled release system to achieve the signal amplification. Introduction of rGO as electron mediator greatly facilitated the electron transfer from FeOOH to electrode under visible light, which inhibited the electron-hole recombination to enhance the photo-activity of FeOOH-rGO...
June 16, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28646693/antibacterial-effect-of-genetically-engineered-bacteriophage-%C3%AF-ef11-%C3%AF-fl1c-%C3%AE-36-p-nisa-on-dentin-infected-with-antibiotic-resistant-enterococcus-faecalis
#3
Justine Monnerat Tinoco, Nadia Liss, Hongming Zhang, Roni Nissan, Wanda Gordon, Eduardo Tinoco, Luciana Sassone, Roy Stevens
OBJECTIVE: Enterococcus faecalis is a gram-positive facultative anaerobic bacterium, which is present in 30-89% of teeth with postendodontic treatment failures. E. faecalis is capable of penetrating dentinal tubules and surviving as a monoculture after conventional endodontic therapy, indicating that it is resistant to commonly used endodontic disinfection protocols. Different E. faecalis strains have shown resistance to several antibiotics, and have been associated with both dental pathology and systemic infections...
June 12, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28646652/influenza-a-virus-cap-snatches-host-rnas-based-on-their-abundance-early-after-infection
#4
Dorota Sikora, Lynda Rocheleau, Earl G Brown, Martin Pelchat
The influenza A virus RNA polymerase cleaves the 5' ends of host RNAs and uses these RNA fragments as primers for viral mRNA synthesis. We performed deep sequencing of the 5' host-derived ends of the eight viral mRNAs of influenza A/Puerto Rico/8/1934 (H1N1) virus in infected A549 cells, and compared the population to those of A/Hong Kong/1/1968 (H3N2) and A/WSN/1933 (H1N1). In the three strains, the viral RNAs target different populations of host RNAs. Host RNAs are cap-snatched based on their abundance, and we found that RNAs encoding proteins involved in metabolism are overrepresented in the cap-snatched populations...
June 21, 2017: Virology
https://www.readbyqxmd.com/read/28646650/requirement-for-eukaryotic-translation-initiation-factors-in-cap-independent-translation-differs-between-bipartite-genomic-rnas-of-red-clover-necrotic-mosaic-virus
#5
Yuri Tajima, Hiro-Oki Iwakawa, Kiwamu Hyodo, Masanori Kaido, Kazuyuki Mise, Tetsuro Okuno
The bipartite genomic RNAs of red clover necrotic mosaic virus (RCNMV) lack a 5' cap and a 3' poly(A) tail. RNA1 encodes viral replication proteins, and RNA2 encodes a movement protein (MP). These proteins are translated in a cap-independent manner. We previously identified two cis-acting RNA elements that cooperatively recruit eukaryotic translation initiation factor (eIF) complex eIF4F or eIFiso4F to RNA1. Such cis-acting RNA elements and host factors have not been identified in RNA2. Here we found that translation of RNA1 was significantly compromised in Arabidopsis thaliana carrying eif4f mutation...
June 21, 2017: Virology
https://www.readbyqxmd.com/read/28646195/structural-alteration-of-a-bydv-like-translation-element-bte-that-attenuates-p35-expression-in-three-mild-tobacco-bushy-top-virus-isolates
#6
Deya Wang, Chengming Yu, Shanshan Liu, Guolu Wang, Kerong Shi, Xiangdong Li, Xuefeng Yuan
To identify the molecular effects of Tobacco bushy top virus (TBTV) evolution on the degeneration of tobacco bushy top disease, three TBTV isolates with mild virulence were compared with wild-type TBTV to assess the translation of p35, which relies on a BYDV-like translation element (BTE) in a cap-independent manner. The in vitro expression of p35 in the mild isolates was only 20% to 40% of the expression observed in wt TBTV. Based on translation data from chimeric TBTV RNA, low-level p35 expression in the three mild isolates was associated with two regions: the 5' terminal 500 nt region (RI) and the 3' internal region (RV), which included the BTE...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645686/relationship-between-cardiovascular-disease-and-dental-pathology-systematic-review
#7
REVIEW
Beatriz González Navarro, Xavier Pintó Sala, Enric Jané Salas
BACKGROUND AND OBJECTIVE: The relationship between atherothrombotic cardiovascular disease (ATCD) and localised infections in teeth, including caries and chronic apical periodontitis (CAP) has not been studied much and is not well defined. METHOD: A systematic search was performed using the scientific databases PubMed and Medline from 1989 to 2016. RESULTS: A significant relationship was observed with ATCD in 10 out of 10 studies addressing the degree of oral hygiene, in 14 of 17 that included loss of teeth, in 6 of 12 that analysed caries and in 11 of 15 that included CAP...
June 20, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28645637/antimicrobial-and-biological-activity-of-leachate-from-light-curable-pulp-capping-materials
#8
Maria Teresa Arias-Moliz, Cher Farrugia, Christie Y K Lung, Pierre Schembri Wismayer, Josette Camilleri
OBJECTIVES: Characterization of a number of pulp capping materials and assessment of the leachate for elemental composition, antimicrobial activity and cell proliferation and expression. METHODOLOGY: Three experimental light curable pulp-capping materials, Theracal and Biodentine were characterized by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. The elemental composition of the leachate formed after 24hours was assessed by inductively coupled plasma (ICP)...
June 20, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28645299/programming-of-mouse-obesity-by-maternal-exposure-to-concentrated-ambient-fine-particles
#9
Minjie Chen, Xiaoke Wang, Ziying Hu, Huifen Zhou, Yanyi Xu, Lianglin Qiu, Xiaobo Qin, Yuhao Zhang, Zhekang Ying
BACKGROUND: Many diseases including obesity may originate through alterations in the early-life environment that interrupts fetal development. Increasing evidence has shown that exposure to ambient fine particles (PM2.5) is associated with abnormal fetal development. However, its long-term metabolic effects on offspring have not been systematically investigated. RESULTS: To determine if maternal exposure to PM2.5 programs offspring obesity, female C57Bl/6j mice were exposed to filtered air (FA) or concentrated ambient PM2...
June 23, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28645033/acetic-acid-assisted-fabrication-of-hierarchical-flower-like-bi2o3-for-photocatalytic-degradation-of-sulfamethoxazole-and-rhodamine-b-under-solar-irradiation
#10
Yueping Bao, Teik-Thye Lim, Ziyi Zhong, Rong Wang, Xiao Hu
With the assistance of acetic acid (CH3COOH), a novel 3D flower-like Bi2O3 was synthesized via hydrothermal process followed by calcination. For the first time, the role of CH3COOH as a capping agent in the formation of flower-like structure was investigated. The as-prepared flower-like Bi2O3 had a high activity on the degradation of sulfamethoxazole (SMX) under simulated solar light irradiation due to the narrow band gap of 2.69eV, high percentage of β-Bi2O3 as well as high intensity of polar facets (120) and (200)...
May 23, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28644898/spatio-temporal-orientation-of-microtubules-controls-conical-cell-shape-in-arabidopsis-thaliana-petals
#11
Huibo Ren, Xie Dang, Xianzhi Cai, Peihang Yu, Yajun Li, Shanshan Zhang, Menghong Liu, Binqing Chen, Deshu Lin
The physiological functions of epidermal cells are largely determined by their diverse morphologies. Most flowering plants have special conical-shaped petal epidermal cells that are thought to influence light capture and reflectance, and provide pollinator grips, but the molecular mechanisms controlling conical cell shape remain largely unknown. Here, we developed a live-confocal imaging approach to quantify geometric parameters of conical cells in Arabidopsis thaliana (A.thaliana). Through genetic screens, we identified katanin (KTN1) mutants showing a phenotype of decreased tip sharpening of conical cells...
June 23, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28644067/border-cell-release-cell-separation-without-cell-wall-degradation
#12
Jozef Mravec
Plant border cells are specialised cells derived from the root cap with roles in the biomechanics of root growth and in forming a barrier against pathogens. The mechanism of highly localised cell separation which is essential for their release to the environment is little understood. Here I present in situ analysis of Brachypodium distachyon, a model organism for grasses which possess type II primary cell walls poor in pectin content. Results suggest similarity in spatial dynamics of pectic homogalacturonan during dicot and monocot border cell release...
June 23, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28644017/spectrally-undiscerned-isomers-might-lead-to-erroneous-determination-of-water-exchange-rates-of-paracest-eu-iii-agents
#13
Nevenka Cakić, Ben Tickner, Moritz Zaiss, David Esteban-Gómez, Carlos Platas-Iglesias, Goran Angelovski
We report a detailed study of the solution structure and water exchange rate of a Eu(III) complex with the cyclen-based ligand L(1), containing (S)-2-(2-acetamido)-3-(4-(trifluoromethyl)phenyl)propanoate pendant arms at positions 1 and 7 of the cyclen ring and acetylglycinate pendants at positions 4 and 10. The EuL(1) complex was characterized by a combination of NMR and luminescence spectroscopy and density functional theory (DFT) calculations. The chemical exchange saturation transfer (CEST) spectra obtained at different temperatures and saturation powers present a CEST signal attributed to the coordinated water molecule...
June 23, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28643740/telomere-length-variation-and-expression-analysis-of-shelterin-complex-genes-during-gallbladder-carcinogenesis
#14
Satish S Poojary, Gunja Mishra, Tekcham Dinesh Singh, Sanjiv Gupta, Braj Raj Shrivastav, Pramod Kumar Tiwari
BACKGROUND: Telomeres, which are bound with shelterin protein complex, play an important role in maintaining genomic stability and its dysfunction may lead to carcinogenesis. Here, we aimed to analyze whether shelterin complex gene expression and telomere length variation, play any role in gallbladder carcinogenesis. METHODS: Telomere length analysis was carried out by monochrome multiplex qPCR, whereas expression analysis of shelterin genes was carried out using RT-qPCR...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643484/international-organization-for-standardization-iso-15189
#15
REVIEW
Frank Schneider, Caroline Maurer, Richard C Friedberg
The College of American Pathologists (CAP) offers a suite of laboratory accreditation programs, including one specific to accreditation to the international organization for standardization (ISO) 15189 standard for quality management specific to medical laboratories. CAP leaders offer an overview of ISO 15189 including its components, internal audits, occurrence management, document control, and risk management. The authors provide a comparison of its own ISO 15189 program, CAP 15189, to the CAP Laboratory Accreditation Program...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28642695/concealed-around-the-ear-eeg-captures-cognitive-processing-in-a-visual-simon-task
#16
Marlene Pacharra, Stefan Debener, Edmund Wascher
In theory, miniaturized systems such as the around-the-ear electrode arrays (cEEGrids) enable mobile monitoring of the electroencephalogram (EEG) in a variety of real life situations without interfering with the natural setting. However, the research benefit of such cEEGrid recordings critically depends on their validity. To investigate whether visual and motor processing are reflected in the cEEGrid-EEG, a direct comparison of EEG that was concurrently recorded with the cEEGrids and with a high-density cap setup was conducted...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28642679/assessment-of-ipsilateral-efferent-effects-in-human-via-ecochg
#17
Eric Verschooten, Elizabeth A Strickland, Nicolas Verhaert, Philip X Joris
Development of electrophysiological means to assess the medial olivocochlear (MOC) system in humans is important to further our understanding of the function of that system and for the refinement and validation of psychoacoustical and otoacoustic emission methods which are thought to probe the MOC. Based on measurements in anesthetized animals it has been hypothesized that the MOC-reflex (MOCR) can enhance the response to signals in noise, and several lines of evidence support such a role in humans. A difficulty in these studies is the isolation of efferent effects...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28642367/the-activities-of-the-c-terminal-regions-of-the-formin-protein-disheveled-associated-activator-of-morphogenesis-daam-in-actin-dynamics
#18
Andrea Teréz Vig, István Földi, Szilárd Szikora, Ede Migh, Rita Gombos, Mónika Ágnes Tóth, Tamás Huber, Réka Pintér, Gábor Csaba Talián, József Mihály, Beáta Bugyi
Disheveled-associated activator of morphogenesis (DAAM) is a diaphanous-related formin protein essential for the regulation of actin cytoskeleton dynamics in diverse biological processes. The conserved formin homology 1 and 2 (FH1-FH2) domains of DAAM catalyze actin nucleation and processively mediate filament elongation. These activities are indirectly regulated by the N-, and C-terminal regions flanking the FH1-FH2 domains. Recently, the C-terminal diaphanous-autoregulatory domain (DAD) and the C-terminus (CT) of formins have also been shown to regulate actin assembly by directly interacting with actin...
June 22, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28642174/elevated-scd40l-mmp-9-and-mmp-2-is-associated-with-carotid-plaque-vulnerability-in-patients-with-ischemic-cerebrovascular-disease
#19
Yipeng Han, Xiang Mao, Lijun Wang, Jiachun Liu, Daming Wang, Hongwei Cheng, Guozhuan Miao
OBJECTIVES: The objectives of this study were to examine the correlation between the level of serum inflammatory markers and the stability of carotid plaques in patients with ischemic cerebrovascular disease and to assess the ability of each inflammatory marker to identify vulnerable carotid plaques. METHODS: for the Early Identification of Vulnerable Carotid Plaques Sixty-five patients with carotid plaques were divided into a stable plaque group (n = 21) and an unstable plaque group (n = 44) according to MRI characteristics...
June 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28642068/chloramphenicol-decreases-cb1-receptor-expression-in-the-nucleus-accumbens-and-prefrontal-cortex-and-prevents-amphetamine-induced-conditioned-place-preference-in-rats
#20
Octavio Amancio-Belmont, Diego Pérez-Vázquez, Alejandra E Ruiz-Contreras, Miguel Pérez de la Mora, Pavel E Rueda-Orozco, Mónica Méndez-Díaz, Oscar E Prospero-Garcia
Drug dependence seems to involve a learning and memory process. Since learning and memory depend on protein synthesis, drug dependence may depend on protein synthesis, too. Drug-induced reward is a crucial effect for the development of drug-dependence. We used chloramphenicol (CAP, a protein synthesis inhibitor), to evaluate its effects on amphetamine (amph)-seeking behavior, on CB1R expression and on protein synthesis in general, in specific areas of the brain. Two groups of Wistar adult male rats were subjected to amph-induced conditioned place preference (CPP)...
June 19, 2017: Pharmacology, Biochemistry, and Behavior
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