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https://www.readbyqxmd.com/read/28445987/context-dependent-mir-204-and-mir-211-affect-the-biological-properties-of-amelanotic-and-melanotic-melanoma-cells
#1
Marianna Vitiello, Andrea Tuccoli, Romina D'Aurizio, Samanta Sarti, Laura Giannecchini, Simone Lubrano, Andrea Marranci, Monica Evangelista, Silvia Peppicelli, Chiara Ippolito, Ivana Barravecchia, Elena Guzzolino, Valentina Montagnani, Michael Gowen, Elisa Mercoledi, Alberto Mercatanti, Laura Comelli, Salvatore Gurrieri, Lawrence W Wu, Omotayo Ope, Keith Flaherty, Genevieve M Boland, Marc R Hammond, Lawrence Kwong, Mario Chiariello, Barbara Stecca, Gao Zhang, Alessandra Salvetti, Debora Angeloni, Letizia Pitto, Lido Calorini, Giovanna Chiorino, Marco Pellegrini, Meenhard Herlyn, Iman Osman, Laura Poliseno
Despite increasing amounts of experimental evidence depicting the involvement of non-coding RNAs in cancer, the study of BRAFV600E-regulated genes has thus far focused mainly on protein-coding ones. Here, we identify and study the microRNAs that BRAFV600E regulates through the ERK pathway.By performing small RNA sequencing on A375 melanoma cells and a vemurafenib-resistant clone that was taken as negative control, we discover miR-204 and miR-211 as the miRNAs most induced by vemurafenib. We also demonstrate that, although belonging to the same family, these two miRNAs have distinctive features...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445834/light-harvesting-antenna-complexes-in-the-moss-physcomitrella-patens-implications-for-the-evolutionary-transition-from-green-algae-to-land-plants
#2
REVIEW
Masakazu Iwai, Makio Yokono
Plants have successfully adapted to a vast range of terrestrial environments during their evolution. To elucidate the evolutionary transition of light-harvesting antenna proteins from green algae to land plants, the moss Physcomitrella patens is ideally placed basally among land plants. Compared to the genomes of green algae and land plants, the P. patens genome codes for more diverse and redundant light-harvesting antenna proteins. It also encodes Lhcb9, which has characteristics not found in other light-harvesting antenna proteins...
April 23, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28445829/the-role-of-peu-mir164-and-its-target-penac-genes-in-response-to-abiotic-stress-in-populus-euphratica
#3
Xin Lu, Hui Dun, Conglong Lian, Xiaofei Zhang, Weilun Yin, Xinli Xia
Plant miR164 family is highly conserved and miR164 members regulate conserved targets belonging to NAC transcription factors. Our previous studies have revealed that peu-miR164a-e and its target gene POPTR_0007s08420 participate in abiotic stress response in Populus euphratica according to deep sequencing and degradome sequencing. In this study, miR164 family comprises six members that generate two mature products (miR164a-e and miR164f) and target seven NAC genes in P. euphratica. Co-expression in Nicotiana benthamiana and 5' RACE confirmed that peu-miR164 directs PeNAC070, PeNAC012 and PeNAC028 mRNAs cleavage...
April 8, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28445823/engineering-metal-hydr-oxide-sorbents-for-removal-of-arsenate-and-similar-weak-acid-oxyanion-contaminants-a-critical-review-with-emphasis-on-factors-governing-sorption-processes
#4
Kiril D Hristovski, Jasmina Markovski
To create an integrative foundation for engineering of the next generation inexpensive sorbent systems, this critical review addresses the existing knowledge gap in factor/performance relationships between weak-acid oxyanion contaminants and metal (hydr)oxide sorbents. In-depth understanding of fundamental thermodynamics and kinetics mechanisms, material fabrication, and analytical and characterization techniques, is necessary to engineer sorbent that exhibit high capacity, selectivity, stability, durability and mass transport of contaminants under a wide range of operating and water matrix conditions requirements...
April 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28445813/microfluidic-integrated-patterned-ito-immunosensor-for-rapid-detection-of-prostate-specific-membrane-antigen-biomarker-in-prostate-cancer
#5
Rajesh Seenivasan, Chandra K Singh, Jay W Warrick, Nihal Ahmad, Sundaram Gunasekaran
An optically transparent patterned indium tin oxide (ITO) three-electrode sensor integrated with a microfluidic channel was designed for label-free immunosensing of prostate-specific membrane antigen (PSMA), a prostate cancer (PCa) biomarker, expressed on prostate tissue and circulating tumor cells but also found in serum. The sensor relies on cysteamine capped gold nanoparticles (N-AuNPs) covalently linked with anti-PSMA antibody (Ab) for target specificity. A polydimethylsiloxane (PDMS) microfluidic channel is used to efficiently and reproducibly introduce sample containing soluble proteins/cells to the sensor...
April 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28445723/mosquitoes-transmit-unique-west-nile-virus-populations-during-each-feeding-episode
#6
Nathan D Grubaugh, Joseph R Fauver, Claudia Rückert, James Weger-Lucarelli, Selene Garcia-Luna, Reyes A Murrieta, Alex Gendernalik, Darci R Smith, Doug E Brackney, Gregory D Ebel
Arthropod-borne viruses (arboviruses), such as Zika virus, chikungunya virus, and West Nile virus (WNV), pose continuous threats to emerge and cause large epidemics. Often, these events are associated with novel virus variants optimized for local transmission that first arise as minorities within a host. Thus, the conditions that regulate the frequency of intrahost variants are important determinants of emergence. Here, we describe the dynamics of WNV genetic diversity during its transmission cycle. By temporally sampling saliva from individual mosquitoes, we demonstrate that virus populations expectorated by mosquitoes are highly diverse and unique to each feeding episode...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445638/antigenic-gm3-lactone-mimetic-molecule-integrated-mannosylated-glycopeptide-nanofibers-for-the-activation-and-maturation-of-dendritic-cells
#7
Gokhan Gunay, Melis Sardan Ekiz, Xhenti Ferhati, Barbara Richichi, Cristina Nativi, Ayse Begum Tekinay, Mustafa O Guler
The ability of dendritic cells to coordinate innate and adaptive immune responses makes them essential targets for vaccination strategies. Presentation of specific antigens by dendritic cells is required for the activation of the immune system against many pathogens, and nanoscale materials can be functionalized for active targeting of dendritic cells. In this work, we integrated an immunogenic, carbohydrate melanoma-associated antigen-mimetic GM3-lactone molecule into mannosylated peptide amphiphile nanofibers to target dendritic cells through DC-SIGN receptor...
April 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28445544/pressure-flaking-to-serrate-bifacial-points-for-the-hunt-during-the-mis5-at-sibudu-cave-south-africa
#8
Veerle Rots, Carol Lentfer, Viola C Schmid, Guillaume Porraz, Nicholas J Conard
Projectile technology is considered to appear early in the southern African Middle Stone Age (MSA) and the rich and high resolution MSA sequence of Sibudu Cave in KwaZulu-Natal has provided many new insights about the use and hafting of various projectile forms. We present the results of a functional and technological analysis on a series of unpublished serrated bifacial points recently recovered from the basal deposits of Sibudu Cave. These serrated tools, which only find equivalents in the neighbouring site of Umhlatuzana, precede the Still Bay techno-complex and are older than 77 ka BP...
2017: PloS One
https://www.readbyqxmd.com/read/28445543/comparative-genomic-analysis-between-corynebacterium-pseudotuberculosis-strains-isolated-from-buffalo
#9
Marcus Vinicius Canário Viana, Henrique Figueiredo, Rommel Ramos, Luis Carlos Guimarães, Felipe Luiz Pereira, Fernanda Alves Dorella, Salah Abdel Karim Selim, Mohammad Salaheldean, Artur Silva, Alice R Wattam, Vasco Azevedo
Corynebacterium pseudotuberculosis is a Gram-positive, pleomorphic, facultative intracellular pathogen that causes Oedematous Skin Disease (OSD) in buffalo. To better understand the pathogenic mechanisms of OSD, we performed a comparative genomic analysis of 11 strains of C. pseudotuberculosis isolated from different buffalo found to be infected in Egypt during an outbreak that occurred in 2008. Sixteen previously described pathogenicity islands (PiCp) were present in all of the new buffalo strains, but one of them, PiCp12, had an insertion that contained both a corynephage and a diphtheria toxin gene, both of which may play a role in the adaptation of C...
2017: PloS One
https://www.readbyqxmd.com/read/28445535/microrna-125a-3p-is-regulated-by-myd88-in-legionella-pneumophila-infection-and-targets-ntan1
#10
Elisa Jentho, Malena Bodden, Christine Schulz, Anna-Lena Jung, Kerstin Seidel, Bernd Schmeck, Wilhelm Bertrams
BACKGROUND: Legionella pneumophila (L. pneumophila) is a causative agent of severe pneumonia. It is highly adapted to intracellular replication and manipulates host cell functions like vesicle trafficking and mRNA translation to its own advantage. However, it is still unknown to what extent microRNAs (miRNAs) are involved in the Legionella-host cell interaction. METHODS: WT and MyD88-/- murine bone marrow-derived macrophages (BMM) were infected with L. pneumophila, the transcriptome was analyzed by high throughput qPCR array (microRNAs) and conventional qPCR (mRNAs), and mRNA-miRNA interaction was validated by luciferase assays with 3´-UTR mutations and western blot...
2017: PloS One
https://www.readbyqxmd.com/read/28445533/influence-of-temperature-on-daily-locomotor-activity-in-the-crab-uca-pugilator
#11
Audrey M Mat, Gideon P Dunster, Valerio Sbragaglia, Jacopo Aguzzi, Horacio O de la Iglesia
Animals living in the intertidal zone are exposed to prominent temperature changes. To cope with the energetic demands of environmental thermal challenges, ectotherms rely mainly on behavioral responses, which may change depending on the time of the day and seasonally. Here, we analyze how temperature shapes crabs' behavior at 2 different times of the year and show that a transition from constant cold (13.5°C) to constant warm (17.5°C) water temperature leads to increased locomotor activity levels throughout the day in fiddler crabs (Uca pugilator) collected during the summer...
2017: PloS One
https://www.readbyqxmd.com/read/28445530/computation-of-adherence-to-medication-and-visualization-of-medication-histories-in-r-with-adherer-towards-transparent-and-reproducible-use-of-electronic-healthcare-data
#12
Alexandra Lelia Dima, Dan Dediu
Adherence to medications is an important indicator of the quality of medication management and impacts on health outcomes and cost-effectiveness of healthcare delivery. Electronic healthcare data (EHD) are increasingly used to estimate adherence in research and clinical practice, yet standardization and transparency of data processing are still a concern. Comprehensive and flexible open-source algorithms can facilitate the development of high-quality, consistent, and reproducible evidence in this field. Some EHD-based clinical decision support systems (CDSS) include visualization of medication histories, but this is rarely integrated in adherence analyses and not easily accessible for data exploration or implementation in new clinical settings...
2017: PloS One
https://www.readbyqxmd.com/read/28445522/revealing-phenotype-associated-functional-differences-by-genome-wide-scan-of-ancient-haplotype-blocks
#13
Ritsuko Onuki, Rui Yamaguchi, Tetsuo Shibuya, Minoru Kanehisa, Susumu Goto
Genome-wide scans for positive selection have become important for genomic medicine, and many studies aim to find genomic regions affected by positive selection that are associated with risk allele variations among populations. Most such studies are designed to detect recent positive selection. However, we hypothesize that ancient positive selection is also important for adaptation to pathogens, and has affected current immune-mediated common diseases. Based on this hypothesis, we developed a novel linkage disequilibrium-based pipeline, which aims to detect regions associated with ancient positive selection across populations from single nucleotide polymorphism (SNP) data...
2017: PloS One
https://www.readbyqxmd.com/read/28445519/the-effect-of-atomoxetine-on-random-and-directed-exploration-in-humans
#14
Christopher M Warren, Robert C Wilson, Nic J van der Wee, Eric J Giltay, Martijn S van Noorden, Jonathan D Cohen, Sander Nieuwenhuis
The adaptive regulation of the trade-off between pursuing a known reward (exploitation) and sampling lesser-known options in search of something better (exploration) is critical for optimal performance. Theory and recent empirical work suggest that humans use at least two strategies for solving this dilemma: a directed strategy in which choices are explicitly biased toward information seeking, and a random strategy in which decision noise leads to exploration by chance. Here we examined the hypothesis that random exploration is governed by the neuromodulatory locus coeruleus-norepinephrine system...
2017: PloS One
https://www.readbyqxmd.com/read/28445477/mitochondrial-respiration-in-highly-aerobic-canines-in-the-non-raced-state-and-after-a-1600-km-sled-dog-race
#15
Benjamin Miller, Karyn Hamilton, Robert Boushel, Katherine Williamson, Verena Laner, Erich Gnaiger, Michael Davis
At the annual Iditarod Race, Alaskan Huskies repeatedly run for up to 8 hours at 16 km/h to complete 1600 km. We previously demonstrated high rates of mitochondrial protein synthesis in Alaskan Huskies, which we suspected allowed rapid remodeling of mitochondrial proteins in response to energetic stress. The purpose of this study was to examine mitochondrial respiration in permeabilized skeletal muscle fibers of Alaskan Huskies in the offseason (Non-raced) and following the 1600 km Iditarod Sled Dog Race (Raced)...
2017: PloS One
https://www.readbyqxmd.com/read/28445434/an-adaptive-clustering-approach-based-on-minimum-travel-route-planning-for-wireless-sensor-networks-with-a-mobile-sink
#16
Jiqiang Tang, Wu Yang, Lingyun Zhu, Dong Wang, Xin Feng
In recent years, Wireless Sensor Networks with a Mobile Sink (WSN-MS) have been an active research topic due to the widespread use of mobile devices. However, how to get the balance between data delivery latency and energy consumption becomes a key issue of WSN-MS. In this paper, we study the clustering approach by jointly considering the Route planning for mobile sink and Clustering Problem (RCP) for static sensor nodes. We solve the RCP problem by using the minimum travel route clustering approach, which applies the minimum travel route of the mobile sink to guide the clustering process...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28445398/consensus-based-cooperative-control-based-on-pollution-sensing-and-traffic-information-for-urban-traffic-networks
#17
Antonio Artuñedo, Raúl M Del Toro, Rodolfo E Haber
Nowadays many studies are being conducted to develop solutions for improving the performance of urban traffic networks. One of the main challenges is the necessary cooperation among different entities such as vehicles or infrastructure systems and how to exploit the information available through networks of sensors deployed as infrastructures for smart cities. In this work an algorithm for cooperative control of urban subsystems is proposed to provide a solution for mobility problems in cities. The interconnected traffic lights controller (TLC) network adapts traffic lights cycles, based on traffic and air pollution sensory information, in order to improve the performance of urban traffic networks...
April 26, 2017: Sensors
https://www.readbyqxmd.com/read/28445382/evidence-based-medicine-in-aesthetic-surgery-the-significance-of-level-to-aesthetic-surgery
#18
Rod J Rohrich, Min-Jeong Cho
Since its popularization in the 1980s, evidence-based medicine has become the cornerstone of American health care. Many specialties rapidly adapted to the paradigm shift of health care by delivering treatment using the evidence-based guidelines. However, the field of plastic surgery has been slow to implement evidence-based medicine compared with the other specialties because of the challenges of performing randomized controlled trials, such as funding, variability in surgical skills, and difficulty with standardization of techniques...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445318/renal-failure-caused-by-a-partly-calcified-aortic-aneurysm-in-a-patient-with-dabigatran-therapy-a-case-report
#19
Philipp Jud, Thomas Gary, Kurt Tiesenhausen, Rupert Portugaller, Gerald Hackl, Marianne Brodmann
RATIONALE: Abdominal aortic aneurysms (AAAs) are mostly asymptomatic. If aortic aneurysms become symptomatic, complications include peripheral embolization, acute aortic occlusion, and aortic rupture. However, there are also unusual complications caused by aortic aneurysms. PATIENT CONCERNS: An 87-old male with dabigatran therapy presented with newly developed melena and acute renal failure. Radiological imaging revealed an AAA with thrombotic and calcified deposits which affected the renal arteries...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445221/changes-in-personal-relationships-during-residency-and-their-effects-on-resident-wellness-a-qualitative-study
#20
Marcus Law, Michelle Lam, Diana Wu, Paula Veinot, Maria Mylopoulos
PURPOSE: Residency poses challenges for residents' personal relationships. Research suggests residents rely on family and friends for support during their training. The authors explored the impact of residency demands on residents' personal relationships and the effects changes in those relationships could have on their wellness. METHOD: The authors used a constructivist grounded theory approach. In 2012-2014, they conducted semistructured interviews with a purposive and theoretical sample of 16 Canadian residents from various specialties and training levels...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
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