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https://www.readbyqxmd.com/read/28064038/characterization-of-hexose-transporters-in-yarrowia-lipolytica-reveals-new-groups-of-sugar-porters-involved-in-yeast-growth
#1
Zbigniew Lazar, Cécile Neuvéglise, Tristan Rossignol, Hugo Devillers, Nicolas Morin, Małgorzata Robak, Jean-Marc Nicaud, Anne-Marie Crutz-Le Coq
Sugar assimilation has been intensively studied in the model yeast S. cerevisiae, and for two decades, it has been clear that the homologous HXT genes, which encode a set of hexose transporters, play a central role in this process. However, in the yeast Yarrowia lipolytica, which is well-known for its biotechnological applications, sugar assimilation is only poorly understood, even though this yeast exhibits peculiar intra-strain differences in fructose uptake: some strains (e.g., W29) are known to be slow-growing in fructose while others (e...
January 4, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28053057/better-the-devil-you-know-common-terns-stay-with-a-previous-partner-although-pair-bond-duration-does-not-affect-breeding-output
#2
Maren Rebke, Peter H Becker, Fernando Colchero
In a monogamous species two partners contribute to the breeding process. We study pair formation as well as the effect of pair bond length and age on breeding performance, incorporating individual heterogeneity, based on a high-quality dataset of a long-lived seabird, the common tern (Sterna hirundo). To handle missing information and model the complicated processes driving reproduction, we use a hierarchical Bayesian model of the steps that lead to the number of fledglings, including processes at the individual and the pair level...
January 11, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28018391/identification-of-plastoglobules-as-a-site-of-carotenoid-cleavage
#3
Sarah Rottet, Julie Devillers, Gaétan Glauser, Véronique Douet, Céline Besagni, Felix Kessler
Carotenoids play an essential role in light harvesting and protection from excess light. During chloroplast senescence carotenoids are released from their binding proteins and are eventually metabolized. Carotenoid cleavage dioxygenase 4 (CCD4) is involved in carotenoid breakdown in senescing leaf and desiccating seed, and is part of the proteome of plastoglobules (PG), which are thylakoid-associated lipid droplets. Here, we demonstrate that CCD4 is functionally active in PG. Leaves of Arabidopsis thaliana ccd4 mutants constitutively expressing CCD4 fused to yellow fluorescent protein showed strong fluorescence in PG and reduced carotenoid levels upon dark-induced senescence...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28018348/pd-l1-is-not-constitutively-expressed-on-tasmanian-devil-facial-tumor-cells-but-is-strongly-upregulated-in-response-to-ifn-%C3%AE-and-can-be-expressed-in-the-tumor-microenvironment
#4
Andrew S Flies, A Bruce Lyons, Lynn M Corcoran, Anthony T Papenfuss, James M Murphy, Graeme W Knowles, Gregory M Woods, John D Hayball
The devil facial tumor disease (DFTD) is caused by clonal transmissible cancers that have led to a catastrophic decline in the wild Tasmanian devil (Sarcophilus harrisii) population. The first transmissible tumor, now termed devil facial tumor 1 (DFT1), was first discovered in 1996 and has been continually transmitted to new hosts for at least 20 years. In 2015, a second transmissible cancer [devil facial tumor 2 (DFT2)] was discovered in wild devils, and the DFT2 is genetically distinct and independent from the DFT1...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/28002453/comparing-selections-of-environmental-variables-for-ecological-studies-a-focus-on-terrain-attributes
#5
Vincent Lecours, Craig J Brown, Rodolphe Devillers, Vanessa L Lucieer, Evan N Edinger
Selecting appropriate environmental variables is a key step in ecology. Terrain attributes (e.g. slope, rugosity) are routinely used as abiotic surrogates of species distribution and to produce habitat maps that can be used in decision-making for conservation or management. Selecting appropriate terrain attributes for ecological studies may be a challenging process that can lead users to select a subjective, potentially sub-optimal combination of attributes for their applications. The objective of this paper is to assess the impacts of subjectively selecting terrain attributes for ecological applications by comparing the performance of different combinations of terrain attributes in the production of habitat maps and species distribution models...
2016: PloS One
https://www.readbyqxmd.com/read/27991955/dating-stalagmite-from-caverna-do-diabo-devil%C3%A2-s-cave-by-tl-and-epr-techniques
#6
Shigueo Watanabe, Nilo F Cano, T K Gundu Rao, Betzabel N Silva-Carrera, Lucas S Carmo, Antonio J A Quina, Roseli F Gennari, Casimiro S Munita, Jorge S Ayala-Arenas, Bruno G Fernandes
A cylindrical fragment of stalagmite from Caverna do Diabo, State of São Paulo, Brazil, has been studied and dated by thermoluminescence and electron paramagnetic resonance techniques. The thermoluminescence glow curves of stalagmite samples and subsequently gamma irradiated, have shown rise of three peaks at 135, 180 and 265 °C. From electron paramagnetic resonance spectra of stalagmite was possible to clearly identify three paramagnetic centers in the g = 2.0 region: Centers I, II and III are due to , and , respectively...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27956166/nutritional-status-and-functional-digestive-histology-of-the-carnivorous-tasmanian-devil-sarcophilus-harrisii
#7
Hayley J Stannard, Lydia Tong, Michelle Shaw, Monique Van Sluys, Bronwyn McAllan, David Raubenheimer
Tasmanian devils (Sarcophilus harrisii) are the largest carnivorous marsupial in Australia. Currently many animals are being held in captivity as a management procedure to combat Devil Facial Tumor Disease. Only one published study thus far has investigated nutrition in Tasmanian devils, determining their maintenance energy requirements and digestibility on a rodent diet. More information is needed on Tasmanian devil nutritional and gastrointestinal function to aid in their management. Our study aimed to investigate the current nutritional status of Tasmanian devils in a captive population and functional morphology and histology of their gastrointestinal tract...
December 9, 2016: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/27936237/the-immunomodulatory-small-molecule-imiquimod-induces-apoptosis-in-devil-facial-tumour-cell-lines
#8
Amanda L Patchett, Jocelyn M Darby, Cesar Tovar, A Bruce Lyons, Gregory M Woods
The survival of the Tasmanian devil (Sarcophilus harrisii) is threatened by devil facial tumour disease (DFTD). This transmissible cancer is usually fatal, and no successful treatments have been developed. In human studies, the small immunomodulatory molecule imiquimod is a successful immunotherapy, activating anti-tumour immunity via stimulation of toll-like receptor-7 (TLR7) signaling pathways. In addition, imiquimod is a potent inducer of apoptosis in human tumour cell lines via TLR7 independent mechanisms...
2016: PloS One
https://www.readbyqxmd.com/read/27936183/molecular-evolution-of-pten-pseudogenes-in-mammals
#9
Jingsi Tang, Ruihong Ning, Bo Zeng, Ying Li
Phosphatase and tensin homolog (PTEN) is a tumor-suppressor gene. PTEN pseudogene (PTENp) acts as an endogenous RNA, which regulates its parental gene by competitively binding to the 3' UTR of PTEN gene in the human. Despite the importance of this pseudogene, little is known about the molecular evolution of PTENp in mammals. In this study, we identified 37 pseudogenes from 65 mammalian genomes. Among them, 32 were from rodents or primates. Phylogenetic analyse showed a complex evolutionary history of this gene family...
2016: PloS One
https://www.readbyqxmd.com/read/27931839/overview-of-the-predictive-value-of-quantitative-18-fdg-pet-in-head-and-neck-cancer-treated-with-chemoradiotherapy
#10
REVIEW
J Castelli, B De Bari, A Depeursinge, A Simon, A Devillers, G Roman Jimenez, J Prior, M Ozsahin, R de Crevoisier, J Bourhis
18 F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) allows to quantify the metabolic activity of a tumor (glycolysis) and has become a reference tool in oncology for the staging, restaging, radiotherapy planning and monitoring response in many cancers. Quantitative analyses have been introduced in order to overcome some of the limits of the visual methods, allowing an easier and more objective comparison of the inter- and intra-patients variations. The aims of this review were to report available evidences on the clinical value of quantitative PET/CT parameters in HNC...
December 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27906277/optical-manipulation-using-highly-focused-alternate-radially-and-azimuthally-polarized-beams-modulated-by-a-devil-s-lens
#11
Zhirong Liu, P H Jones
We propose and demonstrate a novel high numerical aperture (NA) focusing system composed of an annular beam with alternate radially and azimuthally polarized rings, focused by a devil's lens (DL), and further investigate its radiation forces acting upon a Rayleigh particle both analytically and numerically. Strongly focused cylindrical vector beams produce either dark-centered or peak-centered intensity distributions depending on the state of polarization, whereas the DL produces a series of foci along the propagation direction...
December 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/27897159/erratum-activating-atr-the-devil-s-in-the-detaa1l
#12
Wojciech Niedzwiedz
No abstract text is available yet for this article.
November 29, 2016: Nature Cell Biology
https://www.readbyqxmd.com/read/27894411/allele-specific-pcr-and-melting-curve-analysis-showed-relatively-high-frequency-of-%C3%AE-casein-gene-a1-allele-in-iranian-holstein-simmental-and-native-cows
#13
M Gholami, S H Hafezian, G Rahimi, A Farhadi, Z Rahimi, D Kahrizi, S Kiani, H Karim, S Vaziri, S Muhammadi, F Veisi, K Ghadiri, H Shetabi, J Zargooshi
There are two allelic forms of A1 and A2 of β-casein gene in dairy cattle. Proteolytic digestion of bovine β-casein A1 type produces bioactive peptide of β-casomorphin-7 known as milk devil. β-casomorphin-7 causes many diseases, including type 1 diabetes, cardiovascular disease syndrome, sudden death and madness. The aim of the present study was to determine the different allelic forms of β-casein gene in Iranian Holstein, Simmental and native cattle in order to identify A1 and A2 variants. The blood samples were collected randomly and DNA was extracted using modified salting out method...
October 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27855228/the-devil-is-in-the-details-incomplete-reporting-in-preclinical-animal-research
#14
Marc T Avey, David Moher, Katrina J Sullivan, Dean Fergusson, Gilly Griffin, Jeremy M Grimshaw, Brian Hutton, Manoj M Lalu, Malcolm Macleod, John Marshall, Shirley H J Mei, Michael Rudnicki, Duncan J Stewart, Alexis F Turgeon, Lauralyn McIntyre
Incomplete reporting of study methods and results has become a focal point for failures in the reproducibility and translation of findings from preclinical research. Here we demonstrate that incomplete reporting of preclinical research is not limited to a few elements of research design, but rather is a broader problem that extends to the reporting of the methods and results. We evaluated 47 preclinical research studies from a systematic review of acute lung injury that use mesenchymal stem cells (MSCs) as a treatment...
2016: PloS One
https://www.readbyqxmd.com/read/27846529/response-to-comments-on-reconciliation-of-the-devils-hole-climate-record-with-orbital-forcing
#15
Gina E Moseley, Yuri V Dublyansky, R Lawrence Edwards, Kathleen A Wendt, Mathieu Pythoud, Pu Zhang, Hai Cheng, Yanbin Lu, Ronny Boch, Christoph Spötl
Winograd and Coplen question the thorium-230 distribution model proposed to explain the age bias observed with increasing depth during Termination II. We have evaluated both criticisms and find that all samples display virtually identical fabrics, argue that the modern setting is not analogous to the conditions during Termination II, and reiterate the robustness of our age models. Our conclusions remain unchanged.
October 21, 2016: Science
https://www.readbyqxmd.com/read/27846528/comment-on-reconciliation-of-the-devils-hole-climate-record-with-orbital-forcing
#16
Tyler B Coplen
Moseley et al's (Reports, 8 January 2016, p. 165) preferred-Termination-II age is subjective, as evidenced by variation in their Termination-II ages of 2500 years per meter. Termination-II-age bias decreases to zero at ~1.5 meters below the present-day water table, if one assumes linear variation with core-sample height. Maintaining the required gradient of thorium isotope (230)Th over 3.6 meters for 1000 years, much less 10,000 years, seems exceedingly unlikely.
October 21, 2016: Science
https://www.readbyqxmd.com/read/27846527/comment-on-reconciliation-of-the-devils-hole-climate-record-with-orbital-forcing
#17
Isaac J Winograd
Moseley et al (Reports, 8 January 2016, p. 165) postulate an increase in dissolved thorium isotope (230)Th with depth below the water table as the explanation for the differing ages of Termination II. Flow of geothermal water through the Devils Hole caverns precludes this explanation. Deposition of younger secondary calcite into the initial porosity of the calcite comprising their cores is a plausible alternate explanation.
October 21, 2016: Science
https://www.readbyqxmd.com/read/27837290/the-appeal-of-the-devil-s-eye-social-evaluation-affects-social-attention
#18
Luciana Carraro, Mario Dalmaso, Luigi Castelli, Giovanni Galfano, Andrea Bobbio, Gabriele Mantovani
Humans typically exhibit a tendency to follow the gaze of conspecifics, a social attention behaviour known as gaze cueing. Here, we addressed whether episodically learned social knowledge about the behaviours performed by the individual bearing the gaze can influence this phenomenon. In a learning phase, different faces were systematically associated with either positive or negative behaviours. The same faces were then used as stimuli in a gaze-cueing task. The results showed that faces associated with antisocial norm-violating behaviours triggered stronger gaze-cueing effects as compared to faces associated with sociable behaviours...
November 11, 2016: Cognitive Processing
https://www.readbyqxmd.com/read/27829042/sympathy-for-the-devil-detailing-the-effects-of-planning-unit-size-thematic-resolution-of-reef-classes-and-socioeconomic-costs-on-spatial-priorities-for-marine-conservation
#19
Jessica Cheok, Robert L Pressey, Rebecca Weeks, Serge Andréfouët, James Moloney
Spatial data characteristics have the potential to influence various aspects of prioritising biodiversity areas for systematic conservation planning. There has been some exploration of the combined effects of size of planning units and level of classification of physical environments on the pattern and extent of priority areas. However, these data characteristics have yet to be explicitly investigated in terms of their interaction with different socioeconomic cost data during the spatial prioritisation process...
2016: PloS One
https://www.readbyqxmd.com/read/27809394/precision-wildlife-medicine-applications-of-the-human-centred-precision-medicine-revolution-to-species-conservation
#20
Jenny Whilde, Mark Q Martindale, David J Duffy
The current species extinction crisis is being exacerbated by an increased rate of emergence of epizootic disease. Human-induced factors including habitat degradation, loss of biodiversity and wildlife population reductions resulting in reduced genetic variation are accelerating disease emergence. Novel, efficient and effective approaches are required to combat these epizootic events. Here, we present the case for the application of human precision medicine approaches to wildlife medicine in order to enhance species conservation efforts...
November 3, 2016: Global Change Biology
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