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https://www.readbyqxmd.com/read/28230097/evidence-for-risk-extrapolation-in-decision-making-by-tadpoles
#1
Adam L Crane, Maud C O Ferrari
Through time, the activity patterns, morphology, and development of both predators and prey change, which in turn alter the relative vulnerability of prey to their coexisting predators. Recognizing these changes can thus allow prey to make optimal decisions by projecting risk trends into the future. We used tadpoles (Lithobates sylvaticus) to test the hypothesis that tadpoles can extrapolate information about predation risk from past information. We exposed tadpoles to an odour that represented either a temporally consistent risk or an increasing risk...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229185/hamate-and-pisiform-coalition-a-case-report-and-introduction-to-the-carpal-c-sign-on-lateral-radiograph
#2
Jonathan Cortese, Marc Soubeyrand, Leo Razakamanantsoa, Marie-France Bellin, Maud Creze
Hamate-pisiform coalition is an exceptional form of carpal coalition. Case reports are essential to gain a better understanding of this variant. We report a case of congenital bilateral hamate-pisiform coalition in a 20-year-old male discovered in the context of a right wrist trauma. Radiographs also revealed a bilateral scapholunate diastasis. Clinical examination and radiological findings suggested that the right wrist scapholunate diastasis was related to scapholunate instability. Left wrist scapholunate diastasis could be related to (1) a pathological feature or (2) a normal variant associated with hamate-pisiform coalition...
February 22, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28228563/formal-research-exposure-during-neurology-residency-training-matters
#3
Alberto Maud, Gustavo J Rodríguez
No abstract text is available yet for this article.
February 22, 2017: Neurology
https://www.readbyqxmd.com/read/28228523/vpx-overcomes-a-samhd1-independent-block-to-hiv-reverse-transcription-that-is-specific-to-resting-cd4-t-cells
#4
Hanna-Mari Baldauf, Lena Stegmann, Sarah-Marie Schwarz, Ina Ambiel, Maud Trotard, Margarethe Martin, Manja Burggraf, Gina M Lenzi, Helena Lejk, Xiaoyu Pan, Oliver I Fregoso, Efrem S Lim, Libin Abraham, Laura A Nguyen, Frank Rutsch, Renate König, Baek Kim, Michael Emerman, Oliver T Fackler, Oliver T Keppler
Early after entry into monocytes, macrophages, dendritic cells, and resting CD4 T cells, HIV encounters a block, limiting reverse transcription (RT) of the incoming viral RNA genome. In this context, dNTP triphosphohydrolase SAM domain and HD domain-containing protein 1 (SAMHD1) has been identified as a restriction factor, lowering the concentration of dNTP substrates to limit RT. The accessory lentiviral protein X (Vpx) proteins from the major simian immunodeficiency virus of rhesus macaque, sooty mangabey, and HIV-2 (SIVsmm/SIVmac/HIV-2) lineage packaged into virions target SAMHD1 for proteasomal degradation, increase intracellular dNTP pools, and facilitate HIV cDNA synthesis...
February 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28228264/lsd1-controls-timely-myod-expression-via-myod-core-enhancer-transcription
#5
Isabella Scionti, Shinichiro Hayashi, Sandrine Mouradian, Emmanuelle Girard, Joana Esteves de Lima, Véronique Morel, Thomas Simonet, Maud Wurmser, Pascal Maire, Katia Ancelin, Eric Metzger, Roland Schüle, Evelyne Goillot, Frederic Relaix, Laurent Schaeffer
MyoD is a master regulator of myogenesis. Chromatin modifications required to trigger MyoD expression are still poorly described. Here, we demonstrate that the histone demethylase LSD1/KDM1a is recruited on the MyoD core enhancer upon muscle differentiation. Depletion of Lsd1 in myoblasts precludes the removal of H3K9 methylation and the recruitment of RNA polymerase II on the core enhancer, thereby preventing transcription of the non-coding enhancer RNA required for MyoD expression (CEeRNA). Consistently, Lsd1 conditional inactivation in muscle progenitor cells during embryogenesis prevented transcription of the CEeRNA and delayed MyoD expression...
February 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28227856/multiquadric-spline-based-interactive-segmentation-of-vascular-networks
#6
Sachin Meena, V B Surya Prasath, Yasmin M Kassim, Richard J Maude, Olga V Glinskii, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Sachin Meena, V B Surya Prasath, Yasmin M Kassim, Richard J Maude, Olga V Glinskii, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Virginia H Huxley, Yasmin M Kassim, Sachin Meena, Kannappan Palaniappan, Vladislav V Glinsky, Olga V Glinskii, Richard J Maude, V B Surya Prasath
Commonly used drawing tools for interactive image segmentation and labeling include active contours or boundaries, scribbles, rectangles and other shapes. Thin vessel shapes in images of vascular networks are difficult to segment using automatic or interactive methods. This paper introduces the novel use of a sparse set of user-defined seed points (supervised labels) for precisely, quickly and robustly segmenting complex biomedical images. A multiquadric spline-based binary classifier is proposed as a unique approach for interactive segmentation using as features color values and the location of seed points...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227125/random-forests-for-dura-mater-microvasculature-segmentation-using-epifluorescence-images
#7
Yasmin M Kassim, V B Surya Prasath, Rengarajan Pelapur, Olga V Glinskii, Richard J Maude, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Yasmin M Kassim, V B Surya Prasath, Rengarajan Pelapur, Olga V Glinskii, Richard J Maude, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Virginia H Huxley, Yasmin M Kassim, Rengarajan Pelapur, Kannappan Palaniappan, Vladislav V Glinsky, Olga V Glinskii, Richard J Maude, V B Surya Prasath
Automatic segmentation of microvascular structures is a critical step in quantitatively characterizing vessel remodeling and other physiological changes in the dura mater or other tissues. We developed a supervised random forest (RF) classifier for segmenting thin vessel structures using multiscale features based on Hessian, oriented second derivatives, Laplacian of Gaussian and line features. The latter multiscale line detector feature helps in detecting and connecting faint vessel structures that would otherwise be missed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225143/spatially-resolved-studies-of-the-phases-and-morphology-of-methylammonium-and-formamidinium-lead-tri-halide-perovskites
#8
K Galkowski, A A Mitioglu, A Surrente, Z Yang, D K Maude, P Kossacki, G E Eperon, J T-W Wang, H J Snaith, P Plochocka, R J Nicholas
The family of organic-inorganic tri-halide perovskites including MA (MethylAmmonium)PbI3, MAPbI3-xClx, FA (FormAmidinium)PbI3 and FAPbBr3 are having a tremendous impact on the field of photovoltaic cells due to the combination of their ease of deposition and high energy conversion efficiencies. Device performance, however, is known to be still significantly affected by the presence of inhomogeneities. Here we report on a study of temperature dependent micro-photoluminescence which shows a strong spatial inhomogeneity related to the presence of microcrystalline grains, which can be both bright and dark...
February 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28222183/correction-igf-1-induces-ghrh-neuronal-axon-elongation-during-early-postnatal-life-in-mice
#9
Lyvianne Decourtye, Erik Mire, Maud Clemessy, Victor Heurtier, Tatiana Ledent, Iain C Robinson, Patrice Mollard, Jacques Epelbaum, Michael J Meaney, Sonia Garel, Yves Le Bouc, Laurent Kappeler
[This corrects the article DOI: 10.1371/journal.pone.0170083.].
2017: PloS One
https://www.readbyqxmd.com/read/28213138/fever-and-arthralgia-after-volcano-boarding-in-nicaragua
#10
Maud Ariaans, Marion José Valladares, Monique Keuter, Paul Verweij, Andre J van der Ven, Quirijn de Mast
No abstract text is available yet for this article.
February 15, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/28211828/self-efficacy-and-quality-of-life-after-low-intensity-neuropsychological-rehabilitation-a-pre-post-intervention-study
#11
Ingrid Brands, Maud Custers, Caroline van Heugten
BACKGROUND: Being highly self-efficacious is a key factor in successful chronic disease self-management. It is unknown whether neuropsychological rehabilitation improves self-efficacy in managing the consequences of brain injury. OBJECTIVE: To investigate whether levels of general and brain injury specific self-efficacy and quality of life (QoL) increased after neuropsychological rehabilitation and whether cognitive performance was associated with self-efficacy...
February 15, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28209316/intestinal-adaptations-after-bariatric-surgery-consequences-on-glucose-homeostasis
#12
REVIEW
Jean-Baptiste Cavin, André Bado, Maude Le Gall
The gastrointestinal (GI) tract can play a direct role in glucose homeostasis by modulating the digestion and absorption of carbohydrates and by producing the incretin hormones. In recent years, numerous studies have focused on intestinal adaptation following bariatric surgeries. Changes in the number of incretin (glucagon-like peptide 1 and glucose-dependent insulinotropic polypeptide) producing cells have been reported, which could result in the modified hormonal response seen after surgery. In addition, the rate of absorption and the intestinal regions exposed to sugars may affect the time course of appearance of glucose in the blood...
February 10, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28208288/-15-n-nmr-based-approach-for-amino-acids-based-13-c-metabolic-flux-analysis-of-metabolism
#13
Pierre Millard, Edern Cahoreau, Maud Heuillet, Jean-Charles Portais, Guy Lippens
NMR analysis of the isotope incorporation in amino acids can be used to derive information about the topology and operation of cellular metabolism. Although traditionally performed by (1)H and/or (13)C NMR, we present here novel experiments that exploit the (15)N nucleus to derive the same information with increased efficiency. Combined with a novel Hα-(13)CO experiment, we increase the coverage of the isotopic space that can be probed by obtaining the complete distribution of isotopic species for the first two carbons of amino acids in cellular biomass hydrolysates...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28205007/long-term-evaluation-of-biliary-reflux-after-experimental-one-anastomosis-gastric-bypass-in-rats
#14
Matthieu Bruzzi, Henri Duboc, Caroline Gronnier, Dominique Rainteau, Anne Couvelard, Maude Le Gall, André Bado, Jean-Marc Chevallier
BACKGROUND: Controversy remains regarding biliary reflux after one-anastomosis gastric bypass (OAGB). The aim of this "pilot" study was to analyze biliary reflux and its potential long-term consequences on esogastric mucosae in OAGB-operated rats. METHODS: Diet-induced obese rats were subjected to OAGB (n = 10) or sham (n = 4) surgery and followed up for 16 weeks. Evolution of weight and glucose tolerance was analyzed. Bile acid concentration measurement, histological and qRT-PCR analysis were performed in the esogastric segments...
February 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28204757/subthreshold-psychosis-in-22q11-2-deletion-syndrome-multisite-naturalistic-study
#15
Omri Weisman, Yael Guri, Raquel E Gur, Donna M McDonald-McGinn, Monica E Calkins, Sunny X Tang, Beverly Emanuel, Elaine H Zackai, Stephan Eliez, Maude Schneider, Marie Schaer, Wendy R Kates, Kevin M Antshel, Wanda Fremont, Vandana Shashi, Stephen R Hooper, Marco Armando, Stefano Vicari, Maria Pontillo, Leila Kushan, Maria Jalbrzikowski, Carrie E Bearden, Joseph F Cubells, Opal Y Ousley, Elaine F Walker, Tony J Simon, Joel Stoddard, Tara A Niendam, Marianne B M van den Bree, Doron Gothelf
No abstract text is available yet for this article.
February 13, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28201752/characteristics-of-h3-k27m-mutant-gliomas-in-adults
#16
David Meyronet, Maud Esteban-Mader, Charlotte Bonnet, Marie-Odile Joly, Emmanuelle Uro-Coste, Alexandra Amiel-Benouaich, Fabien Forest, Cécilia Rousselot-Denis, Fanny Burel-Vandenbos, Véronique Bourg, Jacques Guyotat, Tanguy Fenouil, Anne Jouvet, Jérôme Honnorat, François Ducray
No abstract text is available yet for this article.
February 13, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28196076/patient-safety-incidents-are-common-in-primary-care-a-national-prospective-active-incident-reporting-survey
#17
Philippe Michel, Jean Brami, Marc Chanelière, Marion Kret, Anne Mosnier, Isabelle Dupie, Anouk Haeringer-Cholet, Maud Keriel-Gascou, Claire Maradan, Frédéric Villebrun, Meredith Makeham, Jean-Luc Quenon
BACKGROUND: The study objectives were to describe the incidence and the nature of patient safety incidents (PSIs) in primary care general practice settings, and to explore the association between these incidents and practice or organizational characteristics. METHODS: GPs, randomly selected from a national influenza surveillance network (n = 800) across France, prospectively reported any incidents observed each day over a one-week period between May and July 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28185894/trpc1-and-trpc4-channels-functionally-interact-with-stim1l-to-promote-myogenesis-and-maintain-fast-repetitive-ca-2-release-in-human-myotubes
#18
Fabrice Antigny, Jessica Sabourin, Sophie Saüc, Laurent Bernheim, Stéphane Koenig, Maud Frieden
STIM1 and Orai1 are essential players of store-operated Ca(2+) entry (SOCE) in human skeletal muscle cells and are required for adult muscle differentiation. Besides these two proteins, TRPC (transient receptor potential canonical) channels and STIM1L (a longer STIM1 isoform) are also present on muscle cells. In the present study, we assessed the role of TRPC1, TRPC4 and STIM1L in SOCE, in the maintenance of repetitive Ca(2+) transients and in muscle differentiation. Knockdown of TRPC1 and TRPC4 reduced SOCE by about 50% and significantly delayed the onset of Ca(2+) entry, both effects similar to STIM1L invalidation...
February 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28179166/macroanatomy-and-3d-probabilistic-atlas-of-the-human-insula
#19
Isabelle Faillenot, Rolf A Heckemann, Maud Frot, Alexander Hammers
The human insula is implicated in numerous functions. More and more neuroimaging studies focus on this region, however no atlas offers a complete subdivision of the insula in a reference space. The aims of this study were to define a protocol to subdivide insula, to create probability maps in the MNI152 stereotaxic space, and to provide normative reference volume measurements for these subdivisions. Six regions were manually delineated bilaterally on 3D T1 MR images of 30 healthy subjects: the three short gyri, the anterior inferior cortex, and the two long gyri...
February 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/28174720/netrin-1-protects-hepatocytes-against-cell-death-through-sustained-translation-during-the-unfolded-protein-response
#20
Thomas Lahlali, Marie-Laure Plissonnier, Cristina Romero-López, Maud Michelet, Benjamin Ducarouge, Alfredo Berzal-Herranz, Fabien Zoulim, Patrick Mehlen, Romain Parent
BACKGROUND & AIMS: Netrin-1, a multifunctional secreted protein, is up-regulated in cancer and inflammation. Netrin-1 blocks apoptosis induced by the prototypical dependence receptors deleted in colorectal carcinoma and uncoordinated phenotype-5. Although the unfolded protein response (UPR) triggers apoptosis on exposure to stress, it first attempts to restore endoplasmic reticulum homeostasis to foster cell survival. Importantly, UPR is implicated in chronic liver conditions including hepatic oncogenesis...
May 2016: Cellular and Molecular Gastroenterology and Hepatology
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