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https://www.readbyqxmd.com/read/29352480/temporal-heterogeneity-increases-with-spatial-heterogeneity-in-ecological-communities
#1
Scott L Collins, Meghan L Avolio, Corinna Gries, Lauren M Hallett, Sally E Koerner, Kimberly J La Pierre, Andrew L Rypel, Eric R Sokol, Samuel B Fey, Dan F B Flynn, Sydney K Jones, Laura M Ladwig, Julie Ripplinger, Matt B Jones
Heterogeneity is increasingly recognized as a foundational characteristic of ecological systems. Under global change, understanding temporal community heterogeneity is necessary for predicting the stability of ecosystem functions and services. Indeed, spatial heterogeneity is commonly used in alternative stable state theory as a predictor of temporal heterogeneity and therefore an early indicator of regime shifts. To evaluate whether spatial heterogeneity in species composition is predictive of temporal heterogeneity in ecological communities, we analyzed 68 community datasets spanning freshwater and terrestrial systems where measures of species abundance were replicated over space and time...
January 20, 2018: Ecology
https://www.readbyqxmd.com/read/29352413/le-bless%C3%A3-par-attentat-terroriste-st%C3%A3-phane-m%C3%A3-rat-pierre-pasquier-marie-dominique-colas-%C3%A3-dition-arnette-2017-302-pages-isbn-978-2-7-7184-1481-2
#2
Daniel Audy
No abstract text is available yet for this article.
January 19, 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29352395/association-between-crp-genetic-diversity-and-bipolar-disorder-comorbid-complications
#3
Wahid Boukouaci, José Oliveira, Bruno Etain, Meriem Bennabi, Christina Mariaselvam, Nora Hamdani, Céline Manier, Djaouida Bengoufa, Frank Bellivier, Chantal Henry, Jean-Pierre Kahn, Dominique Charron, Rajagopal Krishnamoorthy, Marion Leboyer, Ryad Tamouza
BACKGROUND: Chronic low-grade inflammation is believed to contribute, at least in a subset of patients, to the development of bipolar disorder (BD). In this context, the most investigated biological marker is the acute phase response molecule, C-reactive protein (CRP). While the genetic diversity of CRP was amply studied in various pathological settings, little is known in BD. METHODS: 568 BD patients along with 163 healthy controls (HC) were genotyped for the following single-nucleotide polymorphisms (SNPs) on the CRP gene: intron rs1417938 (+ 29) T/A, 3'-UTR rs1130864 (+ 1444) G/A, and downstream rs1205 (+ 1846) (C/T)...
January 20, 2018: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/29352115/stil-balancing-primary-microcephaly-and-cancer
#4
REVIEW
Patwardhan Dhruti, Mani Shyamala, Passemard Sandrine, Gressens Pierre, El Ghouzzi Vincent
Cell division and differentiation are two fundamental physiological processes that need to be tightly balanced to achieve harmonious development of an organ or a tissue without jeopardizing its homeostasis. The role played by the centriolar protein STIL is highly illustrative of this balance at different stages of life as deregulation of the human STIL gene expression has been associated with either insufficient brain development (primary microcephaly) or cancer, two conditions resulting from perturbations in cell cycle and chromosomal segregation...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29351913/the-rig-i-like-receptor-lgp2-inhibits-dicer-dependent-processing-of-long-double-stranded-rna-and-blocks-rna-interference-in-mammalian-cells
#5
Annemarthe G van der Veen, Pierre V Maillard, Jan Marten Schmidt, Sonia A Lee, Safia Deddouche-Grass, Annabel Borg, Svend Kjær, Ambrosius P Snijders, Caetano Reis E Sousa
In vertebrates, the presence of viral RNA in the cytosol is sensed by members of the RIG-I-like receptor (RLR) family, which signal to induce production of type I interferons (IFN). These key antiviral cytokines act in a paracrine and autocrine manner to induce hundreds of interferon-stimulated genes (ISGs), whose protein products restrict viral entry, replication and budding. ISGs include the RLRs themselves: RIG-I, MDA5 and, the least-studied family member, LGP2. In contrast, the IFN system is absent in plants and invertebrates, which defend themselves from viral intruders using RNA interference (RNAi)...
January 19, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29351669/how-pairwise-coevolutionary-models-capture-the-collective-residue-variability-in-proteins
#6
Matteo Figliuzzi, Pierre Barrat-Charlaix, Martin Weigt
Global coevolutionary models of homologous protein families, as constructed by direct coupling analysis (DCA), have recently gained popularity in particular due to their capacity to accurately predict residueresidue contacts from sequence information alone, and thereby to facilitate tertiary and quaternary protein structure prediction. More recently, they have also been used to predict fitness effects of aminoacid substitutions in proteins, and to predict evolutionary conserved protein-protein interactions...
January 17, 2018: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29351397/acute-small-intestinal-inflammation-results-in-persistent-lymphatic-alterations
#7
Sonia Rehal, Matthew Stephens, Simon Roizes, Shan Liao, Pierre-Yves von der Weid
Inflammatory bowel disease (IBD) has a complex pathophysiology with limited treatments. Structural and functional changes in the intestinal lymphatic system have been associated with the disease, with increased risk of IBD occurrence linked to a history of acute intestinal injury. To examine the potential role of the lymphatic system in inflammation recurrence, we evaluated morphological and functional changes in mouse mucosal and mesenteric lymphatic vessels, and within the mesenteric lymph nodes during acute ileitis caused by a 7-day treatment with dextran sodium sulfate (DSS)...
December 14, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29351192/seed-endophyte-microbiome-of-crotalaria-pumila-unpeeled-identification-of-plant-beneficial-methylobacteria
#8
Ariadna S Sánchez-López, Isabel Pintelon, Vincent Stevens, Valeria Imperato, Jean-Pierre Timmermans, Carmen González-Chávez, Rogelio Carrillo-González, Jonathan Van Hamme, Jaco Vangronsveld, Sofie Thijs
Metal contaminated soils are increasing worldwide. Metal-tolerant plants growing on metalliferous soils are fascinating genetic and microbial resources. Seeds can vertically transmit endophytic microorganisms that can assist next generations to cope with environmental stresses, through yet poorly understood mechanisms. The aims of this study were to identify the core seed endophyte microbiome of the pioneer metallophyte Crotalaria pumila throughout three generations, and to better understand the plant colonisation of the seed endophyte Methylobacterium sp...
January 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29350408/calibration-and-non-orthogonality-correction-of-three-axis-hall-sensors-for-the-monitoring-of-mri-workers-exposure-to-static-magnetic-fields
#9
Antoine Delmas, Lamia Belguerras, Nicolas Weber, Freddy Odille, Cédric Pasquier, Jacques Felblinger, Pierre-André Vuissoz
A Magnetic Resonance Imaging (MRI) scanner uses three different electromagnetic fields (EMF) to produce body images: a static permanent magnetic field (MF), several pulsed magnetic gradients, and a radiofrequency pulse. As a result, any occupation that includes an MRI exposes workers to a strong MF. The World Health Organization has now given the monitoring of occupational EMF exposure a high priority. One design for a low-cost, compact MF exposure monitor (« MR exposimeter ») uses a set of three orthogonally assembled Hall sensors...
January 19, 2018: Bioelectromagnetics
https://www.readbyqxmd.com/read/29350330/role-of-dual-energy-ct-in-the-diagnosis-and-follow-up-of-gout-systematic-analysis-of-the-literature
#10
André Ramon, Amélie Bohm-Sigrand, Pierre Pottecher, Pascal Richette, Jean-Francis Maillefert, Herve Devilliers, Paul Ornetti
The aim of this systematic review was to determine the potential role of dual-energy CT in the diagnosis and follow-up of gout with regard to the Outcome Measures in Rheumatology (OMERACT) filter. A systematic analysis of the literature was conducted using the MEDLINE and Cochrane databases and published abstracts of international congresses, according to the criteria of the OMERACT filter: feasibility, reproducibility, validity versus laboratory (serum urate, MSU synovial fluid aspirate) and other imaging modalities for gout, and its sensitivity to change in patients on urate lowering therapy (ULT)...
January 19, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29350182/the-role-of-eeg-in-the-diagnosis-and-classification-of-the-epilepsy-syndromes-a-tool-for-clinical-practice-by-the-ilae-neurophysiology-task-force-part-2
#11
Michalis Koutroumanidis, Alexis Arzimanoglou, Roberto Caraballo, Sushma Goyal, Anna Kaminska, Pramote Laoprasert, Hirokazu Oguni, Guido Rubboli, William Tatum, Pierre Thomas, Eugen Trinka, Luca Vignatelli, Solomon L Moshé
The concept of epilepsy syndromes, introduced in 1989, was defined as "clusters of signs and symptoms customarily occurring together". Definition of epilepsy syndromes based on electro-clinical features facilitated clinical practice and, whenever possible, clinical research in homogeneous groups of patients with epilepsies. Progress in the fields of neuroimaging and genetics made it rapidly clear that, although crucial, the electro-clinical description of epilepsy syndromes was not sufficient to allow much needed development of targeted therapies and a better understanding of the underlying pathophysiological mechanisms of seizures...
December 1, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/29350169/containment-of-highly-pathogenic-avian-influenza-a-h5n1-virus-lebanon-20161
#12
Zeina E Farah, Omaya Khatib, Sahar Hamadeh, Khadija Ahmad, Bassel El Bazzal, Pierre Zalloua, Walid Ammar, Nada Ghosn
A preparedness plan for avian influenza A(H5N1) virus infection was activated in Lebanon in 2016 after reported cases in poultry. Exposed persons were given prophylaxis and monitored daily. A total of 185 exposed persons were identified: 180 received prophylaxis, 181 were monitored, and 41 suspected cases were reported. All collected specimens were negative for virus by PCR.
February 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29350049/targeted-and-off-target-bystander-and-abscopal-effects-of-radiation-therapy-redox-mechanisms-and-risk-benefit-analysis
#13
Jean-Pierre Pouget, Alexandros G Georgakilas, Jean-Luc Ravanat
Radiation therapy (from external beams to unsealed and sealed radionuclide sources) takes advantage of the detrimental effects of the clustered production of radicals and reactive oxygen species (ROS). Research has mainly focused on the interaction of radiation with water, which is the major constituent of living beings, and with nuclear DNA, which contains the genetic information. This led to the so-called "target" theory according to which cells have to be hit by ionizing particles to elicit an important biological response, including cell death...
January 19, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29348645/a-global-perspective-on-the-trophic-geography-of-sharks
#14
Christopher S Bird, Ana Veríssimo, Sarah Magozzi, Kátya G Abrantes, Alex Aguilar, Hassan Al-Reasi, Adam Barnett, Dana M Bethea, Gérard Biais, Asuncion Borrell, Marc Bouchoucha, Mariah Boyle, Edward J Brooks, Juerg Brunnschweiler, Paco Bustamante, Aaron Carlisle, Diana Catarino, Stéphane Caut, Yves Cherel, Tiphaine Chouvelon, Diana Churchill, Javier Ciancio, Julien Claes, Ana Colaço, Dean L Courtney, Pierre Cresson, Ryan Daly, Leigh de Necker, Tetsuya Endo, Ivone Figueiredo, Ashley J Frisch, Joan Holst Hansen, Michael Heithaus, Nigel E Hussey, Johannes Iitembu, Francis Juanes, Michael J Kinney, Jeremy J Kiszka, Sebastian A Klarian, Dorothée Kopp, Robert Leaf, Yunkai Li, Anne Lorrain, Daniel J Madigan, Aleksandra Maljković, Luis Malpica-Cruz, Philip Matich, Mark G Meekan, Frédéric Ménard, Gui M Menezes, Samantha E M Munroe, Michael C Newman, Yannis P Papastamatiou, Heidi Pethybridge, Jeffrey D Plumlee, Carlos Polo-Silva, Katie Quaeck-Davies, Vincent Raoult, Jonathan Reum, Yassir Eden Torres-Rojas, David S Shiffman, Oliver N Shipley, Conrad W Speed, Michelle D Staudinger, Amy K Teffer, Alexander Tilley, Maria Valls, Jeremy J Vaudo, Tak-Cheung Wai, R J David Wells, Alex S J Wyatt, Andrew Yool, Clive N Trueman
Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats...
January 18, 2018: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29348348/whole-genome-sequence-of-a-mycobacterium-goodii-isolate-from-a-pediatric-patient-in-south-africa
#15
Mushal Allam, Lavania Joseph, Farzana Ismail, Halima Said, Nazir A Ismail, Arshad Ismail, Senzo Mtshali, Florah Mnyameni, Pierre Goussard, Jade C Pekeur, Adré Lourens, Shaheed V Omar
We describe here the draft genome sequence of a Mycobacterium goodii isolate from a pediatric patient in Western Cape, South Africa. To our knowledge, this is the second reported genome of this rapidly growing nontuberculous mycobacterial species.
January 18, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29348221/assessing-nature-s-contributions-to-people
#16
Sandra Díaz, Unai Pascual, Marie Stenseke, Berta Martín-López, Robert T Watson, Zsolt Molnár, Rosemary Hill, Kai M A Chan, Ivar A Baste, Kate A Brauman, Stephen Polasky, Andrew Church, Mark Lonsdale, Anne Larigauderie, Paul W Leadley, Alexander P E van Oudenhoven, Felice van der Plaat, Matthias Schröter, Sandra Lavorel, Yildiz Aumeeruddy-Thomas, Elena Bukvareva, Kirsten Davies, Sebsebe Demissew, Gunay Erpul, Pierre Failler, Carlos A Guerra, Chad L Hewitt, Hans Keune, Sarah Lindley, Yoshihisa Shirayama
No abstract text is available yet for this article.
January 19, 2018: Science
https://www.readbyqxmd.com/read/29347991/the-benefits-and-tolerance-of-exercise-in-myasthenia-gravis-mgex-study-protocol-for-a-randomised-controlled-trial
#17
Simone Birnbaum, Jean-Yves Hogrel, Raphael Porcher, Pierre Portero, Bernard Clair, Bruno Eymard, Sophie Demeret, Guillaume Bassez, Marcela Gargiulo, Estelle Louët, Sonia Berrih-Aknin, Asmaa Jobic, Philippe Aegerter, Philippe Thoumie, Tarek Sharshar
BACKGROUND: Research exploring the effects of physical exercise in auto-immune myasthenia gravis (MG) is scarce. The few existing studies present methodological shortcomings limiting the conclusions and generalisability of results. It is hypothesised that exercise could have positive physical, psychological as well as immunomodulatory effects and may be a beneficial addition to current pharmacological management of this chronic disease. The aim of this study is to evaluate the benefits on perceived quality of life (QOL) and physical fitness of a home-based physical exercise program compared to usual care, for patients with stabilised, generalised auto-immune MG...
January 18, 2018: Trials
https://www.readbyqxmd.com/read/29347987/determinants-of-long-term-outcome-in-icu-survivors-results-from-the-frog-icu-study
#18
Etienne Gayat, Alain Cariou, Nicolas Deye, Antoine Vieillard-Baron, Samir Jaber, Charles Damoisel, Qin Lu, Xavier Monnet, Isabelle Rennuit, Elie Azoulay, Marc Léone, Heikel Oueslati, Bertrand Guidet, Diane Friedman, Antoine Tesnière, Romain Sonneville, Philippe Montravers, Sébastien Pili-Floury, Jean-Yves Lefrant, Jacques Duranteau, Pierre-François Laterre, Nicolas Brechot, Karine Chevreul, Morgane Michel, Bernard Cholley, Matthieu Legrand, Jean-Marie Launay, Eric Vicaut, Mervyn Singer, Matthieu Resche-Rigon, Alexandre Mebazaa
BACKGROUND: Intensive care unit (ICU) survivors have reduced long-term survival compared to the general population. Identifying parameters at ICU discharge that are associated with poor long-term outcomes may prove useful in targeting an at-risk population. The main objective of the study was to identify clinical and biological determinants of death in the year following ICU discharge. METHODS: FROG-ICU was a prospective, observational, multicenter cohort study of ICU survivors followed 1 year after discharge, including 21 medical, surgical or mixed ICUs in France and Belgium...
January 18, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29347975/single-low-dose-primaquine-for-blocking-transmission-of-plasmodium-falciparum-malaria-a-proposed-model-derived-age-based-regimen-for-sub-saharan-africa
#19
W Robert Taylor, Htee Khu Naw, Kathryn Maitland, Thomas N Williams, Melissa Kapulu, Umberto D'Alessandro, James A Berkley, Philip Bejon, Joseph Okebe, Jane Achan, Alfred Ngwa Amambua, Muna Affara, Davis Nwakanma, Jean-Pierre van Geertruyden, Muhindo Mavoko, Pascal Lutumba, Junior Matangila, Philipe Brasseur, Patrice Piola, Rindra Randremanana, Estrella Lasry, Caterina Fanello, Marie Onyamboko, Birgit Schramm, Zolia Yah, Joel Jones, Rick M Fairhurst, Mahamadou Diakite, Grace Malenga, Malcolm Molyneux, Claude Rwagacondo, Charles Obonyo, Endalamaw Gadisa, Abraham Aseffa, Mores Loolpapit, Marie-Claire Henry, Grant Dorsey, Chandy John, Sodiomon B Sirima, Karen I Barnes, Peter Kremsner, Nicholas P Day, Nicholas J White, Mavuto Mukaka
BACKGROUND: In 2012, the World Health Organization recommended blocking the transmission of Plasmodium falciparum with single low-dose primaquine (SLDPQ, target dose 0.25 mg base/kg body weight), without testing for glucose-6-phosphate dehydrogenase deficiency (G6PDd), when treating patients with uncomplicated falciparum malaria. We sought to develop an age-based SLDPQ regimen that would be suitable for sub-Saharan Africa. METHODS: Using data on the anti-infectivity efficacy and tolerability of primaquine (PQ), the epidemiology of anaemia, and the risks of PQ-induced acute haemolytic anaemia (AHA) and clinically significant anaemia (CSA), we prospectively defined therapeutic-dose ranges of 0...
January 18, 2018: BMC Medicine
https://www.readbyqxmd.com/read/29347620/suppression-of-crystalline-fluctuations-by-competing-structures-in-a-supercooled-liquid
#20
Pierre Ronceray, Peter Harrowell
We propose a geometrical characterization of amorphous liquid structures that suppress crystallization by competing locally with crystalline order. We introduce for this purpose the crystal affinity of a liquid, a simple measure of its propensity to accumulate local crystalline structures on cooling. This quantity is explicitly related to the high-temperature structural covariance between local fluctuations in crystal order and that of competing liquid structures: favoring a structure that, due to poor overlap properties, anticorrelates with crystalline order reduces the affinity of the liquid...
October 2017: Physical Review. E
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