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https://www.readbyqxmd.com/read/29347557/constant-pressure-nested-sampling-with-atomistic-dynamics
#1
Robert J N Baldock, Noam Bernstein, K Michael Salerno, Lívia B Pártay, Gábor Csányi
The nested sampling algorithm has been shown to be a general method for calculating the pressure-temperature-composition phase diagrams of materials. While the previous implementation used single-particle Monte Carlo moves, these are inefficient for condensed systems with general interactions where single-particle moves cannot be evaluated faster than the energy of the whole system. Here we enhance the method by using all-particle moves: either Galilean Monte Carlo or the total enthalpy Hamiltonian Monte Carlo algorithm, introduced in this paper...
October 2017: Physical Review. E
https://www.readbyqxmd.com/read/29343217/ceratocystis-cacaofunesta-genome-analysis-reveals-a-large-expansion-of-extracellular-phosphatidylinositol-specific-phospholipase-c-genes-pi-plc
#2
Eddy Patricia Lopez Molano, Odalys García Cabrera, Juliana Jose, Leandro Costa do Nascimento, Marcelo Falsarella Carazzolle, Paulo José Pereira Lima Teixeira, Javier Correa Alvarez, Ricardo Augusto Tiburcio, Paulo Massanari Tokimatu Filho, Gustavo Machado Alvares de Lima, Rafael Victório Carvalho Guido, Thamy Lívia Ribeiro Corrêa, Adriana Franco Paes Leme, Piotr Mieczkowski, Gonçalo Amarante Guimarães Pereira
BACKGROUND: The Ceratocystis genus harbors a large number of phytopathogenic fungi that cause xylem parenchyma degradation and vascular destruction on a broad range of economically important plants. Ceratocystis cacaofunesta is a necrotrophic fungus responsible for lethal wilt disease in cacao. The aim of this work is to analyze the genome of C. cacaofunesta through a comparative approach with genomes of other Sordariomycetes in order to better understand the molecular basis of pathogenicity in the Ceratocystis genus...
January 17, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29341252/painful-procedures-can-affect-postnatal-growth-and-neurodevelopment-in-preterm-infants
#3
Caterina Coviello, Marina Popple Martinez, Livia Drovandi, Corsini Iuri, Valentina Leonardi, Clara Lunardi, Carla Antonelli, Simone Pratesi, Carlo Dani
AIM: This Italian study evaluated whether painful procedures during the first four weeks of life were related to subsequent weight gain, head circumference (HC) and neurodevelopmental outcomes in preterm infants, METHODS: We evaluated the number of invasive procedures that infants born at less than 32 weeks of gestational age (GA) underwent in the Neonatal Intensive Care Unit of Careggi Hospital, Florence from January to December 2015. Weight and HC were recorded at birth, 36 weeks of PMA and six and 12 months of CA...
January 17, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29339459/a-novel-two-component-system-of-streptococcus-sanguinis-affecting-functions-associated-with-viability-in-saliva-and-biofilm-formation
#4
Tarsila M Camargo, Rafael N Stipp, Lívia A Alves, Erika N Harth-Chu, José F Höfling, Renata O Mattos-Graner
Streptococcus sanguinis is a pioneer species of teeth and a common opportunistic pathogen of infective endocarditis. In this study, we identified a two-component system, SptRS Ss , affecting S. sanguinis survival in saliva and biofilm formation. Isogenic mutants of sptRSs (SKsptR) and sptSSs (SKsptS) showed reduced cell counts in ex vivo assays of viability in saliva, compared to parent strain SK36 and complemented mutants. Reduced counts of the mutants in saliva were associated with reduced growth rates in poor nutrient medium (RPMI) and increased susceptibility to deposition of C3b and MAC of the complement system, a defense component of saliva and serum...
January 16, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29339383/new-shuttle-vectors-for-gene-cloning-and-expression-in-multidrug-resistant-acinetobacter-species
#5
Massimiliano Lucidi, Federica Runci, Giordano Rampioni, Emanuela Frangipani, Livia Leoni, Paolo Visca
Understanding bacterial pathogenesis requires adequate genetic tools to assess the role of individual virulence determinants by mutagenesis and complementation assays, as well as for homologous and heterologous expression of cloned genes. Our knowledge of Acinetobacter baumannii pathogenesis has so far been limited by the scarcity of genetic tools to manipulate multi drug resistant (MDR) epidemic strains which are responsible for most of infections. Here, we report the construction of new multi-purpose shuttle plasmids, namely pVRL1 and pVRL2, which can efficiently replicate in Acinetobacter sp...
January 16, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29339108/phenotype-in-girls-and-women-with-turner-syndrome-association-between-dysmorphic-features-karyotype-and-cardio-aortic-malformations
#6
Iris Noordman, Anthonie Duijnhouwer, Livia Kapusta, Marlies Kempers, Nel Roeleveld, Michiel Schokking, Dominique Smeets, Kim Freriks, Henri Timmers, Janiëlle van Alfen-van der Velden
INTRODUCTION: Turner syndrome (TS) is a genetic disorder characterized by the (partial) absence or a structural aberration of the second sex chromosome and is associated with a variety of phenotypes with specific physical features and cardio-aortic malformations. The objective of this study was to gain a better insight into the differences in dysmorphic features between girls and women with TS and to explore the association between these features, karyotype and cardio-aortic malformations...
January 12, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29338273/adverse-drug-reactions-of-non-opioid-and-opioid-analgesics-reported-to-croatian-national-authority-from-2007-to-2014
#7
Petra Sunara, Darko Krnic, Livia Puljak
OBJECTIVE: Adverse drug reactions (ADRs) are commonly observed in the health services because of system weaknesses and individual errors. Analgesics are widely used and it can be expected that with the increased use one can expect increased number of ADRs of analgesics. The aim of this study was to analyze ADRs of non-opioid and opioid analgesics reported to the Croatian Agency for Medicinal Products and Medical Devices (HALMED) from 2007 to 2014. METHODS: HALMED provided data on generic drug name, year of the ADR report, type of report, institution, reporting person, patient's age, sex and ADR type...
November 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/29338000/progression-of-the-first-stage-of-spontaneous-labour-a-prospective-cohort-study-in-two-sub-saharan-african-countries
#8
Olufemi T Oladapo, Joao Paulo Souza, Bukola Fawole, Kidza Mugerwa, Gleici Perdoná, Domingos Alves, Hayala Souza, Rodrigo Reis, Livia Oliveira-Ciabati, Alexandre Maiorano, Adesina Akintan, Francis E Alu, Lawal Oyeneyin, Amos Adebayo, Josaphat Byamugisha, Miriam Nakalembe, Hadiza A Idris, Ola Okike, Fernando Althabe, Vanora Hundley, France Donnay, Robert Pattinson, Harshadkumar C Sanghvi, Jen E Jardine, Özge Tunçalp, Joshua P Vogel, Mary Ellen Stanton, Meghan Bohren, Jun Zhang, Tina Lavender, Jerker Liljestrand, Petra Ten Hoope-Bender, Matthews Mathai, Rajiv Bahl, A Metin Gülmezoglu
BACKGROUND: Escalation in the global rates of labour interventions, particularly cesarean section and oxytocin augmentation, has renewed interest in a better understanding of natural labour progression. Methodological advancements in statistical and computational techniques addressing the limitations of pioneer studies have led to novel findings and triggered a re-evaluation of current labour practices. As part of the World Health Organization's Better Outcomes in Labour Difficulty (BOLD) project, which aimed to develop a new labour monitoring-to-action tool, we examined the patterns of labour progression as depicted by cervical dilatation over time in a cohort of women in Nigeria and Uganda who gave birth vaginally following a spontaneous labour onset...
January 2018: PLoS Medicine
https://www.readbyqxmd.com/read/29337074/in-situ-clock-shift-reveals-that-the-sun-compass-contributes-to-orientation-in-a-pelagic-seabird
#9
Oliver Padget, Sarah L Bond, Marwa M Kavelaars, Emiel van Loon, Mark Bolton, Annette L Fayet, Martyna Syposz, Stephen Roberts, Tim Guilford
Compass orientation is central to the control of animal movement from the scale of local food-caching movements around a familiar area in parids [1] and corvids [2, 3] to the first autumn vector navigation of songbirds embarking on long-distance migration [4-6]. In the study of diurnal birds, where the homing pigeon, Columba livia, has been the main model, a time-compensated sun compass [7] is central to the two-step map-and-compass process of navigation from unfamiliar places, as well as guiding movement via a representation of familiar area landmarks [8-12]...
January 5, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29334424/in-vivo-epr-characterization-of-semi-synthetic-fefe-hydrogenases
#10
Livia S Meszaros, Brigitta Nemeth, Charlene Esmieu, Pierre Ceccaldi, Gustav Berggren
EPR spectroscopy reveals the formation of two different semi-synthetic hydrogenases in vivo. [FeFe] hydrogenases are metalloenzymes that catalyse the interconversion of molecular hydrogen and protons. The reaction is catalyzed by the H-cluster, consisting of a canonical iron-sulfur cluster and an organometallic [2Fe] subsite. It was recently shown how the enzyme can be reconstituted with synthetic cofactors mimicking the composition of the [2Fe] subsite, resulting in semi-synthetic hydrogenases. Here we employ EPR spectroscopy to monitor the formation of two such semi-synthetic enzymes in whole cells...
January 15, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29334156/the-retinal-ganglion-cell-layer-predicts-normal-appearing-white-matter-tract-integrity-in-multiple-sclerosis-a-combined-diffusion-tensor-imaging-and-optical-coherence-tomography-approach
#11
Carolina Alves, Sónia Batista, Otília C d'Almeida, Lívia Sousa, Luís Cunha, Rui Bernardes, Miguel Castelo-Branco
We investigated the relationship between retinal layers and normal-appearing white matter (WM) integrity in the brain of patients with relapsing-remitting multiple sclerosis (MS), using a combined diffusion tensor imaging and high resolution optical coherence tomography approach. Fifty patients and 62 controls were recruited. The patients were divided into two groups according to presence (n = 18) or absence (n = 32) of optic neuritis. Diffusion tensor data were analyzed with a voxel-wise whole brain analysis of diffusion metrics in WM with tract-based spatial statistics...
January 15, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29334092/synthetic-cells-produce-a-quorum-sensing-chemical-signal-perceived-by-pseudomonas-aeruginosa
#12
Giordano Rampioni, Francesca D'Angelo, Marco Messina, Alessandro Zennaro, Yutetsu Kuruma, Daniela Tofani, Livia Leoni, Pasquale Stano
Recent developments in bottom-up synthetic biology (e.g., lipid vesicle technology integrated with cell-free protein expression systems) allow the generation of semi-synthetic minimal cells (in short, synthetic cells, SCs) endowed with some distinctive capacities of natural cells. In particular, such approaches provide technological tools and conceptual frameworks for the design and engineering of programmable SCs capable of communicating with natural cells by exchanging chemical signals. Here we describe the generation of giant vesicle-based SCs which, via gene expression, synthesize in their aqueous lumen an enzyme that in turn produces a chemical signal...
January 15, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29332713/fissured-tongue-in-patients-with-psoriasis
#13
Bruna Lavinas Sayed Picciani, Thays Teixeira-Souza, Thiago Moreira Pessôa, Lívia Maria Santos Izahias, Jane Marcy Neffa Pinto, David Rubem Azulay, João Carlos Regazzi Avelleira, Sueli Carneiro, Eliane Pedra Dias
No abstract text is available yet for this article.
February 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29332048/frequency-of-cardiovascular-genetic-risk-factors-in-a-calabrian-population-and-their-effects-on-dementia
#14
Raffaele Maletta, Nicoletta Smirne, Livia Bernardi, Maria Anfossi, Maura Gallo, Maria Elena Conidi, Rosanna Colao, Gianfranco Puccio, Sabrina A M Curcio, Valentina Laganà, Francesca Frangipane, Chiara Cupidi, Maria Mirabelli, Franca Vasso, Giusi Torchia, Maria G Muraca, Raffaele Di Lorenzo, Giuseppina Rose, Alberto Montesanto, Giuseppe Passarino, Amalia C Bruni
BACKGROUND: Several genetic variants playing a key role in cholesterol levels, blood pressure, and vascular dysfunction influence the risk of Alzheimer's disease (AD) and vascular dementia (VaD). The many meta-analysis studies carried out on large numbers of samples in different populations have not provided clear results to date, because a trans-ethnic shift of risk genotypes in different populations is often observed. OBJECTIVES: To determine genotypes allele frequencies of the polymorphisms most frequently identified to be correlated with cardio-cerebrovascular disease and AD in a Southern Italy population and to investigate their possible association with dementia...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29329954/comparative-myology-of-the-ankle-of-leopardus-wiedii-and-l-geoffroyi-carnivora-felidae-functional-consistency-with-osteology-locomotor-habits-and-hunting-in-captivity
#15
Miriam M Morales, S Rocío Moyano, Agustina M Ortiz, Marcos D Ercoli, Luis I Aguado, Sergio A Cardozo, Norberto P Giannini
Leopardus wiedii (margay) is the only arboreal Neotropical felid able to climb head-first down trees, due to its ability to rotate its tarsal joint 180°. A closely related, similar-sized species, L. geoffroyi (Geoffroy's cat) exhibits more typical terrestrial habits and lacks the arboreal capabilities of L. wiedii. There is osteological evidence that supports a mechanical specialization of L. wiedii's tarsal joint for inversion, but there have been no studies on the myology of this specialization. Based on comparative gross-anatomy dissections of zeugo- and autopodial muscles related to the ankle joint of one margay specimen and two Geoffroýs cats, we identified myological specializations of L...
December 26, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/29329573/female-genital-mutilation-cutting-in-italy-an%C3%A2-enhanced-estimation-for-first-generation-migrant-women-based-on-2016-survey-data
#16
Livia Elisa Ortensi, Patrizia Farina, Els Leye
BACKGROUND: Migration flows of women from Female Genital Mutilation/Cutting practicing countries have generated a need for data on women potentially affected by Female Genital Mutilation/Cutting. This paper presents enhanced estimates for foreign-born women and asylum seekers in Italy in 2016, with the aim of supporting resource planning and policy making, and advancing the methodological debate on estimation methods. METHODS: The estimates build on the most recent methodological development in Female Genital Mutilation/Cutting direct and indirect estimation for Female Genital Mutilation/Cutting non-practicing countries...
January 12, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29327955/co-occurrence-of-mycoplasma-species-and-pigeon-herpesvirus-1-infection-in-racing-pigeons-columba-livia
#17
Tom Hellebuyck, Stephan Göbel, Frank Pasmans, Connie Adriaensen, An Martel
Oropharyngeal swab samples were collected from 438 live racing pigeons ( Columba livia), with and without signs of respiratory disease, that were housed in 220 lofts in 3 provinces in the western part of the Netherlands. Polymerase chain reaction (PCR) was used to identify Mycoplasma species and pigeon herpesvirus-1 (PHV-1) from the samples. In 8.6% of the pigeon lofts tested, signs of respiratory disease were present in pigeons at sampling, and in 30.9% of the sampled pigeon lofts, respiratory signs were observed in pigeons during the 6-month period immediately before sampling...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29327345/serum-lipoprotein-a-predicts-acute-coronary-syndromes-in-patients-with-severe-carotid-stenosis
#18
Fabio Rigamonti, Federico Carbone, Fabrizio Montecucco, Aldo Bonaventura, Luca Liberale, Fabienne Burger, Aline Roth, Maria Bertolotto, Giovanni Spinella, Bianca Pane, Domenico Palombo, Aldo Pende, Franco Dallegri, François Mach, Stefano Bertolini, Livia Pisciotta
Different cut-off values of serum lipoprotein(a) [Lp(a)] were recently identified in order to better stratify cardiovascular risk categories. Both pathophysiological and prognostic values of Lp(a) remain unclear. Here, the prognostic value of Lp(a) and its correlation with intraplaque features were assessed in patients with severe carotid artery stenosis undergoing endarterectomy (n=180). The cut-off value of 10 mg/dL for serum Lp(a) was selected to predict 24-month follow-up acute coronary syndrome (ACS). In addition, the association between serum Lp(a) and intraplaque lipids, collagen, inflammatory and vascular cells was assessed...
January 11, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29326902/low-intensity-training-provokes-adaptive-extracellular-matrix-turnover-of-a-muscular-dystrophy-model
#19
Thaís P Gaiad, Murilo X Oliveira, Adalfredo R Lobo, Lívia R Libório, Priscilla A F Pinto, Danielle C Fernandes, Ana Paula Santos, Carlos Eduardo Ambrósio, Alex Sander D Machado
Recommendations of therapeutic exercise in Duchenne muscular dystrophy are still controversial. The hypothesis that a low-intensity training (LIT) protocol leads to muscle adaptations on mdx mice model was tested. Dystrophic male mice with 8 weeks old were separated in exercised (mdxE, n= 8) and sedentary (mdxC, n= 8) groups. Wild-type mice were used as control (WT, n= 8) group. Exercised group underwent a LIT protocol (9 m/min, 30 min, 3 days/wk, 60 days) on a horizontal treadmill. At day 60 all animals were analyzed regarding parameters of markers of muscle lesion and extracellular matrix turnover of muscle tissue by collagens fibers on tibial anterior muscle...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29326362/-18f-pbr111-pet-imaging-in-healthy-controls-and-schizophrenia-test-retest-reproducibility-and-quantification-of-neuroinflammation
#20
Julie Ottoy, Livia De Picker, Jeroen Verhaeghe, Steven Deleye, Leonie Wyffels, Lauren Kosten, Bernard Sabbe, Violette Coppens, Maarten Timmers, Luc Van Nueten, Sarah Ceyssens, Sigrid Stroobants, Manuel Morrens, Steven Staelens
Activated microglia express the translocator protein (TSPO) on the outer mitochondrial membrane. 18F-PBR111 is a second-generation positron emission tomography (PET) ligand that specifically binds the TSPO, allowing in-vivo visualization and quantification of neuroinflammation. The aim of this study is to evaluate if the test-retest variability of 18F-PBR111 in healthy controls is acceptable to detect a psychosis-associated neuroinflammatory signal in schizophrenia. Methods: Dynamic 90-min 18F-PBR111 scans were obtained in 17 healthy male controls (HC) and 11 male schizophrenia patients during a psychotic episode (SP)...
January 11, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
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