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https://www.readbyqxmd.com/read/28102842/zika-virus-elicits-p53-activation-and-genotoxic-stress-in-human-neural-progenitors-similar-to-mutations-involved-in-severe-forms-of-genetic-microcephaly-and-p53
#1
Vincent El Ghouzzi, Federico T Bianchi, Ivan Molineris, Bryan C Mounce, Gaia E Berto, Malgorzata Rak, Sophie Lebon, Laetitia Aubry, Chiara Tocco, Marta Gai, Alessandra Ma Chiotto, Francesco Sgrò, Gianmarco Pallavicini, Etienne Simon-Loriere, Sandrine Passemard, Marco Vignuzzi, Pierre Gressens, Ferdinando Di Cunto
No abstract text is available yet for this article.
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102089/disulfiram-moderately-restores-impaired-hepatic-redox-status-of-rats-subchronically-exposed-to-cadmium
#2
Aida Begic, Ana Djuric, Milica Ninkovic, Ivana Stevanovic, Dragan Djurdjevic, Milos Pavlovic, Katarina Jelic, Ana Pantelic, Goran Zebic, Bratislav Dejanovic, Ivan Stanojevic, Danilo Vojvodic, Petar Milosavljevic, Mirjana Djukic, Luciano Saso
Examination of cadmium (Cd) toxicity and disulfiram (DSF) effect on liver was focused on oxidative stress (OS), bioelements status, morphological and functional changes. Male Wistar rats were intraperitoneally treated with 1 mg CdCl2/kg BW/day; orally with 178.5 mg DSF/kg BW/day for 1, 3, 10 and 21 days; and co-exposed from 22nd to 42nd day. The co-exposure nearly restored previously suppressed total superoxide dismutase (SOD), catalase (CAT) and increased glutathione peroxidase (GPx) activities; increased previously reduced glutathione reductase (GR) and total glutathione-S-transferase (GST) activities; reduced previously increased superoxide anion radical (O2(·-)) and malondialdehyde (MDA) levels; increased zinc (Zn) and iron (Fe), and decreased copper (Cu) (yet above control value), while magnesium (Mg) was not affected; and decreased serum alanine aminotransferases (ALT) levels...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28102082/characterization-of-the-molecular-mechanisms-underlying-the-chronic-phase-of-stroke-in-a-cynomolgus-monkey-model-of-induced-cerebral-ischemia
#3
Henry C H Law, Samuel S W Szeto, Quan Quan, Yun Zhao, Zaijun Zhang, Olga Krakovska, Leong Ting Lui, Chengyou Zheng, Simon Ming Yuen Lee, K W Michael Siu, Yuqiang Wang, Ivan K Chu
Stroke is one of the main causes of mortality and long-term disability worldwide. The pathophysiological mechanisms underlying this disease are not well understood, particularly in the chronic phase after the initial ischemic episode. In this study, a Macaca fascicularis stroke model consisting of two sample groups, as determined by MRI-quantified infarct volumes as a measure of the stroke severity 28 days after the ischemic episode, was evaluated using qualitative and quantitative proteomics analyses. By using multiple online multidimensional liquid chromatography platforms, 8790 non-redundant proteins that condensed to 5223 protein groups at 1% global false discovery rate (FDR)...
January 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28101411/simultaneous-multimodal-ophthalmic-imaging-using-swept-source-spectrally-encoded-scanning-laser-ophthalmoscopy-and-optical-coherence-tomography
#4
Joseph D Malone, Mohamed T El-Haddad, Ivan Bozic, Logan A Tye, Lucas Majeau, Nicolas Godbout, Andrew M Rollins, Caroline Boudoux, Karen M Joos, Shriji N Patel, Yuankai K Tao
Scanning laser ophthalmoscopy (SLO) benefits diagnostic imaging and therapeutic guidance by allowing for high-speed en face imaging of retinal structures. When combined with optical coherence tomography (OCT), SLO enables real-time aiming and retinal tracking and provides complementary information for post-acquisition volumetric co-registration, bulk motion compensation, and averaging. However, multimodality SLO-OCT systems generally require dedicated light sources, scanners, relay optics, detectors, and additional digitization and synchronization electronics, which increase system complexity...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28100585/fast-and-accurate-de-novo-genome-assembly-from-long-uncorrected-reads
#5
Robert Vaser, Ivan Sovic, Niranjan Nagarajan, Mile Sikic
The assembly of long reads from Pacific Biosciences and Oxford Nanopore Technologies typically requires resource intensive error correction and consensus generation steps to obtain high quality assemblies. We show that the error correction step can be omitted and high quality consensus sequences can be generated efficiently with a SIMD accelerated, partial order alignment based stand-alone consensus module called Racon. Based on tests with PacBio and Oxford Nanopore datasets we show that Racon coupled with Miniasm enables consensus genomes with similar or better quality than state-of-the-art methods while being an order of magnitude faster...
January 18, 2017: Genome Research
https://www.readbyqxmd.com/read/28099858/mucosal-microbes-mitigate-maladies
#6
Ivan Vujkovic-Cvijin, Steven G Deeks
Understanding the factors that promote or prevent HIV transmission remains a critical component of the global battle against HIV/AIDS. Gosmann et al. (2017) reveal a putative role for the vaginal microbiome in modulating heterosexual transmission of HIV, uncovering a potential strategy for protecting women from acquisition of the virus.
January 17, 2017: Immunity
https://www.readbyqxmd.com/read/28099636/use-of-reactive-hyperemia-peripheral-arterial-tonometry-and-circulating-biological-markers-to-predict-outcomes-in-sepsis
#7
Vandack Nobre, Thiago Bragança Ataíde, Luisa Caldeira Brant, Clara Rodrigues Oliveira, Lucas Vieira Rodrigues, Antonio Luiz Pinho Ribeiro, Fernanda Barbosa Lopes, Ivan Euclides Saraiva, Marcus Vinícius Andrade
Objective: To evaluate the usefulness and prognostic value of reactive hyperemia - peripheral arterial tonometry in patients with sepsis. Moreover, we investigated the association of reactive hyperemia - peripheral arterial tonometry results with serum levels of certain inflammatory molecules. Methods: Prospective study, conducted in an 18-bed mixed intensive care unit for adults. The exclusion criteria included severe immunosuppression or antibiotic therapy initiated more than 48 hours before assessment...
October 2016: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/28099507/correlations-of-behavioral-deficits-with-brain-pathology-assessed-through-longitudinal-mri-and-histopathology-in-the-hdhq150-q150-mouse-model-of-huntington-s-disease
#8
Ivan Rattray, Edward J Smith, William R Crum, Thomas A Walker, Richard Gale, Gillian P Bates, Michel Modo
A variety of mouse models have been developed that express mutant huntingtin (mHTT) leading to aggregates and inclusions that model the molecular pathology observed in Huntington's disease. Here we show that although homozygous HdhQ150 knock-in mice developed motor impairments (rotarod, locomotor activity, grip strength) by 36 weeks of age, cognitive dysfunction (swimming T maze, fear conditioning, odor discrimination, social interaction) was not evident by 94 weeks. Concomitant to behavioral assessments, T2-weighted MRI volume measurements indicated a slower striatal growth with a significant difference between wild type (WT) and HdhQ150 mice being present even at 15 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28099076/extension-of-the-avian-host-range-of-collyriclosis-in-europe
#9
Stamatios A Tahas, Anastasia Diakou, Monika Dressel, Samuel Frei, Fábia M Pinto Azevedo, Maria V Mena Casero, Carla Maia, Paula Grest, Felix Grimm, Jiljí Sitko, Ivan Literak
We describe cases of collyriclosis in apodiform and passeriform birds in Portugal, Switzerland, and Germany. We extend the host range of Collyriculm faba to include apodiform birds ( Apus apus , Apus melba , and Apus pallidus ) and the passerine Sitta europaea (Eurasian Nuthatch). Infections varied in severity from an incidental finding to severe debilitation and death. The infection route remains unclear with the apparent absence from Germany, Portugal, and Switzerland of the first intermediate host of C. faba, the aquatic gastropod Bythinella austriaca, implying that other organisms might be involved in the parasite's life cycle...
January 18, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28099013/dynamic-nuclear-polarization-signal-enhancement-with-high-affinity-biradical-tags
#10
Rivkah Tamar Rogawski, Ivan V Sergeyev, Yongjun Li, Maria Francesca Ottaviani, Virginia W Cornish, Ann E McDermott
Dynamic nuclear polarization is an emerging technique for sensitizing solid state NMR experiments by transferring polarization from electrons to nuclei. Stable biradicals, the polarization source for the cross effect mechanism, are typically co-dissolved at millimolar concentrations with proteins of interest. Here we describe the high-affinity biradical tag TMP-T, created by covalently linking trimethoprim, a nanomolar affinity ligand of dihydrofolate reductase (DHFR), to the biradical polarizing agent TOTAPOL...
January 18, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28098948/phosphorus-acquisition-efficiency-in-arbuscular-mycorrhizal-maize-is-correlated-with-the-abundance-of-root-external-hyphae-and-the-accumulation-of-transcripts-encoding-pht1-phosphate-transporters
#11
Ruairidh J H Sawers, Simon F Svane, Clement Quan, Mette Grønlund, Barbara Wozniak, Mesfin-Nigussie Gebreselassie, Eliécer González-Muñoz, Ricardo A Chávez Montes, Ivan Baxter, Jerome Goudet, Iver Jakobsen, Uta Paszkowski
Plant interactions with arbuscular mycorrhizal fungi have long attracted interest for their potential to promote more efficient use of mineral resources in agriculture. Their use, however, remains limited by a lack of understanding of the processes that determine the outcome of the symbiosis. In this study, the impact of host genotype on growth response to mycorrhizal inoculation was investigated in a panel of diverse maize lines. A panel of 30 maize lines was evaluated with and without inoculation with arbuscular mycorrhizal fungi...
January 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28098523/effects-of-psychological-distance-and-need-for-cognitive-closure-on-impression-formation
#12
Ivan Tomić, Mirjana Tonković, Dragutin Ivanec
Based on theoretical and empirical similarities between Construal level theory of psychological distance and the Need for cognitive closure (NFC) theory, it could be hypothesized that psychological distance and NFC represent constructs that overlap to some degree. Since both theories describe judgmental behavior in terms of schematic processing, we hypothesized that primacy effect, a schema-driven phenomenon, is strengthened under the heightened NFC and psychological distance. We tested this hypothesis in an impression formation experiment while manipulating psychological distance and measuring NFC...
January 2017: Journal of General Psychology
https://www.readbyqxmd.com/read/28098256/dopamine-promotes-nmda-receptor-hypofunction-in-the-retina-through-d1-receptor-mediated-csk-activation-src-inhibition-and-decrease-of-glun2b-phosphorylation
#13
Renato Socodato, Felipe N Santiago, Camila C Portugal, Ivan Domith, Thaísa G Encarnação, Erick C Loiola, Ana L M Ventura, Marcelo Cossenza, João B Relvas, Newton G Castro, Roberto Paes-de-Carvalho
Dopamine and glutamate are critical neurotransmitters involved in light-induced synaptic activity in the retina. In brain neurons, dopamine D1 receptors (D1Rs) and the cytosolic protein tyrosine kinase Src can, independently, modulate the behavior of NMDA-type glutamate receptors (NMDARs). Here we studied the interplay between D1Rs, Src and NMDARs in retinal neurons. We reveal that dopamine-mediated D1R stimulation provoked NMDAR hypofunction in retinal neurons by attenuating NMDA-gated currents, by preventing NMDA-elicited calcium mobilization and by decreasing the phosphorylation of NMDAR subunit GluN2B...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098069/simultaneous-echinococcal-cyst-and-hepatocellular-carcinoma-without-underlying-liver-disease
#14
Ivan Romic, Bosko Romic, Igor Petrovic
No abstract text is available yet for this article.
December 9, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28096331/one-step-design-of-a-stable-variant-of-the-malaria-invasion-protein-rh5-for-use-as-a-vaccine-immunogen
#15
Ivan Campeotto, Adi Goldenzweig, Jack Davey, Lea Barfod, Jennifer M Marshall, Sarah E Silk, Katherine E Wright, Simon J Draper, Matthew K Higgins, Sarel J Fleishman
Many promising vaccine candidates from pathogenic viruses, bacteria, and parasites are unstable and cannot be produced cheaply for clinical use. For instance, Plasmodium falciparum reticulocyte-binding protein homolog 5 (PfRH5) is essential for erythrocyte invasion, is highly conserved among field isolates, and elicits antibodies that neutralize in vitro and protect in an animal model, making it a leading malaria vaccine candidate. However, functional RH5 is only expressible in eukaryotic systems and exhibits moderate temperature tolerance, limiting its usefulness in hot and low-income countries where malaria prevails...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095415/klk5-and-klk7-ablation-fully-rescues-lethality-of-netherton-syndrome-like-phenotype
#16
Petr Kasparek, Zuzana Ileninova, Olga Zbodakova, Ivan Kanchev, Oldrich Benada, Karel Chalupsky, Maria Brattsand, Inken M Beck, Radislav Sedlacek
Netherton syndrome (NS) is a severe skin disease caused by the loss of protease inhibitor LEKTI, which leads to the dysregulation of epidermal proteases and severe skin-barrier defects. KLK5 was proposed as a major protease in NS pathology, however its inactivation is not sufficient to rescue the lethal phenotype of LEKTI-deficient mice. In this study, we further elucidated the in vivo roles of the epidermal proteases in NS using a set of mouse models individually or simultaneously deficient for KLK5 and KLK7 on the genetic background of a novel NS-mouse model...
January 17, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28095376/review-of-decision-making-in-game-tasks-in-elderly-participants-with-alzheimer-disease-and-mild-cognitive-impairment
#17
Alaise Silva Santos de Siqueira, Juliana Emy Yokomizo, Wilson Jacob-Filho, Mônica Sanches Yassuda, Ivan Aprahamian
BACKGROUND: Changes in decision-making (DM) have recently been investigated in patients with Alzheimer disease (AD) or mild cognitive impairment (MCI). DM is highly relevant to everyday functioning and autonomy. It relies on several cognitive abilities, such as semantic and episodic memory, as well as aspects of executive functioning. We conducted a systematic review of DM in older adults with MCI and AD. SUMMARY: Only 5 studies whose main objective was to evaluate the DM performance were selected...
January 18, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28095372/impaired-mitochondrial-respiration-in-large-cerebral-arteries-of-rats-with-type-2-diabetes
#18
Ivan Merdzo, Ibolya Rutkai, Venkata N L R Sure, Catherine A McNulty, Prasad V G Katakam, David W Busija
Mitochondrial dysfunction has been suggested as a potential underlying cause of pathological conditions associated with type 2 diabetes (T2DM). We have previously shown that mitochondrial respiration and mitochondrial protein levels were similar in the large cerebral arteries of insulin-resistant Zucker obese rats and their lean controls. In this study, we extend our investigations into the mitochondrial dynamics of the cerebral vasculature of 14-week-old Zucker diabetic fatty obese (ZDFO) rats with early T2DM...
January 18, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28095289/prevalence-of-hpv-infection-in-croatian-men-during-a-12-year-period-a-comparative-study-of-external-genital-and-urethral-swabs
#19
Zora Profozić, Tomislav Meštrović, Ivan Savić, Velimir Profozić
AIM: The aim of the study was to compare the prevalence and distribution of both low-risk and high-risk HPV infection of the urethra and outer genital region in Croatian men. Thus far there is a consensus that sampling the coronal sulcus and glans of the penis is essential for adequately assessing HPV status in men but less agreement is noted for urethral sampling. METHODS: External genital brushing and urethral swabs were taken from 1,342 men during a 12-year period and tested with the hc2 HPV DNA Test using Hybrid Capture 2 technology...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28095199/multiway-array-decomposition-of-eeg-spectrum-implications-of-its-stability-for-the-exploration-of-large-scale-brain-networks
#20
Mareček Radek, Martin Lamoš, René Labounek, Marek Bartoň, Tomáš Slavíček, Michal Mikl, Ivan Rektor, Milan Brázdil
Multiway array decomposition methods have been shown to be promising statistical tools for identifying neural activity in the EEG spectrum. They blindly decompose the EEG spectrum into spatial-temporal-spectral patterns by taking into account inherent relationships among signals acquired at different frequencies and sensors. Our study evaluates the stability of spatial-temporal-spectral patterns derived by one particular method, parallel factor analysis (PARAFAC). We focused on patterns' stability over time and in population and divided the complete data set containing data from 50 healthy subjects into several subsets...
January 17, 2017: Neural Computation
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