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https://www.readbyqxmd.com/read/28930029/berlin-squirrelpox-virus-a-new-poxvirus-in-red-squirrels-berlin-germany
#1
Gudrun Wibbelt, Simon H Tausch, Piotr W Dabrowski, Olivia Kershaw, Andreas Nitsche, Livia Schrick
Near Berlin, Germany, several juvenile red squirrels (Sciurus vulgaris) were found with moist, crusty skin lesions. Histology, electron microscopy, and cell culture isolation revealed an orthopoxvirus-like infection. Subsequent PCR and genome analysis identified a new poxvirus (Berlin squirrelpox virus) that could not be assigned to any known poxvirus genera.
October 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28928163/high-bcr-abl-gusis-levels-at-diagnosis-of-chronic-phase-cml-are-associated-with-unfavorable-responses-to-standard-dose-imatinib
#2
Paolo Vigneri, Fabio Stagno, Stefania Stella, Alessandra Cupri, Stefano Forte, Michele Massimino, Agostino Antolino, Sergio Siragusa, Donato Mannina, Stefana S Impera, Caterina Musolino, Alessandra Malato, Giuseppe Mineo, Carmela Tomaselli, Pamela Murgano, Maurizio Musso, Fortunato Morabito, Stefano Molica, Bruno Martino, Livia Manzella, Martin C Müller, Andreas Hochhaus, Francesco Di Raimondo
PURPOSE: The approval of second-generation tyrosine kinase inhibitors (TKIs) for the first line treatment of chronic myeloid leukemia (CML) has generated an unmet need for baseline molecular parameters associated with inadequate Imatinib responses. EXPERIMENTAL DESIGN: We correlated BCR-ABL/GUSIS and BCR-ABL/ABLIS transcripts at diagnosis with the outcome - defined by the 2013 European LeukemiaNet recommendations - of 272 newly diagnosed CML patients receiving Imatinib 400 mg/daily...
September 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28926500/occipital-lobe-and-posterior-cingulate-perfusion-in-the-prediction-of-dementia-with-lewy-body-pathology-in-a-clinical-sample
#3
Angus M J Prosser, Livia Tossici-Bolt, Christopher M Kipps
OBJECTIVE: The aim of this study was to investigate the diagnostic value of occipital lobe and posterior cingulate perfusion in predicting dopamine transporter imaging outcome using a quantitative measure of analysis. PATIENTS AND METHODS: In total, 99 patients with cognitive complaints who had undergone both technetium-99m-hexamethylpropyleneamine oxime single-photon emission computed tomography (Tc-HMPAO SPECT) and I ioflupane (I-FP-CIT also called DaTSCAN) imaging in a dementia diagnostic center were analyzed...
September 18, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28925991/a-multiscale-imaging-and-modelling-dataset-of-the-human-inner-ear
#4
Nicolas Gerber, Mauricio Reyes, Livia Barazzetti, Hans Martin Kjer, Sergio Vera, Martin Stauber, Pavel Mistrik, Mario Ceresa, Nerea Mangado, Wilhelm Wimmer, Thomas Stark, Rasmus R Paulsen, Stefan Weber, Marco Caversaccio, Miguel A González Ballester
Understanding the human inner ear anatomy and its internal structures is paramount to advance hearing implant technology. While the emergence of imaging devices allowed researchers to improve understanding of intracochlear structures, the difficulties to collect appropriate data has resulted in studies conducted with few samples. To assist the cochlear research community, a large collection of human temporal bone images is being made available. This data descriptor, therefore, describes a rich set of image volumes acquired using cone beam computed tomography and micro-CT modalities, accompanied by manual delineations of the cochlea and sub-compartments, a statistical shape model encoding its anatomical variability, and data for electrode insertion and electrical simulations...
September 19, 2017: Scientific Data
https://www.readbyqxmd.com/read/28925880/antileukemic-properties-of-sesquiterpene-lactones-a-systematic-review
#5
Elaine da Silva Castro, Lívia Azeredo Alves Antunes, Jonathas Felipe Revoredo Lobo, Norman Arthur Ratcliffe, Ricardo Moreira Borges, Leandro Rocha, Patrícia Federal Burth, Lidia Maria Fonte Amorim
This review summarizes the reported molecular mechanisms underlying the antileukemic property of Sesquiterpene Lactones (SLs). This systematic review was registered in the PROSPERO database and conducted following the PRISMA Statements. The MeSH terms, Sesquiterpenes, Lactones and Leukemia were used in four databases (Pubmed, Web of Science, Scopus and Bireme). There were 281 studies selected, but after exclusions, due to replication (n = 172) or not following PECOS criteria (n = 24), 148 studies remained. Of the 148 articles, only 22 were submitted to quality assessment and were scored in high level if more than two techniques, to elucidate antileukemic proprieties, were described, and then data were extracted...
September 18, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28925555/elucidation-of-complexity-and-prediction-of-interactions-in-microbial-communities
#6
REVIEW
Cristal Zuñiga, Livia Zaramela, Karsten Zengler
Microorganisms engage in complex interactions with other members of the microbial community, higher organisms as well as their environment. However, determining the exact nature of these interactions can be challenging due to the large number of members in these communities and the manifold of interactions they can engage in. Various omic data, such as 16S rRNA gene sequencing, shotgun metagenomics, metatranscriptomics, metaproteomics and metabolomics, have been deployed to unravel the community structure, interactions and resulting community dynamics in situ...
September 19, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28923414/a-proteomic-approach-to-the-mechanisms-underlying-activation-of-aluminium-resistance-in-roots-of-urochloa-decumbens
#7
Catalina Arroyave, Roser Tolrà, Livia Chaves, Marcelo Claro de Souza, Juan Barceló, Charlotte Poschenrieder
The mechanisms of extreme Al-resistance in Urochloa decumbens are not established. Full resistance expression requires a lag time of 72-96h and is preceded by a sensitive phase (24-48h) with Al-induced root growth inhibition. The aim here was to identify key processes of the activation phase of Al-resistance analysing both root exudates and comparative root proteome. Samples were taken after 0, 24 and 96h exposure to 0 or 200μM Al. Al-induced stimulation of citrate and oxalate efflux was limited to the sensitive phase...
September 10, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28922611/the-effects-of-cryopreservation-on-different-passages-of-fibroblast-cell-culture-in-brown-brocket-deer-mazama-gouazoubira
#8
Lívia C Magalhães, Maajid H Bhat, Jeferson L S Freitas, Luciana M Melo, Dárcio I A Teixeira, Luiz C A Pinto, Lília M C Câmara, José M B Duarte, Vicente J F Freitas
The brown brocket deer Mazama gouazoubira is 1 of the 10 recognized brocket deer of the Neotropical region. Recently, this species has suffered a population decline due to current threats, mainly poaching and habitat loss. Several studies have shown that some endangered species can benefit from interspecies somatic cell nuclear transfer technology through the use of their somatic cells, such as the fibroblasts. Thus, the aim of this study was to verify the viability and the effect of cryopreservation on fibroblasts after several passages...
September 18, 2017: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/28917315/protective-and-risk-factors-associated-with-the-presence-of-toxocara-spp-eggs-in-dog-hair
#9
Yslla Fernanda Fitz Balo Merigueti, Vamilton Alvares Santarém, Lívia Magosso Ramires, Aline da Silveira Batista, Layron Vinícus da Costa Beserra, Amábyle Lopes Nuci, Talita Mirella de Paula Esposte
Toxocariasis is one of the most prevalent parasitic zoonoses in the world. The disease is principally caused by the nematode Toxocara canis, whose definitive host is the dog. The transmission of toxocariasis to humans is mainly caused by accidental ingestion of embryonated eggs of the parasite, present in the soil. Studies have shown that dog hair has the capacity to harbor eggs of the parasite and represents a risk for transmission of the zoonosis. The objective of the present study was to evaluate the frequency and factors associated with the contamination of dog hair by Toxocara spp...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28914428/anhydroecgonine-methyl-ester-aeme-a-product-of-cocaine-pyrolysis-impairs-spatial-working-memory-and-induces-striatal-oxidative-stress-in-rats
#10
Elisa Fraga Gomes, Ingryd Fortes Souza Lipaus, Cleciane Waldetário Martins, Andrezza Menezes Araújo, Josidéia Barreto Mendonça, Fabrício Souza Pelição, Evandro Carlos Lebarch, Lívia Carla de Melo Rodrigues, Ester Miyuki Nakamura-Palacios
When burning crack cocaine, the pyrolysis of cocaine generates anhydroecgonine methyl ester (AEME). AEME has been shown to be highly neurotoxic but its effects on cognitive function and oxidative stress are still unknown. Thus, this study investigated the effects of AEME on spatial working memory and on parameters of oxidative stress in the prefrontal cortex, hippocampus, and striatum. First, 18 well-trained rats in 8-arm radial maze (8-RM) procedures received acute intracerebroventricular (icv) administration of AEME at doses of 10, 32, or 100 μg or saline (SAL) in a counterbalanced order and were tested 5 min later in 1-h delayed tasks in the 8-RM...
September 15, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28913707/endocytic-pathways-involved-in-plga-nanoparticle-uptake-by-grapevine-cells-and-role-of-cell-wall-and-membrane-in-size-selection
#11
Cleofe Palocci, Alessio Valletta, Laura Chronopoulou, Livia Donati, Marco Bramosanti, Elisa Brasili, Barbara Baldan, Gabriella Pasqua
PLGA NPs' cell uptake involves different endocytic pathways. Clathrin-independent endocytosis is the main internalization route. The cell wall plays a more prominent role than the plasma membrane in NPs' size selection. In the last years, many studies on absorption and cell uptake of nanoparticles by plants have been conducted, but the understanding of the internalization mechanisms is still largely unknown. In this study, polydispersed and monodispersed poly(lactic-co-glycolic) acid nanoparticles (PLGA NPs) were synthesized, and a strategy combining the use of transmission electron microscopy (TEM), confocal analysis, fluorescently labeled PLGA NPs, a probe for endocytic vesicles (FM4-64), and endocytosis inhibitors (i...
September 14, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28912081/towards-understanding-rtms-mechanism-of-action-stimulation-of-the-dlpfc-causes-network-specific-increase-in-functional-connectivity
#12
Martin Tik, André Hoffmann, Ronald Sladky, Livia Tomova, Allan Hummer, Lucia Navarro de Lara, Henryk Bukowski, Jürgen Pripfl, Bharat Biswal, Claus Lamm, Christian Windischberger
Transcranial magnetic stimulation (TMS) is a powerful non-invasive technique for the modulation of brain activity. While the precise mechanism of action is still unknown, TMS is applied in cognitive neuroscience to establish causal relationships between stimulation and subsequent changes in cerebral function and behavioral outcome. In addition, TMS is an FDA-approved therapeutic agent in psychiatric disorders, especially major depression. Successful repetitive TMS in such disorders is usually applied over the left dorso-lateral prefrontal cortex (DLPFC) and treatment response mechanism was therefore supposed to be based on modulations in functional networks, particularly the meso-cortico-limbic reward circuit...
September 12, 2017: NeuroImage
https://www.readbyqxmd.com/read/28911206/identification-of-the-molecular-dysfunction-caused-by-glutamate-dehydrogenase-s445l-mutation-responsible-for-hyperinsulinism-hyperammonemia
#13
Mariagrazia Grimaldi, Melis Karaca, Livia Latini, Estelle Brioudes, Thomas Schalch, Pierre Maechler
Congenital hyperinsulinism/hyperammonemia (HI/HA) syndrome gives rise to unregulated protein-induced insulin secretion from pancreatic beta-cells, fasting hypoglycemia and elevated plasma ammonia levels. Mutations associated with HI/HA were identified in the Glud1 gene, encoding for glutamate dehydrogenase (GDH). We aimed at identifying the molecular causes of dysregulation in insulin secretion and ammonia production conferred by the most frequent HI/HA mutation Ser445Leu. Following transduction with adenoviruses carrying the human GDH-wild type or GDH-S445L-mutant gene, immunoblotting showed efficient expression of the transgenes in all the investigated cell types...
September 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28902515/theoretical-and-experimental-investigation-of-acidity-of-the-glutamate-receptor-antagonist-6-7-dinitro-1-4-dihydro-quinoxaline-2-3-dione-dnqx-and-its-possible-implication-in-glua2-binding
#14
Gutto Raffyson Silva de Freitas, Sara E Coelho, Norberto K V Monteiro, Jannyely Moreira Neri, Livia Nunes Cavalcanti, Josiel B Domingos, Davi S Vieira, Miguel A F de Souza, Fabrício G Menezes
The acidity of organic compounds is highly relevant to understanding several biological processes. Although the relevance and challenges in estimating pKa values of organic acids is recognized by several reported works in the literature, there is a lack in determining the acidity of amides. This paper presents an experimental/theoretical combined investigation on the acid dissociation of the compound 6,7-dinitro-1,4-dihydro-quinoxaline-2,3-dione (DNQX), a well-established antagonist of ionotropic glutamate receptor GluA2...
September 13, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28902296/an-unusual-case-of-bacillary-angiomatosis-in-the-oral-cavity-of-an-aids-patient-who-had-no-concomitant-tegumentary-lesions-case-report-and-review
#15
Walter de Araujo Eyer-Silva, Pedro Eugênio Mendes Arena Soares, Marcelo Costa Velho Mendes de Azevedo, Guilherme Almeida Rosa da Silva, Dario José Hart Pontes Signorini, Rogerio Neves-Motta, Jorge Francisco da Cunha Pinto, Lívia Machado Moura, Rodrigo Panno Basílio-de-Oliveira, Luciana Ferreira de Araujo, Alexsandra Rodrigues de Mendonça Favacho, Elba Regina Sampaio Lemos
Bacillary angiomatosis (BA) is an angioproliferative disease of immunocompromised patients that usually presents as vascular tumors in the skin and subcutaneous tissues. It is caused by chronic infections with either Bartonella henselae or B. quintana. Oral cavity BA is exceedingly rare and even rarer without simultaneous cutaneous disease. We report herein the case of a 51-year-old HIV-infected man who presented severe odynophagia and an eroded lesion on the hard palate that progressed to an oronasal fistula...
August 24, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28902260/hepatozoon-caimani-in-caiman-crocodilus-yacare-crocodylia-alligatoridae-from-north-pantanal-brazil
#16
Andréa Bouer, Marcos Rogério André, Luiz Ricardo Gonçalves, Mayara de Cássia Luzzi, Juliana Paula de Oliveira, Adriana Carlos Rodrigues, Alessandro de Melo Varani, Vitor Fernandes Oliveira de Miranda, Lívia Perles, Karin Werther, Rosangela Zacarias Machado
Hepatozoon species are the most common intracellular hemoparasite found in reptiles. Hepatozoon caimani, whose vectors are Culex mosquitoes, has been detected in a high prevalence among caimans in Brazil by blood smears examinations. The present work aimed to detect and characterize the Hepatozoon spp. found in 33 caimans (24 free-ranging and 9 captive; 28 males and 5 females) (Caiman crocodilus yacare) sampled at Poconé, North Pantanal, state of Mato Grosso, Brazil, using blood smears examinations and molecular techniques...
August 24, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28902237/bonding-efficiency-and-durability-current-possibilities
#17
Adriana Bona Matos, Livia Tosi Trevelin, Beatriz Togoro Ferreira da Silva, Luciana Fávaro Francisconi-Dos-Rios, Luciana Kfouri Siriani, Marcio Vivan Cardoso
Bonding plays a major role in dentistry nowadays. Dental adhesives are used in association with composites to solve many restorative issues. However, the wide variety of bonding agents currently available makes it difficult for clinicians to choose the best alternative in terms of material and technique, especially when different clinical situations are considered. Moreover, although bonding agents allow for a more conservative restorative approach, achieving a durable adhesive interface remains a matter of concern, and this mainly due to degradation of the bonding complex in the challenging oral environment...
August 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28902235/trends-in-restorative-composites-research-what-is-in-the-future
#18
Mariel Soeiro Maas, Yvette Alania, Livia Camargo Natale, Marcela Charantola Rodrigues, David Christopher Watts, Roberto Ruggiero Braga
Clinical trials have identified secondary caries and bulk fracture as the main causes for composite restoration failure. As a measure to avoid frequent reinterventions for restoration replacement, composites with some sort of defense mechanism against biofilm formation and demineralization, as well as materials with lower susceptibility to crack propagation are necessary. Also, the restorative procedure with composites are very time-consuming and technically demanding, particularly concerning the application of the adhesive system...
August 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28900851/tributyltin-chloride-disrupts-aortic-vascular-reactivity-and-increases-reactive-oxygen-species-production-in-female-rats
#19
Carolina Falcão Ximenes, Samya Mere Lima Rodrigues, Priscila Lang Podratz, Eduardo Merlo, Julia Fernandez Puñal de Araújo, Lívia Carla Melo Rodrigues, Juliana Barbosa Coitinho, Dalton Valentim Vassallo, Jones Bernardes Graceli, Ivanita Stefanon
Organotin compounds, such as tributyltin (TBT), are environment contaminants that induce bioaccumulation and have potential toxic effects on marine species and mammals. TBT have been banned by the International Maritime Organization in 2003. However, the assessment of butyltin and metal contents in marine sediments has demonstrated high residual levels of TBT in some cases exceeding 7000 ng Sn g(-1). The acceptable daily intake (ADI) level for TBT established by the World Health Organization is 0.5 μg/kg bw/day is based on genotoxicity, reproduction, teratogenicity, immunotoxicity, and mainly neurotoxicity...
September 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28900249/effect-of-efflux-pump-inhibition-on-pseudomonas-aeruginosa-transcriptome-and-virulence
#20
Giordano Rampioni, Cejoice Ramachandran Pillai, Francesca Longo, Roslen Bondì, Valerio Baldelli, Marco Messina, Francesco Imperi, Paolo Visca, Livia Leoni
Efflux pumps of the resistance-nodulation-cell-division (RND) family increase antibiotic resistance in many bacterial pathogens, representing candidate targets for the development of antibiotic adjuvants. RND pumps have also been proposed to contribute to bacterial infection, implying that efflux pump inhibitors (EPIs) could also act as anti-virulence drugs. Nevertheless, EPIs are usually investigated only for their properties as antibiotic adjuvants, while their potential anti-virulence activity is seldom taken into account...
September 12, 2017: Scientific Reports
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