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https://www.readbyqxmd.com/read/28107376/deletion-of-ph-regulator-pac-3-affects-cellulase-and-xylanase-activity-during-sugarcane-bagasse-degradation-by-neurospora-crassa
#1
Amanda Cristina Campos Antoniêto, Wellington Ramos Pedersoli, Lílian Dos Santos Castro, Rodrigo da Silva Santos, Aline Helena da Silva Cruz, Karoline Maria Vieira Nogueira, Rafael Silva-Rocha, Antonio Rossi, Roberto Nascimento Silva
Microorganisms play a vital role in bioethanol production whose usage as fuel energy is increasing worldwide. The filamentous fungus Neurospora crassa synthesize and secrete the major enzymes involved in plant cell wall deconstruction. The production of cellulases and hemicellulases is known to be affected by the environmental pH; however, the regulatory mechanisms of this process are still poorly understood. In this study, we investigated the role of the pH regulator PAC-3 in N. crassa during their growth on sugarcane bagasse at different pH conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28106320/classification-of-genes-standardized-clinical-validity-assessment-of-gene-disease-associations-aids-diagnostic-exome-analysis-and-reclassifications
#2
Erica D Smith, Kelly Radtke, Mari Rossi, Deepali N Shinde, Sourat Darabi, Dima El-Khechen, Zöe Powis, Katherine Helbig, Kendra Waller, Dorothy K Grange, Sha Tang, Kelly D Farwell Hagman
Ascertaining a diagnosis through exome sequencing can provide potential benefits to patients, insurance companies, and the healthcare system. Yet as diagnostic sequencing is increasingly employed, vast amounts of human genetic data are produced that need careful curation. We discuss methods for accurately assessing the clinical validity of gene-disease relationships to interpret new research findings in a clinical context and increase the diagnostic rate. The specifics of a gene-disease scoring system adapted for use in a clinical laboratory are described...
January 20, 2017: Human Mutation
https://www.readbyqxmd.com/read/28105744/multiclass-hcv-resistance-to-direct-acting-antiviral-failure-in-real-life-patients-advocates-for-tailored-second-line-therapies
#3
Velia C Di Maio, Valeria Cento, Ilaria Lenci, Marianna Aragri, Piera Rossi, Silvia Barbaliscia, Michela Melis, Gabriella Verucchi, Carlo F Magni, Elisabetta Teti, Ada Bertoli, FrancescoPaolo Antonucci, Maria C Bellocchi, Valeria Micheli, Chiara Masetti, Simona Landonio, Simona Francioso, Francesco Santopaolo, Adriano M Pellicelli, Vincenza Calvaruso, Laura Gianserra, Massimo Siciliano, Dante Romagnoli, Raffaele Cozzolongo, Antonio Grieco, Jacopo Vecchiet, Filomena Morisco, Manuela Merli, Giuseppina Brancaccio, Antonio Di Biagio, Elisabetta Loggi, Claudio M Mastroianni, Valeria Pace Palitti, Pierluigi Tarquini, Massimo Puoti, Gloria Taliani, Loredana Sarmati, Antonino Picciotto, Vincenzo Vullo, Nicola Caporaso, Maurizio Paoloni, Caterina Pasquazzi, Giuliano Rizzardini, Giustino Parruti, Antonio Craxì, Sergio Babudieri, Massimo Andreoni, Mario Angelico, Carlo F Perno, Francesca Ceccherini-Silberstein
BACKGROUND & AIMS: Despite the excellent efficacy of direct-acting antivirals (DAA) reported in clinical trials, virological failures can occur, often associated with the development of resistance-associated substitutions (RASs). This study aimed to characterize the presence of clinically relevant RASs to all classes in real-life DAA failures. METHODS: Of the 200 virological failures that were analyzed in 197 DAA-treated patients, 89 with pegylated-interferon+ribavirin (PegIFN+RBV) and 111 without (HCV-1a/1b/1g/2/3/4=58/83/1/6/24/25; 56...
January 20, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28104634/structural-connectivity-analysis-in-children-with-segmental-callosal-agenesis
#4
M Severino, D Tortora, B Toselli, S Uccella, M Traverso, G Morana, V Capra, E Veneselli, M M Fato, A Rossi
BACKGROUND AND PURPOSE: Segmental callosal agenesis is characterized by the absence of the intermediate callosal portion. We aimed to evaluate the structural connectivity of segmental callosal agenesis by using constrained spherical deconvolution tractography and connectome analysis. MATERIALS AND METHODS: We reviewed the clinical-radiologic features of 8 patients (5 males; mean age, 3.9 years). Spherical deconvolution and probabilistic tractography were performed on diffusion data...
January 19, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28104087/from-the-editor-s-desk-february-2017
#5
Richard Moreau, Ramon Bataller, Thomas Berg, Jessica Zucman-Rossi, Rajiv Jalan
No abstract text is available yet for this article.
February 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28103740/novel-functionalization-strategies-to-improve-drug-delivery-from-polymers
#6
Emanuele Mauri, Simonetta Papa, Maurizio Masi, Pietro Veglianese, Filippo Rossi
The utility of controlled and sustained release of drugs from polymeric systems, both bulk (hydrogels) and colloids (nanoparticles), is a key point that should be addressed. Unfortunately, classic delivery systems are essentially driven by diffusion, which is very quick due to the high concentration gradient present in the body. Area covered: This review provides an overview of functionalization strategies which have been used to reduce release rates by taking advantage of post-polymerization functionalization of polymers...
January 20, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28103272/prevalence-and-determinants-of-oral-human-papillomavirus-infection-in-500-young-adults-from-italy
#7
Valentina Lupato, Dana Holzinger, Daniela Höfler, Anna Menegaldo, Paolo Giorgi Rossi, Annarosa Del Mistro, Maria Cristina Da Mosto, Michael Pawlita, Paolo Boscolo-Rizzo
Although the prevalence of human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) is increasing in developed countries and becoming a relevant health issue, the natural history of oral HPV infection is still unclear. Estimating the infection's prevalence in specific populations and identifying risk factors can widen our understanding of its natural history and help to delineate appropriate prevention strategies. This study sought to (i) determine oral HPV prevalence and genotype distribution in a large series of young Italian adults, (ii) validate an oral rinse sampling/storage protocol, and (iii) pinpoint factors associated with oral HPV infection...
2017: PloS One
https://www.readbyqxmd.com/read/28102087/relationship-quality-of-persons-with-obstructive-sleep-apnoea-syndrome
#8
Francesco Tramonti, Michelangelo Maestri, Luca Carnicelli, Giulia Fava, Valentina Lombardi, Martina Rossi, Monica Fabbrini, Elisa Di Coscio, Elena Iacopini, Enrica Bonanni
In the field of sleep disorders, the quality of couple relationship is arousing increasing attention, given its implications for quality of life and treatment adherence. The aim of the present study was to evaluate relationship quality in a sample of treated or untreated patients with Obstructive Sleep Apnoea Syndrome. Eighty-seven patients were recruited in a hospital-based Centre for Sleep Medicine. Subjects were administered the Dyadic Adjustment Scale (DAS) to evaluate relationship quality, and the Epworth Sleepiness Scale (ESS)...
January 19, 2017: Psychology, Health & Medicine
https://www.readbyqxmd.com/read/28100595/determinants-of-viral-oncogenes-e6-e7-mrna-over-expression-in-a-population-based-large-sample-of-women-infected-by-high-risk-hpv-types
#9
Paolo Giorgi Rossi, Simonetta Bisanzi, Elena Allia, Alessandra Mongia, Francesca Carozzi, Anna Gillio-Tos, Laura De Marco, Guglielmo Ronco, Daniela Gustinucci, Annarosa Del Mistro, Helena Frayle, Anna Iossa, Giulia Fantacci, Giampaolo Pompei, Elena Cesarini, Simonetta Bulletti, Basilio Passamonti, Martina Rizzi, Maria Gabriella Penon, Alessandra Barca, Maria Benevolo
Cervical cancer screening by HPV-DNA testing with cytology triage is more effective than cytology testing. Compared to cytology, the HPV-DNA test higher sensitivity, that allows better protection with longer intervals, makes it necessary to triage the women with a positive result to compensate its lower specificity.We are conducting a large randomized clinical trial (New Technologies for Cervical Cancer 2, NTCC2) within organized population-based screening programs in Italy using HPV-DNA as primary screening test, to evaluate, by Aptima HPV Assay (Hologic), HPV E6-E7 mRNA as triage test in comparison to cytology...
January 18, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28099939/type-5-phosphodiesterase-regulates-glioblastoma-multiforme-aggressiveness-and-clinical-outcome
#10
Valeriana Cesarini, Maurizio Martini, Lucia Ricci Vitiani, Giovanni Luca Gravina, Silvia Di Agostino, Grazia Graziani, Quintino Giorgio D'Alessandris, Roberto Pallini, Luigi M Larocca, Pellegrino Rossi, Emmanuele A Jannini, Susanna Dolci
Expression of type 5 phosphodiesterase (PDE5), a cGMP-specific hydrolytic enzyme, is frequently altered in human cancer, but its specific role in tumorigenesis remains controversial. Herein, by analyzing a cohort of 69 patients affected by glioblastoma multiforme (GBM) who underwent chemo- and radiotherapy after surgical resection of the tumor, we found that PDE5 was strongly expressed in cancer cells in about 50% of the patients. Retrospective analysis indicated that high PDE5 expression in GBM cells significantly correlated with longer overall survival of patients...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099574/anatomy-and-micromorphometric-analysis-of-leaf-catasetum-x-apolloi-benelli-grill-with-addition-of-potassium-silicate-under-different-light-sources
#11
L Eburneo, N G Ribeiro-Júnior, I V Karsburg, A A B Rossi, I V Silva
The aim of this study was to compare vitroplants Catasetum x apolloi grown under natural light and artificial light and different concentrations of potassium silicate, providing data on the anatomical differentiation that aids the acclimatization process of this species. Plants from in vitro seeding were used; 5 protocorms of approximately 0.5 cm were inoculated into vials with a capacity of 500 mL containing 100 mL of alternative culture medium plus potassium silicate (0.0, 0.5; 1.0 mL L-1), pH adjusted to 5...
January 12, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28099523/the-role-of-liquid-based-cytology-and-ancillary-techniques-in-the-peritoneal-washing-analysis-our-institutional-experience
#12
Esther Rossi, Tommaso Bizzarro, Maurizio Martini, Adhemar Longatto-Filho, Fernando Schmitt, Anna Fagotti, Giovanni Scambia, Gian Franco Zannoni
BACKGROUND: The cytological analysis of peritoneal effusions serves as a diagnostic and prognostic aid for either primary or metastatic diseases. Among the different cytological preparations, liquid based cytology (LBC) represents a feasible and reliable method ensuring also the application of ancillary techniques (i.e immunocytochemistry-ICC and molecular testing). METHODS: We recorded 10348 LBC peritoneal effusions between January 2000 and December 2014. They were classified as non-diagnostic (ND), negative for malignancy-NM, atypical-suspicious for malignancy-SM and positive for malignancy-PM...
2017: PloS One
https://www.readbyqxmd.com/read/28099431/exacerbated-leishmaniasis-caused-by-a-viral-endosymbiont-can-be-prevented-by-immunization-with-its-viral-capsid
#13
Patrik Castiglioni, Mary-Anne Hartley, Matteo Rossi, Florence Prevel, Chantal Desponds, Daniel T Utzschneider, Remzi-Onur Eren, Haroun Zangger, Livia Brunner, Nicolas Collin, Dietmar Zehn, F Matthew Kuhlmann, Stephen M Beverley, Nicolas Fasel, Catherine Ronet
Recent studies have shown that a cytoplasmic virus called Leishmaniavirus (LRV) is present in some Leishmania species and acts as a potent innate immunogen, aggravating lesional inflammation and development in mice. In humans, the presence of LRV in Leishmania guyanensis and in L. braziliensis was significantly correlated with poor treatment response and symptomatic relapse. So far, no clinical effort has used LRV for prophylactic purposes. In this context, we designed an original vaccine strategy that targeted LRV nested in Leishmania parasites to prevent virus-related complications...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28098757/role-of-mir-34a-5p-in-hematopoietic-progenitor-cells-proliferation-and-fate-decision-novel-insights-into-the-pathogenesis-of-primary-myelofibrosis
#14
Elisa Bianchi, Samantha Ruberti, Sebastiano Rontauroli, Paola Guglielmelli, Simona Salati, Chiara Rossi, Roberta Zini, Enrico Tagliafico, Alessandro Maria Vannucchi, Rossella Manfredini
Primary Myelofibrosis (PMF) is a chronic Philadelphia-negative myeloproliferative neoplasm characterized by a skewed megakaryopoiesis and an overproduction of proinflammatory and profibrotic mediators that lead to the development of bone marrow (BM) fibrosis. Since we recently uncovered the upregulation of miR-34a-5p in PMF CD34+ hematopoietic progenitor cells (HPCs), in order to elucidate its role in PMF pathogenesis here we unravelled the effects of miR-34a-5p overexpression in HPCs. We showed that enforced expression of miR-34a-5p partially constrains proliferation and favours the megakaryocyte and monocyte/macrophage commitment of HPCs...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098076/melting-of-large-pt-mgo-100-icosahedra
#15
Kevin Rossi, Tom Ellaby, Lauro Oliver Paz Borbon, Ivailo Atanasov, Luca Pavan, Francesca Baletto
On the basis of ab-initio calculations, we present a new parametrisation of the Vervisch-Mottet-Goniakowski (VMG) potential [Vervisch et al. Phys. Rev B24, 245411 (2002)] for modelling the oxide-metal interaction. Applying this model to mimic the finite temperature behaviour of large platinum icosahedra deposited on the pristine MgO(100), we find the nanoparticle undergoes two solid-solid transitions. At 650 K the ���squarisation��� of the interface layer, while a full reshaping towards a fcc architecture takes place above 950 K...
January 18, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28096332/human-nf-%C3%AE%C2%BAb-repressing-factor-acts-as-a-stress-regulated-switch-for-ribosomal-rna-processing-and-nucleolar-homeostasis-surveillance
#16
Marta Coccia, Antonio Rossi, Anna Riccio, Edoardo Trotta, Maria Gabriella Santoro
The nucleolus, a dynamic nuclear compartment long regarded as the cell ribosome factory, is emerging as an important player in the regulation of cell survival and recovery from stress. In larger eukaryotes, the stress-induced transcriptional response is mediated by a family of heat-shock transcription factors. Among these, HSF1, considered the master regulator of stress-induced transcriptional responses, controls the expression of cytoprotective heat shock proteins (HSPs), molecular chaperones/cochaperones constituting a major component of the cell protein quality control machinery essential to circumvent stress-induced degradation and aggregation of misfolded proteins...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096087/diffuse-large-b-cell-lymphoma-genotyping-on-the-liquid-biopsy
#17
Davide Rossi, Fary Diop, Elisa Spaccarotella, Sara Monti, Manuela Zanni, Silvia Rasi, Clara Deambrogi, Valeria Spina, Alessio Bruscaggin, Chiara Favini, Roberto Serra, Antonio Ramponi, Renzo Boldorini, Robin Foa', Gianluca Gaidano
Accessible and real-time genotyping for diagnostic, prognostic or treatment purposes is increasingly impelling in diffuse large B-cell lymphoma (DLBCL). Cell-free DNA (cfDNA) is shed into the blood by tumor cells undergoing apoptosis and can be used as source of tumor DNA for the identification of DLBCL mutations, clonal evolution, and genetic mechanisms of resistance. Here we aimed at tracking the basal DLBCL genetic profile and its modification upon treatment using plasma cfDNA. Ultra-deep targeted next generation sequencing of pre-treatment plasma cfDNA from DLBCL patients correctly discovered DLBCL-associated mutations that were represented in >20% of the alleles of the tumor biopsy with a >90% sensitivity and a ~100% specificity...
January 17, 2017: Blood
https://www.readbyqxmd.com/read/28095333/effect-of-resveratrol-on-platelet-aggregation-by-fibrinogen-protection
#18
Claudia Bonechi, Stefania Lamponi, Alessandro Donati, Gabriella Tamasi, Marco Consumi, Gemma Leone, Claudio Rossi, Agnese Magnani
The effect of resveratrol (RSV) in inhibiting platelet adhesion and aggregation, as well as fibrinogen (FBG) conformational changes promoted by epinephrine (EP), were studied, by using complementary experimental techniques. NMR and IR spectroscopies were used to investigate possible protective effects by RSV towards FBG, in presence of EP. The protective effect of RSV towards FBG was highlighted by spin nuclear relaxation experiments that were interpreted for determining the thermodynamic equilibrium constants of FBG-EP interaction, and by infrared measurements, that showed EP-induced conformational changes of FBG...
January 2, 2017: Biophysical Chemistry
https://www.readbyqxmd.com/read/28095317/formulation-of-liposomes-functionalized-with-lotus-lectin-and-effective-in-targeting-highly-proliferative-cells
#19
Cinzia Della Giovampaola, Antonietta Capone, Leonardo Ermini, Pietro Lupetti, Elisa Vannuccini, Federica Finetti, Sandra Donnini, Marina Ziche, Agnese Magnani, Gemma Leone, Claudio Rossi, Floriana Rosati, Claudia Bonechi
BACKGROUND: Liposomes, used to improve the therapeutic index of new and established drugs, have advanced with the insertion of active targeting. The lectin from Lotus tetragonolobus (LTL), which binds glycans containing alpha-1,2-linked fucose, reveals surface regionalized glycoepitopes in highly proliferative cells not detectable in normally growing cells. In contrast, other lectins localize the corresponding glycoepitopes all over the cell surface. LTL also proved able to penetrate the cells by an unconventional uptake mechanism...
January 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28092566/wake-up-exoskeleton-to-assist-children-with-cerebral-palsy-design-and-preliminary-evaluation-in-level-walking
#20
Fabrizio Patane, Stefano Rossi, Fausto Del Sette, Juri Taborri, Paolo Cappa
This paper presents the modular design and control of a novel compliant lower limb multi-joint exoskeleton for the rehabilitation of ankle knee mobility and locomotion of pediatric patients with neurological diseases, such as Cerebral Palsy (CP). The device consists of an untethered powered knee-ankle-foot orthosis (KAFO), addressed as WAKE-up (Wearable Ankle Knee Exoskeleton), characterized by a position control and capable of operating synchronously and synergistically with the human musculoskeletal system...
January 11, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
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