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Francesca Raimondo, Clizia Chinello, Martina Stella, Lucia Santorelli, Fulvio Magni, Marina Pitto
Hematuria is a common sign of many renal and urologic pathologic conditions and it may affect the proteomic analysis of urinary extracellular vesicles (UEv), nanovesicles released from all cells in contact with the urinary space. This condition hinders UEv based proteomic studies aiming to discover biomarkers. Therefore, we studied the effects of hematuria on the proteome of UEv, and introduced a possible solution to reduce its misleading impact. We mimicked hematuria by adding increasing amount of blood to non-affected urine, and investigated its effects on UEv isolation, purity and proteomic composition...
June 15, 2018: Journal of Proteome Research
Ada Bertoli, Maria Chiara Sorbo, Marianna Aragri, Ilaria Lenci, Elisabetta Teti, Ennio Polilli, Velia Chiara Di Maio, Laura Gianserra, Elisa Biliotti, Chiara Masetti, Carlo F Magni, Sergio Babudieri, Laura A Nicolini, Martina Milana, Pierluigi Cacciatore, Loredana Sarmati, Adriano Pellicelli, Stefania Paolucci, Antonio Craxì, Filomena Morisco, Valeria Pace Palitti, Massimo Siciliano, Nicola Coppola, Nerio Iapadre, Massimo Puoti, Giuliano Rizzardini, Gloria Taliani, Caterina Pasquazzi, Massimo Andreoni, Giustino Parruti, Mario Angelico, Carlo Federico Perno, Valeria Cento, Francesca Ceccherini-Silberstein
Natural resistance-associated substitutions (RASs) are reported with highly variable prevalence across different HCV genotypes (GTs). Frequency of natural RASs in a large Italian real-life cohort of patients infected with the 4 main HCV-GTs was investigated. NS3, NS5A and NS5B sequences were analysed in 1445 HCV-infected DAA-naïve patients. Sanger-sequencing was performed by home-made protocols on 464 GT1a, 585 GT1b, 92 GT2c, 199 GT3a, 16 GT4a and 99 GT4d samples. Overall, 20.7% (301/1455) of patients showed natural RASs, and the prevalence of multiclass-resistance was 7...
June 12, 2018: Scientific Reports
Keqin Deng, Xinyan Liu, Chunxiang Li, Haowen Huang
The loading capacity of thionin (Thi) on shortened multi-walled carbon nanotubes (S-MWCNTs) and acidified multi-walled carbon nanotubes (A-MWCNTs) was compared. Two DNA probe fragments were designed for hybridization with microRNA-21 (miR-21), the microRNAs (miRNAs) model analyte. DNA probe 1 (P1) was assembled on Au nanoparticles (AuNPs) modified electrode. MiR-21 was captured by the pre-immobilized P1. A signal nanoprobe was synthesized by loading large amount of Thi on S-MWCNTs with covalently bonded probe 2 (P2)...
May 31, 2018: Biosensors & Bioelectronics
Federico Paolucci, Giorgio De Simoni, Elia Strambini, Paolo Solinas, Francesco Giazotto
Superconducting field-eect transitor (SuFET) and Josephson field-effect transistor (JoFET) technologies take advantage of electric field induced control of charge carrier concentration in order to modulate the channel superconducting properties. Despite field-effect is believed to be unaffective for superconducting metals, recent experiments showed electric field dependent modulation of the critical current (IC) in a fully metallic transistor. Yet, the grounding mechanism of this phenomenon is not completely under- stood...
June 12, 2018: Nano Letters
Leda Severi, Lorena Losi, Sergio Fonda, Laura Taddia, Gaia Gozzi, Gaetano Marverti, Fulvio Magni, Clizia Chinello, Martina Stella, Jalid Sheouli, Elena I Braicu, Filippo Genovese, Angela Lauriola, Chiara Marraccini, Alessandra Gualandi, Domenico D'Arca, Stefania Ferrari, Maria P Costi
Proteomics and bioinformatics are a useful combined technology for the characterization of protein expression level and modulation associated with the response to a drug and with its mechanism of action. The folate pathway represents an important target in the anticancer drugs therapy. In the present study, a discovery proteomics approach was applied to tissue samples collected from ovarian cancer patients who relapsed after the first-line carboplatin-based chemotherapy and were treated with pemetrexed (PMX), a known folate pathway targeting drug...
2018: Frontiers in Pharmacology
D Riccio, G Magni, S Ceruti, L Arendt-Nielsen, P Gazerani
Aims Limited information is currently available for the expression and role of Aquaporin 4 (AQP4) (AQ4) in the peripheral nervous system (PNS). It has been demonstrated that AQP4 is expressed in sensory ganglia. Immunohistochemistry has revealed that satellite glial cells (SGCs) surrounding the cell bodies of the primary afferent sensory neurons in these sensory ganglia exclusively express AQP4 at a considerably lower level than what is seen in astrocytes. The pathophysiological relevance of AQP4 in peripheral nociception; however, remains unclear...
December 29, 2017: Scandinavian Journal of Pain
Massimiliano Ruscica, Sara Simonelli, Margherita Botta, Alice Ossoli, Maria Giovanna Lupo, Paolo Magni, Alberto Corsini, Marcello Arca, Livia Pisciotta, Fabrizio Veglia, Guido Franceschini, Nicola Ferri, Laura Calabresi
Proprotein convertase subtilisin/kexin 9 (PCSK9), a protein regulating the number of cell-surface LDL receptors (LDLR), circulates partially associated to plasma lipoproteins. How this interaction alters PCSK9 plasma levels is still unclear. In the present study, we took advantage of the availability of a large cohort of carriers of genetic HDL disorders to evaluate how HDL defects affect plasma PCSK9 levels and its distribution among lipoproteins. Plasma PCSK9 concentrations were determined by ELISA in carriers of mutations in LCAT, ABCA1, or APOAI genes, and lipoprotein distribution was analyzed by FPLC...
May 28, 2018: Biochimica et Biophysica Acta
Martina Magni, Giacomo Buscemi, Laura Zannini
Cell cycle and apoptosis regulator 2 (CCAR2 or DBC1) is a human protein recently emerged as a novel and important player of the DNA damage response (DDR). Indeed, upon genotoxic stress, CCAR2, phosphorylated by the apical DDR kinases ATM and ATR, increases its binding to the NAD+-dependent histone deacetylase SIRT1 and inhibits SIRT1 activity. This event promotes the acetylation and activation of p53, a SIRT1 target, and the subsequent induction of p53 dependent apoptosis. In addition, CCAR2 influences DNA repair pathway choice and promotes the chromatin relaxation necessary for the repair of heterochromatic DNA lesions...
April 2018: Mutation Research
A Binelli, S Magni, C La Porta, L Bini, C Della Torre, M Ascagni, D Maggioni, A Ghilardi, A Armini, C Landi, N Santo, L Madaschi, V Coccè, F Mutti, M C Lionetti, E Ciusani, L Del Giacco
One of the crucial and unsolved problems of the airborne carbon nanoparticles is the role played by the adsorbed environmental pollutants on their toxicological effect. Indeed, in the urban areas, the carbon nanoparticles usually adsorb some atmospheric contaminants, whose one of the leading representatives is the benzo(α)pyrene. Herein, we used the proteomics to investigate the alteration of toxicological pathways due to the carbon nanopowder-benzo(α)pyrene complex in comparison with the two contaminants administered alone on human skin-derived fibroblasts (hSDFs) exposed for 8 days in semi-static conditions...
May 23, 2018: Ecotoxicology and Environmental Safety
Alessandro Consolaro, Francesca Bovis, Angela Pistorio, Rolando Cimaz, Fabrizio De Benedetti, Angela Miniaci, Fabrizia Corona, Valeria Gerloni, Silvana Martino, Serena Pastore, Patrizia Barone, Sara Pieropan, Elisabetta Cortis, Rosa Anna Podda, Romina Gallizzi, Adele Civino, Francesco La Torre, Donato Rigante, Rita Consolini, Maria Cristina Maggio, Silvia Magni-Manzoni, Francesca Perfetti, Giovanni Filocamo, Claudia Toppino, Francesco Licciardi, Marco Garrone, Silvia Scala, Elisa Patrone, Monica Tonelli, Daniela Tani, Angelo Ravelli, Alberto Martini, Nicolino Ruperto
The family name of author Francesco La Torre was incorrect in the published article. The correct family name should read as La Torre F.
May 21, 2018: Rheumatology International
Alessandro Maloberti, Giulio Cassano, Nicolò Capsoni, Silvia Gheda, Gloria Magni, Giulia Maria Azin, Massimo Zacchino, Adriano Rossi, Carlo Campanella, Andrea Luigi Roberto Beretta, Andrea Bellone, Cristina Giannattasio
Hypertensive urgencies-emergencies are important and common events. They are defined as a severe elevation in BP, higher than 180/120 mmHg, associated or not with the evidence of new or worsening organ damage for emergencies and urgencies respectively. Anamnestic information, physical examination and instrumental evaluation determine the following management that could need oral (for urgencies) or intravenous (for emergencies) anti-hypertensives drugs. The choice of the specific drugs depend on the underlying causes of the crisis, patient's demographics, cardiovascular risk and comorbidities...
May 18, 2018: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
Susan Cheng Shelmerdine, Pier Luigi Di Paolo, Laura Tanturri de Horatio, Clara Malattia, Silvia Magni-Manzoni, Karen Rosendahl
Hip involvement is common and estimated to occur in approximately 35-63% of children with juvenile idiopathic arthritis (JIA). It is more prevalent in the aggressive systemic subtypes, with irreversible changes occurring as early as within 5 years of diagnosis. Whilst clinical parameters and joint examination can be useful for assessing disease severity, subclinical disease is known to exist and delayed treatment may herald a lifetime of disability and pain. Early recognition of JIA changes is therefore crucial in determining treatment options...
June 2018: Pediatric Radiology
Clara Malattia, Nikolay Tzaribachev, J Merlijn van den Berg, Silvia Magni-Manzoni
Alongside recent advances in treatment strategies for juvenile idiopathic arthritis (JIA), paediatric rheumatologists have taken increasing interest in the use of imaging. Magnetic resonance imaging (MRI) and musculoskeletal ultrasound, by providing more detailed information on disease activity than clinical examination and conventional radiography (CR), have become helpful diagnostic and managerial tools. The growing skeleton, however, with changing appearances over time, is still challenging in the establishment of valid scoring systems for pathological changes...
June 2018: Pediatric Radiology
Paola A Magni, Marco Pazzi, Jessica Droghi, Marco Vincenti, Ian R Dadour
Entomotoxicology is a branch of forensic entomology that studies the detection of drugs or other toxic substances from insects developing on the decomposing tissues of a human corpse or animal carcass. Entomotoxicology also investigates the effects of these substances on insect development, survival and morphology to provide an estimation of the minimum time since death. Ketamine is a medication mainly used for starting and maintaining anesthesia. In recent years ketamine has also been used as a recreational drug, and occasionally as a sedating drug to facilitate sexual assault...
May 3, 2018: Journal of Forensic and Legal Medicine
V Rigourd, J P Barnier, A Ferroni, M Nicloux, T Hachem, J F Magny, A Lapillonne, P Frange, X Nassif, E Bille
Three cases of Bacillus cereus infection or colonization occurred in the same region in France, and milk from the milk bank was suspected as a possible common source of contamination. All Batches delivered to the three cases complied with the requirements of the bacteriological reference method recommended by good practices guidelines. Still, a retrospective analysis with a more sensitive method showed one batch to contain B. cereus, however straincomparison revealed no epidemiological link betweenisolates from patients and those from the milk...
May 3, 2018: European Journal of Clinical Microbiology & Infectious Diseases
Stefano Magni, Antonella Succurro, Alexander Skupin, Oliver Ebenhöh
Global warming exposes plants to severe heat stress, with consequent crop yield reduction. Organisms exposed to high temperature stresses typically protect themselves with a heat shock response (HSR), where accumulation of unfolded proteins initiates the synthesis of heat shock proteins through the heat shock transcription factor HSF1. While the molecular mechanisms are qualitatively well characterized, our quantitative understanding of the underlying dynamics is still very limited. Here, we study the dynamics of HSR in the photosynthetic model organism Chlamydomonas reinhardtii with a data-driven mathematical model of HSR...
May 2018: Journal of the Royal Society, Interface
Angela Aquilani, Denise Pires Marafon, Emiliano Marasco, Rebecca Nicolai, Virginia Messia, Francesca Perfetti, Silvia Magni-Manzoni, Fabrizio De Benedetti
OBJECTIVE: To evaluate the rate of flare after etanercept (ETN) withdrawal in patients with juvenile idiopathic arthritis (JIA) who attained clinical remission while taking medication, and to identify predictors of flare. METHODS: Patients were included with oligo- (oJIA) and rheumatoid factor-negative polyarticular JIA (pJIA) who received a first course of ETN for at least 18 months, maintained clinically inactive disease (CID) for at least 6 months during treatment, and were followed for 12 months after ETN withdrawal...
May 1, 2018: Journal of Rheumatology
Andrea Giorgi, Maurizio Vicini, Luca Pollastri, Erica Lombardi, Emilio Magni, Andrea Andreazzoli, Marco Orsini, Marco Bonifazi, Henry Lukaski, Hannes Gatterer
Bioelectrical impedance vector-analysis (BIVA) describes cell-mass, cell function and hydration status of an individual or a group. The goal of the present investigation was to provide bioelectrical impedance data for 525 male road cyclists (155 professionals, 79 elite, 59 elite-youth, and 232 amateurs) at the time of their optimal performance level. Data were plotted on the resistance-reactance (R-Xc) graph to characterize cyclists group vectors using BIVA. Compared to the general male population, the mean vector position of the road cyclists indicates a higher body cell mass (BCM) and phase angle (p<0...
April 30, 2018: Journal of Sports Sciences
Martina Stella, Clizia Chinello, Anna Cazzaniga, Andrew Smith, Manuel Galli, Isabella Piga, Angelica Grasso, Marco Grasso, Marina Del Puppo, Marta Varallo, Giorgio Bovo, Fulvio Magni
Renal Cell Carcinoma (RCC) is the most frequent form of kidney cancer and approximately 80% of cases are defined as clear cell RCC (ccRCC). Among the histopathological factors, tumour grade represents one of the most important parameters to evaluate ccRCC progression. Nonetheless, the molecular processes associated with the grading classification haven't been deeply investigated thus far. Therefore, the aim of this study was to uncover protein alterations associated with different ccRCC grade lesions. Formalin-fixed paraffin-embedded samples from ccRCC patients were analysed by histology-guided MALDI-MSI and shotgun proteomics in order to study the biological processes implicated in ccRCC...
April 23, 2018: Journal of Proteomics
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