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https://www.readbyqxmd.com/read/28402213/engineering-and-expressing-circular-rnas-via-trna-splicing
#1
John J Noto, Casey A Schmidt, A Gregory Matera
Circular (circ)RNAs have recently become a subject of great biological interest. It is now clear that they represent a diverse and abundant class of RNAs with regulated expression and evolutionarily conserved functions. There are several mechanisms by which RNA circularization can occur in vivo. Here, we focus on the biogenesis of tRNA intronic circular RNAs (tricRNAs) in archaea and animals, and we detail their use as research tools for orthogonal, directed circRNA expression in vivo.
April 12, 2017: RNA Biology
https://www.readbyqxmd.com/read/28349353/management-of-chronic-obstructive-pulmonary-disease-in-patients-with-cardiovascular-diseases
#2
Mario Cazzola, Luigino Calzetta, Barbara Rinaldi, Clive Page, Giuseppe Rosano, Paola Rogliani, Maria Gabriella Matera
Chronic obstructive pulmonary disease (COPD) and cardiovascular diseases often coexist. The mechanistic links between these two diseases are complex, multifactorial and not entirely understood, but they can influence the therapeutic approach. Therapy can be primarily directed towards treating the respiratory symptoms and reducing lung inflammation. Smoking cessation, bronchodilators and inhaled corticosteroids are central to this therapeutic approach. The underlying pathophysiological mechanisms that are responsible for the increased cardiovascular risk in COPD remain unclear, but might include arterial stiffness, inflammation and endothelial dysfunction as a consequence of systemic exposure to chemicals in cigarette smoke or airborne pollution...
May 2017: Drugs
https://www.readbyqxmd.com/read/28346707/periurethral-muscle-derived-mononuclear-cell-injection-improves-urethral-sphincter-restoration-in-rats
#3
Marcelo Pitelli Turco, Alex Balduino de Souza, Isida de Campos Sousa, Paula Fratini, Mariana Matera Veras, Marcio Nogueira Rodrigues, José de Bessa, Marina Pandolphi Brolio, Katia Ramos Moreira Leite, Homero Bruschini, Miguel Srougi, Maria Angélica Miglino, Cristiano Mendes Gomes
AIMS: Investigate the effect of a novel cell-based therapy with skeletal muscle-derived mononuclear cells (SMDMCs) in a rat model of stress urinary incontinence. METHODS: Male Wistar-Kyoto rats' hind limb muscles were enzymatically dissociated, and SMDMCs were isolated without needing expansion. The cell population was characterized. Twenty female rats underwent urethrolysis. One week later, 10 rats received periurethral injection of 10(6) cells (SMDMC group), and 10 rats received saline injections (Saline group)...
March 27, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28346137/histone-gene-replacement-reveals-a-post-transcriptional-role-for-h3k36-in-maintaining-metazoan-transcriptome-fidelity
#4
Michael P Meers, Telmo Henriques, Christopher A Lavender, Daniel J McKay, Brian D Strahl, Robert J Duronio, Karen Adelman, A Gregory Matera
Histone H3 lysine 36 methylation (H3K36me) is thought to participate in a host of co-transcriptional regulatory events. To study the function of this residue independent from the enzymes that modify it, we used a 'histone replacement' system in Drosophila to generate a non-modifiable H3K36 lysine-to-arginine (H3K36R) mutant. We observed global dysregulation of mRNA levels in H3K36R animals that correlates with the incidence of H3K36me3. Similar to previous studies, we found that mutation of H3K36 also resulted in H4 hyperacetylation...
March 27, 2017: ELife
https://www.readbyqxmd.com/read/28339074/absence-of-t-14-18-chromosome-translocation-in-agricultural-workers-after-short-term-exposure-to-pesticides
#5
Venerando Rapisarda, Caterina Ledda, Serena Matera, Lucrezia Fago, Giorgio Arrabito, Luca Falzone, Andrea Marconi, Massimo Libra, Carla Loreto
Exposure to pesticides represents a potential health risk for the general population and for agricultural workers in particular. Some researchers observed that occupational exposure to pesticides is associated with risk of non‑Hodgkin's lymphoma (NHL). The chromosomal translocation t(14;18)(q32;q21) is one of the most common chromosomal abnormalities in NHL. The aim of this study was to detect the effects of pesticides on t(14;18) chromosome translocation in agricultural workers after short-term exposure...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28339042/immunomodulatory-effects-in-workers-exposed-to-naturally-occurring-asbestos-fibers
#6
Caterina Ledda, Chiara Costa, Serena Matera, Beatrice Puglisi, Valentina Costanzo, Massimo Bracci, Concettina Fenga, Venerando Rapisarda, Carla Loreto
Natural asbestiform fibers are defined 'naturally occurring asbestos' (NOA) and refer to the mineral as a natural component of soils or rocks. The release of NOA fibers into the air from rocks or soils by routine human activities or natural weathering processes represents a risk for human beings. Fluoro-edenite (FE) is a NOA fiber detected in the benmoreitic lava in the area of Biancavilla, South-west slope of Mt. Etna. The aim of the present study was to investigate FE immunotoxicity pathways in a group of 38 occupationally exposed construction workers, in order to find any biological markers of its effect...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28339019/occupational-exposure-to-mount-etna-s-basaltic-dust-assessment-of-mutagenic-and-cytotoxic-effects
#7
Caterina Ledda, Salvatore Cocuzza, Monica Salerno, Paola Senia, Serena Matera, Venerando Rapisarda, Carla Loreto
Basalt and volcanic ash are natural constituents of the ground surrounding volcanic areas such as Mount Etna. The dust may be daily inhaled by the general population as well as by several types of workers, such as construction workers. In this experiment, we analyzed the potential mutagenic and cytotoxic effects of the materials used in construction industry, excavated from Mt. Etna. Ground basalt (A), volcanic ash (B), mixed basalt and cement (C) and cement (D) were studied with Ames test, for mutagenic assessment and with MMT assay for cytotoxic evaluation...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338545/risperidone-and-cardiometabolic-risk-in-children-and-adolescents-clinical-and-instrumental-issues
#8
Emilia Matera, Lucia Margari, Vincenzo Ostilio Palmieri, Giuseppina Zagaria, Roberto Palumbi, Francesco Margari
PURPOSE/BACKGROUND: Although second-generation antipsychotics are used to treat and manage symptoms for several psychiatric disorders, data about their adverse effects in developmental age are limited. The aim of this prospective observational study was to verify the cardiovascular and metabolic risk in a sample of antipsychotic-naive children/adolescent patients starting risperidone therapy. METHODS: Twenty-two patients, younger than 18 years, were recruited. The assessment included anthropometric data, cardiovascular parameters, blood tests, and ultrasonographic abdominal study...
June 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28337871/cytokine-modulation-in-patients-with-idiopathic-pulmonary-fibrosis-undergoing-treatment-with-steroids-immunosuppressants-and-ifn-%C3%AE-1b
#9
S Marinari, V De Iuliis, V Dadorante, S Colella, A Marino, A Nunziata, V Flati, M Caruso, A Pennelli, F De Benedetto, S Matera, S Capodifoglio, S Martinotti, S Caputi, E Toniato
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease of unknown etiology and pathogenic mechanisms. From an etiopathogenic point of view, alveolar macrophages play a key role in accumulation of fibroblasts and deposition of collagen and extracellular matrix by releasing specific cytokines and inflammatory mediators. IPF seems to be also associated with circulating fibrocytes, which might be involved with an abnormal pulmonary vascular repair and remodeling. Based on its hypothesized pathologic mechanisms, anti-inflammatory, anti-fibrotic and immunosuppressive therapies are often used...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28317613/retrospective-study-2009-2014-perineal-hernias-and-related-comorbidities-in-bitches
#10
Ayne Murata Hayashi, Sandra Aparecida Rosner, Thais Cristine Alves de Assumpção, Angelo João Stopiglia, Julia Maria Matera
Retrospective study based on data extracted from medical records of dogs diagnosed with perineal hernia between 2009 and 2014; medical records of bitches were selected for further analysis to determine the prevalence of perineal hernias in bitches and to investigate potential comorbidities. Perineal hernia was diagnosed in 182 dogs (174 males and 8 females; 96% and 4%, respectively). Surgical correction was performed in 6 bitches. Surgical procedures corresponded to internal obturator muscle transposition with or without polypropylene mesh reinforcement (n = 5) and semitendinosus muscle transposition flap (n = 1)...
December 2016: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28295526/pharmacological-treatments-in-asthma-affected-horses-a-pair-wise-and-network-meta-analysis
#11
L Calzetta, P Roncada, D di Cave, L Bonizzi, A Urbani, E Pistocchini, P Rogliani, M G Matera
BACKGROUND: Equine asthma is a disease characterised by reversible airflow obstruction, bronchial hyperresponsiveness and airway inflammation following exposure of susceptible horses to specific airborne agents. Although clinical remission can be achieved in a low-airborne dust environment, repeated exacerbations may lead to irreversible airway remodelling. The available data on the pharmacotherapy of equine asthma results from several small studies, and no head-to-head clinical trials have been conducted among the available medications...
March 10, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28284323/optimizing-drug-delivery-in-copd-the-role-of-inhaler-devices
#12
REVIEW
Paola Rogliani, Luigino Calzetta, Angelo Coppola, Francesco Cavalli, Josuel Ora, Ermanno Puxeddu, Maria Gabriella Matera, Mario Cazzola
Inhaled medication is the cornerstone of the pharmacological treatment for patients with asthma and chronic obstructive pulmonary disease (COPD). Several inhaler devices exist, and each device has specific characteristics to achieve the optimal inhalation of drugs. The correct use of inhaler devices is not granted and patients may incur in mistakes when using pressurized metered-dose inhalers (pMDIs) or dry-powder inhaler (DPIs). The incorrect use of inhaler devices can lead to a poorly controlled disease status...
March 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28277123/ambient-levels-of-concentrated-pm2-5-affects-cell-kinetics-in-adrenal-glands-an-experimental-study-in-mice
#13
Luiz Fernando Portugal Fuchs, Mariana Matera Veras, Paulo Hilário Nascimento Saldiva, Gisela Rodrigues da Silva Sasso, Kátia Cândido Carvalho, Manuel de Jesus Simões, José Maria Soares, Edmund Chada Baracat
We evaluated the effects of air pollution on the adrenal cortex using 30 female mice divided into two groups of fifteen animals each. One group was conditioned daily in a chamber with exposure to particulate matter (PM) 2.5 μm (GExp). Animals were exposed on daily basis in an ambient particles concentrator during the period of time enough to reach an accumulated dose of 600 μg/m(3), which corresponds to a 24-h exposure of 25 μg/m(3) that approximates to the annual mean of PM2.5 in São Paulo. The other group was allocated to another chamber with filtered air (GCrt)...
February 28, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28274275/whole-exome-sequencing-coupled-with-unbiased-functional-analysis-reveals-new-hirschsprung-disease-genes
#14
Hongsheng Gui, Duco Schriemer, William W Cheng, Rajendra K Chauhan, Guillermo Antiňolo, Courtney Berrios, Marta Bleda, Alice S Brooks, Rutger W W Brouwer, Alan J Burns, Stacey S Cherny, Joaquin Dopazo, Bart J L Eggen, Paola Griseri, Binta Jalloh, Thuy-Linh Le, Vincent C H Lui, Berta Luzón-Toro, Ivana Matera, Elly S W Ngan, Anna Pelet, Macarena Ruiz-Ferrer, Pak C Sham, Iain T Shepherd, Man-Ting So, Yunia Sribudiani, Clara S M Tang, Mirjam C G N van den Hout, Herma C van der Linde, Tjakko J van Ham, Wilfred F J van IJcken, Joke B G M Verheij, Jeanne Amiel, Salud Borrego, Isabella Ceccherini, Aravinda Chakravarti, Stanislas Lyonnet, Paul K H Tam, Maria-Mercè Garcia-Barceló, Robert M W Hofstra
BACKGROUND: Hirschsprung disease (HSCR), which is congenital obstruction of the bowel, results from a failure of enteric nervous system (ENS) progenitors to migrate, proliferate, differentiate, or survive within the distal intestine. Previous studies that have searched for genes underlying HSCR have focused on ENS-related pathways and genes not fitting the current knowledge have thus often been ignored. We identify and validate novel HSCR genes using whole exome sequencing (WES), burden tests, in silico prediction, unbiased in vivo analyses of the mutated genes in zebrafish, and expression analyses in zebrafish, mouse, and human...
March 8, 2017: Genome Biology
https://www.readbyqxmd.com/read/28260900/analysis-concerning-nutritional-behaviors-in-the-context-of-the-risk-of-orthorexia
#15
Dominik Olejniczak, Dorota Bugajec, Mariusz Panczyk, Anna Brytek-Matera, Urszula Religioni, Aleksandra Czerw, Aleksandra Grąbczewska, Grzegorz Juszczyk, Karolina Jabłkowska-Górecka, Anna Staniszewska
Orthorexia is recognized as an eating disorder, an obsessive-compulsive spectrum disorder, or a somatoform disorder. The aim of our research was to analyze nutritional behaviors for the assessment of the risk of orthorexia. The authors developed a questionnaire in which 981 respondents participated and used it as a research method. Both men and women ate mostly 4-5 meals per day (46.30% women versus 34.74% men); however, more men than women ate 1-2 meals daily (18.95% men versus 7.9% women). Both place of birth and field of study did not differ in terms of the number of meals...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28247183/the-challenges-of-precision-medicine-in-copd
#16
Mario Cazzola, Luigino Calzetta, Paola Rogliani, Maria Gabriella Matera
Pheno-/endotyping chronic obstructive pulmonary disease (COPD) is really important because it provides patients with precise and personalized medicine. The central concept of precision medicine is to take individual variability into account when making management decisions. Precision medicine should ensure that patients get the right treatment at the right dose at the right time, with minimum harmful consequences and maximum efficacy. Ideally, we should search for genetic and molecular biomarker-based profiles...
February 28, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28222705/orthorexia-and-anorexia-nervosa-two-distinct-phenomena-a-cross-cultural-comparison-of-orthorexic-behaviours-in-clinical-and-non-clinical-samples
#17
C Gramaglia, A Brytek-Matera, R Rogoza, P Zeppegno
BACKGROUND: Orthorexia nervosa (ON) is defined as pathological healthful eating. The aim of this study was to investigate whether there is any difference in orthorexic behaviours between clinical and non-clinical groups, and in different cultural contexts. . METHODS: Recruitment involved both female patients with anorexia nervosa (AN) and healthy controls (HC) from Italy and Poland (N = 23 and N = 35 AN patients; and N = 39 and N = 39 HCs, in Italy and Poland, respectively)...
February 21, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28203364/tiotropium-formulations-and-safety-a-network-meta-analysis
#18
Mario Cazzola, Luigino Calzetta, Paola Rogliani, Maria Gabriella Matera
Tiotropium is now delivered via two different inhaler devices: the original Handihaler 18 μg once daily, which uses a powder formulation; and the newer Respimat Soft Mist Inhaler (SMI) 5 μg once daily. It has been questioned whether the two devices can be assumed to have the same safety profile, although the TIOSPIR trial showed that tiotropium when administered via Respimat SMI 5 μg is not less safe than Handihaler 18 μg. Therefore, we have carried out a safety evaluation of tiotropium Handihaler 18 µg versus tiotropium Respimat SMI 5 µg and 2...
January 2017: Therapeutic Advances in Drug Safety
https://www.readbyqxmd.com/read/28167741/a-new-molecular-mechanism-to-engineer-protean-agonism-at-a-g-protein-coupled-receptor
#19
Anna De Min, Carlo Matera, Andreas Bock, Janine Holze, Jessica Kloeckner, Mathias Muth, Christian Traenkle, Marco De Amici, Terry Kenakin, Ulrike Holzgrabe, Clelia Dallanoce, Evi Kostenis, Klaus Mohr, Ramona Schrage
Protean agonists are of great pharmacological interest as their behavior may change in magnitude and direction depending on the constitutive activity of a receptor. Yet, this intriguing phenomenon has been poorly described and understood, due to the lack of stable experimental systems and design strategies. In this study, we overcome both limitations: First, we demonstrate that modulation of the ionic strength in a defined experimental set-up allows for analysis of G protein-coupled receptor activation in the absence and presence of a specific amount of spontaneous receptor activity using the muscarinic M2 acetylcholine receptor as a model...
April 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28147552/a-practical-approach-to-the-sensitivity-analysis-for-kinetic-monte-carlo-simulation-of-heterogeneous-catalysis
#20
Max J Hoffmann, Felix Engelmann, Sebastian Matera
Lattice kinetic Monte Carlo simulations have become a vital tool for predictive quality atomistic understanding of complex surface chemical reaction kinetics over a wide range of reaction conditions. In order to expand their practical value in terms of giving guidelines for the atomic level design of catalytic systems, it is very desirable to readily evaluate a sensitivity analysis for a given model. The result of such a sensitivity analysis quantitatively expresses the dependency of the turnover frequency, being the main output variable, on the rate constants entering the model...
January 28, 2017: Journal of Chemical Physics
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