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Sebastian Benz, Amalia I Poblador-Bahamonde, Nicolas Low-Ders, Stefan Matile
Halogen- and chalcogen-based σ-hole interactions have recently received increased interest in non-covalent organocatalysis. However, the closely related pnictogen bonds have been neglected. In this study, we introduce conceptually simple, neutral, and monodentate pnictogen-bonding catalysts. Solution and in silico binding studies, together with high catalytic activity in chloride abstraction reactions, yield compelling evidence for operational pnictogen bonds. The depth of the σ holes is easily varied with different substituents...
March 20, 2018: Angewandte Chemie
Alessandro Della Corte, Michele Di Mauro, Amalia Forte
No abstract text is available yet for this article.
February 17, 2018: Journal of Thoracic and Cardiovascular Surgery
Norman Maldonado, Blanca Amalia Llorente, Roberto Magno Iglesias, Diego Escobar
BACKGROUND: By 2016, tobacco industry provided the only illicit trade estimates in Colombia and used these to discourage tax increases since the 1990s. To establish the viability of a threefold hike in the excise tax, policy makers needed unbiased estimates of the illicit cigarette. OBJECTIVE: To estimate the size of illicit cigarette trade in five Colombian cities (63% of the market), analyse characteristics of smokers of illicit cigarettes and compare market share results with one industry-funded survey...
March 14, 2018: Tobacco Control
Amália de Fátima Lucena, Cecília Zys Magro, Maria Conceição da Costa Proença, Ananda Ughini Bertoldo Pires, Vítor Monteiro Moraes, Graziella Badin Aliti
OBJECTIVE: To validate interventions and nursing activities proposed by the Nursing Interventions Classification for patients with acute renal failure or acute chronic renal disease in hemodialysis therapy with the Excess Fluid Volume and Risk for Imbalanced Fluid Volume nursing diagnoses. METHODS: Validation of content with 19 expert nurses from a university hospital. The data collection was made from September to November 2011 through instruments that contained the interventions and nursing activities in study...
March 12, 2018: Revista Gaúcha de Enfermagem
Amit Kumar, Francesca Pintus, Amalia Di Petrillo, Rosaria Medda, Paola Caria, Maria João Matos, Dolores Viña, Enrico Pieroni, Francesco Delogu, Benedetta Era, Giovanna L Delogu, Antonella Fais
Alzheimer's disease (AD) is a neurodegenerative disorder representing the leading cause of dementia and is affecting nearly 44 million people worldwide. AD is characterized by a progressive decline in acetylcholine levels in the cholinergic systems, which results in severe memory loss and cognitive impairments. Expression levels and activity of butyrylcholinesterase (BChE) enzyme has been noted to increase significantly in the late stages of AD, thus making it a viable drug target. A series of hydroxylated 2-phenylbenzofurans compounds were designed, synthesized and their inhibitory activities toward acetylcholinesterase (AChE) and BChE enzymes were evaluated...
March 13, 2018: Scientific Reports
Marcello Mancini, Paul Summers, Francesco Faita, Maurizia R Brunetto, Francesco Callea, Andrea De Nicola, Nicole Di Lascio, Fabio Farinati, Amalia Gastaldelli, Bruno Gridelli, Peppino Mirabelli, Emanuele Neri, Piero A Salvadori, Eleni Rebelos, Claudio Tiribelli, Luca Valenti, Marco Salvatore, Ferruccio Bonino
The rapidly growing field of functional, molecular and structural bio-imaging is providing an extraordinary new opportunity to overcome the limits of invasive liver biopsy and introduce a "digital biopsy" for in vivo study of liver pathophysiology. To foster the application of bio-imaging in clinical and translational research, there is a need to standardize the methods of both acquisition and the storage of the bio-images of the liver. It can be hoped that the combination of digital, liquid and histologic liver biopsies will provide an innovative synergistic tri-dimensional approach to identifying new aetiologies, diagnostic and prognostic biomarkers and therapeutic targets for the optimization of personalized therapy of liver diseases and liver cancer...
February 27, 2018: World Journal of Hepatology
Carmen Gómez-Lama Cabanás, Garikoitz Legarda, David Ruano-Rosa, Paloma Pizarro-Tobías, Antonio Valverde-Corredor, José L Niqui, Juan C Triviño, Amalia Roca, Jesús Mercado-Blanco
The use of biological control agents (BCA), alone or in combination with other management measures, has gained attention over the past decades, driven by the need to seek for sustainable and eco-friendly alternatives to confront plant pathogens. The rhizosphere of olive ( Olea europaea L.) plants is a source of bacteria with potential as biocontrol tools against Verticillium wilt of olive (VWO) caused by Verticillium dahliae Kleb. A collection of bacterial isolates from healthy nursery-produced olive (cultivar Picual, susceptible to VWO) plants was generated based on morphological, biochemical and metabolic characteristics, chemical sensitivities, and on their in vitro antagonistic activity against several olive pathogens...
2018: Frontiers in Microbiology
Lina A Matschke, Susanne Rinné, Terrance P Snutch, Wolfgang H Oertel, Amalia M Dolga, Niels Decher
The physiological, intrinsic activity of noradrenergic locus coeruleus (LC) neurons is important for the control of sleep/wakefulness, cognition and autonomous body functions. Dysregulations of the LC-noradrenergic network contribute to the pathogenesis of psychiatric disorders and are key findings in early stages of neurodegenerative diseases. Therefore, identifying ion channels mediating the intrinsic pacemaking mechanism of LC neurons, which is in turn directly coupled to Ca2+ homeostasis and cell survival signaling pathways, can help to foster our understanding of the vulnerability of these neurons in neurodegenerative diseases...
March 7, 2018: Molecular and Cellular Neurosciences
Janine Kröger, Karina Meidtner, Norbert Stefan, Marcela Guevara, Nicola D Kerrison, Eva Ardanaz, Dagfinn Aune, Heiner Boeing, Miren Dorronsoro, Courtney Dow, Guy Fagherazzi, Paul W Franks, Heinz Freisling, Marc J Gunter, José María Huerta, Rudolf Kaaks, Timothy J Key, Kay Tee Khaw, Vittorio Krogh, Tilman Kühn, Francesca Romana Mancini, Amalia Mattiello, Peter M Nilsson, Anja Olsen, Kim Overvad, Domenico Palli, J Ramón Quirós, Olov Rolandsson, Carlotta Sacerdote, Núria Sala, Elena Salamanca-Fernández, Ivonne Sluijs, Annemieke Mw Spijkerman, Anne Tjonneland, Konstantinos K Tsilidis, Rosario Tumino, Yvonne T van der Schouw, Nita G Forouhi, Stephen J Sharp, Claudia Langenberg, Elio Riboli, Matthias B Schulze, Nicholas J Wareham
Fetuin-A, a hepatic-origin protein, is strongly positively associated with risk of type 2 diabetes in human observational studies, but it is unknown whether this association is causal. We aimed to study the potential causal relation of circulating fetuin-A to risk of type 2 diabetes in a Mendelian Randomization study with SNPs located in the fetuin-A-encoding AHSG gene. We used data from eight European countries of the prospective EPIC-InterAct case-cohort study including 10,020 incident cases. Plasma fetuin-A concentration was measured in a subset of 965 subcohort participants and 654 cases...
March 9, 2018: Diabetes
Juan Alberto Paz-Solarte, Marisa Hernández-Garfella, Amalia Rueda-Cid, Cristina Campos-Fernández, Javier Calvo-Catala
No abstract text is available yet for this article.
March 5, 2018: Reumatología Clinica
Maria Sokratous, Efthimios Dardiotis, Eleni Bellou, Zisis Tsouris, Amalia Michalopoulou, Maria Dardioti, Vasileios Siokas, Dimitrios Rikos, Aristidis Tsatsakis, Leda Kovatsi, Dimitrios P Bogdanos, Georgios M Hadjigeorgiou
DNA methylation may predispose to multiple sclerosis (MS), as aberrant methylation in the promoter regions across the genome seems to underlie several processes of MS. We have currently determined the methylation status of eight genes in relapsing-remitting MS patients. Methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) was used to determine the status of 31 CpG islands, located across eight genes, in 33 healthy individuals and 66 MS patients (33 in relapse and 33 in remission)...
March 7, 2018: Journal of Molecular Neuroscience: MN
Nico K Michiels, Victoria C Seeburger, Nadine Kalb, Melissa G Meadows, Nils Anthes, Amalia A Mailli, Colin B Jack
Active sensing using light, or active photolocation, is only known from deep sea and nocturnal fish with chemiluminescent 'search' lights. Bright irides in diurnal fish species have recently been proposed as a potential analogue. Here, we contribute to this discussion by testing whether iris radiance is actively modulated. The focus is on behaviourally controlled iris reflections, called 'ocular sparks'. The triplefin Tripterygion delaisi can alternate between red and blue ocular sparks, allowing us to test the prediction that spark frequency and hue depend on background hue and prey presence...
February 2018: Royal Society Open Science
Amália Machado Bielemann, Raissa Micaella Marcello-Machado, Altair Antoninha Del Bel Cury, Fernanda Faot
OBJECTIVE: To quantify and characterize the role of biomarkers in peri-implant crevicular fluid (PICF) at each stage of healing during osseointegration. DESIGN: This systematic review was performed in accordance with PRISMA guidelines using several databases: MedLine (PubMed), Embase, ISI Web of Science, Scopus, and Cochrane Library. Medical subject headings and their indexers were used with no other limitations until December 2017. The dataset was extended with relevant papers from the reference lists of selected papers and from the gray literature...
February 22, 2018: Archives of Oral Biology
Sharon Daniel, Reut Rotem, Gideon Koren, Eitan Lunenfeld, Amalia Levy
BACKGROUND: Spontaneous abortions are the most common complication of pregnancy. Clotrimazole and miconazole are widely used vaginal-anti-mycotic agents used for the treatment of vulvovaginal candidiasis. A previous study has suggested an increased risk of miscarriage associated with these azoles, which may lead health professionals to refrain from their use even if clinically indicated. The aim of the current study was to assess the risk for spontaneous abortions following first trimester exposure to vaginal-anti-mycotics...
March 3, 2018: American Journal of Obstetrics and Gynecology
Amalia Cochran
No abstract text is available yet for this article.
February 26, 2018: Journal of Surgical Education
Daniel B Reeves, Amalia S Magaret, Alex L Greninger, Christine Johnston, Joshua T Schiffer
Humans can be infected sequentially by different strains of the same virus. Estimating the prevalence of so-called 'superinfection' for a particular pathogen is vital because superinfection implies a failure of immunologic memory against a given virus despite past exposure, which may signal challenges for future vaccine development. Increasingly, viral deep sequencing and phylogenetic inference can discriminate distinct strains within a host. Yet, a population-level study may misrepresent the true prevalence of superinfection for several reasons...
February 2018: Journal of the Royal Society, Interface
Alexandra Barbouti, Konstantinos Evangelou, Ioannis S Pateras, Alexandra Papoudou-Bai, Amalia Patereli, Kalliopi Stefanaki, Dimitra Rontogianni, Daniel Muñoz-Espín, Panagiotis Kanavaros, Vassilis G Gorgoulis
Cellular senescence, an age-related process in response to damage and stress, also occurs during normal development and adult life. The thymus is a central lymphoepithelial organ of the immune system that exhibits age-related changes termed thymic involution. Since the mechanisms regulating thymic involution are still not well elucidated, we questioned whether cellular senescence is implicated in this process. We demonstrate, for the first time in situ, that cellular senescence occurs during human thymic involution using SenTraGor™, a novel chemical compound that is applicable in archival tissue material, providing thus further insights in thymus histophysiology...
February 25, 2018: Mechanisms of Ageing and Development
Tomokazu Ohishi, Tohru Masuda, Hikaru Abe, Chigusa Hayashi, Hayamitsu Adachi, Shun-Ichi Ohba, Masayuki Igarashi, Takumi Watanabe, Hitomi Mimuro, Eri Amalia, Daniel Ken Inaoka, Kota Mochizuki, Kiyoshi Kita, Masakatsu Shibasaki, Manabu Kawada
BACKGROUND: Helicobacter pylori (H. pylori) infection causes various gastrointestinal diseases including gastric cancer. Hence, eradication of this infection could prevent these diseases. The most popular first-line treatment protocol to eradicate H. pylori is termed "triple therapy" and consists of a proton pump inhibitor (PPI), clarithromycin, and amoxicillin or metronidazole. However, the antibiotics used to treat H. pylori infection are hindered by the antibiotics-resistant bacteria and by their antimicrobial activity against intestinal bacteria, leading to side effects...
February 28, 2018: Helicobacter
Marco Cascella, Sabrina Bimonte, Antonio Barbieri, Vitale Del Vecchio, Maria Rosaria Muzio, Andrea Vitale, Giulio Benincasa, Anna Bella Ferriello, Amalia Azzariti, Claudio Arra, Arturo Cuomo
Several nutraceuticals have been investigated for preventing or retarding the progression of different neurodegenerative diseases, including Alzheimer's disease (AD). Because Nigella sativa (NS) and its isolated compound thymoquinone (TQ) have significant anti-oxidant and anti-inflammatory proprieties, they could represent effective neuroprotective agents. The purpose of this manuscript is to analyze and to recapitulate the results of in vitro and in vivo studies on the potential role of NS/TQ in AD's prevention and treatment...
2018: Frontiers in Aging Neuroscience
Cristina Martínez, Ciro Casanova, Juan P de-Torres, José M Marín, Pilar de Lucas, Antonia Fuster, Borja G Cosío, Myriam Calle, Germán Peces-Barba, Ingrid Solanes, Ramón Agüero, Nuria Feu-Collado, Inmaculada Alfageme, Amparo Romero Plaza, Eva Balcells, Alfredo de Diego, Margarita Marín Royo, Amalia Moreno, Antonia Llunel Casanova, Juan B Galdiz, Rafael Golpe, Celia Lacárcel Bautista, Carlos Cabrera, Alicia Marin, Joan B Soriano, Jose Luis Lopez-Campos
BACKGROUND: Despite the existing evidence-based smoking cessation interventions, chances of achieving that goal in real-life are still low among COPD patients. We sought to evaluate the clinical consequences of changes in smoking habits in a large cohort of COPD patients. METHODS: CHAIN is a Spanish multicenter study carried out at pulmonary clinics including active and former smokers with COPD. Smoking status was certified by clinical history and co-oximetry. Clinical presentation and disease impact were recorded via validated questionnaires, including the London Chest Activity of Daily Living (LCADL) and the Hospital Anxiety and Depression Scale (HADS)...
February 21, 2018: Chest
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