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https://www.readbyqxmd.com/read/28522962/alterations-in-cd200-cd200r1-system-during-eae-already-manifest-at-presymptomatic-stages
#1
Tony Valente, Joan Serratosa, Unai Perpiñá, Josep Saura, Carme Solà
In the brain of patients with multiple sclerosis, activated microglia/macrophages appear in active lesions and in normal appearing white matter. However, whether they play a beneficial or a detrimental role in the development of the pathology remains a controversial issue. The production of pro-inflammatory molecules by chronically activated microglial cells is suggested to contribute to the progression of neurodegenerative processes in neurological disease. In the healthy brain, neurons control glial activation through several inhibitory mechanisms, such as the CD200-CD200R1 interaction...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28522171/brain-correlates-of-progressive-olfactory-loss-in-parkinson-s-disease
#2
Anna Campabadal, Carme Uribe, Barbara Segura, Hugo C Baggio, Alexandra Abos, Anna Isabel Garcia-Diaz, Maria Jose Marti, Francesc Valldeoriola, Yaroslau Compta, Nuria Bargallo, Carme Junque
BACKGROUND: Olfactory dysfunction is present in a large proportion of patients with Parkinson's disease (PD) upon diagnosis. However, its progression over time has been poorly investigated. The few available longitudinal studies lack control groups or MRI data. OBJECTIVE: To investigate the olfactory changes and their structural correlates in non-demented PD over a four-year follow-up. METHODS: We assessed olfactory function in a sample of 25 PD patients and 24 normal controls of similar age using the University of Pennsylvania Smell Identification test (UPSIT)...
May 10, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28521831/the-sitless-project-exercise-referral-schemes-enhanced-by-self-management-strategies-to-battle-sedentary-behaviour-in-older-adults-study-protocol-for-a-randomised-controlled-trial
#3
Maria Giné-Garriga, Laura Coll-Planas, Míriam Guerra, Àlex Domingo, Marta Roqué, Paolo Caserotti, Michael Denkinger, Dietrich Rothenbacher, Mark A Tully, Frank Kee, Emma McIntosh, Carme Martín-Borràs, Guillermo R Oviedo, Javier Jerez-Roig, Marta Santiago, Oriol Sansano, Guillermo Varela, Mathias Skjødt, Katharina Wirth, Dhayana Dallmeier, Jochen Klenk, Jason J Wilson, Nicole E Blackburn, Manuela Deidda, Guillaume Lefebvre, Denise González, Antoni Salvà
BACKGROUND: Older adults are the fastest growing segment of the world's population. Recent evidence indicates that excessive sitting time is harmful to health, independent of meeting the recommended moderate to vigorous physical activity (PA) guidelines. The SITLESS project aims to determine whether exercise referral schemes (ERS) can be enhanced by self-management strategies (SMSs) to reduce sedentary behaviour (SB), increase PA and improve health, quality of life and function in the long term, as well as psychosocial outcomes in community-dwelling older European citizens from four countries, within a three-armed pragmatic randomised controlled trial, compared with ERS alone and also with general recommendations about PA...
May 18, 2017: Trials
https://www.readbyqxmd.com/read/28517021/low-discriminating-power-of-the-modified-ottawa-vte-risk-score-in-a-cohort-of-patients-with-cancer-from-the-riete-registry
#4
Adriano Alatri, Lucia Mazzolai, Carme Font, Alfonso Tafur, Reina Valle, Pablo Javier Marchena, Aitor Ballaz, Eros Tiraferri, Llorenç Font, Manuel Monreal
Treatment of patients with cancer-associated venous thromboembolism (VTE) remains a major challenge. The modified Ottawa score is a clinical prediction rule evaluating the risk of VTE recurrences during the first six months of anticoagulant treatment in patients with cancer-related VTE. We aimed to validate the Ottawa score using data from the RIETE registry. A total of 11,123 cancer patients with VTE were included in the analysis. According to modified Ottawa score, 2,343 (21 %) were categorised at low risk for VTE recurrences, 4,525 (41 %) at intermediate risk, and 4,255 (38 %) at high risk...
May 18, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28493500/conformational-analysis-of-the-mannosidase-inhibitor-kifunensine-a-quantum-mechanical-and-structural-approach
#5
Alexandra Males, Lluis Raich, Spencer J Williams, Carme Rovira, Gideon John Davies
The varied yet family-specific conformational pathways utilized by individual glycoside hydrolases (GHs) offer a tantalising prospect for the design of tight binding and specific enzyme inhibitors. A cardinal example of a GH family specific inhibitor, and one that finds widespread practical use, is the natural product kifunensine, which is a low nanomolar inhibitor selective for GH family 47 inverting a-mannosidases. Here we show, through quantum mechanical approaches, that kifunensine is restrained to a 'ring-flipped' 1C4 conformation with another accessible, but higher-energy, region around the 1,4B conformation...
May 11, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28486961/role-of-heparin-in-pulmonary-cell-populations-in-an-in-vitro-model-of-acute-lung-injury
#6
Marta Camprubí-Rimblas, Raquel Guillamat-Prats, Thomas Lebouvier, Josep Bringué, Laura Chimenti, Manuela Iglesias, Carme Obiols, Jessica Tijero, Lluís Blanch, Antonio Artigas
BACKGROUND: In the early stages of acute respiratory distress syndrome (ARDS), pro-inflammatory mediators inhibit natural anticoagulant factors and initiate an increase in procoagulant activity. Previous studies proved the beneficial effects of heparin in pulmonary coagulopathy, which derive from its anticoagulant and anti-inflammatory activities, although it is uncertain whether heparin works. Understanding the specific effect of unfractioned heparin on cell lung populations would be of interest to increase our knowledge about heparin pathways and to treat ARDS...
May 10, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28486697/evolution-and-dissemination-of-the-klebsiella-pneumoniae-clonal-group-258-throughout-israeli-post-acute-care-hospitals-2008-13
#7
Amos Adler, Ziv Lifshitz, Michal Gordon, Debbie Ben-David, Efrat Khabra, Samira Masarwa, Orit Zion, Mitchell J Schwaber, Yehuda Carmeli
Objectives: The KPC-producing Klebsiella pneumoniae (KPC-KP) clonal group (CG) 258 has disseminated throughout Israeli post-acute care hospitals (PACHs). The objectives of the study were (i) to describe the evolution and (ii) to understand the dissemination modes of CG 258 in the PACH system in Israel. Methods: KPC-KP surveillance cultures isolates were collected in Israeli PACHs in three national point-prevalence surveys: 2008, 2011 and 2013. CG 258 was identified by pilv-l PCR...
May 9, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28481460/high-efficacy-of-sofosbuvir-plus-simeprevir-in-a-large-cohort-of-spanish-cirrhotic-patients-infected-with-genotypes-1-and-4
#8
Zoe Mariño, Juan Manuel Pascasio-Acevedo, Adolfo Gallego, Moisés Diago, Carme Baliellas, Rosa Morillas, Martín Prieto, José María Moreno, Gloria Sánchez-Antolín, Mercedes Vergara, Montserrat Forné, Inmaculada Fernández, Maria Ángeles Castro, Sonia Pascual, Alexandra Gómez, Lluis Castells, Jose Luis Montero, Javier Crespo, Jose Luis Calleja, Javier García-Samaniego, Jose Antonio Carrión, Ana Del Carmen Arencibia, Alejandro Blasco, Carmen López-Núñez, Juan José Sánchez-Ruano, Francisco Gea-Rodríguez, Álvaro Giráldez, Joaquín Cabezas, Vanessa Hontangas, Xavier Torras, Jose Castellote, Manuel Romero-Gómez, Juan Turnes, Tomás de Artaza, Isidoro Narváez, Valentín Cuervas-Mons, Xavier Forns
BACKGROUND AND AIMS: Hepatitis C (HCV) therapy with Sofosbuvir(SOF)/ Simeprevir(SMV) in clinical trials and real-world clinical practice, showed high rates of sustained virological response (SVR) in non-cirrhotic genotype(GT)-1 and 4 patients. These results were slightly lower in cirrhotic patients. We investigated real-life effectiveness and safety of SOF/SMV with or without ribavirin(RBV) in a large cohort of cirrhotic patients. METHODS: This collaborative multicentre study included data from 968 patients with cirrhosis infected with HCV-GT1 or 4, treated with SOF/SMV±RBV in 30 centres across Spain between January-2014 and December-2015...
May 8, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28468934/a-genome-editing-approach-to-study-cancer-stem-cells-in-human-tumors
#9
Carme Cortina, Gemma Turon, Diana Stork, Xavier Hernando-Momblona, Marta Sevillano, Mònica Aguilera, Sébastien Tosi, Anna Merlos-Suárez, Camille Stephan-Otto Attolini, Elena Sancho, Eduard Batlle
The analysis of stem cell hierarchies in human cancers has been hampered by the impossibility of identifying or tracking tumor cell populations in an intact environment. To overcome this limitation, we devised a strategy based on editing the genomes of patient-derived tumor organoids using CRISPR/Cas9 technology to integrate reporter cassettes at desired marker genes. As proof of concept, we engineered human colorectal cancer (CRC) organoids that carry EGFP and lineage-tracing cassettes knocked in the LGR5 locus...
May 2, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28467780/novel-transcription-induced-fusion-rnas-in-prostate-cancer
#10
Sen Zhao, Marthe Løvf, Kristina Totland Carm, Anne Cathrine Bakken, Andreas M Hoff, Rolf I Skotheim
Prostate cancer is a clinically and pathologically heterogeneous disease with a broad spectrum of molecular abnormalities in the genome and transcriptome. One key feature is the involvement of chromosomal rearrangements creating fusion genes. Recent RNA-sequencing technology has uncovered that fusions which are not caused by chromosomal rearrangements, but rather meditated at transcription level, are common in both healthy and diseased cells. Such fusion transcripts have been proven highly associated with prostate cancer development and progression...
April 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28465282/mhealth-assessment-conceptualization-of-a-global-framework
#11
Meghan Bradway, Carme Carrion, Bárbara Vallespin, Omid Saadatfard, Elisa Puigdomènech, Mireia Espallargues, Anna Kotzeva
BACKGROUND: The mass availability and use of mobile health (mHealth) technologies offers the potential for these technologies to support or substitute medical advice. However, it is worrisome that most assessment initiatives are still not able to successfully evaluate all aspects of mHealth solutions. As a result, multiple strategies to assess mHealth solutions are being proposed by medical regulatory bodies and similar organizations. OBJECTIVE: We aim to offer a collective description of a universally applicable description of mHealth assessment initiatives, given their current and, as we see it, potential impact...
May 2, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28463498/carba-cyclophellitols-are-neutral-retaining-glucosidase-inhibitors
#12
Thomas J M Beenakker, Dennis P A Wander, Wendy A Offen, Marta Artola, Lluís Raich, Maria J Ferraz, Kah-Yee Li, Judith H P M Houben, Erwin R van Rijssel, Thomas Hansen, Gijsbert A van der Marel, Jeroen D C Codée, Johannes M F G Aerts, Carme Rovira, Gideon J Davies, Herman S Overkleeft
The conformational analysis of glycosidases affords a route to their specific inhibition through transition-state mimicry. Inspired by the rapid reaction rates of cyclophellitol and cyclophellitol aziridine-both covalent retaining β-glucosidase inhibitors-we postulated that the corresponding carba "cyclopropyl" analogue would be a potent retaining β-glucosidase inhibitor for those enzymes reacting through the (4)H3 transition-state conformation. Ab initio metadynamics simulations of the conformational free energy landscape for the cyclopropyl inhibitors show a strong bias for the (4)H3 conformation, and carba-cyclophellitol, with an N-(4-azidobutyl)carboxamide moiety, proved to be a potent inhibitor (Ki = 8...
May 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28457933/circuit-resistance-training-is-an-effective-means-to-enhance-muscle-strength-in-older-adults-a-systematic-review-and-meta-analysis
#13
REVIEW
Assaf Buch, Ofer Kis, Eli Carmeli, Lital Keinan-Boker, Yitshal Berner, Yael Barer, Gabi Shefer, Yonit Marcus, Naftali Stern
Physical exercise, particularly resistance training (RT), is presently the only proven means to reduce the accelerated decline in muscle strength exhibited by older adults, but its effect is hindered by low adherence rate, even under well-structured programs. Here we investigate the efficacy of circuit resistance training (CRT) on muscle strength, lean mass and aerobic capacity in older adults. MEDLINE (Ovid), EMBASE, ClinicalTrials.gov, Cochrane electronic databases were systematically searched including references of pertinent articles up to August 2016...
April 27, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28457523/underdiagnosis-of-mild-congenital-anorectal-malformations
#14
Jara E Jonker, Monika Trzpis, Paul M A Broens
OBJECTIVE: To determine whether the frequency and severity of congenital anorectal malformations (CARMs) differs by sex. STUDY DESIGN: We included 129 patients (0-319 weeks old) diagnosed with CARMs, who had been referred to our Department of Pediatric Surgery between 2004 and 2013. Rectoperineal and rectovestibular fistulas were classified as mild CARMs, all others as severe. If a patient was diagnosed with CARM within 48 hours after birth, this was considered an early diagnosis, all others as late...
April 27, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28449724/does-medical-school-research-productivity-predict-a-resident-s-research-productivity-during-residency
#15
Scott Kohlert, Laura Zuccaro, Laurie McLean, Kristian Macdonald
BACKGROUND: Research productivity is an important component of the CanMEDS Scholar role and is an accreditation requirement of Canadian Otolaryngology training programs. Our objective was to determine if an association exists between publication rates before and during Otolaryngology residency. METHODS: We obtained the names for all certified Canadian Otolaryngologists who graduated between 1998 and 2013 inclusive, and conducted a Medline search for all of their publications...
April 27, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28447483/the-role-of-adhesions-between-homologous-cancer-cells-in-tumor-progression-and-targeted-therapy
#16
Jie Xia, Yuhao Cheng, Hang Zhang, Rutian Li, Yiqiao Hu, Baorui Liu
Adhesions between homologous cancer cells play an important role in promoting tumor progression and designing tumor-targeting methods. Known as 'homologous adhesions' of cancerous cells, these are usually more specific than adhesions to normal cells and heterogenic cells, and they have been widely discovered both in vivo and in vitro. The aberrant expression of cell adhesion-related molecules (CARMs) on each species of cancer cells is mainly responsible for inducing more specific homologous adhesions. Based on the improvement of biomimetic technologies, such adhesion has been investigated and applied deeply in drug delivery systems recently...
May 2, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28446892/the-effect-of-coaches-controlling-style-on-the-competitive-anxiety-of-young-athletes
#17
Yago Ramis, Miquel Torregrosa, Carme Viladrich, Jaume Cruz
Framed on a Self-Determination Theory perspective, the purpose of this study was to explore the predictive capacity of coaches' interpersonal controlling style on the competitive anxiety of young athletes, considering the mediating effect of the athletes' controlled motivation on this relationship. The sample consisted of 1166 athletes, aged between 9 and 18, who ranked their perceptions of coaches' controlling style, as well as the reasons for participating in sport and their competitive anxiety before or during competition...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28442293/effect-of-appropriate-combination-therapy-on-mortality-of-patients-with-bloodstream-infections-due-to-carbapenemase-producing-enterobacteriaceae-increment-a-retrospective-cohort-study
#18
Belén Gutiérrez-Gutiérrez, Elena Salamanca, Marina de Cueto, Po-Ren Hsueh, Pierluigi Viale, José Ramón Paño-Pardo, Mario Venditti, Mario Tumbarello, George Daikos, Rafael Cantón, Yohei Doi, Felipe Francisco Tuon, Ilias Karaiskos, Elena Pérez-Nadales, Mitchell J Schwaber, Özlem Kurt Azap, Maria Souli, Emmanuel Roilides, Spyros Pournaras, Murat Akova, Federico Pérez, Joaquín Bermejo, Antonio Oliver, Manel Almela, Warren Lowman, Benito Almirante, Robert A Bonomo, Yehuda Carmeli, David L Paterson, Alvaro Pascual, Jesús Rodríguez-Baño
BACKGROUND: The best available treatment against carbapenemase-producing Enterobacteriaceae (CPE) is unknown. The objective of this study was to investigate the effect of appropriate therapy and of appropriate combination therapy on mortality of patients with bloodstream infections (BSIs) due to CPE. METHODS: In this retrospective cohort study, we included patients with clinically significant monomicrobial BSIs due to CPE from the INCREMENT cohort, recruited from 26 tertiary hospitals in ten countries...
April 21, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28437016/electromechanical-nanogenerator-cell-interaction-modulates-cell-activity
#19
Gonzalo Murillo, Andreu Blanquer, Carolina Vargas-Estevez, Lleonard Barrios, Elena Ibáñez, Carme Nogués, Jaume Esteve
Noninvasive methods for in situ electrical stimulation of human cells open new frontiers to future bioelectronic therapies, where controlled electrical impulses could replace the use of chemical drugs for disease treatment. Here, this study demonstrates that the interaction of living cells with piezoelectric nanogenerators (NGs) induces a local electric field that self-stimulates and modulates their cell activity, without applying an additional chemical or physical external stimulation. When cells are cultured on top of the NGs, based on 2D ZnO nanosheets, the electromechanical NG-cell interactions stimulate the motility of macrophages and trigger the opening of ion channels present in the plasma membrane of osteoblast-like cells (Saos-2) inducing intracellular calcium transients...
April 24, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28427527/venous-thromboembolism-in-radiation-therapy-cancer-patients-findings-from-the-riete-registry
#20
REVIEW
Jean-Baptiste Guy, Laurent Bertoletti, Nicolas Magné, Chloé Rancoule, Isabelle Mahé, Carme Font, Oscar Sanz, José Manuel Martín-Antorán, Federica Pace, Jerónimo Ramón Vela, Manuel Monreal
BACKGROUND: Cancer patients are at high risk of venous thromboembolism, particularly during cancer treatment. Conversely to chemotherapy, data on the epidemiology and clinical features of venous thromboembolism during radiation therapy are scarce. There is lack of evidence on the influence of radiation therapy (RT) on outcome in cancer patients with acute venous thromboembolism (VTE). METHODS: We used the RIETE (Registro Informatizado de Enfermedad ThromboEmbolica) database to assess the clinical characteristics and outcome of prospectively-collected consecutive patients with cancer-associated thrombosis occurred during the course of radiation therapy for cancer...
May 2017: Critical Reviews in Oncology/hematology
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