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https://www.readbyqxmd.com/read/28103642/subcutaneous-adipose-tissue-response-to-a-non-invasive-hyperthermic-treatment-using-a-1-060%C3%A2-nm-laser
#1
John W Decorato, Bo Chen, Rafael Sierra
BACKGROUND: We postulated that a hyperthermic treatment using a 1,060 nm laser can cause a controlled adipocyte injury resulting in non-invasive fat reduction. This three-part study identified treatment parameters for a safe and tolerable treatment, demonstrated short- and long-term tissue response, and assessed the potential of this treatment for non-invasive fat reduction. METHODS: In vivo temperature measurements were conducted prior to abdominoplasty via a thermal camera (for surface readings) and thermocouple needle (for subcutaneous readings)...
January 19, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28101208/effect-of-bovine-dialyzable-leukocyte-extract-on-induction-of-cell-differentiation-and-death-in-k562-human-chronic-myelogenous-leukemia-cells
#2
Crystel A Sierra-Rivera, Moisés A Franco-Molina, Edgar Mendoza-Gamboa, Pablo Zapata-Benavides, Jesús Santaolalla-Tapia, Erika E Coronado-Cerda, Reyes S Tamez-Guerra, Cristina Rodríguez-Padilla
Differentiation induction therapy is an attractive approach in leukemia treatment due to the fact that in blast crisis stage, leukemic cells lose their differentiation capacity. Therefore, it has been proposed as a therapeutic strategy to induce terminal differentiation of leukemic blast cells into a specific lineage, leading to prevention of high proliferation rates. The aim of the present study was to demonstrate the potential of cell differentiation and death induced by bovine dialyzable leukocyte extract (bDLE) in the K562 cell line...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100032/sequential-learning-during-contextual-fear-conditioning-guides-the-rate-of-systems-consolidation-implications-for-consolidation-of-multiple-memory-traces
#3
Lizeth K Pedraza, Rodrigo O Sierra, Ana P Crestani, Jorge A Quillfeldt, Lucas de Oliveira Alvares
Systems consolidation has been described as a time-dependent reorganization process involving the neocortical and hippocampal networks underlying memory storage and retrieval. Previous studies of our lab were able to demonstrate that systems consolidation is a dynamic process, rather than a merely passive, time-dependent phenomenon. Here, we studied the influence of sequential learning in contextual fear conditioning (CFC) with different training intensities in the time-course of hippocampal dependency and contextual specificity...
January 18, 2017: Hippocampus
https://www.readbyqxmd.com/read/28098707/descriptive-epidemiology-of-acetabular-dysplasia-the-academic-network-of-conservational-hip-outcomes-research-anchor-periacetabular-osteotomy
#4
Wudbhav N Sankar, Stephen T Duncan, Geneva R Baca, Paul E Beaulé, Michael B Millis, Young-Jo Kim, Christopher L Peters, David A Podeszwa, Perry L Schoenecker, Rafael J Sierra, Ernest L Sink, Daniel J Sucato, Robert T Trousdale, Ira Zaltz, John C Clohisy
BACKGROUND: Periacetabular osteotomy (PAO) is an established treatment for symptomatic acetabular dysplasia, which is a well-recognized cause of hip pain, functional limitations, and secondary osteoarthritis. The purpose of this study was to describe the demographics of patients undergoing PAO, the baseline patient-reported outcome measures for this population, and the types of adjunctive procedures performed at the time of PAO surgery. METHODS: Demographics, disease characteristics, and patient-reported functional measures were prospectively collected from all patients who underwent PAO performed by 12 surgeons from 2008 to 2013...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28096517/the-nucleoside-analog-clitocine-is-a-potent-and-efficacious-readthrough-agent
#5
Westley J Friesen, Christopher R Trotta, Yuki Tomizawa, Jin Zhuo, Briana Johnson, Jairo Sierra, Bijoyita Roy, Marla Weetall, Jean Hedrick, Josephine Sheedy, James Takasugi, Young-Choon Moon, Suresh Babu, Ramil Baiazitov, John D Leszyk, Thomas W Davis, Stuart W Peltz, Ellen M Welch
Nonsense mutations resulting in a premature stop codon in an open reading frame occur in critical tumor suppressor genes in a large number of the most common forms of cancers and are known to cause or contribute to the progression of disease. Low molecular weight compounds that induce readthrough of nonsense mutations offer a new means of treating patients with genetic disorders or cancers resulting from nonsense mutations. We have identified the nucleoside analog clitocine as a potent and efficacious suppressor of nonsense mutations...
January 17, 2017: RNA
https://www.readbyqxmd.com/read/28095476/a-systematic-review-of-ebola-treatment-trials-to-assess-the-extent-to-which-they-adhere-to-ethical-guidelines
#6
Thomas Richardson, Andrew McDonald Johnston, Heather Draper
BACKGROUND: Objective: To determine to what extent each trial met criteria specified in three research frameworks for ethical trial conduct. Design: Systematic review and narrative analysis. METHODS AND FINDINGS: Data sources: MEDBASE and EMBASE databases were searched using a specific search strategy. The Cochrane database for systematic reviews, the PROSPERO database and trial registries were examined. A grey literature search and citation search were also carried out...
2017: PloS One
https://www.readbyqxmd.com/read/28094794/diversity-and-carbon-storage-across-the-tropical-forest-biome
#7
Martin J P Sullivan, Joey Talbot, Simon L Lewis, Oliver L Phillips, Lan Qie, Serge K Begne, Jerôme Chave, Aida Cuni-Sanchez, Wannes Hubau, Gabriela Lopez-Gonzalez, Lera Miles, Abel Monteagudo-Mendoza, Bonaventure Sonké, Terry Sunderland, Hans Ter Steege, Lee J T White, Kofi Affum-Baffoe, Shin-Ichiro Aiba, Everton Cristo de Almeida, Edmar Almeida de Oliveira, Patricia Alvarez-Loayza, Esteban Álvarez Dávila, Ana Andrade, Luiz E O C Aragão, Peter Ashton, Gerardo A Aymard C, Timothy R Baker, Michael Balinga, Lindsay F Banin, Christopher Baraloto, Jean-Francois Bastin, Nicholas Berry, Jan Bogaert, Damien Bonal, Frans Bongers, Roel Brienen, José Luís C Camargo, Carlos Cerón, Victor Chama Moscoso, Eric Chezeaux, Connie J Clark, Álvaro Cogollo Pacheco, James A Comiskey, Fernando Cornejo Valverde, Eurídice N Honorio Coronado, Greta Dargie, Stuart J Davies, Charles De Canniere, Marie Noel Djuikouo K, Jean-Louis Doucet, Terry L Erwin, Javier Silva Espejo, Corneille E N Ewango, Sophie Fauset, Ted R Feldpausch, Rafael Herrera, Martin Gilpin, Emanuel Gloor, Jefferson S Hall, David J Harris, Terese B Hart, Kuswata Kartawinata, Lip Khoon Kho, Kanehiro Kitayama, Susan G W Laurance, William F Laurance, Miguel E Leal, Thomas Lovejoy, Jon C Lovett, Faustin Mpanya Lukasu, Jean-Remy Makana, Yadvinder Malhi, Leandro Maracahipes, Beatriz S Marimon, Ben Hur Marimon Junior, Andrew R Marshall, Paulo S Morandi, John Tshibamba Mukendi, Jaques Mukinzi, Reuben Nilus, Percy Núñez Vargas, Nadir C Pallqui Camacho, Guido Pardo, Marielos Peña-Claros, Pascal Pétronelli, Georgia C Pickavance, Axel Dalberg Poulsen, John R Poulsen, Richard B Primack, Hari Priyadi, Carlos A Quesada, Jan Reitsma, Maxime Réjou-Méchain, Zorayda Restrepo, Ervan Rutishauser, Kamariah Abu Salim, Rafael P Salomão, Ismayadi Samsoedin, Douglas Sheil, Rodrigo Sierra, Marcos Silveira, J W Ferry Slik, Lisa Steel, Hermann Taedoumg, Sylvester Tan, John W Terborgh, Sean C Thomas, Marisol Toledo, Peter M Umunay, Luis Valenzuela Gamarra, Ima Célia Guimarães Vieira, Vincent A Vos, Ophelia Wang, Simon Willcock, Lise Zemagho
Tropical forests are global centres of biodiversity and carbon storage. Many tropical countries aspire to protect forest to fulfil biodiversity and climate mitigation policy targets, but the conservation strategies needed to achieve these two functions depend critically on the tropical forest tree diversity-carbon storage relationship. Assessing this relationship is challenging due to the scarcity of inventories where carbon stocks in aboveground biomass and species identifications have been simultaneously and robustly quantified...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094553/burden-of-hiv-syphilis-and-hepatitis-b-and-c-among-inmates-in-a-prison-state-system-in-mexico
#8
Pablo F Belaunzaran-Zamudio, Juan Luis Mosqueda-Gómez, Alejandro Macías-Hernández, Sonia Rodríguez-Ramírez, Juan Sierra-Madero, Chris Beyrer
We studied the prevalence of HIV, syphilis, HBV and HCV infection and associated risk behaviors in the prison state system of Guanajuato, Mexico between September 2011 and February 2012. Blood samples were drawn from adult inmates in all State prisons agreeing to participate in this cross-sectional study. Data on risk behaviors was collected using self-administered questionnaires. Prevalence of HIV, syphilis, HBV and HCV infection was 0.6% (95%CI=0.2-1.1), 0.7% (95%CI=0.4-1.0), 0.4 (95%CI=0.04-0.74) and 4.8 (95%CI=3...
January 17, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28092357/risk-of-sinusoidal-obstruction-syndrome-in-allogeneic-stem-cell-transplantation-after-prior-gemtuzumab-ozogamicin-treatment-a-retrospective-study-from-the-acute-leukemia-working-party-of-the-ebmt
#9
G Battipaglia, M Labopin, A Candoni, R Fanin, J El Cheikh, D Blaise, M Michallet, A Ruggeri, N Contentin, J M Ribera, M Stadler, J Sierra, P A von dem Borne, A Bloor, G Socié, A Nagler, M Mohty
Gemtuzumab ozogamicin (GO) may increase the risk of sinusoidal obstruction syndrome (SOS) when used prior to allogeneic stem cell transplantation (HSCT). We assessed SOS incidence and outcomes after HSCT of 146 adults, with a median age of 50 years, previously receiving GO. SOS prophylaxis was used in 69 patients (heparin n=57, ursodeoxycholic acid n=8, defibrotide n=4). Cumulative incidence (CI) of SOS was 8% (n=11), with death in 3 patients. Median interval between last GO dose and HSCT was 130 days. Overall survival (OS) and SOS incidence did not differ for patients receiving GO ⩽3...
January 16, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28092255/-the-importance-of-promoting-the-bioethical-seeds-in-the-university
#10
Paola Pérez-Polanco, Luis Manuel Montaño-Zetina
One of the main scopes for institutions dedicated to preparing professionals in health is to increase their bioethics profile. To achieve this scope, these institutions have included lessons in bioethics into their study plans. Another way to increase the profile of the students, as the authors of this article propose, is creating bioethics seeds through a bioethics interest diagnostic on the students' preferences in their first year of the Justo Sierra University using a particular clinical case. The results found indicated that students show more interest in learning the physiopathology, diagnostics, and therapy of the pathologies than bioethics...
January 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28091823/skeletal-muscle-inflammation-and-atrophy-in-heart-failure
#11
Kory J Lavine, Oscar L Sierra
Heart failure represents a systemic disease with profound effects on multiple peripheral tissues including skeletal muscle. Within the context of heart failure, perturbations in skeletal muscle physiology, structure, and function strongly contribute to exercise intolerance and the morbidity of this devastating disease. There is growing evidence that chronic heart failure imparts specific pathological changes within skeletal muscle beds resulting in muscle dysfunction and tissue atrophy. Mechanistically, systemic and local inflammatory responses drive critical aspects of this pathology...
January 14, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28089691/orcokinin-neuropeptides-regulate-ecdysis-in-the-hemimetabolous-insect-rhodnius-prolixus
#12
Juan Pedro Wulff, Ivana Sierra, Marcos Sterkel, Michiel Holtof, Pieter Van Wielendaele, Flavio Francini, Jozef Vanden Broeck, Sheila Ons
To grow and develop insects must undergo ecdysis. During this process, the individual sheds the old cuticle to emerge as the following developmental stage. During ecdysis, different programed behaviors are regulated by neuropeptidergic pathways. In general, components of these pathways are better characterized in crustacean and holometabolous insects than in hemimetabola. In insects, the orkoninin gene produces two different neuropeptide precursors by alternative splicing: orcokinin A and orcokinin B. Although orcokinins are well conserved in insect species, their physiological role remains elusive...
January 9, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28086892/pressure-ulcer-image-segmentation-technique-through-synthetic-frequencies-generation-and-contrast-variation-using-toroidal-geometry
#13
Ortiz P David, Daniel Sierra-Sosa, Begoña García Zapirain
BACKGROUND: Pressure ulcers have become subject of study in recent years due to the treatment high costs and decreased life quality from patients. These chronic wounds are related to the global life expectancy increment, being the geriatric and physical disable patients the principal affected by this condition. Injuries diagnosis and treatment usually takes weeks or even months by medical personel. Using non-invasive techniques, such as image processing techniques, it is possible to conduct an analysis from ulcers and aid in its diagnosis...
January 6, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28079420/international-nursing-reflections-on-working-in-sierra-leone
#14
Sergeant Julie Jones
Registered Nurse, 4626 (AE) Sqn, RAuxAF, RAF Brize Norton/Nurse Practitioner, Center Parcs Sherwood Forest, Nottinghamshire looks back over her time working in A&E in Sierra Leone.
January 12, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28078451/slower-but-not-faster-unilateral-fatiguing-knee-extensions-alter-contralateral-limb-performance-without-impairment-of-maximal-torque-output
#15
Olaf Prieske, Saied J Aboodarda, José A Benitez Sierra, David G Behm, Urs Granacher
PURPOSE: The purpose of the present study was to examine the effects of unilateral fatigue of the knee extensors at different movement velocities on neuromuscular performance in the fatigued and non-fatigued leg. METHODS: Unilateral fatigue of the knee extensors was induced in 11 healthy young men (23.7 ± 3.8 years) at slower (60°/s; FAT60) and faster movement velocities (240°/s; FAT240) using an isokinetic dynamometer. A resting control (CON) condition was included...
January 11, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28076784/coupled-proliferation-and-apoptosis-maintain-the-rapid-turnover-of-microglia-in-the-adult-brain
#16
Katharine Askew, Kaizhen Li, Adrian Olmos-Alonso, Fernando Garcia-Moreno, Yajie Liang, Philippa Richardson, Tom Tipton, Mark A Chapman, Kristoffer Riecken, Sol Beccari, Amanda Sierra, Zoltán Molnár, Mark S Cragg, Olga Garaschuk, V Hugh Perry, Diego Gomez-Nicola
Microglia play key roles in brain development, homeostasis, and function, and it is widely assumed that the adult population is long lived and maintained by self-renewal. However, the precise temporal and spatial dynamics of the microglial population are unknown. We show in mice and humans that the turnover of microglia is remarkably fast, allowing the whole population to be renewed several times during a lifetime. The number of microglial cells remains steady from late postnatal stages until aging and is maintained by the spatial and temporal coupling of proliferation and apoptosis, as shown by pulse-chase studies, chronic in vivo imaging of microglia, and the use of mouse models of dysregulated apoptosis...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28076709/phase-3-trial-of-177-lu-dotatate-for-midgut-neuroendocrine-tumors
#17
RANDOMIZED CONTROLLED TRIAL
Jonathan Strosberg, Ghassan El-Haddad, Edward Wolin, Andrew Hendifar, James Yao, Beth Chasen, Erik Mittra, Pamela L Kunz, Matthew H Kulke, Heather Jacene, David Bushnell, Thomas M O'Dorisio, Richard P Baum, Harshad R Kulkarni, Martyn Caplin, Rachida Lebtahi, Timothy Hobday, Ebrahim Delpassand, Eric Van Cutsem, Al Benson, Rajaventhan Srirajaskanthan, Marianne Pavel, Jaime Mora, Jordan Berlin, Enrique Grande, Nicholas Reed, Ettore Seregni, Kjell Öberg, Maribel Lopera Sierra, Paola Santoro, Thomas Thevenet, Jack L Erion, Philippe Ruszniewski, Dik Kwekkeboom, Eric Krenning
Background Patients with advanced midgut neuroendocrine tumors who have had disease progression during first-line somatostatin analogue therapy have limited therapeutic options. This randomized, controlled trial evaluated the efficacy and safety of lutetium-177 ((177)Lu)-Dotatate in patients with advanced, progressive, somatostatin-receptor-positive midgut neuroendocrine tumors. Methods We randomly assigned 229 patients who had well-differentiated, metastatic midgut neuroendocrine tumors to receive either (177)Lu-Dotatate (116 patients) at a dose of 7...
12, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28074385/use-of-a-cd-laser-pickup-head-to-fabricate-microelectrodes-in-polymethylmethacrylate-substrates-for-biosensing-applications
#18
Jehú López-Aparicio, Mathieu Hautefeuille, Sara Herrera-Domínguez, Adriana Razo-de-León, Mariel Cano-Jorge, Ixchetl Rojas-Benito, Mariana Centeno-Sierra, Tatiana Fiordelisio-Coll, Catalina Elizabeth Stern-Forgach
In this work, we report a simple fabrication method for microelectrodes on a polymethylmethacrylate substrate, using a low-cost laser platform based on a CD-DVD unit for direct rapid-prototyping. We used this laser microfabrication technique to etch any desired design on polymethylmethacrylate substrates to produce microchannels with controlled geometry, with a highly repeatable micron-scale resolution. Those shallow microchannels were then filled with a conductive paste of material of our choice that was converted into microelectrodes of desired shapes and geometries after drying...
March 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28068296/orientation-selective-deep-brain-stimulation
#19
Lauri J Lehto, Julia P Slopsema, Matthew D Johnson, Artem Shatillo, Benjamin A Teplitzky, Lynn Utecht, Gregor Adriany, Silvia Mangia, Alejandra Sierra, Walter C Low, Olli Gröhn, Shalom Michaeli
OBJECTIVE: Target selectivity of deep brain stimulation (DBS) therapy is critical, as the precise locus and pattern of the stimulation dictates the degree to which desired treatment responses are achieved and adverse side effects are avoided. There is a clear clinical need to improve DBS technology beyond currently available stimulation steering and shaping approaches. We introduce orientation selective neural stimulation as a concept to increase the specificity of target selection in DBS...
February 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28065544/solar-radiation-as-a-swift-pathway-for-pah-photodegradation-a-field-study
#20
Montse Marquès, Montse Mari, Jordi Sierra, Martí Nadal, José L Domingo
The photodegradation of polycyclic aromatic hydrocarbons (PAHs) may be an important degradation pathway of PAHs in regions with a high solar radiation. The present investigation was aimed at studying the photodegradation of PAHs after their deposition on surface soils with different textures. Photodegradation by-products were also identified and semi-quantified, as well as correlated with the decrease of parent compounds. The experiment was performed by deploying soil samples spiked with a mixture of the 16 US EPA priority PAHs in a methacrylate box, exposed to solar radiation for 7days, meaning a solar energy of 102...
January 5, 2017: Science of the Total Environment
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