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https://www.readbyqxmd.com/read/29786686/author-correction-rapid-signal-enhancement-method-for-nanoprobe-based-biosensing
#1
Jorge T Dias, Gustav Svedberg, Mats Nystrand, Helene Andersson-Svahn, Jesper Gantelius
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29786556/assessment-of-stem-cell-differentiation-based-on-genome-wide-expression-profiles
#2
REVIEW
Patricio Godoy, Wolfgang Schmidt-Heck, Birte Hellwig, Patrick Nell, David Feuerborn, Jörg Rahnenführer, Kathrin Kattler, Jörn Walter, Nils Blüthgen, Jan G Hengstler
In recent years, protocols have been established to differentiate stem and precursor cells into more mature cell types. However, progress in this field has been hampered by difficulties to assess the differentiation status of stem cell-derived cells in an unbiased manner. Here, we present an analysis pipeline based on published data and methods to quantify the degree of differentiation and to identify transcriptional control factors explaining differences from the intended target cells or tissues. The pipeline requires RNA-Seq or gene array data of the stem cell starting population, derived 'mature' cells and primary target cells or tissue...
July 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29786164/air-activated-self-decontaminating-polydicyclopentadiene-polyhipe-foams-for-rapid-decontamination-of-chemical-warfare-agents
#3
Christopher L McGann, Grant C Daniels, Spencer L Giles, Robert B Balow, Jorge L Miranda-Zayas, Jeffrey G Lundin, James H Wynne
The threat of chemical warfare agents (CWA) compels research into novel self-decontaminating materials (SDM) for the continued safety of first-responders, civilians, and active service personnel. The capacity to actively detoxify, as opposed to merely sequester, offending agents under typical environmental conditions defines the added value of SDMs in comparison to traditional adsorptive materials. Porous polymers, synthesized via the high internal phase emulsion (HIPE) templating, provide a facile fabrication method for materials with permeable open cellular structures that may serve in air filtration applications...
May 22, 2018: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/29785884/morphological-changes-and-myocardial-function-assessed-by-traditional-and-novel-echocardiographic-methods-in-preadolescent-athlete-s-heart
#4
Anders W Bjerring, Hege Ew Landgraff, Svein Leirstein, Anette Aaeng, Hamza Z Ansari, Jørg Saberniak, Klaus Murbræch, Henrik Bruun, Thomas M Stokke, Kristina H Haugaa, Jostein Hallén, Thor Edvardsen, Sebastian I Sarvari
Background Athlete's heart is a term used to describe the morphological and functional changes in the hearts of athletes. Recent studies suggest that these changes may occur even in preadolescent athletes. This study aims to improve our understanding of the changes occurring in the preadolescent athlete's heart. Design and methods Cardiac morphology and function in 76 preadolescent cross-country skiers (aged 12.1 ± 0.2 years) were compared with 25 age-matched non-competing preadolescents. Echocardiography was performed in all subjects, including 2D speckle-tracking strain echocardiography and 3D echocardiography...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29785766/schizophyllum-commune-an-unexploited-source-for-lignocellulose-degrading-enzymes
#5
REVIEW
Omar Eduardo Tovar-Herrera, Adriana Mayrel Martha-Paz, Yordanis Pérez-LLano, Elisabet Aranda, Juan Enrique Tacoronte-Morales, María Teresa Pedroso-Cabrera, Katiushka Arévalo-Niño, Jorge Luis Folch-Mallol, Ramón Alberto Batista-García
Lignocellulose represents the most abundant source of carbon in the Earth. Thus, fraction technology of the biomass turns up as an emerging technology for the development of biorefineries. Saccharification and fermentation processes require the formulation of enzymatic cocktails or the development of microorganisms (naturally or genetically modified) with the appropriate toolbox to produce a cost-effective fermentation technology. Therefore, the search for microorganisms capable of developing effective cellulose hydrolysis represents one of the main challenges in this era...
May 21, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29785709/four-year-follow-up-of-a-single-arm-phase-ii-clinical-trial-of-ibrutinib-with-rituximab-ir-in-patients-with-relapsed-refractory-mantle-cell-lymphoma-mcl
#6
Preetesh Jain, Jorge Romaguera, Samer A Srour, Hun J Lee, Frederick Hagemeister, Jason Westin, Luis Fayad, Felipe Samaniego, Maria Badillo, Liang Zhang, Lorreta Nastoupil, Rashmi Kanagal-Shamanna, Nathan Fowler, Michael L Wang
Ibrutinib has shown significant activity in patients with relapsed or refractory mantle cell lymphoma (RR-MCL). We report the long-term outcome and safety profile of a single-centre, single arm, open-label, phase 2 study of RR-MCL treated with IR. Overall, the median follow-up time was 47 months (range 1-52 months), median duration on treatment was 16 months (range 1-53 months) and median number of treatment cycles was 17 (range 1-56). Twenty-nine patients (58%) achieved complete remission and of these, 12 patients continue on study...
May 22, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29785495/d-lactate-and-intestinal-fatty-acid-binding-protein-are-elevated-in-serum-in-patients-with-acute-ischemic-stroke
#7
Carlos R Camara-Lemarroy, Nicolás Escobedo-Zúñiga, Francisco J Guzmán-de la Garza, Jorge Castro-Garza, Javier Vargas-Villarreal, Fernando Góngora-Rivera
Experimental studies suggest that the intestinal barrier is affected in ischemic stroke. D-Lactate and intestinal fatty acid-binding protein (IFABP) are markers of intestinal mucosa integrity and barrier function. Our purpose was to evaluate the serum concentrations of these markers in patients with acute ischemic stroke (AIS). We included patients with AIS and used healthy subjects as controls. Clinical, demographic and outcome measures were recorded. Blood was drawn within 24 h of symptom onset. Serum concentrations of D-Lactate and IFABP were determined using commercially available colorimetric and ELISA kits, respectively...
May 21, 2018: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29785300/corneal-stability-following-hyperopic-lasik-with-advanced-laser-ablation-profiles-analyzed-by-a-light-propagation-study
#8
Almutez M Gharaibeh, Asier Villanueva, David Mas, Julian Espinosa, Jorge L Alió
Purpose: To assess anterior corneal surface stability 12 months following hyperopic LASIK correction with a light propagation algorithm. Setting: Vissum Instituto Oftalmológico de Alicante, Universidad Miguel Hernández, Alicante, Spain. Methods: This retrospective consecutive observational study includes 37 eyes of 37 patients treated with 6th-generation excimer laser platform (Schwind Amaris). Hyperopic LASIK was performed in all of them by the same surgeon (JLA) and completed 12-month follow-up...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29784954/the-structural-basis-of-nanobody-unfolding-reversibility-and-thermoresistance
#9
Patrick Kunz, Katinka Zinner, Norbert Mücke, Tanja Bartoschik, Serge Muyldermans, Jörg D Hoheisel
Nanobodies represent the variable binding domain of camelid heavy-chain antibodies and are employed in a rapidly growing range of applications in biotechnology and biomedicine. Their success is based on unique properties including their reported ability to reversibly refold after heat-induced denaturation. This view, however, is contrasted by studies which involve irreversibly aggregating nanobodies, asking for a quantitative analysis that clearly defines nanobody thermoresistance and reveals the determinants of unfolding reversibility and aggregation propensity...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29784345/development-of-dried-serum-spot-sampling-techniques-for-the-assessment-of-trace-elements-in-serum-samples-by-la-icp-ms
#10
María Pilar Chantada-Vázquez, Jorge Moreda-Piñeiro, Alicia Cantarero-Roldán, Pilar Bermejo-Barrera, Antonio Moreda-Piñeiro
A novel approach for serum analysis by dried matrix spot (DMS) technique is proposed. The methodology consists of sampling filter paper discs (2.7 mm in diameter) containing the large amount of serum retained after a single spotting. Several oxidizers (sodium chlorate, sodium azide, acetic acid, formic acid, 1-butyl-3-methylimidazoliumm chloride/bromide) were tested (oxidizers premixed with the sample before spotting, and papers previously soaked in concentrated additive/oxidizer solutions). Direct multi-element determination (Al, Be, Ca, Cu, Fe, K, Li, Mg, Mn, Mo, Na, P, Rb, Se, V, and Zn) in dried serum spots at very low levels was therefore assessed by laser ablation (LA) coupled with inductively coupled plasma - mass spectrometry (ICP-MS)...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29783271/mid-term-clinical-outcome-and-reconstruction-of-posterior-tibial-slope-after-uka
#11
Alois Franz, Christoph Kolja Boese, Andrej Matthies, Jörg Leffler, Christian Ries
Unicompartmental knee arthroplasty (UKA) has gained growing popularity over the last decades. The posterior tibial slope (PTS) has been shown to play a significant role for knee biomechanics and is thought to be crucial for clinical function of the UKA. We evaluated the clinical outcome at mid-term follow-up after UKA. Furthermore, the reconstruction of the individual PTS was analyzed. A total of 91 consecutive patients undergoing medial UKA for osteoarthritis were included. Patients were contacted by telephone for a survival analysis at a minimum of 30 months after surgery...
May 21, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29783174/facile-isolation-of-%C3%AE-ribazole-from-vitamin-b-12-hydrolysates-using-boronate-affinity-chromatography
#12
Theodoric A Mattes, Jorge C Escalante-Semerena
Alpha-ribazole (α-R) is a unique riboside found in the nucleotide loop of coenzyme B12 (CoB12 ). α-R is not an intermediate of the de novo biosynthetic pathway of coenzyme B12 , but some bacteria of the phylum Firmicutes have evolved a two-protein system (transporter, kinase) that scavenges α-R from the environment and converts it to the pathway intermediate α-RP. Since α-R is not commercially available, one must either synthesize α-R, or isolate it from hydrolysates of vitamin B12 (cyano-B12 , CNB12 ), so the function of the above-mentioned proteins can be studied...
May 16, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29783157/vaccines-and-the-association-with-relapses-in-patients-with-neuromyelitis-optica-spectrum-disorder
#13
Maureen A Mealy, Lawrence J Cook, Florence Pache, Diego L Velez, Nadja Borisow, Daniel Becker, Jorge A Jimenez Arango, Friedemann Paul, Michael Levy
BACKGROUND: It is unknown if vaccines cause non-specific immune activation in patients with neuromyelitis optica spectrum disorder and no consensus on the use of vaccines exists for this population. We investigated the temporal association of vaccinations with relapses in patients with neuromyelitis optica spectrum disorder. METHODS: This is a multi-center retrospective analysis of patients with neuromyelitis optica spectrum disorder for whom immunization history and clinical records from disease onset were available...
May 7, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29782967/deficient-mitochondrial-biogenesis-in-il-2-activated-nk-cells-correlates-with-impaired-pgc1-%C3%AE-upregulation-in-elderly-humans
#14
Dante Miranda, Claudia Jara, Sophia Mejias, Viviana Ahumada, Marcelo Cortez-San Martin, Jorge Ibañez, Sandra Hirsch, Margarita Montoya
Immunosenescence has been described as age-associated changes in the immune function which are thought to be responsible for the increased morbidity with age. Human Natural Killer (NK) cells are a specialized heterogeneous subpopulation of lymphocytes involved in immune defense against tumor and microbial diseases. Interestingly, aging-related NK cell dysfunction is associated with features of aging such as tumor incidence, reduced vaccination efficacy, and short survival due to infection. It is known that NK cell effector functions are critically dependent on cytokines and metabolic activity...
May 18, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29782701/tgf-%C3%AE-1-modified-hyaluronic-acid-poly-glycidol-hydrogels-for-chondrogenic-differentiation-of-human-mesenchymal-stromal-cells
#15
Thomas Böck, Verena Schill, Martin Krähnke, Andre F Steinert, Jörg Tessmar, Torsten Blunk, Jürgen Groll
In cartilage regeneration, the biomimetic functionalization of hydrogels with growth factors is a promising approach to improve the in vivo performance and furthermore the clinical potential of these materials. In order to achieve this without compromising network properties, multifunctional linear poly(glycidol) acrylate (PG-Acr) is synthesized and utilized as crosslinker for hydrogel formation with thiol-functionalized hyaluronic acid via Michael-type addition. As proof-of-principle for a bioactivation, transforming growth factor-beta 1 (TGF-β1) is covalently bound to PG-Acr via Traut's reagent which does not compromise the hydrogel gelation and swelling behavior...
May 21, 2018: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29782431/the-influence-of-3d-in-single-port-laparoscopy-surgery-an-experimental-study
#16
Jaime Vilaça, Mariana Leite, Jorge Correia-Pinto, Gerrit Högemann, Patrício Costa, Pedro Leão
The aim of this experimental study was to analyze the effect of 3-dimensional (3D) imaging in laparoendoscopic single-site surgery. End points were time, errors, and preference. Twenty-six participants were enrolled in the study, and these were divided into Beginners and Experts, in exercises either with a 2-dimensional or a 3D system. The 4 phantom exercises were chosen from the E-BLUS-European Training in Basic Laparoscopic Urological Skills from the American Fundamentals of Laparoscopic Surgery (FLS) system...
May 18, 2018: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/29782392/collagen-biomarkers-predict-new-onset-of-hypertension-in-normotensive-participants-the-multi-ethnic-study-of-atherosclerosis
#17
Daniel A Duprez, Myron D Gross, Joachim H Ix, Jorge R Kizer, Russell P Tracy, Steven Shea, David R Jacobs
OBJECTIVE: Vascular remodeling associated with increased extracellular matrix (ECM) may precede hypertension. Procollagen type III N-terminal propeptide (PIIINP) and collagen type I carboxy-terminal telopeptide (ICTP) reflect collagen turnover and are important in ECM remodeling. PIIINP and ICTP are increased in cardiovascular diseases (CVD). We hypothesized that PIIINP and ICTP among normotensives predict incident hypertension. METHODS: We included 1252 Multi-Ethnic Study of Atherosclerosis participants with mean age 58...
May 17, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29782224/efficacy-and-safety-of-dupilumab-in-glucocorticoid-dependent-severe-asthma
#18
Klaus F Rabe, Parameswaran Nair, Guy Brusselle, Jorge F Maspero, Mario Castro, Lawrence Sher, Hongjie Zhu, Jennifer D Hamilton, Brian N Swanson, Asif Khan, Jingdong Chao, Heribert Staudinger, Gianluca Pirozzi, Christian Antoni, Nikhil Amin, Marcella Ruddy, Bolanle Akinlade, Neil M H Graham, Neil Stahl, George D Yancopoulos, Ariel Teper
Background Dupilumab is a fully human anti-interleukin-4 receptor α monoclonal antibody that blocks both interleukin-4 and interleukin-13 signaling. Its effectiveness in reducing oral glucocorticoid use in patients with severe asthma while maintaining asthma control is unknown. Methods We randomly assigned 210 patients with oral glucocorticoid-treated asthma to receive add-on dupilumab (at a dose of 300 mg) or placebo every 2 weeks for 24 weeks. After a glucocorticoid dose-adjustment period before randomization, glucocorticoid doses were adjusted in a downward trend from week 4 to week 20 and then maintained at a stable dose for 4 weeks...
May 21, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29782217/dupilumab-efficacy-and-safety-in-moderate-to-severe-uncontrolled-asthma
#19
Mario Castro, Jonathan Corren, Ian D Pavord, Jorge Maspero, Sally Wenzel, Klaus F Rabe, William W Busse, Linda Ford, Lawrence Sher, J Mark FitzGerald, Constance Katelaris, Yuji Tohda, Bingzhi Zhang, Heribert Staudinger, Gianluca Pirozzi, Nikhil Amin, Marcella Ruddy, Bolanle Akinlade, Asif Khan, Jingdong Chao, Renata Martincova, Neil M H Graham, Jennifer D Hamilton, Brian N Swanson, Neil Stahl, George D Yancopoulos, Ariel Teper
Background Dupilumab is a fully human anti-interleukin-4 receptor α monoclonal antibody that blocks both interleukin-4 and interleukin-13 signaling. We assessed its efficacy and safety in patients with uncontrolled asthma. Methods We randomly assigned 1902 patients 12 years of age or older with uncontrolled asthma in a 2:2:1:1 ratio to receive add-on subcutaneous dupilumab at a dose of 200 or 300 mg every 2 weeks or matched-volume placebos for 52 weeks. The primary end points were the annualized rate of severe asthma exacerbations and the absolute change from baseline to week 12 in the forced expiratory volume in 1 second (FEV1 ) before bronchodilator use in the overall trial population...
May 21, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29782186/excessive-erythrocytosis-and-cardiovascular-risk-in-andean-highlanders
#20
Noemí Corante, Cecilia Anza-Ramírez, Rómulo Figueroa-Mujíca, José Luis Macarlupú, Gustavo Vizcardo-Galindo, Grzegorz Bilo, Gianfranco Parati, Jorge L Gamboa, Fabiola León-Velarde, Francisco C Villafuerte
Cardiovascular diseases are the main cause of death worldwide. Life under high-altitude (HA) hypoxic conditions is believed to provide highlanders with a natural protection against cardiovascular and metabolic diseases compared with sea-level inhabitants. However, some HA dwellers become intolerant to chronic hypoxia and develop a progressive incapacitating syndrome known as chronic mountain sickness (CMS), characterized by excessive erythrocytosis (EE; Hb ≥21 g/dL in men, Hb ≥19 g/dL in women). Evidence from HA studies suggests that, in addition to CMS typical signs and symptoms, these highlanders may also suffer from metabolic and cardiovascular disorders...
May 21, 2018: High Altitude Medicine & Biology
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