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https://www.readbyqxmd.com/read/28436646/filaments-with-affinity-binding-and-wet-strength-can-be-achieved-by-spinning-bifunctional-cellulose-nanofibrils
#1
Maija Vuoriluoto, Hannes Orelma, Meri Johanna Lundahl, Maryam Borghei, Orlando J Rojas
We demonstrate benzophenone (BP) conjugation via amine-reactive esters onto oxidized cellulosic fibers that were used as precursors, after microfluidization, of photo-active cellulose nanofibrils (CNF). From these fibrils, cellulose I filaments were synthesized by hydrogel spinning in an anti-solvent followed by fast bi-radical UV crosslinking. As a result, the BP-CNF filaments developed a wet tensile strength of up to ~105 MPa (a remarkable retention of ~80% of the dry strength). Thus, the principal limitation of these emerging materials was resolved (< 0...
April 24, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28432641/dentatorubro-pallidoluysian-atrophy-drpla-among-700-families-with-ataxia-in-brazil
#2
Pedro Braga-Neto, José Luiz Pedroso, Gabriel Vasata Furtado, Tailise Conte Gheno, Maria Luiza Saraiva-Pereira, Laura Bannach Jardim, Orlando G P Barsottini
Dentatorubro-pallidoluysian atrophy (DRPLA) is a spinocerebellar ataxia (SCA) very rare in non-Asian populations. To date, DRPLA was undetected in the general Brazilian population. Adult-onset ataxic patients have been recruited from several Brazilian neurology and neurogenetics centers. CAG lengths at SCA1, SCA2, SCA3/MJD, SCA6, SCA7, SCA12, SCA17 and DRPLA associated genes, and ATTCT expansions at SCA10 gene were studied. A single DRPLA case detected is reported. Proband was a 69-year-old Brazilian woman of mixed ancestry, with a late-onset pure ataxia: her alleles at the associated gene, ATN1, presented 14/52 CAG repeats...
April 21, 2017: Cerebellum
https://www.readbyqxmd.com/read/28427103/saffron-flower-extract-promotes-scratch-wound-closure-of-keratinocytes-and-enhances-vegf-production
#3
Sheela Verjee, Eliane Garo, Sarah Pelaez, Orlando Fertig, Matthias Hamburger, Veronika Butterweck
During saffron (Crocus sativus) spice production, large amounts of floral biowaste are generated. It was the aim of this study to develop a value-added product from saffron floral biowaste to be used as a natural cosmetic ingredient. HPLC-PDA-MS analysis of saffron flower extracts revealed the presence of flavonols with the highest amounts in the acetone extract. Kaempferol-3-O-sophoroside was identified as the main flavonoid in the acetone extract (saffron flower acetone extract). Saffron flower acetone extract and kaempferol-3-O-sophoroside were tested in HaCaT cells for potential effects on cell migration, proliferation, and for anti-inflammatory properties...
April 20, 2017: Planta Medica
https://www.readbyqxmd.com/read/28424354/less-effective-selection-leads-to-larger-genomes
#4
Tristan Lefébure, Claire Morvan, Florian Malard, Clémentine François, Lara Konecny-Dupré, Laurent Guéguen, Michèle Weiss-Gayet, Andaine Seguin-Orlando, Luca Ermini, Clio Der Sarkissian, N Pierre Charrier, David Eme, Florian Mermillod-Blondin, Laurent Duret, Cristina Vieira, Ludovic Orlando, Christophe Douady
The evolutionary origin of the striking genome size variations found in eukaryotes remains enigmatic. The effective size of populations, by controlling selection efficacy, is expected to be a key parameter underlying genome size evolution. However, this hypothesis has proved difficult to investigate using empirical datasets. Here, we tested this hypothesis using twenty-two de novo transcriptomes and low-coverage genomes of asellid isopods, which represent eleven independent habitat shifts from surface water to resource-poor groundwater...
April 19, 2017: Genome Research
https://www.readbyqxmd.com/read/28421746/multifunctional-enzymatically-generated-hydrogels-for-chronic-wound-application
#5
Ivaylo Stefanov, Sílvia Pérez-Rafael, Javier Hoyo, Jonathan Cailloux, Orlando O Santana Perez, Dolores Hinojosa-Caballero, Tzanko Tzanov
The healing of chronic wounds requires intensive medical intervention at huge healthcare costs. Dressing materials should consider the multifactorial nature of these wounds comprising deleterious proteolytic and oxidative enzymes, and high bacterial load. In this work, multifunctional hydrogels for chronic wound application were produced by enzymatic crosslinking of thiolated chitosan and gallic acid. The hydrogels combine several beneficial to wound healing properties, controlling the matrix metalloproteinases (MMPs) and myeloperoxidase (MPO) activities, oxidative stress and bacterial contamination...
April 19, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28420130/gaseous-elemental-mercury-and-total-and-leached-mercury-in-building-materials-from-the-former-hg-mining-area-of-abbadia-san-salvatore-central-italy
#6
Orlando Vaselli, Barbara Nisi, Daniele Rappuoli, Jacopo Cabassi, Franco Tassi
Mercury has a strong environmental impact since both its organic and inorganic forms are toxic, and it represents a pollutant of global concern. Liquid Hg is highly volatile and can be released during natural and anthropogenic processes in the hydrosphere, biosphere and atmosphere. In this study, the distribution of Gaseous Elemental Mercury (GEM) and the total and leached mercury concentrations on paint, plaster, roof tiles, concrete, metals, dust and wood structures were determined in the main buildings and structures of the former Hg-mining area of Abbadia San Salvatore (Siena, Central Italy)...
April 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28419115/properties-of-the-cuticular-proteins-of-anopheles-gambiae-as-revealed-by-serial-extraction-of-adults
#7
Yihong Zhou, Majors J Badgett, Lynne Billard, John Hunter Bowen, Ron Orlando, Judith H Willis
How cuticular proteins (CPs) interact with chitin and with each other in the cuticle remains unresolved. We employed LC-MS/MS to identify CPs from 5-6 day-old adults of Anopheles gambiae released after serial extraction with PBS, EDTA, 2-8M urea, and SDS as well as those that remained unextracted. Results were compared to published data on time of transcript abundance, localization of proteins within structures and within the cuticle, as well as properties of individual proteins, length, pI, percent histidine, tyrosine, glutamine, and number of AAP[A/V/L] repeats...
2017: PloS One
https://www.readbyqxmd.com/read/28418820/case-241-hemiparkinsonism-hemiatrophy-spect-with-99m-tc-trodat-1-and-muscle-mr-imaging-abnormalities
#8
Thiago Cardoso Vale, Flávia Cristina de Lima Pinto, José Luiz Pedroso, Marília Alves Dos Reis, Ilza Rosa Batista, Rodrigo Affonseca Bressan, René Leandro Magalhães Rivero, Renato Adam Mendonça, Orlando G Barsottini
History A 43-year-old right-handed man presented with a history of progressive mild left-sided weakness and slowness of movements. Symptoms began 4 years earlier, and the patient noticed a progressive decline in his daily routine due to gait difficulties in the past year. There was no history of head trauma, surgery, drug therapy, smoking, or alcohol abuse, nor was there any relevant family history. Examination revealed normal cognition (29 of 30 points on the Mini-Mental State Examination and 27 of 30 points on the Montreal Cognitive Assessment) and normal cerebellar, sensory, cranial nerve, and autonomic function...
May 2017: Radiology
https://www.readbyqxmd.com/read/28415322/thermal-rectification-in-mass-graded-next-nearest-neighbor-fermi-pasta-ulam-lattices
#9
M Romero-Bastida, Jorge-Orlando Miranda-Peña, Juan M López
We study the thermal rectification efficiency, i.e., quantification of asymmetric heat flow, of a one-dimensional mass-graded anharmonic oscillator Fermi-Pasta-Ulam lattice both with nearest-neighbor (NN) and next-nearest-neighbor (NNN) interactions. The system presents a maximum rectification efficiency for a very precise value of the parameter that controls the coupling strength of the NNN interactions, which also optimizes the rectification figure when its dependence on mass asymmetry and temperature differences is considered...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28412836/reducing-time-to-internal-medicine-consultation-in-the-ed-of-a-community-based-hospital-a-commentary-on-a-quality-improvement-initiative
#10
Melissa Di Santo, Elaina Orlando, Madelyn P Law
No abstract text is available yet for this article.
April 1, 2017: American Journal of Medical Quality: the Official Journal of the American College of Medical Quality
https://www.readbyqxmd.com/read/28410438/effect-of-lipoxygenase-oxidation-on-surface-deposition-of-unsaturated-fatty-acids
#11
Ali H Tayeb, Martin Allen Hubbe, Yanxia Zhang, Orlando J Rojas
We studied the interactions of lipid molecules (linoleic acid, glycerol trilinoleate and a complex mixture of wood extractives) with hydrophilic and hydrophobic surfaces (cellulose nanofibrils, CNF, and polyethylene terephthalate, PET, respectively). The effect of lipoxygenase treatment to minimize the affinity of the lipids with the given surface was considered. Application of an electroacoustic sensing technique (QCM) allowed the monitoring of the kinetics of oxidation as well as dynamics of lipid deposition on CNF and PET...
April 14, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28408715/postoperative-infection-in-developing-world-congenital-heart-surgery-programs-data-from-the-international-quality-improvement-collaborative
#12
Amitabh Chanchal Sen, Debra Forbes Morrow, Rakhi Balachandran, Xinwei Du, Kimberlee Gauvreau, Byalal R Jagannath, Raman Krishna Kumar, Jennifer Koch Kupiec, Monica L Melgar, Nguyen Tran Chau, Gail Potter-Bynoe, Orlando Tamariz-Cruz, Kathy J Jenkins
BACKGROUND: Postoperative infections contribute substantially to morbidity and mortality after congenital heart disease surgery and are often preventable. We sought to identify risk factors for postoperative infection and the impact on outcomes after congenital heart surgery, using data from the International Quality Improvement Collaborative for Congenital Heart Surgery in Developing World Countries. METHODS AND RESULTS: Pediatric cardiac surgical cases performed between 2010 and 2012 at 27 participating sites in 16 developing countries were included...
April 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28408440/global-cardiovascular-and-renal-outcomes-of-reduced-gfr
#13
Bernadette Thomas, Kunihiro Matsushita, Kalkidan Hassen Abate, Ziyad Al-Aly, Johan Ärnlöv, Kei Asayama, Robert Atkins, Alaa Badawi, Shoshana H Ballew, Amitava Banerjee, Lars Barregård, Elizabeth Barrett-Connor, Sanjay Basu, Aminu K Bello, Isabela Bensenor, Jaclyn Bergstrom, Boris Bikbov, Christopher Blosser, Hermann Brenner, Juan-Jesus Carrero, Steve Chadban, Massimo Cirillo, Monica Cortinovis, Karen Courville, Lalit Dandona, Rakhi Dandona, Kara Estep, João Fernandes, Florian Fischer, Caroline Fox, Ron T Gansevoort, Philimon N Gona, Orlando M Gutierrez, Samer Hamidi, Sarah Wulf Hanson, Jonathan Himmelfarb, Simerjot K Jassal, Sun Ha Jee, Vivekanand Jha, Aida Jimenez-Corona, Jost B Jonas, Andre Pascal Kengne, Yousef Khader, Young-Ho Khang, Yun Jin Kim, Barbara Klein, Ronald Klein, Yoshihiro Kokubo, Dhaval Kolte, Kristine Lee, Andrew S Levey, Yongmei Li, Paulo Lotufo, Hassan Magdy Abd El Razek, Walter Mendoza, Hirohito Metoki, Yejin Mok, Isao Muraki, Paul M Muntner, Hiroyuki Noda, Takayoshi Ohkubo, Alberto Ortiz, Norberto Perico, Kevan Polkinghorne, Rajaa Al-Radaddi, Giuseppe Remuzzi, Gregory Roth, Dietrich Rothenbacher, Michihiro Satoh, Kai-Uwe Saum, Monika Sawhney, Ben Schöttker, Anoop Shankar, Michael Shlipak, Diego Augusto Santos Silva, Hideaki Toyoshima, Kingsley Ukwaja, Mitsumasa Umesawa, Stein Emil Vollset, David G Warnock, Andrea Werdecker, Kazumasa Yamagishi, Yuichiro Yano, Naohiro Yonemoto, Maysaa El Sayed Zaki, Mohsen Naghavi, Mohammad H Forouzanfar, Christopher J L Murray, Josef Coresh, Theo Vos
The burden of premature death and health loss from ESRD is well described. Less is known regarding the burden of cardiovascular disease attributable to reduced GFR. We estimated the prevalence of reduced GFR categories 3, 4, and 5 (not on RRT) for 188 countries at six time points from 1990 to 2013. Relative risks of cardiovascular outcomes by three categories of reduced GFR were calculated by pooled random effects meta-analysis. Results are presented as deaths for outcomes of cardiovascular disease and ESRD and as disability-adjusted life years for outcomes of cardiovascular disease, GFR categories 3, 4, and 5, and ESRD...
April 13, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28407648/international-sexual-partnerships-may-be-shaped-by-sexual-histories-and-socioeconomic-status
#14
Hong-Ha M Truong, Megha Mehrotra, Orlando Montoya, Javier R Lama, Juan V Guanira, Martín Casapía, Valdiléa G Veloso, Susan P Buchbinder, Kenneth H Mayer, Suwat Chariyalertsak, Mauro Schechter, Linda-Gail Bekker, Esper G Kallás, Robert M Grant
Exchange sex and higher education were associated with an increased likelihood of international sexual partnerships (ISPs). Exchange sex and older age were associated with an increased likelihood of condomless sex in ISPs. Educational and socioeconomic factors may create unbalanced power dynamics that influence exchange sex and condomless sex in ISPs.
May 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28406488/making-genomic-medicine-evidence-based-and-patient-centered-a-structured-review-and-landscape-analysis-of-comparative-effectiveness-research
#15
REVIEW
Kathryn A Phillips, Patricia A Deverka, Harold C Sox, Muin J Khoury, Lewis G Sandy, Geoffrey S Ginsburg, Sean R Tunis, Lori A Orlando, Michael P Douglas
Comparative effectiveness research (CER) in genomic medicine (GM) measures the clinical utility of using genomic information to guide clinical care in comparison to appropriate alternatives. We summarized findings of high-quality systematic reviews that compared the analytic and clinical validity and clinical utility of GM tests. We focused on clinical utility findings to summarize CER-derived evidence about GM and identify evidence gaps and future research needs. We abstracted key elements of study design, GM interventions, results, and study quality ratings from 21 systematic reviews published in 2010 through 2015...
April 13, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28405922/new-semi-pilot-scale-reactor-to-study-the-photocatalytic-inactivation-of-phages-contained-in-aerosol
#16
Mariángeles Briggiler Marcó, Antonio Carlos Negro, Orlando Mario Alfano, Andrea Del Luján Quiberoni
The aims of this work were to design and build a photocatalytic reactor (UV-A/TiO2) to study the inactivation of phages contained in bioaerosols, which constitute the main dissemination via phages in industrial environments. The reactor is a close system with recirculation that consists of a stainless steel camera (cubic form, side of 60 cm) in which air containing the phage particles circulates and an acrylic compartment with six borosilicate plates covered with TiO2. The reactor is externally illuminated by 20 UV-A lamps...
April 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28401767/expanded-target-chemical-analysis-reveals-extensive-mixed-organic-contaminant-exposure-in-u-s-streams
#17
Paul M Bradley, Celeste A Journey, Kristin M Romanok, Larry B Barber, Herbert T Buxton, William T Foreman, Edward T Furlong, Susan T Glassmeyer, Michelle L Hladik, Luke R Iwanowicz, Daniel K Jones, Dana W Kolpin, Kathryn M Kuivila, Keith A Loftin, Marc A Mills, Michael T Meyer, James L Orlando, Timothy J Reilly, Kelly L Smalling, Daniel L Villeneuve
Surface water from 38 streams nationwide was assessed using 14 target-organic methods (719 compounds). Designed-bioactive anthropogenic contaminants (biocides, pharmaceuticals) comprised 57% of 406 organics detected at least once. The 10 most-frequently detected anthropogenic-organics included eight pesticides (desulfinylfipronil, AMPA, chlorpyrifos, dieldrin, metolachlor, atrazine, CIAT, glyphosate) and two pharmaceuticals (caffeine, metformin) with detection frequencies ranging 66-84% of all sites. Detected contaminant concentrations varied from less than 1 ng L(-1) to greater than 10 μg L(-1), with 77 and 278 having median detected concentrations greater than 100 ng L(-1) and 10 ng L(-1), respectively...
April 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28401624/unexpected-population-response-to-increasing-temperature-in-the-context-of-a-strong-species-interaction
#18
Jeffrey D White, Orlando Sarnelle, Stephen K Hamilton
Climate change is driving large changes in the spatial and temporal distributions of species, with significant consequences for individual populations. Community- and ecosystem-level implications of altered species distributions may be complex and challenging to anticipate due to the cascading effects of disrupted interactions among species, which may exhibit threshold responses to extreme climatic events. Toxic, bloom-forming cyanobacteria like Microcystis are expected to increase worldwide with climate change, due in part to their high temperature optima for growth...
April 12, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28400899/how-a-ct-direct-protocol-at-an-american-comprehensive-stroke-center-led-to-door-to-needle-times-less-than-30-minutes
#19
Lisa M Caputo, Judd Jensen, Michelle Whaley, Mark J Kozlowski, Christopher V Fanale, Jeffrey C Wagner, Alessandro Orlando, David Bar-Or
BACKGROUND AND PURPOSE: The safety and efficacy of intravenous tissue plasminogen activator (IV tPA) following acute ischemic stroke (AIS) is dependent on its timely administration. In 2014, our Comprehensive Stroke Center designed and implemented a computed tomography-Direct protocol to streamline the evaluation process of suspected patients with AIS, with the aim of reducing door-to-needle (DTN) times. The objectives of our study were to describe the protocol development and implementation process, and to compare DTN times and symptomatic intracranial hemorrhage (sICH) rates before and after protocol implementation...
April 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28400241/highlights-from-the-30th-north-american-cystic-fibrosis-conference-orlando-2016
#20
REVIEW
Anna Shawcross, Peter J Barry
This is a selection of papers presented at the 30th North American Cystic Fibrosis Conference held in Orlando in October 2016. The papers discussed are thought to be of particular interest to CF caregivers in the UK. We highlight the major themes covered in the conference including novel therapies, recently published and proposed guidelines and insights from registry studies.
March 14, 2017: Paediatric Respiratory Reviews
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