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https://www.readbyqxmd.com/read/28548202/-what-can-the-provider-s-register-tell-us-about-physicians
#1
Karla Moscoso-Matus, Marco Cornejo-Ovalle, Mario Flores Ferretto
No abstract text is available yet for this article.
March 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28540662/methamidophos-an-organophosphorus-insecticide-induces-pro-aggressive-behaviour-in-mice
#2
Cristina Paula do Nascimento, Gabriella Xavier Maretto, Graziany Leite Moreira Marques, Luciana Mesquita Passamani, Ana Paula Abdala, Luiz Carlos Schenberg, Vanessa Beijamini, Karla Nívea Sampaio
Although evidence indicates that exposure to organophosphorus (OP) pesticides induces neurobehavioral disorders, little is known about the effects of OP on aggressive behaviour. Our study investigated the effects of repeated exposure to an OP pesticide, methamidophos, on the isolation-induced aggressive behaviour in mice. Forty seven male mice were individually housed for a month. Socially isolated animals were then confronted with a standard non-isolated opponent for 15 min (pre-treatment trial), and the latency and frequency of aggressive and general exploratory behaviours were recorded...
May 24, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28540408/-contaminants-from-food-packaging-new-developments-in-risk-assessment
#3
REVIEW
Karla Pfaff, Detlef Wölfle, Andreas Luch
Diverse materials intended for contact with food are important sources of food contamination. Harmonised European regulations including whitelists (so-called "positive lists") of substances along with migration limits and restrictions exist for plastics and regenerated cellulose films only. The European Food Safety Authority (EFSA) is responsible for the risk assessment of substances prior to their authorization and inclusion into the positive lists. In 2016 the EFSA issued an opinion on recent developments in the risk assessment of substances migrating into food for public consideration...
May 24, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28540197/decision-making-patterns-in-managing-children-with-suspected-biliary-dyskinesia
#4
Warapan Nakayuenyongsuk, Hassan Choudry, Karla Au Yeung, Wikrom Karnsakul
AIM: To explore and to analyze the patterns in decision-making by pediatric gastroenterologists in managing a child with a suspected diagnosis of functional gallbladder disorder (FGBD). METHODS: The questionnaire survey included a case history with right upper quadrant pain and was sent to pediatric gastroenterologists worldwide via an internet list server called the PEDGI Bulletin Board. RESULTS: Differences in decision-making among respondents in managing this case were observed at each level of investigations and management...
May 8, 2017: World Journal of Clinical Pediatrics
https://www.readbyqxmd.com/read/28538961/validation-of-the-intelligibility-in-context-scale-for-jamaican-creole-speaking-preschoolers
#5
Karla N Washington, Megan M McDonald, Sharynne McLeod, Kathryn Crowe, Hubert Devonish
Purpose: To describe validation of the Intelligibility in Context Scale (ICS; McLeod, Harrison, & McCormack, 2012a) and ICS-Jamaican Creole (ICS-JC; McLeod, Harrison, & McCormack, 2012b) in a sample of typically developing 3- to 6-year-old Jamaicans. Method: One-hundred and forty-five preschooler-parent dyads participated in the study. Parents completed the 7-item ICS (n = 145) and ICS-JC (n = 98) to rate children's speech intelligibility (5-point scale) across communication partners (parents, immediate family, extended family, friends, acquaintances, strangers)...
May 23, 2017: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/28538848/-chemoprotective-effect-of-the-alkaloid-extract-of-melocactus-bellavistensis-against-colon-cancer-induced-in-rats-using-1-2-dimethylhydrazine
#6
Karla Ríos-León, Cesar Fuertes-Ruiton, Jorge Arroyo, Julio Ruiz
Objectives: To determine the toxicity and chemoprotective effect of the alkaloid extract of Melocactus bellavistensis against colon cancer induced in rats using 1,2-dimethylhydrazine (DMH). Materials and methods: The alkaloid extract was obtained from the fleshy part of M. bellavistensis, and an acute toxicity test was then carried out on 30 mice of the Balb C57 strain. To assess its chemoprotective effect, colon cancer was induced in 45 Holtzman rats using DMH according to the following experimental design: one control group received 2 mL/kg sodium polysorbate, and four groups received 20 mg/kg DMH plus 0, 1, 5, or 10 mg/kg M...
January 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/28538814/maize-dry-matter-production-and-macronutrient-extraction-model-as-a-new-approach-for-fertilizer-rate-estimation
#7
Karla V Martins, Durval Dourado-Neto, Klaus Reichardt, José L Favarin, Felipe F Sartori, Guilherme Felisberto, Simone C Mello
Decision support for nutrient application remains an enigma if based on soil nutrient analysis. If the crop could be used as an auxiliary indicator, the plant nutrient status during different growth stages could complement the soil test, improving the fertilizer recommendation. Nutrient absorption and partitioning in the plant are here studied and described with mathematical models. The objective of this study considers the temporal variation of the nutrient uptake rate, which should define crop needs as compared to the critical content in soil solution...
May 22, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28538723/genomic-epidemiology-reveals-multiple-introductions-of-zika-virus-into-the-united-states
#8
Nathan D Grubaugh, Jason T Ladner, Moritz U G Kraemer, Gytis Dudas, Amanda L Tan, Karthik Gangavarapu, Michael R Wiley, Stephen White, Julien Thézé, Diogo M Magnani, Karla Prieto, Daniel Reyes, Andrea M Bingham, Lauren M Paul, Refugio Robles-Sikisaka, Glenn Oliveira, Darryl Pronty, Carolyn M Barcellona, Hayden C Metsky, Mary Lynn Baniecki, Kayla G Barnes, Bridget Chak, Catherine A Freije, Adrianne Gladden-Young, Andreas Gnirke, Cynthia Luo, Bronwyn MacInnis, Christian B Matranga, Daniel J Park, James Qu, Stephen F Schaffner, Christopher Tomkins-Tinch, Kendra L West, Sarah M Winnicki, Shirlee Wohl, Nathan L Yozwiak, Joshua Quick, Joseph R Fauver, Kamran Khan, Shannon E Brent, Robert C Reiner, Paola N Lichtenberger, Michael J Ricciardi, Varian K Bailey, David I Watkins, Marshall R Cone, Edgar W Kopp, Kelly N Hogan, Andrew C Cannons, Reynald Jean, Andrew J Monaghan, Robert F Garry, Nicholas J Loman, Nuno R Faria, Mario C Porcelli, Chalmers Vasquez, Elyse R Nagle, Derek A T Cummings, Danielle Stanek, Andrew Rambaut, Mariano Sanchez-Lockhart, Pardis C Sabeti, Leah D Gillis, Scott F Michael, Trevor Bedford, Oliver G Pybus, Sharon Isern, Gustavo Palacios, Kristian G Andersen
Zika virus (ZIKV) is causing an unprecedented epidemic linked to severe congenital abnormalities. In July 2016, mosquito-borne ZIKV transmission was reported in the continental United States; since then, hundreds of locally acquired infections have been reported in Florida. To gain insights into the timing, source, and likely route(s) of ZIKV introduction, we tracked the virus from its first detection in Florida by sequencing ZIKV genomes from infected patients and Aedes aegypti mosquitoes. We show that at least 4 introductions, but potentially as many as 40, contributed to the outbreak in Florida and that local transmission is likely to have started in the spring of 2016-several months before its initial detection...
May 24, 2017: Nature
https://www.readbyqxmd.com/read/28536962/trace-element-contents-in-fine-particulate-matter-pm2-5-in-urban-school-microenvironments-near-a-contaminated-beach-with-mine-tailings-cha%C3%A3-aral-chile
#9
Stephanie Mesías Monsalve, Leonardo Martínez, Karla Yohannessen Vásquez, Sergio Alvarado Orellana, José Klarián Vergara, Miguel Martín Mateo, Rogelio Costilla Salazar, Mauricio Fuentes Alburquenque, Dante D Cáceres Lillo
Air quality in schools is an important public health issue because children spend a considerable part of their daily life in classrooms. Particulate size and chemical composition has been associated with negative health effects. We studied levels of trace element concentrations in fine particulate matter (PM2.5) in indoor versus outdoor school settings from six schools in Chañaral, a coastal city with a beach severely polluted with mine tailings. Concentrations of trace elements were measured on two consecutive days during the summer and winter of 2012 and 2013 and determined using X-ray fluorescence...
May 23, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28536904/efficacy-of-photobiomodulation-therapy-on-masseter-thickness-and-oral-health-related-quality-of-life-in-children-with-spastic-cerebral-palsy
#10
Maria Teresa Botti Rodrigues Santos, Karla Santos Nascimento, Simone Carazzato, Alina Oliveira Barros, Fausto Medeiros Mendes, Michele Baffi Diniz
The study aimed to evaluate the efficacy of photobiomodulation therapy (PBMT) on bilateral masseter muscle thickness and amplitude of mouth opening in children with spastic cerebral palsy (CP), and the impact on their oral health-related quality of life (OHRQOL). Three groups were included: experimental CP group (EG: n = 26 with oral complaints), positive control CP group (PCG: n = 26 without complaints), and negative control group (NCG: n = 26 without CP). In the EG, the masseter muscles on both sides were irradiated with an infrared low-level Ga-Al-As laser (λ = 808 ± 3 nm, 120 mW) using a 3 J/cm(2) energy dose per site, with a 20 s exposure time per site (spot area: 4 mm(2); irradiance: 3 W/cm(2); energy delivery per point: 2...
May 23, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28536306/chronic-lymphocytic-leukemia-with-mutated-ighv4-34-receptors-shared-and-distinct-immunogenetic-features-and-clinical-outcomes
#11
Aliki Xochelli, Panagiotis Baliakas, Ioannis Kavakiotis, Andreas Agathangelidis, Lesley-Ann Sutton, Eva Minga, Stavroula Ntoufa, Eugen Tausch, Xiao-Jie Yan, Tait D Shanafelt, Karla Plevova, Myriam Boudjogra, Davide Rossi, Zadie Davis, Alba Navarro, Yorick Sandberg, Fie Juhl Vojdeman, Lydia Scarfò, Niki Stavroyianni, Andrey Sudarikov, Silvio Veronese, Tatiana Tzenou, Teodora Karan Djurasevic, Mark A Catherwood, Dirk Kienle, Maria Chatzouli, Monica Facco, Jasmin Bahlo, Christiane Pott, Lone Bredo Pedersen, Larry Mansouri, Karin E Smedby, Charles C Chu, Véronique Giudicelli, Marie-Paule Lefranc, Panagiotis Panagiotidis, Gunnar Juliusson, Achilles Anagnostopoulos, Ioannis Vlahavas, Darko Antic, Livio Trentin, Marco Montillo, Carsten U Niemann, Hartmut Dohner, Anton W Langerak, Sarka Pospisilova, Michael Hallek, Elias Campo, Nicholas- Chiorazzi, Nikos Maglaveras, David Oscier, Gianluca Gaidano, Diane F Jelinek, Stephan Stilgenbauer, Ioanna Chouvarda, Nikos Darzentas, Chrysoula Belessi, Frédéric Davi, Anastasia Hadzidimitriou, Richard Rosenquist, Paolo Ghia, Kostas Stamatopoulos
We sought to investigate if B cell receptor immunoglobulin (BcR IG) stereotypy is associated with particular clinicobiological features amongst chronic lymphocytic leukemia (CLL) patients expressing mutated BcR IG (M-CLL) encoded by the IGHV4-34 gene, and also ascertain whether these associations could refine prognostication.<br /> <p>Experimental Design: In a series of 19,907 CLL cases with available immunogenetic information, we identified 339 IGHV4-34 expressing cases assigned to one of the four largest stereotyped M-CLL subsets, namely subsets #4, #16, #29 and #201, and investigated in detail their clinicobiological characteristics and disease outcomes...
May 23, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28535042/dudawalamides-a-d-antiparasitic-cyclic-depsipeptides-from-the-marine-cyanobacterium-moorea-producens
#12
Jehad Almaliti, Karla L Malloy, Evgenia Glukhov, Carmenza Spadafora, Marcelino Gutiérrez, William H Gerwick
A family of 2,2-dimethyl-3-hydroxy-7-octynoic acid (Dhoya)-containing cyclic depsipeptides, named dudawalamides A-D (1-4), was isolated from a Papua New Guinean field collection of the cyanobacterium Moorea producens using bioassay-guided and spectroscopic approaches. The planar structures of dudawalamides A-D were determined by a combination of 1D and 2D NMR experiments and MS analysis, whereas the absolute configurations were determined by X-ray crystallography, modified Marfey's analysis, chiral-phase GCMS, and chiral-phase HPLC...
May 23, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28534494/airborne-observations-reveal-elevational-gradient-in-tropical-forest-isoprene-emissions
#13
Dasa Gu, Alex B Guenther, John E Shilling, Haofei Yu, Maoyi Huang, Chun Zhao, Qing Yang, Scot T Martin, Paulo Artaxo, Saewung Kim, Roger Seco, Trissevgeni Stavrakou, Karla M Longo, Julio Tóta, Rodrigo Augusto Ferreira de Souza, Oscar Vega, Ying Liu, Manish Shrivastava, Eliane G Alves, Fernando C Santos, Guoyong Leng, Zhiyuan Hu
Isoprene dominates global non-methane volatile organic compound emissions, and impacts tropospheric chemistry by influencing oxidants and aerosols. Isoprene emission rates vary over several orders of magnitude for different plants, and characterizing this immense biological chemodiversity is a challenge for estimating isoprene emission from tropical forests. Here we present the isoprene emission estimates from aircraft eddy covariance measurements over the Amazonian forest. We report isoprene emission rates that are three times higher than satellite top-down estimates and 35% higher than model predictions...
May 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28533226/igf1r-protein-expression-is-not-associated-with-differential-benefit-to-concurrent-trastuzumab-in-early-stage-her2-breast-cancer-from-the-north-central-cancer-treatment-group-alliance-adjuvant-trastuzumab-trial-n9831
#14
Monica M Reinholz, Beiyun Chen, Amylou C Dueck, Kathleen Tenner, Karla Ballman, Darren Riehle, Robert B Jenkins, Xochiquetzal J Geiger, Ann E McCullough, Edith A Perez
Background: Preclinical evidence indicates that increased insulin-like growth factor receptor-1 (IGF1R) signaling interferes with the action of trastuzumab suggesting a possible mechanism of trastuzumab resistance. Thus, we evaluated IGF1R prevalence, relationship with demographic data, and association with disease-free survival (DFS) of patients randomized to chemotherapy alone (Arm A) or chemotherapy with sequential (Arm B) or concurrent trastuzumab (Arm C) in the prospective phase III HER2(+) adjuvant N9831 trial...
May 22, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28532694/early-age-hepatocellular-carcinoma-associated-with-hepatitis-b-infection-in-south-america
#15
Aaron J Chan, Domingo Balderramo, Luciana Kikuchi, Esteban Gonzalez Ballerga, Jhon E Prieto, Monica Tapias, Victor Idrovo, Milagros B Davalos, Fernando Cairo, Fernando J Barreyro, Sebastian Paredes, Nelia Hernandez, Karla Avendaño, Javier Diaz Ferrer, Ju Dong Yang, Enrique Carrera, Angelo Z Mattos, Bruno S Hirsch, Pablo T Gonçalves, Flair J Carrilho, Lewis R Roberts, Jose D Debes
No abstract text is available yet for this article.
May 19, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28529876/pathology-of-callosal-damage-in-als-an-ex-vivo-7%C3%A2-t-diffusion-tensor-mri-study
#16
Agustin M Cardenas, Joelle E Sarlls, Justin Y Kwan, Devin Bageac, Zachary S Gala, Laura E Danielian, Abhik Ray-Chaudhury, Hao-Wei Wang, Karla L Miller, Sean Foxley, Saad Jbabdi, Robert C Welsh, Mary Kay Floeter
OBJECTIVES: The goal of this study was to better understand the changes in tissue microstructure that underlie white matter diffusion changes in ALS patients. METHODS: Diffusion tensor imaging was carried out in postmortem brains of 4 ALS patients and two subjects without neurological disease on a 7 T MRI scanner using steady-state free precession sequences. Fractional anisotropy (FA) was measured in the genu, body, and splenium of the corpus callosum in formalin-fixed hemispheres...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28528863/cross-linking-of-a-biopolymer-peptide-co-assembling-system
#17
Karla E Inostroza-Brito, Estelle C Collin, Anna Poliniewicz, Sherif Elsharkawy, Alistair Rice, Armando E Del Río Hernández, Xin Xiao, José Rodríguez-Cabello, Alvaro Mata
The ability to guide molecular self-assembly at the nanoscale into complex macroscopic structures could enable the development of functional synthetic materials that exhibit properties of natural tissues such as hierarchy, adaptability, and self-healing. However, the stability and structural integrity of these kinds of materials remains a challenge for many practical applications. We have recently developed a dynamic biopolymer-peptide co-assembly system with the capacity to grow and undergo morphogenesis into complex shapes...
May 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28527255/-oral-mucosa-analog-allografts-in-non-consanguineous-rats
#18
Luis González, Karla Padrón, Siham Salmen, Elsy Jerez, Lorena Dávila, Eduvigis Solórzano
INTRODUCTION: Although there are therapeutic options for the treatment of oral mucosa defects, the need for functional, anatomical and aesthetically similar substitutes persists, as well as for solutions to reduce autologous grafts morbidity. OBJECTIVE: To determine clinical and histological compatibility of equivalent oral mucosa allografts generated through tissue engineering in non-consanguineous rats. MATERIALS AND METHODS: We used a sample of oral mucosa from Sprague Dawley rats to obtain a fibroblast culture and a keratinocytes and fibroblasts co-culture...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28525545/gene-co-expression-network-analysis-for-identifying-modules-and-functionally-enriched-pathways-in-sca2
#19
Lance T Pflieger, Warunee Dansithong, Sharan Paul, Daniel Scoles, Karla P Figueroa, Pratap Meera, Thomas S Otis, Julio C Facelli, Stefan M Pulst
Spinocerebellar ataxia type 2 (SCA2) is an autosomal dominant neurodegenerative disease caused by CAG repeat expansion in the ATXN2 gene. The repeat resides in an encoded region of the gene resulting in polyglutamine (polyQ) expansion which has been assumed to result in gain of function, predominantly, for the ATXN2 protein. We evaluated temporal cerebellar expression profiles by RNA sequencing of ATXN2Q127 mice vs wildtype littermates. ATXN2Q127 mice are characterized by a progressive motor phenotype onset, and have progressive cerebellar molecular and neurophysiological (Purkinje cell firing frequency) phenotypes...
May 19, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28524870/autotrophic-and-heterotrophic-acquisition-of-carbon-and-nitrogen-by-a-mixotrophic-chrysophyte-established-through-stable-isotope-analysis
#20
Ramon Terrado, Alexis L Pasulka, Alle A-Y Lie, Victoria J Orphan, Karla B Heidelberg, David A Caron
Collectively, phagotrophic algae (mixotrophs) form a functional continuum of nutritional modes between autotrophy and heterotrophy, but the specific physiological benefits of mixotrophic nutrition differ among taxa. Ochromonas spp. are ubiquitous chrysophytes that exhibit high nutritional flexibility, although most species generally fall towards the heterotrophic end of the mixotrophy spectrum. We assessed the sources of carbon and nitrogen in Ochromonas sp. strain BG-1 growing mixotrophically via short-term stable isotope probing...
May 19, 2017: ISME Journal
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