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https://www.readbyqxmd.com/read/28445723/mosquitoes-transmit-unique-west-nile-virus-populations-during-each-feeding-episode
#1
Nathan D Grubaugh, Joseph R Fauver, Claudia Rückert, James Weger-Lucarelli, Selene Garcia-Luna, Reyes A Murrieta, Alex Gendernalik, Darci R Smith, Doug E Brackney, Gregory D Ebel
Arthropod-borne viruses (arboviruses), such as Zika virus, chikungunya virus, and West Nile virus (WNV), pose continuous threats to emerge and cause large epidemics. Often, these events are associated with novel virus variants optimized for local transmission that first arise as minorities within a host. Thus, the conditions that regulate the frequency of intrahost variants are important determinants of emergence. Here, we describe the dynamics of WNV genetic diversity during its transmission cycle. By temporally sampling saliva from individual mosquitoes, we demonstrate that virus populations expectorated by mosquitoes are highly diverse and unique to each feeding episode...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28444007/prevalence-of-risk-factors-for-noncommunicable-diseases-in-an-indigenous-community-in-santiago-atitl%C3%A3-n-guatemala
#2
David Chen, Álvaro Rivera-Andrade, Jessica González, David Burt, Carlos Mendoza-Montano, James Patrie, Max Luna
Objective: To describe the prevalence of noncommunicable disease (NCD) risk factors and assess knowledge of those risk factors in the indigenous community of Santiago Atitlán in Guatemala, a lower-middle income country. Methods: A population-based, cross-sectional study was conducted using a modified version of the World Health Organization's STEPS protocol. Adults aged 20-65 years were surveyed regarding demographics and NCD risk factors, and the survey was followed by anthropometric and biochemical measurements...
April 20, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28441001/-mexican-asthma-guidelines-guima-2017
#3
Désirée Larenas-Linnemann, Jorge Salas-Hernández, Juan Carlos Vázquez-García, Ignacio Ortiz-Aldana, Margarita Fernández-Vega, Blanca Estela Del Río-Navarro, María Del Carmen Cano-Salas, Jorge Agustín Luna-Pech, José Antonio Ortega-Martell, Jade Romero-Lombard, Erika Del Carmen López-Estrada, Jimena Villaverde-Rosas, José Luis Mayorga-Butrón, Mario Humberto Vargas-Becerra, Martín Bedolla-Barajas, Noel Rodríguez-Pérez, Ambrocio Aguilar-Aranda, Carlos Adrián Jiménez-González, Carlos García-Bolaños, Claudia Garrido-Galindo, David Alejandro Mendoza-Hernández, Enrique Mendoza-López, Gerardo López-Pérez, Guillermo Hideo Wakida-Kuzonoki, Héctor Hernán Ruiz-Gutiérrez, Héctor León-Molina, Héctor Martínez-De la Lanza, Héctor Stone-Aguilar, Javier Gómez-Vera, Jorge Olvera-Salinas, José Joel Oyoqui-Flores, José Luis Gálvez-Romero, José Santos Lozano-Sáenz, Juan Ignacio Salgado-Gama, Marcos Alejandro Jiménez-Chobillon, Martha Angélica García-Avilés, Martha Patricia Guinto-Balanzar, Miguel Alejandro Medina-Ávalos, Robert Camargo-Angeles, Rogelio García-Torrentera, Saraí Toral-Freyre, Gabriel Montes-Narváez, Héctor Solorio-Gómez, Juan Rosas-Peña, Sergio Jesús Romero-Tapia, Adela Reyes-Herrera, Francisco Cuevas-Schacht, Joaquín Esquer-Flores, José Antonio Sacre-Hazouri, Lorenzo Compean-Martínez, Pablo Julián Medina-Sánchez, Sergio Garza-Salinas, Carlos Báez-Loyola, Iraís Romero-Alvarado, José Luis Miguel-Reyes, Laura Elizabeth Huerta-Espinosa, Manuel Ángel Correa-Flores, Ricardo Castro-Martínez
BACKGROUND: The need for a national guideline, with a broad basis among specialists and primary care physicians was felt in Mexico, to try unifying asthma management. As several high-quality asthma guidelines exist worldwide, it was decided to select the best three for transculturation. METHODS: Following the internationally recommended methodology for guideline transculturation, ADAPTE, a literature search for asthma guidelines, published 1-1-2007 through 31-12-2015 was conducted...
2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/28440098/early-diagnosis-of-amyotrophic-lateral-sclerosis-mimic-syndromes-pros-and-cons-of-current-clinical-diagnostic-criteria
#4
Elena Cortés-Vicente, Jesús Pradas, Juan Marín-Lahoz, Noemi De Luna, Jordi Clarimón, Janina Turon-Sans, Ellen Gelpí, Jordi Díaz-Manera, Isabel Illa, Ricard Rojas-Garcia
OBJECTIVE: To describe the frequency and clinical characteristics of patients referred to a tertiary neuromuscular clinic as having amyotrophic lateral sclerosis (ALS) but who were re-diagnosed as having an ALS mimic syndrome, and to identify the reasons that led to the revision of the diagnosis. METHODS: We reviewed the final diagnosis of all patients prospectively registered in the Sant Pau-MND register from 1 January 2004 to 31 December 2015. A detailed clinical evaluation and a clinically-guided electrophysiological study were performed at first evaluation...
April 25, 2017: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
https://www.readbyqxmd.com/read/28439280/insights-on-structure-and-function-of-a-late-embryogenesis-abundant-protein-from-amaranthus-cruentus-an-intrinsically-disordered-protein-involved-in-protection-against-desiccation-oxidant-conditions-and-osmotic-stress
#5
Alma L Saucedo, Eric E Hernández-Domínguez, Luis A de Luna-Valdez, Angel A Guevara-García, Abraham Escobedo-Moratilla, Esaú Bojorquéz-Velázquez, Federico Del Río-Portilla, Daniel A Fernández-Velasco, Ana P Barba de la Rosa
Late embryogenesis abundant (LEA) proteins are part of a large protein family that protect other proteins from aggregation due to desiccation or osmotic stresses. Recently, the Amaranthus cruentus seed proteome was characterized by 2D-PAGE and one highly accumulated protein spot was identified as a LEA protein and was named AcLEA. In this work, AcLEA cDNA was cloned into an expression vector and the recombinant protein was purified and characterized. AcLEA encodes a 172 amino acid polypeptide with a predicted molecular mass of 18...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28438336/distinct-cis-acting-regions-control-six6-expression-during-eye-field-and-optic-cup-stages-of-eye-formation
#6
Kelley L Ledford, Reyna I Martinez-De Luna, Matthew A Theisen, Karisa D Rawlins, Andrea S Viczian, Michael E Zuber
The eye field transcription factor, Six6, is essential for both the early (specification and proliferative growth) phase of eye formation, as well as for normal retinal progenitor cell differentiation. While genomic regions driving six6 optic cup expression have been described, the sequences controlling eye field and optic vesicle expression are unknown. Two evolutionary conserved regions 5' and a third 3' to the six6 coding region were identified, and together they faithfully replicate the endogenous X. laevis six6 expression pattern...
April 21, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28436235/the-effect-of-epidural-analgesia-alone-and-in-association-with-other-variables-on-the-risk-of-cesarean-section
#7
Antonio Herrera-Gómez, Elvira De Luna-Bertos, Javier Ramos-Torrecillas, Francisco Manuel Ocaña-Peinado, Olga García-Martínez, Concepción Ruiz
INTRODUCTION: Epidural analgesia (EA) is the most widespread pharmacologic method of labor pain relief. There remains disagreement, however, regarding its adverse effects. The objective of this study was to determine the effect of EA administration on the risk of cesarean delivery and its causes (e.g., stalled labor, risk of loss of fetal well-being, among others) and the degree to which this effect may be modulated by mother-, newborn-, and labor-related variables. METHOD: A retrospective cohort observational study was conducted including all deliveries in a Spanish public hospital between March 2010 and March 2013 ( N = 2,450; EA = 562, non-EA = 1,888)...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28433681/n-aryl-n-ethyleneaminothioureas-effectively-inhibit-acetylcholinesterase-1-from-disease-transmitting-mosquitoes
#8
Sofie Knutsson, Tomas Kindahl, Cecilia Engdahl, Dariush Nikjoo, Nina Forsgren, Stanley Kitur, Fredrik Ekström, Luna Kamau, Anna Linusson
Vector control of disease-transmitting mosquitoes by insecticides has a central role in reducing the number of parasitic- and viral infection cases. The currently used insecticides are efficient, but safety concerns and the development of insecticide-resistant mosquito strains warrant the search for alternative compound classes for vector control. Here, we have designed and synthesized thiourea-based compounds as non-covalent inhibitors of acetylcholinesterase 1 (AChE1) from the mosquitoes Anopheles gambiae (An...
March 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28432594/microrna-transfer-between-bone-marrow-adipose-and-multiple-myeloma-cells
#9
REVIEW
Luna Soley, Carolyne Falank, Michaela R Reagan
PURPOSE OF REVIEW: Multiple myeloma remains an incurable disease, largely due to the tumor-supportive role of the bone marrow microenvironment. Bone marrow adipose tissue (BMAT) is one component of the fertile microenvironment which is believed to contribute to myeloma progression and drug resistance, as well as participate in a vicious cycle of osteolysis and tumor growth. RECENT FINDINGS: MicroRNAs (miRNAs) have recently emerged as instrumental regulators of cellular processes that enable the development and dissemination of cancer...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28429938/high-resolution-accurate-mass-mass-spectrometry-enables-in-depth-characterization-of-in-vivo-biotransformations-for-intact-antibody-drug-conjugates
#10
Jintang He, Dian Su, Carl K Ng, Luna Liu, Shang-Fan Yu, Thomas H Pillow, Geoffrey Del Rosario, Martine Darwish, Byoung-Chul Lee, Rachana Ohri, Hongxiang Zhou, Xueji Wang, Jiawei Lu, Surinder Kaur, Keyang Xu
Antibody-drug conjugates (ADCs) represent a promising class of therapeutics for the targeted delivery of highly potent cytotoxic drugs to tumor cells to improve bioactivity while minimizing side effects. ADCs are composed of both small and large molecules, and therefore have complex molecular structures. In vivo biotransformations may further increase the complexity of ADCs, representing a unique challenge for bioanalytical assays. Quadrupole time-of-flight mass spectrometry (Q-TOF MS) with electrospray ionization has been widely used for characterization of intact ADCs...
April 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28429517/primary-laryngeal-sarcomas-in-a-mexican-population-case-series-of-eleven-cases
#11
Kuauhyama Luna-Ortiz, Sarina Navarro-Santiesteban, Veronica Villavicencio-Valencia, Rosa A Salcedo-Hernandez, Leonardo S Lino-Silva, Juan A Delgado
Sarcomas are mesenchymal tumors that represent 1% of malignant diseases in humans. Of these, 4-10% occur in the head and neck and only <1% occur in the larynx.(1) These groups of neoplasms have a wide range of histological variants and, accordingly, their clinical behavior varies widely, from slow-growing, relatively circumscribed tumors, to rapidly growing, locally invasive malignancies. In addition, the heterogeneity of the location of the laryngeal anatomic sub-sites require special therapeutic considerations...
April 21, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28428007/identification-and-characterization-of-two-rna-silencing-suppressors-encoded-by-ophioviruses
#12
Gabriel Robles Luna, Carina A Reyes, Eduardo J Peña, Eliana Ocolotobiche, Cecilia Baeza, Maria Belén Borniego, Richard Kormelink, María Laura García
Citrus psorosis virus and Mirafiori lettuce big-vein virus are two members of the genus Ophiovirus, family Ophioviridae. So far, how these viruses can interfere in the antiviral RNA silencing pathway is not known. In this study, using a local GFP silencing assay on Nicotiana benthamiana, the 24K-25K and the movement protein (MP) of both viruses were identified as RNA silencing suppressor proteins. Upon their co-expression with GFP in N. benthamiana 16c plants, the proteins also showed to suppress systemic RNA (GFP) silencing...
April 17, 2017: Virus Research
https://www.readbyqxmd.com/read/28426644/notes-from-the-field-varicella-fatality-on-a-cargo-vessel-puerto-rico-2015
#13
Misty Ellis, Carolina Luna-Pinto, Thomas George, Joanna J Regan, Mona Marin, Adriana Lopez, Brenda Rivera-Garcia, Kara Tardivel
No abstract text is available yet for this article.
April 21, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28425722/giant-electrostrictive-response-and-piezoresistivity-of-emulsion-templated-nanocomposites
#14
Alan Luna, Mickael Pruvost, Jinkai Yuan, Cécile Zakri, Wilfrid Neri, Cecile Monteux, Philippe Poulin, Annie Colin
Using an emulsion road and optimizing the dispersion process, we prepare polymer carbone nanotubes (CNT) and polymer reduced graphene oxyde (rGO) composites. The introduction of conductive nanoparticles into polymer matrices modifies the electronic properties of the material. We show that these materials exhibit giant electrostriction coefficient in the intermediate filler concentration (below 1wt %). This makes them very promising for applications including such as capacitive sensors and actuators. In addition, the values of the piezoresistivity measured in the high filler concentration situation, are at least an order of magnitude greater than the one reported in the literature...
April 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28424530/molecular-diagnostic-assays-based-on-cpn60-ut-sequences-reveal-the-geographic-distribution-of-subgroup-16srxiii-a-i-i-phytoplasma-in-mexico
#15
Edel Pérez-López, Douglas Rodríguez-Martínez, Chrystel Y Olivier, Mauricio Luna-Rodríguez, Tim J Dumonceaux
Geographically diverse samples from strawberry exhibiting symptoms of Strawberry Green Petal (SbGP), periwinkle plants with virescence, and blackberry, blueberry, and raspberry plants displaying yellowing and inedible fruits, were assayed for the presence of phytoplasma DNA. PCR targeting the 16S rRNA-encoding gene and chaperonin-60 (cpn60) showed that the plants were infected with phytoplasma subgroup16SrXIII-(A/I)I (SbGP/MPV). To examine the geographic distribution of this pathogen in Mexico, we designed an array of cpn60-targeted molecular diagnostic assays for SbGP/MPV phytoplasma...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424493/regulation-of-intraocular-pressure-by-microrna-cluster-mir-143-145
#16
Xinyu Li, Fangkun Zhao, Mei Xin, Guorong Li, Coralia Luna, Guigang Li, Qinbo Zhou, Yuguang He, Bo Yu, Eric Olson, Pedro Gonzalez, Shusheng Wang
Glaucoma is a major cause of irreversible blindness worldwide. Elevated intraocular pressure (IOP), which causes optic nerve damage and retinal ganglion cell death, is the primary risk factor for blindness in glaucoma patients. IOP is controlled by the balance between aqueous humor secretion from the ciliary body (CB) and its drainage through the trabecular meshwork (TM). How microRNAs (miRs) regulate IOP and glaucoma in vivo is largely unknown. Here we show that miR-143 and miR-145 expression is enriched in the smooth muscle and trabecular meshwork in the eye...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424313/reduction-in-activity-by-noxious-chemical-stimulation-is-ameliorated-by-immersion-in-analgesic-drugs-in-zebrafish
#17
Javier Lopez-Luna, Qussay Al-Jubouri, Waleed Al-Nuaimy, Lynne U Sneddon
Research has recently demonstrated that larval zebrafish show similar molecular responses to nociception to those of adults. Our study explored whether unprotected larval zebrafish exhibited altered behaviour after exposure to noxious chemicals and screened a range of analgesic drugs to determine their efficacy to reduce these responses. This approach aimed to validate larval zebrafish as a reliable replacement for adults as well as providing a high-throughput means of analysing behavioural responses. Zebrafish at 5 days post-fertilization were exposed to known noxious stimuli: acetic acid (0...
April 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28423516/the-addition-of-celecoxib-improves-the-antitumor-effect-of-cetuximab-in-colorectal-cancer-role-of-egfr-ras-foxm1-%C3%AE-catenin-signaling-axis
#18
Araceli Valverde, Jon Peñarando, Amanda Cañas, Laura M López-Sánchez, Francisco Conde, Silvia Guil-Luna, Vanessa Hernández, Carlos Villar, Cristina Morales-Estévez, Juan de la Haba-Rodríguez, Enrique Aranda, Antonio Rodríguez-Ariza
Here we showed that the addition of the COX-2 inhibitor celecoxib improved the antitumor efficacy in colorectal cancer (CRC) of the monoclonal anti-EGFR antibody cetuximab. The addition of celecoxib augmented the efficacy of cetuximab to inhibit cell proliferation and to induce apoptosis in CRC cells. Moreover, the combination of celecoxib and cetuximab was more effective than either treatment alone in reducing the tumor volume in a mouse xenograft model. The combined treatment enhanced the inhibition of EGFR signaling and altered the subcellular distribution of β-catenin...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423236/improvement-in-treatment-abandonment-in-pediatric-patients-with-cancer-in-guatemala
#19
Elysia Alvarez, Midori Seppa, Silvia Rivas, Lucia Fuentes, Patricia Valverde, Federico Antillón-Klussmann, Mauricio Castellanos, E Alejandro Sweet-Cordero, Kevin Messacar, John Kurap, Marisol Bustamante, Scott C Howard, Bradley Efron, Sandra Luna-Fineman
BACKGROUND: Treatment refusal and abandonment are major causes of treatment failure for children with cancer in low- and middle-income countries (LMICs), like Guatemala. This study identified risk factors for and described the intervention that decreased abandonment. METHODS: This was a retrospective study of Guatemalan children (0-18 years) with cancer treated at the Unidad Nacional de Oncología Pediátrica (UNOP), 2001-2008, using the Pediatric Oncology Network Database...
April 19, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28422567/evaluation-of-serotypes-5-and-8-capsular-polysaccharides-in-protection-against-staphylococcus-aureus-in-murine-models-of-infection
#20
Brian L Cheng, Travis B Nielsen, Paul Pantapalangkoor, Fan Zhao, Jean C Lee, Christopher P Montgomery, Brian Luna, Brad Spellberg, Robert S Daum
Staphylococcus aureus is the leading cause of nosocomial and community-acquired infections, including soft tissue and skin infections and bacteremia. However, efforts to develop an effective vaccine against S. aureus infections have not been successful. We evaluated serotypes 5 and 8 capsule polysaccharides (CP) CRM197 conjugates as vaccine candidates in murine models of bacteremia, lethal sepsis, and skin infection. The conjugate vaccines elicited a good antibody response, and active immunization of CP5-CRM or CP8-CRM conjugates protected against staphylococcal bacteremia...
April 19, 2017: Human Vaccines & Immunotherapeutics
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