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https://www.readbyqxmd.com/read/28346361/specificity-in-legume-rhizobia-symbioses
#1
REVIEW
Mitchell Andrews, Morag E Andrews
Most species in the Leguminosae (legume family) can fix atmospheric nitrogen (N₂) via symbiotic bacteria (rhizobia) in root nodules. Here, the literature on legume-rhizobia symbioses in field soils was reviewed and genotypically characterised rhizobia related to the taxonomy of the legumes from which they were isolated. The Leguminosae was divided into three sub-families, the Caesalpinioideae, Mimosoideae and Papilionoideae. Bradyrhizobium spp. were the exclusive rhizobial symbionts of species in the Caesalpinioideae, but data are limited...
March 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28345441/prevalence-and-cost-of-subsequent-fractures-among-u-s-patients-with-an-incident-fracture
#2
Jessica Weaver, Shiva Sajjan, E Michael Lewiecki, Steven T Harris, Panagiotis Marvos
BACKGROUND: The prevalence and cost of subsequent fractures among patients with an incident fracture are not well defined. OBJECTIVE: To assess the prevalence of, and costs associated with, subsequent fractures in the year after an incident fracture. METHODS: This was a retrospective claims database analysis using data from Humana Medicare Advantage claims (Medicare group) and Optum Insight Clinformatics Data Mart commercial claims (commercial group)...
April 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28344900/temporal-patterns-and-geographic-heterogeneity-of-zika-virus-zikv-outbreaks-in-french-polynesia-and-central-america
#3
Ying-Hen Hsieh
BACKGROUND: Zika virus (ZIKV) transmission has been reported in 67 countries/territories in the Oceania region and the Americas since 2015, prompting the World Health Organization (WHO) to declare ZIKV as a Public Health Emergency of International Concern in February 2016, due to its strong association with medical complications such as microcephaly and Guillain-Barré Syndrome (GBS). However, a substantial gap in knowledge still exists regarding differing temporal pattern and potential of transmission of ZIKV in different regions of the world...
2017: PeerJ
https://www.readbyqxmd.com/read/28343902/stepwise-strategies-to-successfully-recruit-diabetes-patients-in-a-large-research-study-in-mexican-population
#4
Niels H Wacher, Mario Reyes-Sánchez, Héctor Raúl Vargas-Sánchez, Mireya Gamiochipi-Cano, Ramón Alberto Rascón-Pacheco, Rita A Gómez-Díaz, Svetlana V Doubova, Adán Valladares-Salgado, Martha Catalina Sánchez-Becerra, Araceli Méndez-Padrón, Leticia A Valdez-González, Rafael Mondragón-González, Miguel Cruz, Ana María Salinas-Martinez, María Guadalupe Garza-Sagástegui, Jaime Hernández-Rubí, Arturo González-Hermosillo, Víctor H Borja-Aburto
AIMS: Describe stepwise strategies (electronic chart review, patient preselection, call-center, personnel dedicated to recruitment) for the successful recruitment of >5000 type 2 diabetes patients in four months. METHODS: Twenty-five family medicine clinics from Mexico City and the State of Mexico participated: 13 usual care, 6 specialized diabetes care and 6 chronic disease care. Appointments were scheduled from 11/3/2015 to 3/31/2016. Phone calls were generated automatically from an electronic database...
March 23, 2017: Primary Care Diabetes
https://www.readbyqxmd.com/read/28343714/sensitivity-of-eastern-oyster-crassostrea-virginica-spermatozoa-and-oocytes-to-dispersed-oil-cellular-responses-and-impacts-on-fertilization-and-embryogenesis
#5
J Vignier, A K Volety, A Rolton, N Le Goïc, F-L E Chu, R Robert, P Soudant
The 2010 Deepwater Horizon (DWH) oil spill released millions of barrels of oil and dispersant into the Gulf of Mexico. The timing of the spill coincided with the spawning season of Crassostrea virginica. Consequently, gametes released in the water were likely exposed to oil and dispersant. This study aimed to (i) evaluate the cellular effects of acute exposure of spermatozoa and oocytes to surface slick oil, dispersed mechanically (HEWAF) and chemically (CEWAF), using flow-cytometric (FCM) analyses, and (ii) determine whether the observed cellular effects relate to impairments of fertilization and embryogenesis of gametes exposed to the same concentrations of CEWAF and HEWAF...
March 23, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28343318/prevalence-of-thyroid-dysfunction-and-its-impact-on-cognition-in-older-mexican-adults-sadem-study
#6
T Juárez-Cedillo, L Basurto-Acevedo, S Vega-García, A Sánchez-Rodríguez Martha, R Retana-Ugalde, E Juárez-Cedillo, C Gonzalez-Melendez Roberto, J Escobedo-de-la-Peña
INTRODUCTION: Subclinical thyroid dysfunction is a possible risk factor for cognitive impairment in old age, but results are inconsistent. Aim of the present study was to evaluate the prevalence of thyroid dysfunction among older community-dwelling adults and to see whether thyroid function impacts the cognitive status of the elderly. METHODS: We included 1750 participants from the Study on Aging and Dementia in Mexico (SADEM). All subjects were evaluated clinically via specific interviews...
March 25, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28342593/taxocoenosis-of-epibenthic-dinoflagellates-in-the-coastal-waters-of-the-northern-yucatan-peninsula-before-and-after-the-harmful-algal-bloom-event-in-2011-2012
#7
Ana C Aguilar-Trujillo, Yuri B Okolodkov, Jorge A Herrera-Silveira, Fany Del C Merino-Virgilio, Citlalli Galicia-García
Eutrophication causes the major impact in the coastal waters of the state of Yucatan. In general, loss of water quality and biological communities and massive development of toxic microorganisms are some of the consequences of this phenomenon. To reveal changes in species composition and cell abundance of the taxocoenosis of epibenthic dinoflagellates before and after a harmful algal bloom event in the water column that lasted about 150days (August-December 2011) in the Dzilam - San Crisanto area (northern Yucatan Peninsula, southeastern Gulf of Mexico) were the main objectives of the present study...
March 22, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28341024/-biochemical-basis-of-tolerance-to-osmotic-stress-in-phytopathogenic-fungus-the-case-of-macrophomina-phaseolina-tassi-goid
#8
Rodolfo Martínez-Villarreal, Tamar S Garza-Romero, Víctor R Moreno-Medina, Sanjuana Hernández-Delgado, Netzahualcoyotl Mayek-Pérez
Fungus Macrophomina phaseolina (Tassi) Goid. is the causative agent of charcoal rot disease which causes significant yield losses in major crops such as maize, sorghum, soybean and common beans in Mexico. This fungus is a facultative parasite which shows broad ability to adapt itself to stressed environments where water deficits and/or high temperature stresses commonly occur. These environmental conditions are common for most cultivable lands throughout Mexico. Here we describe some basic facts related to the etiology and epidemiology of the fungus as well as to the importance of responses to stressed environments, particularly to water deficits, based on morphology and growth traits, as well as on physiology, biochemistry and pathogenicity of fungus M...
October 2016: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28340462/assessment-of-arsenic-and-fluorine-in-surface-soil-to-determine-environmental-and-health-risk-factors-in-the-comarca-lagunera-mexico
#9
Yareli A Sariñana-Ruiz, Jorge Vazquez-Arenas, Fabiola S Sosa-Rodríguez, Israel Labastida, Ma Aurora Armienta, Antonio Aragón-Piña, Miguel A Escobedo-Bretado, Laura S González-Valdez, Patricia Ponce-Peña, Hugo Ramírez-Aldaba, René H Lara
Total, bioaccessible and mobile concentrations of arsenic and fluorine are determined in polluted surface soil within the Comarca Lagunera region using standardized protocols to obtain a full description of the environmental behavior for these elements. The composition of mineral phases associated with them is evaluated with microscopic and spectroscopic techniques. Mineralogical characterizations indicate that ultra-fine particles (<1-5 μm) including mimetite-vanadite (Pb5(AsO4)3Cl, Pb5(AsO4, VO4)3Cl)-like, lead arseniate (Pb3(AsO4)2)-like and complex arsenic-bearing compounds are main arsenic-bearing phases, while fluorite (CaF2) is the only fluorine-bearing phase...
March 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28339992/rheumatoid-arthritis-specific-cardiovascular-risk-scores-are-not-superior-to-general-risk-scores-a-validation-analysis-of-patients-from-seven-countries
#10
Cynthia S Crowson, Sherine E Gabriel, Anne Grete Semb, Piet L C M van Riel, George Karpouzas, Patrick H Dessein, Carol Hitchon, Virginia Pascual-Ramos, George D Kitas
Objectives.: Cardiovascular disease (CVD) risk calculators developed for the general population do not accurately predict CVD events in patients with RA. We sought to externally validate risk calculators recommended for use in patients with RA including the EULAR 1.5 multiplier, the Expanded Cardiovascular Risk Prediction Score for RA (ERS-RA) and QRISK2. Methods.: Seven RA cohorts from UK, Norway, Netherlands, USA, South Africa, Canada and Mexico were combined...
March 8, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339499/evaluation-of-fusion-protein-cleavage-site-sequences-of-newcastle-disease-virus-in-genotype-matched-vaccines
#11
Shin-Hee Kim, Zongyan Chen, Asuka Yoshida, Anandan Paldurai, Sa Xiao, Siba K Samal
Newcastle disease virus (NDV) causes a devastating poultry disease worldwide. Frequent outbreaks of NDV in chickens vaccinated with conventional live vaccines suggest a need to develop new vaccines that are genetically matched against circulating NDV strains, such as the genotype V virulent strains currently circulating in Mexico and Central America. In this study, a reverse genetics system was developed for the virulent NDV strain Mexico/01/10 strain and used to generate highly attenuated vaccine candidates by individually modifying the cleavage site sequence of fusion (F) protein...
2017: PloS One
https://www.readbyqxmd.com/read/28338960/organellar-genomes-from-a-%C3%A2-5-000-years-old-archaeological-maize-sample-are-closely-related-to-nb-genotype
#12
Bernardo Pérez-Zamorano, Miguel Vallebueno-Estrada, Javier Martínez González, Angel García Cook, Rafael Montiel, Jean-Philippe Vielle-Calzada, Luis Delaye
The story of how pre-Columbian civilizations developed goes hand-in-hand with the process of plant domestication by Mesoamerican inhabitants. Here we present the almost complete sequence of a mitochondrial genome and a partial chloroplast genome from an archaeological maize sample collected at the Valley of Tehuacán, México. Accelerator mass spectrometry dated the maize sample to be 5,040 to 5,300 years before present (95% probability). Phylogenetic analysis of the mitochondrial genome shows that the archaeological sample branches basal to the other Zea mays genomes, as expected...
March 17, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28337801/cross-cultural-comparisons-of-drinking-motives-in-10-countries-data-from-the-drinc-project
#13
Sean P Mackinnon, Marie-Eve Couture, M L Cooper, Emmanuel Kuntsche, Roisin M O'Connor, Sherry H Stewart
INTRODUCTION AND AIMS: This study tested the measurement invariance of the Drinking Motives Questionnaire-Revised Short Form (DMQ-R-SF) in undergraduates across 10 countries. We expected the four-factor structure to hold across countries, and for social motives to emerge as the most commonly endorsed motive, followed by enhancement, coping and conformity motives. We also compared individualistic and collectivistic countries to examine potential differences in the endorsement of drinking motives when countries were divided according to this broad cultural value...
March 23, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28337798/latent-classes-of-polydrug-and-polyroute-use-and-associations-with-human-immunodeficiency-virus-risk-behaviours-and-overdose-among-people-who-inject-drugs-in-tijuana-baja-california-mexico
#14
Meredith C Meacham, Scott C Roesch, Steffanie A Strathdee, Suzanne Lindsay, Patricia Gonzalez-Zuniga, Tommi L Gaines
INTRODUCTION AND AIMS: Patterns of polydrug use among people who inject drugs (PWID) may be differentially associated with overdose and unique human immunodeficiency virus (HIV) risk factors. Subgroups of PWID in Tijuana, Mexico, were identified based on substances used, route of administration, frequency of use and co-injection indicators. DESIGN AND METHODS: Participants were PWID residing in Tijuana age ≥18 years sampled from 2011 to 2012 who reported injecting an illicit substance in the past month (n = 735)...
March 24, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28337392/microsatellite-markers-for-population-studies-of-the-salt-marsh-species-juncus-roemerianus-juncaceae
#15
Hayley R Tumas, Brian M Shamblin, Mark S Woodrey, Campbell J Nairn
PREMISE OF THE STUDY: Juncus roemerianus (Juncaceae) is a foundational species and ecosystem engineer of salt marshes in the Gulf of Mexico. These ecosystems provide coastal flood attenuation, nurseries for important species, and other ecosystem services, but are experiencing significant decline. Nuclear microsatellite markers were developed for J. roemerianus to study genetic diversity and population structure for conservation and restoration efforts. METHODS AND RESULTS: Illumina NextSeq high-throughput sequencing was used to develop a panel of 19 polymorphic microsatellite markers that were tested across individuals from three populations on the Gulf Coast...
March 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28337070/genomic-methods-and-microbiological-technologies-for-profiling-novel-and-extreme-environments-for-the-extreme-microbiome-project-xmp
#16
Scott Tighe, Ebrahim Afshinnekoo, Tara M Rock, Ken McGrath, Noah Alexander, Alexa McIntyre, Sofia Ahsanuddin, Daniela Bezdan, Stefan J Green, Samantha Joye, Sarah Stewart Johnson, Don A Baldwin, Nathan Bivens, Nadim Ajami, Joseph R Carmical, Ian Charold Herriott, Rita Colwell, Mohamed Donia, Jonathan Foox, Nick Greenfield, Tim Hunter, Jessica Hoffman, Joshua Hyman, Ellen Jorgensen, Diana Krawczyk, Jodie Lee, Shawn Levy, Natàlia Garcia-Reyero, Matthew Settles, Kelley Thomas, Felipe Gómez, Lynn Schriml, Nikos Kyrpides, Elena Zaikova, Jon Penterman, Christopher E Mason
The Extreme Microbiome Project (XMP) is a project launched by the Association of Biomolecular Resource Facilities Metagenomics Research Group (ABRF MGRG) that focuses on whole genome shotgun sequencing of extreme and unique environments using a wide variety of biomolecular techniques. The goals are multifaceted, including development and refinement of new techniques for the following: 1) the detection and characterization of novel microbes, 2) the evaluation of nucleic acid techniques for extremophilic samples, and 3) the identification and implementation of the appropriate bioinformatics pipelines...
March 10, 2017: Journal of Biomolecular Techniques: JBT
https://www.readbyqxmd.com/read/28336600/complete-genome-sequences-before-and-after-mammalian-cell-culture-of-zika-virus-isolated-from-the-serum-of-a-symptomatic-male-patient-from-oaxaca-mexico
#17
Celia Boukadida, Jesús M Torres-Flores, Martha Yocupicio-Monroy, Elvira Piten-Isidro, Amaranta Y Rivero-Arrieta, Yara A Luna-Villalobos, Liliane Martínez-Vargas, Sofía L Alcaraz-Estrada, Klintsy J Torres, Rosalia Lira, Gustavo Reyes-Terán, Edgar E Sevilla-Reyes
Zika virus (ZIKV) is an emerging arthropod-borne flavivirus associated with severe congenital malformations and neurological complications. Although the ZIKV genome is well characterized, there is limited information regarding changes after cell isolation and culture adaptation. We isolated, and passaged in Vero cells, ZIKV from the serum of a symptomatic male patient and compared the viral genomes before and after culture. Single nucleotide polymorphisms were characteristic among serum-circulating genomes, while such diversity decreased after cell culture...
March 23, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28336282/-management-of-upper-eyelid-retraction-associated-with-dysthyroid-orbitopathy-during-the-acute-inflammatory-phase-with-botulinum-toxin-type-a
#18
A Nava Castañeda, J L Tovilla Canales, L Garnica Hayashi, A Velasco Y Levy
PURPOSE: To evaluate the efficacy of transconjunctival botulinum toxin type A (BTX-A) in the treatment of upper eyelid retraction in the active inflammatory phase of dysthyroid orbitopathy, establish the ideal dose, and evaluate side effects. METHODS: This is a comparative, prospective study in patients with thyroid orbitopathy, conducted at the Conde Ophthalmology Institute in Valenciana, Mexico. The patients included had dysthyroid orbitopathy in the inflammatory phase, and they were treated with subconjunctival injection of botulinum toxin type A (BTX-A) in the upper eyelid...
March 20, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28336266/progesterone-and-estradiol-profiles-in-different-reproductive-stages-of-captive-collared-peccary-pecari-tajacu-females-assessed-by-fecal-metabolites
#19
Concepción Ahuja-Aguirre, Lorena López-deBuen, Susana Rojas-Maya, Bertha C Hernández-Cruz
The study determined the fecal progesterone and estradiol profiles in different reproductive stages of captive collared peccary (Pecari tajacu) females from eastern Mexico. Fifteen adult females were included. At the start of the study the females were either pregnant (early, mid, or late pregnancy), lactating, or non-lactating of unknown pregnancy status. Feces from each female were collected once a week during nine consecutive months to determine concentrations of fecal progesterone and estradiol metabolites using ELISA...
March 18, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28335011/understanding-public-perception-of-the-need-for-major-change-in-latin-american-healthcare-systems
#20
Ricardo Pérez-Cuevas, Frederico C Guanais, Svetlana V Doubova, Leonardo Pinzón, Luis Tejerina, Diana Pinto Masis, Marcia Rocha, Donna O Harris, James Macinko
The opinions and experiences of the public regarding health services are valuable insights into identifying opportunities to improve healthcare systems. We analyzed the 2012-2013 Public Opinion Health Policy Survey carried out in Brazil (n = 1486), Colombia (n = 1485), El Salvador (n = 1460), Jamaica (n = 1480), México (n = 1492) and Panama (n = 1475). In these countries between 82 and 96% of participants perceived that their health systems needed fundamental changes. The most frequent barrier to access to healthcare was lack of the primary medical home, difficulties in obtaining medical care during the weekends and financial barriers...
March 17, 2017: Health Policy and Planning
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