keyword
MENU ▼
Read by QxMD icon Read
search

Ecuador

keyword
https://www.readbyqxmd.com/read/28428841/reproductive-traits-associated-with-species-turnover-of-amphibians-in-amazonia-and-its-andean-slopes
#1
Octavio Jiménez-Robles, Juan M Guayasamin, Santiago R Ron, Ignacio De la Riva
Assembly of ecological communities is important for the conservation of ecosystems, predicting perturbation impacts, and understanding the origin and loss of biodiversity. We tested how amphibian communities are assembled by neutral and niche-based mechanisms, such as habitat filtering. Species richness, β-diversities, and reproductive traits of amphibians were evaluated at local scale in seven habitats at different elevation and disturbance levels in Wisui Biological Station, Morona-Santiago, Ecuador, on the foothills of the Cordillera del Kutukú; and at regional scale using 109 localities across evergreen forests of Amazonia and its Andean slopes (0-3,900 m a...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28427839/the-prevalence-of-metabolic-syndrome-among-older-adults-in-ecuador-results-of-the-sabe-survey
#2
Carlos H Orces, Enrique Lopez Gavilanez
AIMS: To describe the prevalence of metabolic syndrome among older adults in Ecuador. A secondary objective was to examine the relationship between metabolic syndrome and its components and insulin resistance among non-diabetic participants. MATERIALS AND METHODS: The National Survey of Health, Wellbeing, and Aging survey was used to examine the prevalence of metabolic syndrome according to demographic, behavioral, and health characteristics of the participants...
April 11, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28414633/genome-wide-analysis-provides-evidence-on-the-genetic-relatedness-of-the-emergent-xylella-fastidiosa-genotype-in-italy-to-isolates-from-central-america
#3
Annalisa Giampetruzzi, Maria Saponari, Giuliana Loconsole, Donato Boscia, Vito Nicola Savino, Rodrigo Almeida, Stefania Zicca, Blanca Landa, Carlos Chacon Diaz, Pasquale Saldarelli
Xylella fastidiosa is a plant pathogenic bacterium recently introduced in Europe that is causing decline in olive trees in the South of Italy. Genetic studies have consistently shown that the bacterial genotype recovered from infected olive trees belongs to the sequence type ST53 within subspecies pauca. This genotype, ST53, has also been reported to occur in Costa Rica. The ancestry of ST53 was recently clarified, showing it contains alleles which are monophyletic with those of subsp. pauca in South America...
April 17, 2017: Phytopathology
https://www.readbyqxmd.com/read/28413845/carbon-uptake-by-mature-amazon-forests-has-mitigated-amazon-nations-carbon-emissions
#4
Oliver L Phillips, Roel J W Brienen
BACKGROUND: Several independent lines of evidence suggest that Amazon forests have provided a significant carbon sink service, and also that the Amazon carbon sink in intact, mature forests may now be threatened as a result of different processes. There has however been no work done to quantify non-land-use-change forest carbon fluxes on a national basis within Amazonia, or to place these national fluxes and their possible changes in the context of the major anthropogenic carbon fluxes in the region...
December 2017: Carbon Balance and Management
https://www.readbyqxmd.com/read/28409539/particulate-matter-air-pollution-from-the-city-of-quito-ecuador-activates-inflammatory-signaling-pathways-in%C3%A2-vitro
#5
Victoria M Cevallos, Valeria Díaz, Cherilyn M Sirois
Automobile traffic, industrial processes and natural phenomena cause notable air pollution, including gaseous and particulate contaminants, in urban centers. Exposure to particulate matter (PM) air pollution affects human health, and has been linked to respiratory, cardiovascular and neurological diseases. The mechanisms underlying inflammation in these diverse diseases, and to what extent health effects are different for PM obtained from different sources or locations, are still unclear. This study investigated the in vitro toxicity of ambient course (PM10) and fine (PM2...
May 2017: Innate Immunity
https://www.readbyqxmd.com/read/28396789/neurocysticercosis-a-public-health-problem
#6
Elisa Carolina Jácome Sánchez, Edgar Patricio Correa Díaz, Braulio Martinez Burbano, María Angélica Ortiz Yépez, María Ariana García Castillo
Neurocysticercosis is a parasitic disease of the central nervous system that constitutes a public health problem in endemic regions. Here, we present a patient with epilepsy and cognitive impairment due to neurocysticercosis. A public health intervention could eradicate this disease in endemic regions such as Ecuador.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28388639/the-current-status-of-resistance-to-alpha-cypermethrin-ivermectin-and-amitraz-of-the-cattle-tick-rhipicephalus-microplus-in-ecuador
#7
Richar Rodríguez-Hidalgo, Ximena Pérez-Otáñez, Sandra Garcés-Carrera, Sophie O Vanwambeke, Maxime Madder, Washington Benítez-Ortiz
Rhipicephalus microplus is widely distributed in tropical and subtropical areas of the world where livestock is a principal activity with great veterinary and economic importance. In Ecuador, this hematophagous ectoparasite has been observed between 0 and 2600 masl. One of the main tick control measures is the use of acaricides, which have been indiscriminately used worldwide and in Ecuador. In this country, no studies on acaricide resistance in Rhipicephalus microplus have been published. The current study aims to characterise the level of resistance of R...
2017: PloS One
https://www.readbyqxmd.com/read/28388628/mating-patterns-and-post-mating-isolation-in-three-cryptic-species-of-the-engystomops-petersi-species-complex
#8
Paula A Trillo, Andrea E Narvaez, Santiago R Ron, Kim L Hoke
Determining the extent of reproductive isolation in cryptic species with dynamic geographic ranges can yield important insights into the processes that generate and maintain genetic divergence in the absence of severe geographic barriers. We studied mating patterns, propensity to hybridize in nature and subsequent fertilization rates, as well as survival and development of hybrid F1 offspring for three nominal species of the Engystomops petersi species complex in Yasuní National Park, Ecuador. We found at least two species in four out of six locations sampled, and 14...
2017: PloS One
https://www.readbyqxmd.com/read/28369732/study-of-the-huntington-s-disease-it-15-gene-in-different-ethnic-groups-in-ecuador
#9
César Paz-Y-Miño, Carolina Salazar, Jennyfer M García-Cárdenas, Alejandro Cabrera-Andrade, Andrés López-Cortés, Víctor H Pavón-Realpe, Estefanía Eras, Carla Rodriguez P, Juan P Domínguez Enríquez, Cristian D Cusco Cuzco, Diana C Navarrete Socasi, Paola E Leone
This study aims to establish the current state of the IT-15 (HTT) gene in different Ecuadorian ethnic groups and patients by determining CAG triplet repeats, compared with the ethnicity of individuals. Four hundred twelve individuals were studied using nested PCR and Sanger sequencing: 75 individuals were indigenous (Kichwas), 211 mestizos, and 65 Afro-Ecuadorians. We included 31 patients who were clinically diagnosed with Huntington's disease and relatives of the affected patients (n = 30). Moreover, we correlated the presence of HD in Ecuadorian patients with 46 genetic ancestry-informative insertion-deletion polymorphic markers (AIMs-INDELs)...
April 3, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28344900/temporal-patterns-and-geographic-heterogeneity-of-zika-virus-zikv-outbreaks-in-french-polynesia-and-central-america
#10
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/28339716/prevalence-antimicrobial-resistance-and-genetic-diversity-of-campylobacter-coli-and-campylobacter-jejuni-in-ecuadorian-broilers-at-slaughter-age
#11
Christian Vinueza-Burgos, Magali Wautier, Delphine Martiny, Marco Cisneros, Inge Van Damme, Lieven De Zutter
Thermotolerant Campylobacter spp. are a major cause of foodborne gastrointestinal infections worldwide. The linkage of human campylobacteriosis and poultry has been widely described. In this study we aimed to investigate the prevalence, antimicrobial resistance and genetic diversity of C. coli and C. jejuni in broilers from Ecuador. Caecal content from 379 randomly selected broiler batches originating from 115 farms were collected from 6 slaughterhouses located in the province of Pichincha during 1 year. Microbiological isolation was performed by direct plating on mCCDA agar...
February 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28332845/terrazoanthines-2-aminoimidazole-alkaloids-from-the-tropical-eastern-pacific-zoantharian-terrazoanthus-onoi
#12
Paul O Guillen, Karla B Jaramillo, Gregory Genta-Jouve, Frederic Sinniger, Jenny Rodriguez, Olivier P Thomas
The first chemical study of the common species Terrazoanthus onoi, present off the coast of Ecuador, led to the identification of a new family of 2-aminoimidazole alkaloids named terrazoanthines A-C (1-3). Homologues 1 and 2 feature an unprecedented 6-(imidazol-5-yl)benzo[d]imidazole. Acyl substitution pattern and complete configurational assignments were deduced from comparison between experimental and theoretical (13)C NMR and ECD data, respectively. These compounds may represent key derivatives in the biosynthesis of zoanthoxanthins...
April 7, 2017: Organic Letters
https://www.readbyqxmd.com/read/28332649/epidemiological-surveillance-in-dairy-farms-in-the-pastaza-province-of-ecuador
#13
M Perez Ruano, F V Lam Romero, D Benítez Jiménez, S Ríos Núñez, J C Vargas Burgos, R Quinteros Pozo, X Rodríguez Villafuerte
A survey was carried out on dairy cattle farms in Pastaza province to analyse the degree of compliance with epidemiological surveillance activities (based on the main technical aspects in Ecuador's Guide to Good Dairy Farming Practices) and to assess the reduction of the risk of introducing disease into dairy cattle. Visits were made to 70 dairy and dual-purpose beef/dairy farms, where the survey was conducted to evaluate technical aspects relating to epidemiological surveillance and the risk of introducing disease...
December 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28331911/medicinal-plants-used-in-traditional-herbal-medicine-in-the-province-of-chimborazo-ecuador
#14
Fátima Morales, Susana Padilla, Félix Falconí
BACKGROUND: Phyto-therapy studies on Chimborazo province in Ecuador are really limited. This area, located within the Andes, is considered a millenarian and intercultural province, where multiples cultures and ethnic groups coexist. MATERIALS AND METHODS: The study was conducted through direct interviews with 84 ancestral healers from the Province of Chimborazo, Ecuador. RESULTS: We presented ten most used species by ancestral healers of Chimborazo province to cure different illnesses and their medicinal uses...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28331414/taxonomic-revision-and-cladistic-analysis-of-avicularia-lamarck-1818-araneae-theraphosidae-aviculariinae-with-description-of-three-new-aviculariine-genera
#15
Caroline Sayuri Fukushima, Rogério Bertani
The genus Avicularia Lamarck, 1818 is revised and all species are rediagnosed. The type species, described as Aranea avicularia Linnaeus, 1758, is the oldest mygalomorph species described and its taxonomic history is extensive and confusing. Cladistic analyses using both equal and implied weights were carried out with a matrix of 46 taxa from seven theraphosid subfamilies, and 71 morphological and ecological characters. The optimal cladogram found with Piwe and concavity = 6 suggests Avicularia and Aviculariinae are monophyletic...
2017: ZooKeys
https://www.readbyqxmd.com/read/28329011/diversification-of-the-rainfrog-pristimantis-ornatissimus-in-the-lowlands-and-andean-foothills-of-ecuador
#16
Juan M Guayasamin, Carl R Hutter, Elicio E Tapia, Jaime Culebras, Nicolás Peñafiel, R Alexander Pyron, Carlos Morochz, W Chris Funk, Alejandro Arteaga
Geographic barriers and elevational gradients have long been recognized as important in species diversification. Here, we illustrate an example where both mechanisms have shaped the genetic structure of the Neotropical rainfrog, Pristimantis ornatissimus, which has also resulted in speciation. This species was thought to be a single evolutionary lineage distributed throughout the Ecuadorian Chocó and the adjacent foothills of the Andes. Based on recent sampling of P. ornatissimus sensu lato, we provide molecular and morphological evidence that support the validity of a new species, which we name Pristimantis ecuadorensis sp...
2017: PloS One
https://www.readbyqxmd.com/read/28321252/prevalence-of-anemia-among-older-adults-residing-in-the-coastal-and-andes-mountains-in-ecuador-results-of-the-sabe-survey
#17
Carlos H Orces
Objectives. To estimate the prevalence of anemia and its determinants among older adults in Ecuador. Methods. The present study was based on data from the National Survey of Health, Wellbeing, and Aging. Hemoglobin concentrations were adjusted by participants' smoking status and altitude of residence, and anemia was defined according to the World Health Organization criteria (<12 g/dL in women and <13 g/dL in men). Gender-specific logistic regression models were used to examine the association between demographic and health characteristics and anemia...
2017: Current Gerontology and Geriatrics Research
https://www.readbyqxmd.com/read/28318380/pup-mortality-and-evidence-for-pathogen-exposure-in-galapagos-sea-lions-zalophus-wollebaeki-on-san-cristobal-island-galapagos-ecuador
#18
Judith Denkinger, Nataly Guevara, Sofia Ayala, Juan Carlos Murillo, Maximilian Hirschfeld, Ignasi Montero-Serra, Katharina Fietz, Tracey Goldstein, Mark Ackermann, Veronica Barragán, Francisco Cabrera, Cristina Chavez, Edward J Dubovi, Jael Martinez, Gabriel Trueba
The Galapagos sea lion ( Zalophus wollebaeki ), an endangered species, experiences high pup mortality (up to 100%) in years when El Niño events reduce food supply in the Galapagos Islands. Mortality of pups in non-El Niño years is estimated to be 5% in undisturbed colonies. From 2009 to 2012 we observed high pup mortality (up to 66%) in colonies close to the Galapagos capital, Puerto Baquerizo Moreno, where contact with humans, domestic animals, and rats is frequent. Gross postmortem findings from 54 pups included hemorrhagic lesions in liver and congestion in lungs; histopathology suggested a possible association with infectious diseases...
March 20, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28294451/genetic-population-structure-in-an-equatorial-sparrow-roles-for-culture-and-geography
#19
Julie E Danner, Robert C Fleischer, Raymond M Danner, Ignacio T Moore
Female preference for local cultural traits has been proposed as a barrier to breeding among animal populations. As such, several studies have found correlations between male bird song dialects and population genetics over relatively large distances. To investigate if female choice for local dialects could act as a barrier to breeding between nearby and contiguous populations, we tested if variation in male song dialects explains genetic structure among eight populations of rufous-collared sparrows (Zonotrichia capensis) in Ecuador...
March 10, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28292765/soil-transmitted-helminthiasis-in-indigenous-groups-a-community-cross-sectional-study-in-the-amazonian-southern-border-region-of-ecuador
#20
Natalia Romero-Sandoval, Claudia Ortiz-Rico, Héctor Javier Sánchez-Pérez, Daniel Valdivieso, Carlos Sandoval, Jacob Pástor, Miguel Martín
BACKGROUND: Rural communities in the Amazonian southern border of Ecuador have benefited from governmental social programmes over the past 9 years, which have addressed, among other things, diseases associated with poverty, such as soil transmitted helminth infections. The aim of this study was to explore the prevalence of geohelminth infection and several factors associated with it in these communities. METHODS: This was a cross sectional study in two indigenous communities of the Amazonian southern border of Ecuador...
March 14, 2017: BMJ Open
keyword
keyword
24776
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"