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https://www.readbyqxmd.com/read/28924917/high-heterogeneity-in-soil-composition-and-quality-in-different-mangrove-forests-of-venezuela
#1
X L Otero, A Méndez, G N Nóbrega, T O Ferreira, W Meléndez, F Macías
Mangrove forests play an important role in biogeochemical cycles of metals, nutrients, and C in coastal ecosystems. However, these functions could be strongly affected by the mangrove soil degradation. In this study, we performed an intensive sampling characterizing mangrove soils under different types of environment (lagoon/gulf) and vegetation (Rhizophora/Avicennia/dead mangrove) in the Venezuelan coast. To better understand the spatial heterogeneity of the composition and characteristics of the soils, a wide range of the soil attributes were analyzed...
September 18, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28923090/mapping-occurrence-of-taenia-solium-taeniosis-cysticercosis-and-areas-at-risk-of-porcine-cysticercosis-in-central-america-and-the-caribbean-basin
#2
Uffe Christian Braae, Brecht Devleesschauwer, Fortune Sithole, Ziqi Wang, Arve Lee Willingham
BACKGROUND: This study aimed to map the occurrence of Taenia solium taeniosis/cysticercosis at national level within Central America and the Caribbean basin, and to map the distribution of porcine cysticercosis at first-level administrative subdivision level (department level) and the porcine population at risk. This zoonotic parasite is believed to be widely endemic across most of Latin America. However, there is little information readily available for Central America and the Caribbean basin...
September 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28911064/cancer-mortality-predictions-for-2017-in-latin-america
#3
G Carioli, C La Vecchia, P Bertuccio, T Rodriguez, F Levi, P Boffetta, E Negri, M Malvezzi
Background: From most recent available data, we predicted cancer mortality statistics in selected Latin American countries for the year 2017, with focus on lung cancer. Materials and methods: We obtained death certification data from the World Health Organization and population data from the Pan American Health Organization database for all neoplasms and selected cancer sites. We derived figures for Argentina, Brazil, Chile, Colombia, Cuba, Mexico and Venezuela...
September 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28905120/animal-and-human-bite-injuries-a-5-year-retrospective-study-in-a-large-urban-public-hospital-in-venezuela
#4
Muñoz Gelvez, Ruben Enrique, Golaszewski Gajos, Jose Bladimir, Diaz Carvajal, Alvaro Luis
INTRODUCTION: Animal bite injuries to the head and neck regions are an important public health problem. Most of these bites are from dogs. A 10-year retrospective study was undertaken to determine the prevalence of animal and human bites. MATERIALS AND METHODS: This retrospective study was done from January 2011 to December 2016 and included 387 patients with a mean age of 21.51 years. Data collection included age, sex, days of hospitalization, lesion type, and clinical management...
September 13, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28903706/cross-situational-self-consistency-in-nine-cultures-the-importance-of-separating-influences-of-social-norms-and-distinctive-dispositions
#5
Kenneth D Locke, A Timothy Church, Khairul A Mastor, Guy J Curtis, Pamela Sadler, Kelly McDonald, José de Jesús Vargas-Flores, Joselina Ibáñez-Reyes, Hiroaki Morio, Jose Alberto S Reyes, Helena F Cabrera, Rina Mazuera Arias, Brigida Carolina Rincon, Neida Coromoto Albornoz Arias, Arturo Muñoz, Fernando A Ortiz
We assessed self-consistency (expressing similar traits in different situations) by having undergraduates in the United States ( n = 230), Australia ( n = 220), Canada ( n = 240), Ecuador ( n = 101), Mexico ( n = 209), Venezuela ( n = 209), Japan ( n = 178), Malaysia ( n = 254), and the Philippines ( n = 241) report the traits they expressed in four different social situations. Self-consistency was positively associated with age, well-being, living in Latin America, and not living in Japan; however, each of these variables showed a unique pattern of associations with various psychologically distinct sources of raw self-consistency, including cross-situationally consistent social norms and injunctions...
July 2017: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/28901006/reproductive-aspects-of-the-atlantic-angel-shark-squatina-dumeril-in-the-southern-caribbean-sea
#6
A Tagliafico, S Rangel, M K Broadhurst
The maturity and reproduction of the Atlantic angel shark Squatina dumeril were assessed using 77 females (29·2-110·4 cm total length; LT ) and 269 males (58·7-108·2 cm LT ) harvested by artisanal gillnetters off Venezuela. The biased sex ratio implied segregation or sex-specific gear selectivity. Based on the development of the reproductive tract, 50% LT at sexual maturity (LT50 , mean ± s.e.) for females and males were estimated at 86·14 ± 0·64 and 81·55 ± 0·12 cm, respectively...
September 12, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28895539/frequency-and-clinical-and-molecular-aspects-of-familial-hypercholesterolemia-in-an-endocrinology-unit-in-ciudad-bol%C3%A3-var-venezuela
#7
Marcos M Lima-Martínez, Mariela Paoli, Alejandra Vázquez-Cárdenas, María Teresa Magaña-Torres, Ornella Guevara, María Carolina Muñoz, Alberto Parrilla-Alvarez, Yuliangelys Márquez, Ana Medeiros, Mafalda Bourbon
OBJECTIVE: To assess the frequency and the clinical, biochemical, and molecular aspects of familial hypercholesterolemia (FH) in subjects attending an endocrinology unit. METHODS: An observational, descriptive study evaluating 3,140 subjects attending the endocrinology unit of Centro Médico Orinoco in Ciudad Bolívar, Venezuela, from 7 January 2013 to 9 December 2016. The index cases were selected using the Dutch Lipid Clinic Network criteria. Plasma lipid levels were measured, and a molecular analysis was performed by DNA sequencing of the LDLR and APOB genes...
October 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28887820/the-epidemiology-of-mandibular-fractures-in-caracas-venezuela-incidence-and-its-combination-patterns
#8
Félix José Amarista Rojas, María Andrea Bordoy, Morelba Cachazo, Juan Dopazo, Henrique Vélez
BACKGROUND/AIM: As reported in the literature by several authors, there is a great variation between countries in terms of etiology and patterns of mandibular fractures. The aim of this study was to determine the incidence of mandibular fractures at the Oral and Maxillofacial Surgery Unit, "Dr. Domingo Luciani" Hospital, Venezuela during the period January 2010 to March 2013. MATERIALS AND METHODS: A retrospective study was conducted to assess the etiology of trauma, age group, gender, anatomic distribution of injury and combination patterns by reviewing patients records...
September 8, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28887402/detection-of-long-repeat-expansions-from-pcr-free-whole-genome-sequence-data
#9
Egor Dolzhenko, Joke J F A van Vugt, Richard J Shaw, Mitchell A Bekritsky, Marka van Blitterswijk, Giuseppe Narzisi, Subramanian S Ajay, Vani Rajan, Bryan Lajoie, Nathan H Johnson, Zoya Kingsbury, Sean J Humphray, Raymond D Schellevis, William J Brands, Matt Baker, Rosa Rademakers, Maarten Kooyman, Gijs H P Tazelaar, Michael A van Es, Russell McLaughlin, William Sproviero, Aleksey Shatunov, Ashley Jones, Ahmad Al Khleifat, Alan Pittman, Sarah Morgan, Orla Hardiman, Ammar Al-Chalabi, Chris Shaw, Bradley Smith, Edmund J Neo, Karren Morrison, Pam Shaw, Catherine Reeves, Lara Winterkorn, Nancy S Wexler, David E Housman, Christopher W Ng, Alina L Li, Ryan J Taft, Leonard H van den Berg, David R Bentley, Jan H Veldink, Michael A Eberle
Identifying large expansions of short tandem repeats (STRs) such as those that cause amyotrophic lateral sclerosis (ALS) and fragile X syndrome is challenging for short-read whole-genome sequencing (WGS) data. A solution to this problem is an important step towards integrating WGS into precision medicine. We have developed a software tool called ExpansionHunter that, using PCR-free WGS short-read data, can genotype repeats at the locus of interest, even if the expanded repeat is larger than the read length...
September 8, 2017: Genome Research
https://www.readbyqxmd.com/read/28884676/the-mtrab-two-component-system-controls-antibiotic-production-in-streptomyces-coelicolor-a3-2
#10
Nicolle F Som, Daniel Heine, Neil Holmes, Felicity Knowles, Govind Chandra, Ryan F Seipke, Paul A Hoskisson, Barrie Wilkinson, Matthew I Hutchings
MtrAB is a highly conserved two-component system implicated in the regulation of cell division in the Actinobacteria. It coordinates DNA replication with cell division in the unicellular Mycobacterium tuberculosis and links antibiotic production to sporulation in the filamentous Streptomyces venezuelae. Chloramphenicol biosynthesis is directly regulated by MtrA in S. venezuelae and deletion of mtrB constitutively activates MtrA and results in constitutive over-production of chloramphenicol. Here we report that in Streptomyces coelicolor, MtrA binds to sites upstream of developmental genes and the genes encoding ActII-1, ActII-4 and RedZ, which are cluster-situated regulators of the antibiotics actinorhodin (Act) and undecylprodigiosin (Red)...
September 8, 2017: Microbiology
https://www.readbyqxmd.com/read/28884331/paratuberculosis-in-latin-america-a-systematic-review
#11
REVIEW
I F Espeschit, D G G Schwarz, A C S Faria, M C C Souza, F A Paolicchi, R A Juste, I A Carvalho, M A S Moreira
Latin America is the definition of the American group, where languages of Latin origin are spoken, including countries in South, Central, and North America. Paratuberculosis is a gastrointestinal contagious chronic disease that affects ruminants, whose etiological agent is the bacilli Mycobacterium avium subsp. paratuberculosis (MAP). Paratuberculosis is characterized by intermittent diarrhea, decreased milk production, dehydration, and progressive weight loss and is possibly involved in Crohn's disease, a human intestinal disease...
September 7, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28882517/diagnosis-and-genetic-analysis-of-the-worldwide-distributed-rattus-borne-trypanosoma-herpetosoma-lewisi-and-its-allied-species-in-blood-and-fleas-of-rodents
#12
Paola A Ortiz, Herakles A Garcia, Luciana Lima, Flávia Maia da Silva, Marta Campaner, Carlos L Pereira, Sathaporn Jittapalapong, Luis Neves, Marc Desquesnes, Erney P Camargo, Marta M G Teixeira
Trypanosoma (Herpetosoma) lewisi is a cosmopolitan parasite of rodents strongly linked to the human dispersal of Rattus spp. from Asia to the rest of the world. This species is highly phylogenetically related to trypanosomes from other rodents (T. lewisi-like), and sporadically infects other mammals. T. lewisi may opportunistically infect humans, and has been considered an emergent rat-borne zoonosis associated to poverty. We developed the THeCATL-PCR based on Cathepsin L (CATL) sequences to specifically detect T...
September 4, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28880289/herbarium-collections-venezuela-s-botanic-heritage-in-jeopardy
#13
Juan Núñez-Farfán, Javier A Simonetti, Thalia Morales Roja
No abstract text is available yet for this article.
September 6, 2017: Nature
https://www.readbyqxmd.com/read/28871361/are-negative-peer-influences-domain-specific-examining-the-influence-of-peers-and-parents-on-externalizing-and-drug-use-behaviors
#14
Ronald B Cox, Michael M Criss, Amanda W Harrist, Martha Zapata-Roblyer
Most studies tend to characterize peer influences as either positive or negative. In a sample of 1815 youth from 14 different schools in Caracas, Venezuela, we explored how two types of peer affiliations (i.e., deviant and drug-using peers) differentially mediated the paths from positive parenting to youth's externalizing behavior and licit and illicit drug use. We used Zero Inflated Poisson models to test the probability of use and the extent of use during the past 12 months. Results suggested that peer influences are domain specific among Venezuelan youth...
September 4, 2017: Journal of Primary Prevention
https://www.readbyqxmd.com/read/28867336/plasmatic-levels-of-n-terminal-pro-atrial-natriuretic-peptide-in-preeclamptic-patients-and-healthy-normotensive-pregnant-women
#15
Eduardo Reyna-Villasmil, Jorly Mejia-Montilla, Nadia Reyna-Villasmil, Gabriel Mayner-Tresol, Pedro Herrera-Moya, Andreina Fernández-Ramírez, Marta Rondón-Tapía
BACKGROUND AND OBJECTIVE: To compare plasma N-terminal pro-atrial natriuretic peptide concentrations in preeclamptic patients and healthy normotensive pregnant women. METHODS: A cases-controls study was done with 180 patients at Hospital Central Dr. Urquinaona, Maracaibo, Venezuela, that included 90 preeclamptic patients (group A; cases) and 90 healthy normotensive pregnant women selected with the same age and body mass index similar to group A (group B; controls)...
August 31, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28836955/prevalence-of-hepatitis-b-in-people-living-with-hiv-aids-in-latin-america-and-the-caribbean-a-systematic-review-and-meta-analysis
#16
Fatima Mitiko Tengan, Edson Abdala, Marisa Nascimento, Wanderley Marques Bernardo, Antonio Alci Barone
BACKGROUND: Hepatitis B virus (HBV) infection is a major cause of chronic liver disease worldwide. In immunocompromised patients, the chronicity rates of HBV infection are higher, but the rates of hepatitis Be antigen (HBeAg) and HBsAg loss and seroconversion to anti-HBe and anti-HBs are lower than those in immunocompetent subjects. This study aimed to evaluate articles on the prevalence of HBsAg in people living with human immunodeficiency virus (HIV) /AIDS (PLWHA) in Latin America and the Caribbean (LAC)...
August 24, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28817598/taxonomic-review-of-copella-characiformes-lebiasinidae-with-an-identification-key-for-the-species
#17
Manoela M F Marinho, Naércio A Menezes
A taxonomic review of Copella is presented based on the analysis of the type material of all nominal species and extensive material from South American drainages. Six out of ten nominal species are recognized as valid: Copella arnoldi, C. callolepis, C. compta, C. eigenmanni, C. nattereri, and C. vilmae. Copella carsevennensis is a junior synonym of C. arnoldi, C. nigrofasciata and 'Nannostomus' stigmasemion are junior synonyms of C. callolepis, C. metae is junior synonym of C. eigenmanni, and C. meinkeni is junior synonym of C...
2017: PloS One
https://www.readbyqxmd.com/read/28814522/characterization-of-cis-acting-rna-elements-of-zika-virus-by-using-a-self-splicing-ribozyme-dependent-infectious-clone
#18
Zhong-Yu Liu, Jiu-Yang Yu, Xing-Yao Huang, Hang Fan, Xiao-Feng Li, Yong-Qiang Deng, Xue Ji, Meng-Li Cheng, Qing Ye, Hui Zhao, Jian-Feng Han, Xiao-Ping An, Tao Jiang, Bo Zhang, Yi-Gang Tong, Cheng-Feng Qin
Zika virus (ZIKV) has caused significant outbreaks and epidemics in the Americas recently, raising global concern due to its ability to cause microcephaly and other neurological complications. A stable and efficient infectious clone of ZIKV is urgently needed. However, the instability and toxicity of flavivirus cDNA clones in E. coli hosts has hindered the development of ZIKV infectious clones. Herein, using a novel self-splicing ribozyme-based strategy, we have generated a stable infectious cDNA clone of a contemporary ZIKV strain imported from Venezuela to China in 2016...
August 16, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28792387/the-green-helmets-providing-care-in-venezuela-s-protests
#19
Manuel Rueda
No abstract text is available yet for this article.
August 5, 2017: Lancet
https://www.readbyqxmd.com/read/28777318/unintentional-child-and-adolescent-drowning-mortality-from-2000-to-2013-in-21-countries-analysis-of-the-who-mortality-database
#20
Yue Wu, Yun Huang, David C Schwebel, Guoqing Hu
Limited research considers change over time for drowning mortality among individuals under 20 years of age, or the sub-cause (method) of those drownings. We assessed changes in under-20 drowning mortality from 2000 to 2013 among 21 countries. Age-standardized drowning mortality data were obtained through the World Health Organization (WHO) Mortality Database. Twenty of the 21 included countries experienced a reduction in under-20 drowning mortality rate between 2000 and 2013, with decreases ranging from -80 to -13%...
August 4, 2017: International Journal of Environmental Research and Public Health
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