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https://www.readbyqxmd.com/read/28453779/first-record-of-lutzomyia-lutzomyia-longipalpis-diptera-psychodidae-phlebotominae-on-the-trinational-frontier-brazil-peru-bolivia-of-south-western-amazonia
#1
Diones Antonio Borges, Silvia Maria Guerra Molina, Mara Cristina Pinto, Eunice Aparecida Bianchi Galati, Manuel Cesario, Dennys Ghenry Samillan Ortiz
Na América do Sul, a principal espécie de flebotomíneo envolvido na transmissão de Leishmania infantum chagasi , agente etiológico da Leishmaniose visceral (VL), é Lutzomyia longipalpis (Lutz & Neiva, 1912). Esta espécie já foi registrada na Colômbia, Venezuela, Bolívia, Argentina, Paraguai, Uruguai e Brasil, onde foram registradas em 24 dos 27 estados brasileiros, com exceção do Acre, Amazonas e Santa Catarina. As coletas foram realizadas por um ano (abril de 2013 a março de 2014) utilizando-se armadilhas de luz tipo de CDC em diferentes ambientes no município de Assis Brasil, estado do Acre...
April 25, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28441094/background-rates-of-disease-in-latin-american-children-from-a-rotavirus-vaccine-study
#2
Marc Baay, Kaatje Bollaerts, Claudio Struchiner, Thomas Verstraeten
BACKGROUND: Knowledge of background rates of adverse events is crucial to assess vaccine safety concerns. We used data from a rotavirus vaccine study (Ruiz-Palacios et al., NEJM, 2006) including 63,225 infants from 11 Latin American countries to investigate reporting rates of serious adverse events (SAEs) among these infants, and describe rates by country, gender, age, and season. METHODS: For this randomized, double-blind, placebo-controlled, phase 3 trial, investigators from Argentina, Brazil, Chile, Colombia, Dominican Republic, Honduras, Mexico, Nicaragua, Panama, Peru, and Venezuela recruited 6-to-13-week-old healthy infants...
April 25, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28434100/complete-genome-sequence-of-jacquemontia-yellow-vein-virus-a-novel-begomovirus-infecting-jacquemontia-tamnifolia-in-venezuela
#3
Elvira Fiallo-Olivé, Dorys T Chirinos, Francis Geraud-Pouey, Jesús Navas-Castillo
Wild plants of the family Convolvulaceae are hosts for a few New World begomoviruses (genus Begomovirus, family Geminiviridae). In this work, we report the complete genome sequence of a new begomovirus infecting the wild convolvulaceous plant Jacquemontia tamnifolia in Venezuela. The cloned bipartite genome showed the organization of typical New World begomoviruses and was found to be phylogenetically related to those of begomoviruses from Venezuela and other Caribbean countries. Several recombination events have been shown to have occurred involving genome fragment exchange with related begomoviruses infecting crops such as tomato and cucurbits and wild plants, including Jacquemontia sp...
April 22, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28418539/ophthalmic-manifestations-of-congenital-zika-syndrome-in-colombia-and-venezuela
#4
Juan B Yepez, Felipe A Murati, Michele Pettito, Carlos F Peñaranda, Jazmin de Yepez, Gladys Maestre, J Fernando Arevalo
Importance: The ocular manifestations and sequelae of Zika virus infection are not well known. Recently, the World Health Organization changed the declaration of Zika as a public health emergency and designated the viral outbreak and related microcephaly clusters as a long-term program of work. This change indicates the urgent need to evaluate and document ophthalmic manifestations in patients for timely management of this disease. In addition, confirmation whether the public health problem in Brazil extends to other regions in South America is needed...
April 13, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28417050/venezuelan-surgeons-view-concerning-teaching-human-anatomical-dissection
#5
Rafael Romero-Reverón
Currently, the importance of human anatomical dissection have come under debate in many countries but there are not references in Venezuela on this concern. This survey's aim is to assess the insights of Venezuelan surgeons and their outlines of usage of human anatomical dissection in teaching and learning human anatomy. Sixty-five Venezuelan surgeons at the Centro Médico Docente La Trinidad completed an anonymous survey on current and future teaching practices in human anatomy. Eighty-nine point two three percent of surveyed (n=58) conferred importance to human anatomical dissection despite the arrival of new innovations in learning human anatomy...
March 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28413845/carbon-uptake-by-mature-amazon-forests-has-mitigated-amazon-nations-carbon-emissions
#6
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/28392201/ongoing-drugs-shortage-in-venezuela-and-effects-on-cancer-care
#7
Talha Khan Burki
No abstract text is available yet for this article.
April 6, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28390691/zika-virus-detected-in-amniotic-fluid-and-umbilical-cord-blood-in-an-in%C3%A2-vitro-fertilization-conceived-pregnancy-in-venezuela
#8
Isaac Benjamin, Gissel Fernández, José Valentin Figueira, Leticia Parpacén, María Teresa Urbina, Randolfo Medina
OBJECTIVE: To describe the consequences of Zika virus infection at 10 weeks of gestation in an IVF-conceived pregnancy in Venezuela. DESIGN: A case report. SETTING: Private assisted reproduction unit. PATIENT(S): A 36-year-old patient who conceived her first pregnancy through IVF and became infected with Zika virus at 10 weeks' gestation in Venezuela. INTERVENTION(S): In vitro fertilization with fresh ET...
April 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28387974/the-streptomyces-o-b-one-connection-a-force-within-layered-repression-of-a-key-developmental-decision
#9
Klas Flärdh, Joseph R McCormick
The study of Streptomyces development has made significant advances in the past few years and ongoing work is poised to add even more. One key to advancing the field has been the application of genome-wide approaches using S. venezuelae, which is capable of fairly synchronous sporulation in submerged growth conditions. WhiA and WhiB are well-known transcriptional regulators governing the pathway for spore formation in aerial hyphae. Recent ChIP-seq and RNA expression analyses indicated that WhiA and WhiB regulate the same set of genes, each being dependent on the presence of the other to exert control...
April 7, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28379959/unraveling-chagas-disease-transmission-through-the-oral-route-gateways-to-trypanosoma-cruzi-infection-and-target-tissues
#10
Danielle Silva-Dos-Santos, Juliana Barreto-de-Albuquerque, Bárbara Guerra, Otacilio C Moreira, Luiz Ricardo Berbert, Mariana Tavares Ramos, Barbara Angelica S Mascarenhas, Constança Britto, Alexandre Morrot, Déa M Serra Villa-Verde, Luciana Ribeiro Garzoni, Wilson Savino, Vinícius Cotta-de-Almeida, Juliana de Meis
Oral transmission of Trypanosoma cruzi, the causative agent of Chagas disease, is the most important route of infection in Brazilian Amazon and Venezuela. Other South American countries have also reported outbreaks associated with food consumption. A recent study showed the importance of parasite contact with oral cavity to induce a highly severe acute disease in mice. However, it remains uncertain the primary site of parasite entry and multiplication due to an oral infection. Here, we evaluated the presence of T...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28377749/streptomyces-venezuelae-isp5230-maintains-excretion-of-jadomycin-upon-disruption-of-the-mfs-transporter-jadl-located-within-the-natural-product-biosynthetic-gene-cluster
#11
Stephanie M Forget, Jennifer McVey, Leo C Vining, David L Jakeman
JadL was identified as a Major Facilitator Superfamily (MFS) transporter (T.C. 2.A.1) through sequence homology. The protein is encoded by jadL, situated within the jadomycin biosynthetic gene cluster. JadL has, therefore, been assigned a putative role in host defense by exporting its probable substrates, the jadomycins, a family of secondary metabolites produced by Streptomyces venezuelae ISP5230. Herein, we evaluate this assumption through the construction and analysis of a jadL disrupted mutant, S. venezuelae VS678 (ΔjadL::aac(3)IV)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28365125/development-of-subcutaneous-fat-in-spanish-and-latin-american-children-and-adolescents-reference-values-for-biceps-triceps-subscapular-and-suprailiac-skinfolds
#12
M D Marrodán, M González-Montero de Espinosa, Á Herráez, E L Alfaro, I F Bejarano, M Carmenate, D B Lomaglio, N López-Ejeda, A Martínez, M S Mesa, B Méndez Pérez, J M Meléndez, S Moreno-Romero, J L Pacheco, V Vázquez, J E Dipierri
Subcutaneous fat skinfolds represent a reliable assessment instrument of adiposity status. This study provides current percentile references for four subcutaneous skinfolds (biceps, triceps, subscapular, suprailiac) applicable to children and adolescents in Spain and in Latin American countries where data are scarce. The design consisted of a cross-sectional multicenter study performed with identical methods in 5 countries (Argentina, Cuba, Mexico, Spain and Venezuela). Total sample comprised 9163 children and youths (boys 4615 - girls 4548) aged 6-18 years, healthy and without apparent pathologies...
February 22, 2017: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/28359830/taxonomy-and-polytene-chromosomes-of-the-neotropical-black-fly-simulium-perplexum-diptera-simuliidae
#13
Nayra Gomes da Silva, Neusa Hamada, Peter H Adler
Simulium perplexum Shelley, Maia-Herzog, Luna Dias & Couch is structurally similar in the pupal stage to Simulium guianense Wise, the main vector in the onchocerciasis foci of Amazonian Brazil and Venezuela. We report S. perplexum for the first time beyond its type locality (Guyana, Potaro River), describe its larva, redescribe its pupa, and provide a chromosomal comparison with S. guianense and other morphologically similar species. We collected it in two rivers in Rurópolis municipality, Pará state, Brazil...
March 27, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28341928/description-of-a-new-species-of-ixodes-latreille-1795-acari-ixodidae-and-redescription-of-i-lasallei-m%C3%A3-ndez-ortiz-1958-parasites-of-agoutis-and-pacas-rodentia-dasyproctidae-cuniculidae-in-central-and-south-america
#14
Dmitry A Apanaskevich, Sergio E Bermúdez
Ixodes bocatorensis n. sp. (Acari: Ixodidae), is described based on adults ex agoutis (Rodentia: Dasyproctidae), pacas (Rodentia: Cuniculidae) and "tapir and sloth" (Perissodactyla: Tapiridae and Pilosa) from Colombia, Panama and Venezuela. Adults of I. bocatorensis n. sp. are similar to those of I. lasallei Méndez & Ortiz, 1958 but can be distinguished by the scutum dimensions, punctation pattern, gnathosoma and palpi measurements and their ratios, basis capituli anterior angle and shape of the spur of palpal segment I ventrally...
March 24, 2017: Systematic Parasitology
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/28322809/venezuela-s-economic-crisis-hampers-hiv-aids-treatment
#16
Joe Parkin Daniels
No abstract text is available yet for this article.
March 18, 2017: Lancet
https://www.readbyqxmd.com/read/28320411/human-rotavirus-strains-circulating-in-venezuela-after-vaccine-introduction-predominance-of-g2p-4-and-reemergence-of-g1p-8
#17
Esmeralda Vizzi, Oscar A Piñeros, M Daniela Oropeza, Laura Naranjo, José A Suárez, Rixio Fernández, José L Zambrano, Argelia Celis, Ferdinando Liprandi
BACKGROUND: Rotavirus (RV) is the most common cause of severe childhood diarrhea worldwide. Despite Venezuela was among the first developing countries to introduce RV vaccines into their national immunization schedules, RV is still contributing to the burden of diarrhea. Concerns exist about the selective pressure that RV vaccines could exert on the predominant types and/or emergence of new strains. RESULTS: To assess the impact of RV vaccines on the genotype distribution 1 year after the vaccination was implemented, a total of 912 fecal specimens, collected from children with acute gastroenteritis in Caracas from February 2007 to April 2008, were screened, of which 169 (18...
March 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28318176/fluid-overload-and-kidney-failure-in-children-with-severe-sepsis-and-septic-shock-a-cohort-study
#18
Omar E Naveda Romero, Andrea F Naveda Meléndez
INTRODUCTION: In children with sepsis, fluid overload as a result of an aggressive fluid replacement or excessive fluid administration may result in kidney impairment and increased mortality. Objective. To determine the association between fluid overload and the rate of kidney failure in a group of children with severe sepsis and septic shock. POPULATION AND METHODS: This was a prospective cohort study conducted in the intensive care unit of Hospital Universitario de Pediatría “Dr...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28291671/molecular-characterization-of-kpc-producing-klebsiella-pneumoniae-isolated-from-patients-in-a-public-hospital-in-caracas-venezuela
#19
Aura Dayana Falco Restrepo, Mariel Alexandra Velásquez Nieves, Howard Takiff
INTRODUCTION: Klebsiella pneumoniae carbapenemase (KPC)-producing bacteria are amongst the most important causative agents of nosocomial infections worldwide. Isolates of this bacterium have been identified in Venezuela but little is known about their local spread. The aim of this study was to perform the molecular characterization of KPC-producing strains isolated from 2012 to 2013 in a public hospital in Caracas, Venezuela. METHODS: Twenty-two K. pneumoniae clinical isolates phenotypically classified as KPC producing were subjected to PCR screening for the presence of blaKPC genes and their location within transposon Tn4401...
March 11, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28288843/non-invasive-diagnosis-of-cutaneous-leishmaniasis-by-the-direct-boil-loop-mediated-isothermal-amplification-method-and-minion%C3%A2-nanopore-sequencing
#20
Kazuo Imai, Norihito Tarumoto, Kiyoko Amo, Makoto Takahashi, Naoya Sakamoto, Atsushi Kosaka, Yasuyuki Kato, Kei Mikita, Jun Sakai, Takashi Murakami, Yutaka Suzuki, Shigefumi Maesaki, Takuya Maeda
Cutaneous leishmaniasis (CL) is gaining attention as a public health problem. We present two cases of CL imported from Syria and Venezuela in Japan. We diagnosed them as CL non-invasively by the direct boil loop-mediated isothermal amplification method and an innovative sequencing method using the MinION™ sequencer. This report demonstrates that our procedure could be useful for the diagnosis of CL in both clinical and epidemiological settings.
March 11, 2017: Parasitology International
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