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https://www.readbyqxmd.com/read/28449403/effects-of-malnutrition-on-treatment-related-morbidity-and-survival-of-children-with-cancer-in-nicaragua
#1
Allison K Pribnow, Roberta Ortiz, Luis Fulgencio Báez, Luvy Mendieta, Sandra Luna-Fineman
BACKGROUND: Most children with cancer live in resource-limited countries where malnutrition is often prevalent. We identified the relationship between malnutrition and treatment-related morbidity (TRM), abandonment of therapy, and survival of children with cancer in Nicaragua to better inform targeted nutritional interventions. PROCEDURE: We conducted a retrospective review of patients aged 6 months to 18 years with newly diagnosed acute lymphoblastic leukemia, acute myeloid leukemia (AML), Wilms tumor, Hodgkin lymphoma, or Burkitt lymphoma (BL) who were treated between January 1, 2004, and December 31, 2007 at Children's Hospital Manuel de Jesus Rivera in Managua, Nicaragua...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28443277/pediatric-hand-surgery-training-in-nicaragua-a-sustainable-model-of-surgical-education-in-a-resource-poor-environment
#2
Mary Claire B Manske, Jairo J Rios Roque, Gabriel Ramos Zelaya, Michelle A James
Recent reports have demonstrated that nearly two-thirds of the world's population do not have access to adequate surgical care, a burden that is borne disproportionately by residents of resource-poor countries. Although the reasons for limited access to surgical care are complex and multi-factorial, among the most substantial barriers is the lack of trained surgical providers. This is particularly true in surgical subspecialties that focus on life-improving, rather than life-saving, treatments, such as pediatric hand and upper extremity surgery, which manages such conditions as congenital malformations, trauma and post-traumatic deformities including burns, and neuromuscular conditions (brachial plexus birth palsy, spinal cord injury, and cerebral palsy)...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28441094/background-rates-of-disease-in-latin-american-children-from-a-rotavirus-vaccine-study
#3
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/28395541/hb-presbyterian-hbb-c-327c-g-in-a-nicaraguan-family
#4
Allan Pernudy-Ubau, Jaslyn Salinas-Molina, Yaneris Requenez, Marianela Ortiz-Lopez, Ann-Christin Puller, Kenia García-Rosales, Anaishelle Rodríguez-Estrada, Walter Rodríguez-Romero, Gerardo Mejía-Baltodano, Hong-Yuan Luo, David H K Chui
Hemoglobin (Hb) is the protein responsible for oxygen transportation. It is a tetrameric protein comprising two α- and two β-globin subunits. In the literature, a large number of mutations in the α- and β-globin genes have been documented. Among these mutations, Hb Presbyterian (HBB: c.327 C>G), is a naturally occurring mutant exerting low oxygen affinity. The C to G exchange (AAC>AAG) at codon 108 of the β-globin gene results in the substitution of asparagine by lysine. Here, we document the identification of HBB: c...
April 11, 2017: Hemoglobin
https://www.readbyqxmd.com/read/28381638/antibody-epitopes-identified-in-critical-regions-of-dengue-virus-nonstructural-1-protein-in-mouse-vaccination-and-natural-human-infections
#5
Tomer Hertz, P Robert Beatty, Zachary MacMillen, Sarah S Killingbeck, Chunling Wang, Eva Harris
Dengue is a global public health problem and is caused by four dengue virus (DENV) serotypes (DENV1-4). A major challenge in dengue vaccine development is that cross-reactive anti-DENV Abs can be protective or potentially increase disease via Ab-dependent enhancement. DENV nonstructural protein 1 (NS1) has long been considered a vaccine candidate as it avoids Ab-dependent enhancement. In this study, we evaluated survival to challenge in a lethal DENV vascular leak model in mice immunized with NS1 combined with aluminum and magnesium hydroxide, monophosphoryl lipid A + AddaVax, or Sigma adjuvant system+CpG DNA, compared with mice infected with a sublethal dose of DENV2 and mice immunized with OVA (negative control)...
April 5, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28378782/global-evolutionary-history-and-spatio-temporal-dynamics-of-dengue-virus-type-2
#6
Kaifa Wei, Yuhan Li
DENV-2 spread throughout the tropical and subtropical regions globally, which is implicated in deadly outbreaks of DHF and DSS. Since dengue cases have grown dramatically in recent years, about half of the world's population is now at risk. Our timescale analysis indicated that the most recent common ancestor existed about 100 years ago. The rate of nucleotide substitution was estimated to be 8.94 × 10(-4) subs/site/year. Selection pressure analysis showed that two sites 160 and 403 were under positive selection, while E gene is mainly shaped by stronger purifying selection...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28367535/endemic-nephropathy-around-the-world
#7
REVIEW
Fiona J Gifford, Robert M Gifford, Michael Eddleston, Neeraj Dhaun
There have been several global epidemics of chronic kidney disease of unknown etiology (CKDu). Some, such as Itai-Itai disease in Japan and Balkan endemic nephropathy, have been explained, whereas the etiology of others remains unclear. In countries such as Sri Lanka, El Salvador, Nicaragua, and India, CKDu is a major public health problem and causes significant morbidity and mortality. Despite their geographical separation, however, there are striking similarities between these endemic nephropathies. Young male agricultural workers who perform strenuous labor in extreme conditions are the worst affected...
March 2017: KI Reports
https://www.readbyqxmd.com/read/28345666/members-of-gammaproteobacteria-as-indicator-species-of-healthy-banana-plants-on-fusarium-wilt-infested-fields-in-central-america
#8
Martina Köberl, Miguel Dita, Alfonso Martinuz, Charles Staver, Gabriele Berg
Culminating in the 1950's, bananas, the world's most extensive perennial monoculture, suffered one of the most devastating disease epidemics in history. In Latin America and the Caribbean, Fusarium wilt (FW) caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense (FOC), forced the abandonment of the Gros Michel-based export banana industry. Comparative microbiome analyses performed between healthy and diseased Gros Michel plants on FW-infested farms in Nicaragua and Costa Rica revealed significant shifts in the gammaproteobacterial microbiome...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28344900/temporal-patterns-and-geographic-heterogeneity-of-zika-virus-zikv-outbreaks-in-french-polynesia-and-central-america
#9
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/28335004/barriers-and-facilitators-for-institutional-delivery-among-poor-mesoamerican-women-a-cross-sectional-study
#10
Bernardo Hernandez, Danny V Colombara, Marielle C Gagnier, Sima S Desai, Annie Haakenstad, Casey Johanns, Claire R McNellan, Jennifer Nelson, Erin B Palmisano, Diego Ríos-Zertuche, Alexandra Schaefer, Paola Zúñiga-Brenes, Emma Iriarte, Ali H Mokdad
Professional skilled care has shown to be one of the most promising strategies to reduce maternal mortality, and in-facility deliveries are a cost-effective way to ensure safe births. Countries in Mesoamerica have emphasized in-facility delivery care by professionally skilled attendants, but access to good-quality delivery care is still lacking for many women. We examined the characteristics of women who had a delivery in a health facility and determinants of the decision to bypass a closer facility and travel to a distant one...
March 15, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28330443/influenza-and-respiratory-syncytial-virus-in-infants-study-iris-of-hospitalized-and-non-ill-infants-aged-1-year-in-four-countries-study-design-and-methods
#11
Mark G Thompson, Danielle R Hunt, Ali K Arbaji, Artan Simaku, Veronica L Tallo, Holly M Biggs, Carolyn Kulb, Aubree Gordon, Ilham Abu Khader, Silvia Bino, Marilla G Lucero, Eduardo Azziz-Baumgartner, Pat Shifflett, Felix Sanchez, Basima I Marar, Ilirjana Bakalli, Eric A F Simões, Min Z Levine, Jennifer K Meece, Angel Balmaseda, Tareq M Al-Sanouri, Majlinda Dhimolea, Joanne N de Jesus, Natalie J Thornburg, Susan I Gerber, Lionel Gresh
BACKGROUND: This multi-country prospective study of infants aged <1 year aims to assess the frequency of influenza virus and respiratory syncytial virus (RSV) infections associated with hospitalizations, to describe clinical features and antibody response to infection, and to examine predictors of very severe disease requiring intensive care. METHODS/DESIGN: We are enrolling a hospital-based cohort and a sample of non-ill infants in four countries (Albania, Jordan, Nicaragua, and the Philippines) using a common protocol...
March 22, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28295602/child-survival-revolutions-revisited-lessons-learned-from-bangladesh-nicaragua-rwanda-and-vietnam
#12
REVIEW
Lars Åke Persson, Anisur Rahman, Rodolfo Peña, Wilton Perez, Aimable Musafili, Dinh Phuong Hoa
Analysing child mortality may enhance our perspective on global achievements in child survival. We used data from surveillance sites in Bangladesh, Nicaragua and Vietnam and Demographic Health Surveys in Rwanda to explore the development of neonatal and under-five mortality. The mortality curves showed dramatic reductions over time, but child mortality in the four countries peaked during wars and catastrophes and was rapidly reduced by targeted interventions, multi-sectorial development efforts and community engagement CONCLUSION: Lessons learned from these countries may be useful when tackling future challenges, including persistent neonatal deaths, survival inequalities and the consequences of climate change and migration...
March 12, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28293542/whole-genome-sequence-and-phylogenetic-analysis-show-helicobacter-pylori-strains-from-latin-america-have-followed-a-unique-evolution-pathway
#13
Zilia Y Muñoz-Ramírez, Alfonso Mendez-Tenorio, Ikuko Kato, Maria M Bravo, Cosmeri Rizzato, Kaisa Thorell, Roberto Torres, Francisco Aviles-Jimenez, Margarita Camorlinga, Federico Canzian, Javier Torres
Helicobacter pylori (HP) genetics may determine its clinical outcomes. Despite high prevalence of HP infection in Latin America (LA), there have been no phylogenetic studies in the region. We aimed to understand the structure of HP populations in LA mestizo individuals, where gastric cancer incidence remains high. The genome of 107 HP strains from Mexico, Nicaragua and Colombia were analyzed with 59 publicly available worldwide genomes. To study bacterial relationship on whole genome level we propose a virtual hybridization technique using thousands of high-entropy 13 bp DNA probes to generate fingerprints...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28264259/out-of-amazonia-the-unexpected-trans-andean-distribution-of-i-cochranella-i-i-resplendens-i-lynch-and-duellman-1978-anura-centrolenidae
#14
Claudia Molina-Zuluaga, Estefany Cano, Adriana Restrepo, Marco Rada, Juan M Daza
The glassfrog genus Cochranella, with nine recognized species, is distributed in the lowlands and mid elevation of the Neotropical forests, from Nicaragua to Bolivia (Guayasamin et al. 2009; Twomey et al. 2014). Four species are trans-Andean-C. granulosa (Taylor 1949) occurs in the lowlands and mountains, at mid elevation, of Central America, C. litoralis (Ruiz-Carranza & Lynch 1996) and C. mache Guayasamin & Bonaccorso 2004 occur in the Pacific lowlands and the western cloud forests of Colombia and Ecuador, and C...
March 2, 2017: Zootaxa
https://www.readbyqxmd.com/read/28260529/implementing-a-vector-surveillance-response-system-for-chagas-disease-control-a-4-year-field-trial-in-nicaragua
#15
Kota Yoshioka, Doribel Tercero, Byron Pérez, Jiro Nakamura, Lenin Pérez
BACKGROUND: Chagas disease is one of the neglected tropical diseases (NTDs). International goals for its control involve elimination of vector-borne transmission. Central American countries face challenges in establishing sustainable vector control programmes, since the main vector, Triatoma dimidiata, cannot be eliminated. In 2012, the Ministry of Health in Nicaragua started a field test of a vector surveillance-response system to control domestic vector infestation. This paper reports the main findings from this pilot study...
March 6, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28254582/a-cross-sectional-epidemiological-study-of-domestic-animals-related-to-human-leptospirosis-cases-in-nicaragua
#16
Byron J Flores, Tania Pérez-Sánchez, Héctor Fuertes, Jessica Sheleby-Elías, José Luis Múzquiz, William Jirón, Christianne Duttmann, Nabil Halaihel
Leptospirosis is one of the most extended zoonosis worldwide and humans become infected most commonly through contact with the urine of carrier animals, either directly or via contaminated water or soil. The aim in this study was to analyse the epidemiological behaviour of Leptospira spp., from domestic animals around the sites of human leptospirosis cases in Nicaragua, from 2007 through 2013. We report the results of a cross-sectional epidemiological study with a non-probability sampling of blood (n=3050) and urine (n=299) from Domestic Animals (DA) around the sites of human leptospirosis cases in Nicaragua...
February 28, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28241898/environmental-factors-associated-with-childhood-norovirus-diarrhoea-in-le%C3%A3-n-nicaragua
#17
S Becker-Dreps, C C Cuthbertson, F Bucardo, J Vinje, M Paniagua, S Giebultowicz, F Espinoza, M Emch
Norovirus is detected in one in five diarrhoea episodes in children, yet little is known about environmental risk factors associated with this disease, especially in low-income settings. The objective of this study was to examine environmental risk factors, and spatial and seasonal patterns of norovirus diarrhoea episodes in children in León, Nicaragua. We followed a population-based cohort of children under age 5 years for norovirus diarrhoea over a 1-year period. At baseline, characteristics of each household were recorded...
February 28, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28231283/rapid-evolution-of-distinct-helicobacter-pylori-subpopulations-in-the-americas
#18
Kaisa Thorell, Koji Yahara, Elvire Berthenet, Daniel J Lawson, Jane Mikhail, Ikuko Kato, Alfonso Mendez, Cosmeri Rizzato, María Mercedes Bravo, Rumiko Suzuki, Yoshio Yamaoka, Javier Torres, Samuel K Sheppard, Daniel Falush
For the last 500 years, the Americas have been a melting pot both for genetically diverse humans and for the pathogenic and commensal organisms associated with them. One such organism is the stomach-dwelling bacterium Helicobacter pylori, which is highly prevalent in Latin America where it is a major current public health challenge because of its strong association with gastric cancer. By analyzing the genome sequence of H. pylori isolated in North, Central and South America, we found evidence for admixture between H...
February 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28228688/two-new-species-and-a-new-combination-in-protium-burseraceae-from-costa-rica
#19
Daniel Santamaría-Aguilar, Laura P Lagomarsino
Two new species of Protium (Burseraceae) are described and illustrated: Protium aguilariisp. nov., from the Pacific slope of the Osa Peninsula, Puntarenas Province, Costa Rica; and Protium hammeliisp. nov., from wet forests on the Caribbean slopes of Nicaragua and Costa Rica. In addition, Protium brenesiicomb. nov., is proposed as a new combination based on Trichilia brenesii, a name that was based on a specimen collected with flowers in the mountains near San Ramón, Alajuela Province, Costa Rica. It is compared with Protium costaricense, a similar species with which it has been confused for more than 90 years...
2017: PhytoKeys
https://www.readbyqxmd.com/read/28222925/linking-national-wood-consumption-with-global-biodiversity-and-ecosystem-service-losses
#20
Abhishek Chaudhary, L Roman Carrasco, Thomas Kastner
Identifying the global hotspots of forestry driven species, ecosystem services losses and informing the consuming nations of their environmental footprint domestically and abroad is essential to design demand side interventions and induce sustainable production methods. Here we first use countryside species area relationship model to project species extinctions of four vertebrate taxa (mammals, birds, amphibians and reptiles) due to forest land use in 174 countries. We combine the projected extinctions with a global database on the monetary value of ecosystem services provided by different biomes and with bilateral trade data of wood products to calculate species extinctions and ecosystem services losses inflicted by national wood consumption and international wood trade...
May 15, 2017: Science of the Total Environment
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