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https://www.readbyqxmd.com/read/28445628/characterization-of-four-latin-american-families-confirms-previous-findings-and-reveals-novel-features-of-acid-labile-subunit-als-deficiency
#1
Paula A Scaglia, Ana C Keselman, Débora Braslavsky, Lucía C Martucci, Liliana M Karabatas, Sabina Domené, Mariana L Gutiérrez, María G Ballerini, María G Ropelato, Angela Spinola-Castro, Adriana A Siviero-Miachon, Juliana Saito Tartuci, Sol Rodríguez Azrak, Rodolfo A Rey, Héctor G Jasper, Ignacio Bergadá, Horacio M Domené
OBJECTIVE: ALS deficiency (ACLSD), caused by inactivating mutations in both IGFALS gene alleles, is characterized by marked reduction of IGF-I and IGFBP-3 levels associated to mild growth retardation. The aim of this study was to expand the known phenotype and genetic characteristics of ACLSD by reporting data from four index cases and their families. DESIGN: Auxological data, biochemical and genetic studies were performed in four children diagnosed with ACLSD and all available relatives...
April 26, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28445173/hydroa-vacciniforme-like-lymphoma-in-tibetan-children-2-cases-and-a-literature-review
#2
Xiaoyan Zhang, Tingting Wang, Lin Wang
Hydroa vacciniforme-like lymphoma shows a marked predilection for the pediatric population, especially of Latin America and Asia. Here, we present 2 pediatric patients from Tibet of China, which is the first report happened in this area.
April 4, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28444004/relation-between-hiv-status-risky-sexual-behavior-and-mental-health-in-an-msm-sample-from-three-chilean-cities
#3
Fabiola Gómez, Jaime Barrientos, Manuel Cárdenas
Objective: To explore the association among HIV status; negative psychological symptoms (anxiety, depression, and hostility); and risky sexual behaviors (multiple sexual partners and unprotected sexual intercourse) in a Chilean sample of men who have sex with men (MSM). Methods: This study had a cross-sectional design and a sample of 325 MSM whose ages ranged from 18 to 64 years (mean: 30.8; standard deviation: 9.8). Association tests (chi-squared) and group mean comparisons (Student's t-tests and F-tests) were performed...
April 20, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28443985/zika-puzzle-in-brazil-peculiar-conditions-of-viral-introduction-and-dissemination-a-review
#4
Cristina Possas, Patricia Brasil, Mauro Ca Marzochi, Amilcar Tanuri, Reinaldo M Martins, Ernesto Ta Marques, Myrna C Bonaldo, Antonio Gp Ferreira, Ricardo Lourenço-de-Oliveira, Rita Maria R Nogueira, Patricia C Sequeira, Keyla Bf Marzochi, Akira Homma
This article discusses the peculiar conditions that favoured the unexpected introduction of Zika virus into the poorest northeastern region of Brazil in 2015, its speed of transmission to other Brazilian states, other Latin American countries and other regions, and the severity of related neurological disorders in newborns and adults. Contrasting with evidence that Zika had so far caused only mild cases in humans in the last six decades, the epidemiological scenario of this outbreak in Brazil indicates dramatic health effects: in 2015, an increase of 20-fold in notified cases of microcephaly and/or central nervous system (CNS) alterations suggestive of Zika congenital infection, followed by an exponential increase in 2016, with 2366 cumulative cases confirmed in the country by the end of December 2016...
May 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28443978/characterisation-of-the-vascular-pathology-in-sigmodon-hispidus-rodentia-cricetidae-following-experimental-infection-with-angiostrongylus-costaricensis-nematoda-metastrongylidae
#5
Danielle Ingrid Bezerra de Vasconcelos, Ester Maria Mota, Marcelo Pelajo-Machado
BACKGROUND: Angiostrongylus costaricensis is a nematode that causes human abdominal angiostrongyliasis, a disease found mainly in Latin American countries and particularly in Brazil and Costa Rica. Its life cycle involves exploitation of both invertebrate and vertebrate hosts. Its natural reservoir is a vertebrate host, the cotton rat Sigmodon hispidus. The adult worms live in the ileo-colic branches of the upper mesenteric artery of S. hispidus, causing periarteritis. However, there is a lack of data on the development of vasculitis in the course of infection...
May 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28443333/emulation-and-sensitivity-analysis-of-the-cmaq-model-for-a-uk-ozone-pollution-episode
#6
Andrew V Beddows, Nutthida Kitwiroon, Martin L Williams, Sean D Beevers
Gaussian process emulation techniques have been used for the first time with the CMAQ model, simulating the effects of input uncertainties on ozone and NO\textsubscript{2} output, to allow robust global sensitivity analysis (SA). A screening process ranked the effect of perturbations in 223 inputs, isolating the 30 most influential from emissions, boundary conditions (BCs) and reaction rates. CMAQ simulations of a July 2006 ozone pollution episode in the UK were made with input values for these variables plus ozone dry deposition velocity chosen according to a 576 point Latin hypercube design...
April 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28442105/towards-development-of-a-universal-dengue-vaccine-how-close-are-we
#7
REVIEW
Ee Leen Pang, Hwei-San Loh
Dengue has been ranked as one of the top emerging diseases in Asia and Latin America. Current epidemiological data may not even reflect the true burden of disease due to under-reported figures. Vector control programmes have failed to contain the disease and worst of all, no specific treatment is available at the moment. Thereby, this pushes the demand for a dengue vaccine as a long-term protective approach. Despite there are numerous vaccine candidates ahead, they could be held back by different aspects in promoting vaccine implementation...
March 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28441094/background-rates-of-disease-in-latin-american-children-from-a-rotavirus-vaccine-study
#8
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/28440878/an-alert-to-latin-america-current-human-papillomavirus-vaccination-trends-highlight-key-barriers-to-successful-implementation
#9
Angelica Nogueira-Rodrigues, Alexandra Bukowski, Eduardo Paulino, Jessica St Louis, Adriana Barrichello, Cinthya Sternberg, Markus A C Gifoni, Silvana Luciani, Paul E Goss
No abstract text is available yet for this article.
April 25, 2017: Cancer
https://www.readbyqxmd.com/read/28438281/predictors-of-positive-opinion-about-bach-flower-remedies-in-adults-from-three-latin-american-countries-an-exploratory-study
#10
Boris C Rodríguez-Martín, Melba Fallas-Durán, Barbara Gaitskell, Daniela Vega-Rojas, Paula Martínez-Chaigneau
The current study aimed to determine if positive opinions about BFR interacts with spirituality in adults from three Latin-American countries using a CHAID algorithm. Participants were 703 adults from Cuba (n = 319), Costa Rica (n = 252) and Chile (n = 132). PREDICTORS: demographic data, received information, received treatment, spirituality, dispositional optimism and willingness to use a placebo intervention were measured and analyzed. A supervised classification which included a training phase (n = 423) and a test phase (n = 280) was employed...
May 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/28437376/organizational-issues-structure-and-processes-of-care-in-257-icus-in-latin-america-a-study-from-the-latin-america-intensive-care-network
#11
Elisa Estenssoro, Leyla Alegría, Gastón Murias, Gilberto Friedman, Ricardo Castro, Nicolas Nin Vaeza, Cecilia Loudet, Alejandro Bruhn, Manuel Jibaja, Gustavo Ospina-Tascon, Fernando Ríos, Flavia R Machado, Alexandre Biasi Cavalcanti, Arnaldo Dubin, F Javier Hurtado, Arturo Briva, Carlos Romero, Guillermo Bugedo, Jan Bakker, Maurizio Cecconi, Luciano Azevedo, Glenn Hernandez
OBJECTIVE: Latin America bears an important burden of critical care disease, yet the information about it is scarce. Our objective was to describe structure, organization, processes of care, and research activities in Latin-American ICUs. DESIGN: Web-based survey submitted to ICU directors. SETTINGS: ICUs located in nine Latin-American countries. SUBJECTS: Individual ICUs. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Two hundred fifty-seven of 498 (52%) of submitted surveys responded: 51% from Brazil, 17% Chile, 13% Argentina, 6% Ecuador, 5% Uruguay, 3% Colombia, and 5% between Mexico, Peru, and Paraguay...
April 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28437160/meeting-report-of-the-xiv-international-small-bowel-transplant-symposium-summary-of-presentations-workshops-and-debates-from-a-comprehensive-meeting-on-intestinal-failure-rehabilitation-and-transplantation-buenos-aires-argentina-june-10-13-2015
#12
Gabriel E Gondolesi, Adriana Fernandez, Karolina M Burghardt, Scott Nowakowski, Stuart S Kaufman, Andreas Pascher, Diana Florescu, Phillip Ruiz, Rodrigo Vianna, Sara Clarke, Mihai Oltean, Martin Rumbo, George Mazariegos, Debra L Sudan, Douglas G Farmer
The 2015 meeting of the Intestinal Transplant Association was held in Buenos Aires, Argentina. This was the 14th International Small Bowel Transplant Symposium, and it was the first meeting organized as a joint venture of the Transplantation Society, the Intestinal Transplant Association, and the Argentinean Transplant Society (Sociedad Argentina de Trasplantes). Innovative aspects of the classic meeting format included workshops sessions, debates, and multicenter studies. This report highlights the most prominent scientific contributions and results of the first such symposium in a Latin American country...
April 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28435644/immunohistochemical-diagnosis-of-primary-cardiac-leiomyosarcoma-in-a-latin-american-patient
#13
Ruben Blachman-Braun, Carlos Manuel Aboitiz-Rivera, Alberto Aranda-Fraustro, Adrián Ransom-Rodríguez, Mario Enrique Baltazares-Lipp, Jorge Manuel Catrip-Torres, Jesús Octavio Martínez-Reding
Primary cardiac malignancies are rare entities. Although sarcomas enclosed the main group of malignant heart neoplasms, primary cardiac leiomyosarcomas are extremely rare and constitutes less than 8% of cardiac tumors. Leiomyosarcoma usually originates from the pulmonary veins and have a worm-like shaped structure. In this article, we present a case of a 40-year-old Hispanic man diagnosed with a cardiac tumor who underwent surgical resection, during pathological examination the tissue samples were consistent with a malignancy of mesenchymal origin that contained irregular bundles of spindle cells...
March 24, 2017: Rare Tumors
https://www.readbyqxmd.com/read/28435445/cardiometabolic-risk-factors-metabolic-syndrome-and-pre-diabetes-in-adolescents-in-the-sierra-region-of-ecuador
#14
Sharon L Casapulla, Cheryl A Howe, Gabriela Rosero Mora, Darlene Berryman, Mario J Grijalva, Edgar W Rojas, Masato Nakazawa, Jay H Shubrook
BACKGROUND: Excess weight (overweight and obesity) is the major modifiable risk factor for type 2 diabetes mellitus (T2DM) and other non-communicable diseases. However, excess weight may not be as predictive of diabetes risk as once thought. While excess weight and other obesity-related non-communicable diseases are of growing concern in low-middle income countries in Latin America, there is limited research on risk factors associated with T2DM in adolescents. This study investigated prevalence of overweight, obesity, prediabetes, diabetes and metabolic syndrome in adolescents in Ecuador...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28435013/modeling-chagas-disease-in-chile-from-vector-to-congenital-transmission
#15
Mauricio Canals, Dante Cáceres, Sergio Alvarado, Andrea Canals, Pedro E Cattan
Chagaś disease is a human health problem in Latin America. It is highly prevalent in northern Chile between the Arica-Parinacota and Coquimbo regions, with reported incidence of 3-11/100000 inhabitants and mortality of 0.3-0.4/100000. The interruption of vector transmission was reported in 1999 by means of the elimination of the primary vector, Triatoma infestans, from human dwellings, thus the epidemiologic dynamics of this disease should be modified. Here we model the dynamics of Chagaś disease based on previous models for vector and congenital transmission, propose a model that includes both transmission forms and perform simulations...
April 20, 2017: Bio Systems
https://www.readbyqxmd.com/read/28434968/cardiac-contractility-correction-strategies-applied-to-telemetry-data-from-a-hesi-sponsored-consortium
#16
Emmanuel Boulay, Michael K Pugsley, Vincent Jacquemet, Alain Vinet, Michael V Accardi, Maxim Soloviev, Eric Troncy, Jennifer M Doyle, Jennifer Beck Pierson, Simon Authier
INTRODUCTION: QT has a long history of heart rate (HR) correction but limited investigations have been undertaken to assess the impact of cardiovascular parameters on left ventricular (LV) contractility in drug safety testing. Cardiac contractility is affected by preload (Cyon-Frank-Starling law), afterload (Anrep effect) and HR (Bowditch effect). We evaluated multi-parameter correction methods to help with dP/dtmax interpretation. METHODOLOGY: Modeling was undertaken using data from dogs in single or double 4×4 Latin square studies...
April 20, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28434763/computer-aided-discovery-of-two-novel-chalcone-like-compounds-active-and-selective-against-leishmania-infantum
#17
Marcelo N Gomes, Laura M Alcântara, Bruno J Neves, Cleber C Melo-Filho, Lucio H Freitas-Junior, Carolina B Moraes, Rui Ma, Scott G Franzblau, Eugene Muratov, Carolina Horta Andrade
Leishmaniasis are infectious diseases caused by parasites of genus Leishmania that affect affects 12 million people in 98 countries mainly in Africa, Asia, and Latin America. Effective treatments for this disease are urgently needed. In this study, we present a computer-aided approach to investigate a set of 32 recently synthesized chalcone and chalcone-like compounds to act as antileishmanial agents. As a result, nine most promising compounds and three potentially inactive compounds were experimentally evaluated against Leishmania infantum amastigotes and mammalian cells...
April 4, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28434739/the-effect-of-conjugated-linoleic-acid-acetate-and-their-interaction-on-adipose-tissue-lipid-metabolism-in-nonlactating-cows
#18
N Urrutia, Y Ying, K J Harvatine
During biohydrogenation-induced milk fat depression, adipose tissue lipogenesis may be increased through nutrients spared from milk fat synthesis. However, the direct effect of trans-10, cis-12 conjugated linoleic acid (CLA) and the indirect effect of spared nutrients on adipose tissue lipogenesis during milk fat depression is not clear. The objective of this study was to determine the direct effect of CLA, spared acetate, and their interaction on adipose tissue lipogenesis using nonlactating dairy cows as an experimental model, which allows separation of the effect of CLA and nutrient sparing...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28434735/effects-of-graded-removal-of-lysine-from-an-intravenously-infused-amino-acid-mixture-on-lactation-performance-and-mammary-amino-acid-metabolism-in-lactating-goats
#19
C L Guo, Y T Li, X Y Lin, M D Hanigan, Z G Yan, Z Y Hu, Q L Hou, F G Jiang, Z H Wang
To investigate responses of milk protein synthesis and mammary AA metabolism to a graded decrease of postruminal Lys supply, 4 lactating goats fitted with jugular vein, mammary vein, and carotid artery catheters and transonic blood flow detectors on the external pudic artery were used in a 4 × 4 Latin square experiment. Goats were fasted for 24 h and then received a 9-h intravenous infusion of an AA mixture plus glucose. Milk yield was recorded and samples were taken in h 2 to 8 of the infusion period; a mammary biopsy was performed in the last hour...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28434727/short-term-effects-of-soybean-oil-supplementation-on-performance-digestion-and-metabolism-in-dairy-cows-fed-sugarcane-based-diets
#20
João Paulo P Rodrigues, Ricardo M de Paula, Luciana N Rennó, Marta M S Fontes, Andreia F Machado, Sebastião de C Valadares Filho, Pekka Huhtanen, Marcos I Marcondes
We aimed to quantify the productive and metabolic responses, and digestive changes in dairy cows fed various concentrations of soybean oil (SBO) in high-concentrate, sugarcane-based diets. Eight rumen-cannulated multiparous Holstein cows in mid lactation (574 ± 19.1 kg of body weight and 122 ± 6.9 d in milk), averaging 22.5 ± 1.22 kg/d of milk were assigned to replicated 4 × 4 Latin squares. The experimental period lasted 21 d as follows: 14 d for adaptation, followed by a sampling period from d 15 to 21...
April 20, 2017: Journal of Dairy Science
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