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Leandra Linhares-Lacerda, Alessandra Granato, João Francisco Gomes-Neto, Luciana Conde, Leonardo Freire-de-Lima, Elisangela O de Freitas, Celio G Freire-de-Lima, Shana P Coutinho Barroso, Rodrigo Jorge de Alcântara Guerra, Roberto C Pedrosa, Wilson Savino, Alexandre Morrot
Chagas cardiomyopathy is the most severe clinical manifestation of chronic Chagas disease. The disease affects most of the Latin American countries, being considered one of the leading causes of morbidity and death in the continent. The pathogenesis of Chagas cardiomyopathy is very complex, with mechanisms involving parasite-dependent cytopathy, immune-mediated myocardial damage and neurogenic disturbances. These pathological changes eventually result in cardiac myocyte hypertrophy, arrhythmias, congestive heart failure and stroke during chronic infection phase...
2018: Frontiers in Microbiology
Anne C G Almeida, Andrea Kuehn, Arthur J M Castro, Sheila Vitor-Silva, Erick F G Figueiredo, Larissa W Brasil, Marcelo A M Brito, Vanderson S Sampaio, Quique Bassat, Ingrid Felger, Wanderli P Tadei, Wuelton M Monteiro, Ivo Mueller, Marcus V G Lacerda
BACKGROUND: Population-based studies conducted in Latin America have shown a high proportion of asymptomatic and submicroscopic malarial infections. Considering efforts aiming at regional elimination, it is important to investigate the role of this asymptomatic reservoir in malaria transmission in peri-urban areas. This study aimed to estimate the prevalence of Plasmodium spp. and gametocyte burden on symptomatic and asymptomatic infections in the Brazilian Amazon. RESULTS: Two cross-sectional household surveys (CS) were conducted including all inhabitants in a peri-urban area of Manaus, western Amazonas State, Brazil...
March 20, 2018: Parasites & Vectors
J S Gomes, A P Trevizol, D V Ducos, A Gadelha, B B Ortiz, A O Fonseca, H T Akiba, C C Azevedo, L S P Guimaraes, P Shiozawa, Q Cordeiro, A Lacerda, A M Dias
Background: The lack of efficacy of pharmacological treatments for cognitive and negative symptoms in schizophrenia highlights the need for new interventions. We investigated the effects of tDCS on working memory and negative symptoms in patients with schizophrenia. Method: Double-blinded, randomized, sham-controlled clinical trial, investigating the effects of 10 sessions of tDCS in schizophrenia subjects. Stimulation used 2 mA, for 20 min, with electrodes of 25 cm2 wrapped in cotton material soaked in saline solution...
June 2018: Schizophrenia Research. Cognition
Fernanda Corrêa Leal Penido, Fernanda Barbosa Piló, Sávio Henrique de Cicco Sandes, Álvaro Cantini Nunes, Gecernir Colen, Evelyn de Souza Oliveira, Carlos Augusto Rosa, Inayara Cristina Alves Lacerda
Sour cassava starch (Polvilho azedo) is obtained from a spontaneous fermentation conducted by microorganisms from raw materials and fermentation tanks. This product is traditionally used in the baking industry for the manufacture of biscuits and Brazilian cheese breads. However, the end of fermentation is evaluated empirically, and the process occurs without standardization, which results in products of inconsistent quality. Predominant microbiota from a cassava flour manufacturer was isolated in order to select starter cultures for the production of sour cassava starch in a pilot-scale fermentation process...
February 28, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
Gonçalo Forjaz de Lacerda, Scott P Kelly, Joana Bastos, Clara Castro, Alexandra Mayer, Angela B Mariotto, William F Anderson
BACKGROUND: Female breast cancer incidence rates have been increasing in Portugal for years. We, therefore, conducted the first nationwide breast cancer study to assess regional differences. METHODS: Cases were obtained from population-based cancer registries covering the country's Mainland (South, North, Centre), as well as the two Autonomous Regions (Azores and Madeira), for the time-period 1998 through 2011. Analyses were restricted to ages 30-84 years and stratified by region...
March 12, 2018: Cancer Epidemiology
Caroline C Kingdon, Erinna W Bowman, Hayley Curran, Luis Nacul, Eliana M Lacerda
BACKGROUND: People with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) continue to struggle to have their condition recognised as disabling in the face of public and professional prejudice and discrimination. OBJECTIVE: The aim of this study was to compare the functional status and well-being of people with well-characterised ME/CFS with people with multiple sclerosis (PWMS), as well as healthy controls (HCs). METHODS: In this cross-sectional study, we used data collected as part of the UK ME/CFS Biobank to compare actual participant scores from the Medical Outcomes Survey Short Form-36 v2™ (SF-36v2™) between groups, as a proxy for impact of disability, and from a bespoke questionnaire seeking data on employment and income...
March 13, 2018: PharmacoEconomics Open
Gustavo Assis de Paula, Guilherme Carvalho Silva, Ênio Lacerda Vilaça, Tulimar Machado Cornacchia, Cláudia Silami de Magalhães, Allyson Nogueira Moreira
PURPOSE: Biomechanical behavior of tooth-implant-supported prostheses (TISPs) with external and internal implants was compared. MATERIALS AND METHODS: Two 3-D models of TISP were designed by varying the implant: external (Model EH) and internal hexagons (Model IH). After loading, von Mises stresses were obtained in implants, abutments, and screws. Principal maximum (σmax) and minimum (σmin) stresses were analyzed in periodontal ligament (PL), alveolar bone, and periimplant bone...
March 7, 2018: Implant Dentistry
Ludmila Vilela Resende, Leticia Kleinhans Pinheiro, Maria Gabriela da Cruz Pedroso Miguel, Cíntia Lacerda Ramos, Danielle Marques Vilela, Rosane Freitas Schwan
The microbial community of artisanal corn fermentation called Chicha were isolated, purified and then identified using protein profile by Matrix Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF) and confirmed by partial ribosomal gene sequencing. Samples from Chicha beverage were chemically characterized by gas and liquid chromatography (HPLC and GC-MS). Aerobic mesophilic bacteria (AMB) (35.8% of total of isolated microorganisms), lactic acid bacteria (LAB) (21.6%) and yeast (42...
March 8, 2018: World Journal of Microbiology & Biotechnology
V G C Ribeiro, V A Mendonça, A L C Souza, S F Fonseca, A C R Camargos, V K S Lage, C D C Neves, J M Santos, L A C Teixeira, E L M Vieira, A L Teixeira Junior, B Mezêncio, J S C Fernandes, H R Leite, J R Poortmans, A C R Lacerda
The aims of this study were 1) to characterize the intensity of the vibration stimulation in women diagnosed with fibromyalgia (FM) compared to a control group of healthy women (HW) matched by age and anthropometric parameters, and 2) to investigate the effect of a single session of whole body vibration (WBV) on inflammatory responses. Levels of adipokines, soluble tumor necrosis factor receptors (sTNFr1, sTNFr2), and brain-derived neurotrophic factor (BDNF) were determined by enzyme-linked immunosorbent assay...
March 1, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
Djane Clarys Baia-da-Silva, Luis Carlos Salazar Alvarez, Omaira Vera Lizcano, Fabio Trindade Maranhão Costa, Stefanie Costa Pinto Lopes, Alessandra Silva Orfanó, Denner Oliveira Pascoal, Rafael Nacif-Pimenta, Iria Cabral Rodriguez, Maria das Graças Vale Barbosa Guerra, Marcus Vinicius Guimarães Lacerda, Nagila Francinete Costa Secundino, Wuelton Marcelo Monteiro, Paulo Filemon Paolucci Pimenta
BACKGROUND: Plasmodium vivax is predominant in the Amazon region, and enhanced knowledge of its development inside a natural vector, Anopheles aquasalis, is critical for future strategies aimed at blocking parasite development. The peritrophic matrix (PM), a chitinous layer produced by the mosquito midgut in response to blood ingestion, is a protective barrier against pathogens. Plasmodium can only complete its life-cycle, and consequently be transmitted to a new host, after successfully passing this barrier...
March 6, 2018: Parasites & Vectors
Maria Cecília Freire de Melo, Thuanny Silva de Macedo, Julianelly Alves Biserra, Karina Luz Cavalcanti Rodrigues, Mônica Cruz, Aurora Karla de Lacerda Vidal
AIM: To report a case of a pediatric patient carrier of myelodysplastic syndrome (MDS) with severe oral infectious disease, in which antimicrobial photodynamic therapy (aPDT) was used as a therapeutic choice to support systemic treatment. METHODS AND RESULTS: This case report refers to a 1-year-old male patient with MDS and hospitalized for investigation and treatment of complications at a Pediatric Oncology and Hematology Center in Recife/PE, Brazil. The intraoral examination revealed a violaceous lesion surrounding the lower incisor teeth, which progressed with alteration of color to milky yellowish white, compromising the entire lower gingival border, leading to tooth mobility and consequent loss of teeth 71 and 81...
March 6, 2018: Special Care in Dentistry
P W Crous, M J Wingfield, T I Burgess, A J Carnegie, G E St J Hardy, D Smith, B A Summerell, J F Cano-Lira, J Guarro, J Houbraken, L Lombard, M P Martín, M Sandoval-Denis, A V Alexandrova, C W Barnes, I G Baseia, J D P Bezerra, V Guarnaccia, T W May, M Hernández-Restrepo, A M Stchigel, A N Miller, M E Ordoñez, V P Abreu, T Accioly, C Agnello, A Agustin Colmán, C C Albuquerque, D S Alfredo, P Alvarado, G R Araújo-Magalhães, S Arauzo, T Atkinson, A Barili, R W Barreto, J L Bezerra, T S Cabral, F Camello Rodríguez, R H S F Cruz, P P Daniëls, B D B da Silva, D A C de Almeida, A A de Carvalho Júnior, C A Decock, L Delgat, S Denman, R A Dimitrov, J Edwards, A G Fedosova, R J Ferreira, A L Firmino, J A Flores, D García, J Gené, A Giraldo, J S Góis, A A M Gomes, C M Gonçalves, D E Gouliamova, M Groenewald, B V Guéorguiev, M Guevara-Suarez, L F P Gusmão, K Hosaka, V Hubka, S M Huhndorf, M Jadan, Ž Jurjević, B Kraak, V Kučera, T K A Kumar, I Kušan, S R Lacerda, S Lamlertthon, W S Lisboa, M Loizides, J J Luangsa-Ard, P Lysková, W P Mac Cormack, D M Macedo, A R Machado, E F Malysheva, P Marinho, N Matočec, M Meijer, A Mešić, S Mongkolsamrit, K A Moreira, O V Morozova, K U Nair, N Nakamura, W Noisripoom, I Olariaga, R J V Oliveira, L M Paiva, P Pawar, O L Pereira, S W Peterson, M Prieto, E Rodríguez-Andrade, C Rojo De Blas, M Roy, E S Santos, R Sharma, G A Silva, C M Souza-Motta, Y Takeuchi-Kaneko, C Tanaka, A Thakur, M Th Smith, Z Tkalčec, N Valenzuela-Lopez, P van der Kleij, A Verbeken, M G Viana, X W Wang, J Z Groenewald
Novel species of fungi described in this study include those from various countries as follows: Antarctica : Cadophora antarctica from soil. Australia : Alfaria dandenongensis on Cyperaceae , Amphosoma persooniae on Persoonia sp., Anungitea nullicana on Eucalyptus sp . , Bagadiella eucalypti on Eucalyptus globulus , Castanediella eucalyptigena on Eucalyptus sp., Cercospora dianellicola on Dianella sp., Cladoriella kinglakensis on Eucalyptus regnans , Cladoriella xanthorrhoeae (incl. Cladoriellaceae fam. nov...
December 2017: Persoonia
José R Sandoval, Daniela R Lacerda, Marilza S Jota, Ronald Elward, Oscar Acosta, Donaldo Pinedo, Pierina Danos, Cinthia Cuellar, Susana Revollo, Fabricio R Santos, Ricardo Fujita
This study focuses on the descendants of the royal Inka family. The Inkas ruled Tawantinsuyu, the largest pre-Columbian empire in South America, which extended from southern Colombia to central Chile. The origin of the royal Inkas is currently unknown. While the mummies of the Inka rulers could have been informative, most were destroyed by Spaniards and the few remaining disappeared without a trace. Moreover, no genetic studies have been conducted on present-day descendants of the Inka rulers. In the present study, we analysed uniparental DNA markers in 18 individuals predominantly from the districts of San Sebastian and San Jerónimo in Cusco (Peru), who belong to 12 families of putative patrilineal descent of Inka rulers, according to documented registries...
March 3, 2018: Molecular Genetics and Genomics: MGG
Shirley Moreira Alves, Raul Sousa Freitas, Danielle Rocha do Val, Lorena Vasconcelos Vieira, Ellen Lima de Assis, Francisco Isaac Fernandes Gomes, Carlos Alberto de Almeida Gadelha, Tatiane Santi Gadelha, José Thalles Jocelino Gomes de Lacerda, Juliana Trindade Clemente-Napimoga, Vicente de Paulo Teixeira Pinto, Gerardo Cristino Filho, Mirna Marques Bezerra, Hellíada Vasconcelos Chaves
Abelmoschus esculentus is largely cultivated in Northeastern Brazil for medicinal purposes, e.g. inflammatory conditions. This study aimed to evaluate the efficacy of Abelmoschus esculentus lectin (AEL) in reducing formalin-induced temporomandibular joint inflammatory hypernociception in rats. The behavioral experiments were performed in male Wistar rats (180-240 g). Rats were pre-treated (i.v.) with AEL (0.001, 0.01 or 0.1 mg/kg) 30 min before formalin injection ( To analyze the possible effect of opioid pathways on AEL efficacy, animals were pre-treated with naloxone or CTOP (μ opioid receptor antagonist), naltrindole (δ opioid receptor antagonist) or nor-binaltorphimine (κ opioid receptor antagonist) (i...
March 1, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Rodrigo Barros, Gabriel Lacerda, Alex Schul, Paulo Ornellas, Leandro Koifman, Luciano A Favorito
OBJECTIVES: Evaluate the demographic data, etiology, operative findings and results of surgical treatment of penile fracture (PF) in men who have sex with men(MSM) with emphasis on sexual complications. MATERIALS AND METHODS: We studied 216 patients underwent surgical correction of PF at our hospital. Patients self-identified as MSM were followed for at least 6 months. Demographic data, presentation, operative findings, International Index of Erection Function - 5 (IIEF-5) and the Premature Ejaculation Diagnostic Tool...
March 1, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Anderson da Silva Souza, Jacqueline de Almeida Gonçalves Sachett, João Arthur Alcântara, Monique Freire, Maria das Graças Costa Alecrim, Marcus Lacerda, Luiz Carlos de Lima Ferreira, Hui Wen Fan, Vanderson de Souza Sampaio, Wuelton Marcelo Monteiro
Snake envenoming represents a major burden for public health worldwide. In the Amazon, the official number of cases and deaths detected is probably underestimated because of the difficulty riverine and indigenous populations have reaching health centers in order to receive medical assistance. Thus, integrated analysis of health information systems must be used in order to improve adequate health policies. The aim of this work is to describe a series of deaths and identify risk factors for lethality from snakebites in the state of Amazonas, Brazil...
February 25, 2018: Toxicon: Official Journal of the International Society on Toxinology
Carla Regina Bianchi Codo, Jamil Pedro de Siqueira Caldas, Rafaella Regina Alves Peixoto, Vitor Lacerda Sanches, Tamara Cristina Guiraldelo, Solange Cadore, Sérgio Tadeu Martins Marba
OBJECTIVE: To determine and compare the concentrations of electrolytes and minerals in three different types of maternal milk samples: term donor milk before pasteurization, term donor milk after pasteurization and raw milk of mothers of preterm newborns at bedside. METHODS: Descriptive cross-sectional study. Concentrations of calcium (Ca), phosphorous (P), magnesium (Mg), sodium (Na) and potassium (K) were measured in random samples of three human breast milk groups...
February 22, 2018: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
Mark H T Stappers, Alexandra E Clark, Vishukumar Aimanianda, Stefan Bidula, Delyth M Reid, Patawee Asamaphan, Sarah E Hardison, Ivy M Dambuza, Isabel Valsecchi, Bernhard Kerscher, Anthony Plato, Carol A Wallace, Raif Yuecel, Betty Hebecker, Maria da Glória Teixeira Sousa, Cristina Cunha, Yan Liu, Ten Feizi, Axel A Brakhage, Kyung J Kwon-Chung, Neil A R Gow, Matteo Zanda, Monica Piras, Chiara Zanato, Martin Jaeger, Mihai G Netea, Frank L van de Veerdonk, João F Lacerda, António Campos, Agostinho Carvalho, Janet A Willment, Jean-Paul Latgé, Gordon D Brown
Resistance to infection is critically dependent on the ability of pattern recognition receptors to recognize microbial invasion and induce protective immune responses. One such family of receptors are the C-type lectins, which are central to antifungal immunity. These receptors activate key effector mechanisms upon recognition of conserved fungal cell-wall carbohydrates. However, several other immunologically active fungal ligands have been described; these include melanin, for which the mechanism of recognition is hitherto undefined...
February 28, 2018: Nature
Avik Basu, Carla Lacerda, Zhaoming He
The Tricuspid valve (TV) annulus is a transition structure from the leaflets to the myocardium, with 3 different annulus segments corresponding to the TV leaflets, which includes both basal leaflets and bordering myocardium. The objective of this study was to understand TV annulus mechanical properties and correlate it to the biological composition. The uniaxial testing of the annulus segments from ten porcine TVs was performed to measure Young's modulus (E) and extensibility (εT ). Western blotting and histology were executed...
February 26, 2018: Cardiovascular Engineering and Technology
Maíra Barcellos Marini, William Rodrigues de Freitas, Fernanda Lacerda da Silva Machado, Ivana Correa Ramos Leal, Angélica Ribeiro Soares, Milton Masahiko Kanashiro, Michelle Frazão Muzitano
Red algae of the genus Laurencia J. V. Lamouroux are found in tropical and subtropical regions throughout the world and are an extremely rich source of active secondary metabolites with diverse structural features. In the present study, 6 sesquiterpenes (obtusol, (-)-elatol, dendoidiol, debrome-elatol, triquinane, and obtusane) isolated from Laurencia dendroidea were investigated for their cytotoxicity, using 4 cancer cell lines (U937, Jurkat, B16F10, and Colo-205). Among all sesquiterpenes tested, obtusol and (-)-elatol showed a promising activity in the treatment of Colo-205 strain, with IC50 of 1...
February 26, 2018: Phytotherapy Research: PTR
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