Serologic survey of West Nile virus in horses from Central-West, Northeast and Southeast Brazil.

abstract：:The number of visceral leishmaniasis (VL) cases has increased over the past 10 years in Brazil, especially in the North and Northeast regions of the country. The aim of this study was to evaluate the urbanisation of VL vectors in Barcarena, Pará, an area in northern Brazil where VL is endemic. Sandflies were captured ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira DM,Saraiva EM,Ishikawa EA,Sousa AA,Silva EO,Silva IM

更新日期：2011-12-01 00:00:00

abstract：:This paper examines the distribution and infection of Biomphalaria glabrata with Schistosoma mansoni in all aquatic snail habitats in a rural area in the state of Minas Gerais, Brazil, in relation to physico/biotic and behavioral factors. Snail and environmental surveys were carried out semi-annually between July 2001...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kloos H,Passos LK,Loverde P,Oliveira RC,Gazzinelli A

更新日期：2004-11-01 00:00:00

abstract：:The thymus is a central lymphoid organ, in which T cell precursors differentiate and generate most of the so-called T cell repertoire. Along with a variety of acute infectious diseases, we and others determined important changes in both microenvironmental and lymphoid compartments of the organ. For example, one major ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Savino W,de Moraes Mdo C,Barbosa SD,Da Fonseca EC,De Almeida VC,Hontebeyrie-Joscowicz M

更新日期：1992-01-01 00:00:00

abstract：:The Global Burden of Disease Study 2010 listed schistosomiasis among the leading 100 causes of death in Brazil, responsible for 3.6% of the estimated total of deaths globally. Eye and adnexa are very rarely affected by schistosomiasis mansoni, with limited documentation of ocular pathology in this setting. This short ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fidelis TAA,Brasileiro-Filho G,Santos HH,Vasconcelos-Santos DV,Parreiras PM,Coelho PMZ,Araujo N,Chaud MV,Lambertucci JR

更新日期：2019-01-01 00:00:00

abstract：:The biochemical pathways involved in nicotinamide adenine dinucleotide (NAD) biosynthesis converge at the enzymatic step catalysed by nicotinamide mononucleotide adenylyltransferase (NMNAT, EC: 2.7.7.1). The majority of NMNATs are assembled into homo-oligomeric states that comprise 2-6 subunits. Recently, the NMNAT of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Contreras-Rodríguez LE,Marin-Mogollon CY,Sánchez-Mejía LM,Ramírez-Hernández MH

更新日期：2018-07-10 00:00:00

abstract：:In this study, IgA1 levels in the milk and serum of puerperae were compared and a correlation was established between the levels of this immunoglobulin and the occurrence of parasitism. Eighty-three paired milk and serum samples were obtained from puerperal and IgA1 levels were analyzed. In addition, the presence of i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Manhani MN,Cruz JM,Ferreira DM,Abdallah VO,Souza MA

更新日期：2008-08-01 00:00:00

abstract：:Trypanosoma cruzi acute infections often go unperceived, but one third of chronically infected individuals die of Chagas disease, showing diverse manifestations affecting the heart, intestines, and nervous systems. A common denominator of pathology in Chagas disease is the minimal rejection unit, whereby parasite-free...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Teixeira AR,Nascimento RJ,Sturm NR

更新日期：2006-08-01 00:00:00

abstract：:Since the 1940s, French Guiana has implemented vector control to contain or eliminate malaria, yellow fever, and, recently, dengue, chikungunya, and Zika. Over time, strategies have evolved depending on the location, efficacy of the methods, development of insecticide resistance, and advances in vector control techniq...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Epelboin Y,Chaney SC,Guidez A,Habchi-Hanriot N,Talaga S,Wang L,Dusfour I

更新日期：2018-03-12 00:00:00

abstract：:The anesthetic effect of some water-soluble anesthesic or narcotic drugs currently used in mice was tested in molluscs of the Biomphalaria genus. Sodium thiopental was very toxic to the snails resulting in high rates of mortality in all the treatment schedules tested. Cetamine base, at concentration of 0.25 mg/ml of w...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Martins-Sousa R,Negrão-Corrêa D,Bezerra F,Coelho P

更新日期：2001-04-01 00:00:00

abstract：:The authors investigated the distribution of lectin receptors on Trypanosoma cruzi blood forms collected from mice inoculated with, respectively, the drug-resistant and drug-sensitive strains VL-10 and CL, and treated with the two standard active nitroheterocyclic compounds nifurtimox and benznidazole used for treatme...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fontes G,Romanha AJ,Pereira ME,Brener Z

更新日期：1991-07-01 00:00:00

abstract：:An overview is presented of the results obtained with biodegradable sustained release devices (SRDs) containing a mixture of polymers and either isometamidium (ISMM) or ethidium. Under controlled laboratory conditions (monthly challenge with tsetse flies infected with Trypanosoma congolense) the protection period in S...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Geerts S,Brandt J,De Deken R

更新日期：1999-03-01 00:00:00

abstract：:Many lines of Plasmodium falciparum undergo a deletion of the right end of chromosome 9 during in vitro culture accompanied by loss of cytoadherence and gametocytogenesis. Selection of cytoadherent cells from a mixed population co-selects for those with an undeleted chromosome 9 and the selected cells produce gametocy...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kemp DJ,Thompson J,Barnes DA,Triglia T,Karamalis F,Petersen C,Brown GV,Day KP

更新日期：1992-01-01 00:00:00

abstract：BACKGROUND:CD64 (FcγR1) is a high-affinity receptor for monomeric IgG1 and IgG3. Circulating neutrophils express very low amounts of CD64 on their surface. OBJECTIVES:Our primary aim was to investigate the utility of neutrophil CD64 surface expression as a biomarker of active pulmonary tuberculosis (TB). We hypothesis...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Corrêa RDS,Rodrigues LS,Pereira LHL,Nogueira OC,Leung J,Sousa MDS,Hacker MA,Siqueira HR,Capone D,Alves RLR,Pessolani MCV,Schmitz V,Pereira GMB

更新日期：2019-01-01 00:00:00

abstract：:The aim of the present study was to identify specific markers that mirror liver fibrosis progression as an alternative to biopsy when biopsy is contraindicated, especially in children. After liver biopsies were performed, serum samples from 30 hepatitis C virus (HCV) paediatric patients (8-14 years) were analysed and ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Nassef YE,Shady MM,Galal EM,Hamed MA

更新日期：2013-11-01 00:00:00

abstract：:To study the action of molluscicide nine ponds were selected: 3 of them lying in Maruim municipality, 29 km far from north Aracaju, the State capital, and 6 ponds in Itabaianinha municipality, 118 km far from south Aracaju. This study was carried out for 16 months. Environmental parameters observed were those thought ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rosas E,Ribeiro EC

更新日期：1987-01-01 00:00:00

abstract：:The presence of tRNA array, a region with high tRNA gene number and density, has been demonstrated in Mycobacterium genus. However, a recent phylogenomic study revealed the existence of five distinct monophyletic groups (genera) within this genus. Considering this new scenario, and based on in-silico analyses, we have...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Morgado SM,Vicente ACP

更新日期：2019-01-01 00:00:00

abstract：:The recommended treatment for latent tuberculosis (TB) infection in adults is a daily dose of isoniazid (INH) 300 mg for six months. In Brazil, INH was formulated as 100 mg tablets. The treatment duration and the high pill burden compromised patient adherence to the treatment. The Brazilian National Programme for Tube...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Daher A,Pitta L,Santos T,Barreira D,Pinto D

更新日期：2015-06-01 00:00:00

abstract：:Acute infection with Trypanosoma cruzi results in intense myocarditis, which progresses to a chronic, asymptomatic indeterminate form. The evolution toward this chronic cardiac form occurs in approximately 30% of all cases of T. cruzi infection. Suppression of delayed type hypersensitivity (DTH) has been proposed as a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Thé TS,Portella RS,Guerreiro ML,Andrade SG

更新日期：2013-09-01 00:00:00

abstract：:Aedes albifasciatus is an important common mosquito in Central Argentina. It is a confirmed vector of the Western Equine Encephalitis and is responsible for loss of milk production in dairy cattle during peak populations. This paper reports the flight activity pattern of Ae. albifasciatus for different seasons, in the...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Almeida FF,Gorla DE

更新日期：1995-09-01 00:00:00

abstract：:The ultrastructure of endogenous stages of Eimeria ninakohlyakimovae was observed in epithelial cells of cecum and colon crypts from a goat experimentally infected with 2.0 x 10(5) oocysts/kg. The secondary meronts developed above the nucleus of the host cell. The nucleus first divides and merozoites then form on the ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Vieira LS,Lima JD,Ribeiro MF,Bozzi IA,Camargos ER

更新日期：1997-07-01 00:00:00

abstract：:To compare the epidemiological profile and socioeconomic factors associated to the infection by Schistosoma mansoni in a rural and an urban endemic area a cross-sectional study was performed in Agua Branca de Minas (rural area) and Bela Fama (urban area), both situated in the State of Minas Gerais, Brazil. Two hundred...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Amorim MN,Rabello A,Contreras RL,Katz N

更新日期：1997-09-01 00:00:00

abstract：:Iron is essential for all organisms and its availability can control the growth of microorganisms; therefore, we examined the role of iron metabolism in multibacillary (MB) leprosy, focusing on the involvement of hepcidin. Erythrograms, iron metabolism parameters, pro-inflammatory cytokines and urinary hepcidin levels...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Souza VN,Malaspina TS,Campanelli AP,Ghidella C,Ura S,Dalpino D,do Nascimento DC,Latini AC

更新日期：2012-12-01 00:00:00

abstract：:This study sought the characterization of rotaviruses in a trial with a tetravalent rhesus-human rotavirus vaccine in Belém, Brazil in children who received three doses of vaccine or placebo in the 1st, 3rd and 5th months of life. Rotavirus electropherotypes, subgroups, G serotypes, G, [P] and [P], G genotypes were de...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mascarenhas JD,Linhares AC,Gabbay YB,Leite JP

更新日期：2002-01-01 00:00:00

abstract：:Calomys callosus, Rengger 1830 (Rodentia, Cricetidae), a wild rodent found in Central Brazil, was studied to investigate its susceptibility to Toxoplasma gondii experimental infection and its humoral immune response against this protozoa. The electrophoretic profile of the serum proteins of C. callosus showed that IgG...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Favoreto-Júnior S,Ferro EA,Clemente D,Silva DA,Mineo JR

更新日期：1998-01-01 00:00:00

abstract：:An epidemic of sporotrichosis, a subcutaneous mycosis caused by the fungus Sporothrix schenckii, is ongoing in Rio de Janeiro, Brazil, in which cases of human infection are related to exposure to cats. In an attempt to demonstrate the zoonotic character of this epidemic using molecular methodology, we characterised by...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Reis RS,Almeida-Paes R,Muniz Mde M,Tavares PM,Monteiro PC,Schubach TM,Gutierrez-Galhardo MC,Zancopé-Oliveira RM

更新日期：2009-08-01 00:00:00

abstract：:Infusions of Aspidosperma nitidum (Apocynaceae) wood bark are used to treat fever and malaria in the Amazon Region. Several species of this family are known to possess indole alkaloids and other classes of secondary metabolites, whereas terpenoids, an inositol and the indole alkaloids harmane-3 acid and braznitidumine...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coutinho JP,Aguiar AC,dos Santos PA,Lima JC,Rocha MG,Zani CL,Alves TM,Santana AE,Pereira Mde M,Krettli AU

更新日期：2013-12-01 00:00:00

abstract：:The authors describe and compare the morphological and ultrastructural characteristics of eggs from the three most recent described species of the genus Rhodnius Stål, 1859, which have not previously been studied. These species are Rhodnius colombiensis (Mejia, Galvão & Jurberg 1999), Rhodnius milesi (Carcavallo, Roch...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Santos CM,Jurberg J,Galvão C,Rosa JA,Júnior WC,Barata JM,Obara MT

更新日期：2009-11-01 00:00:00

abstract：:Scientists have increasingly recognised that low methodological and analytical rigour combined with publish-or-perish incentives can make the published scientific literature unreliable. As a response to this, large-scale systematic replications of the literature have emerged as a way to assess the problem empirically....

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Neves K,Carneiro CF,Wasilewska-Sampaio AP,Abreu M,Valério-Gomes B,Tan PB,Amaral OB

更新日期：2020-10-23 00:00:00

abstract：:This paper presents the morphological, histological and ultrastructural characteristics of Myxobolus oliveirai sp. nov., a parasite of the gill filaments in Brycon hilarii from the Brazilian Pantanal. Out of 216 B. hilariispecimens examined (126 wild and 90 cultivated), 38.1% of wild specimens (n = 48) were infected. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Milanin T,Eiras JC,Arana S,Maia AA,Alves AL,Silva MR,Carriero MM,Ceccarelli PS,Adriano EA

更新日期：2010-09-01 00:00:00

abstract：:Goats from the Venezuelan northern arid zones were found infested by the following nematodes: Haemonchus contortus, Trichostrongylus axei, T. colubriformis, Cooperia curticei, Oesophagostomum columbianum, Skrjabinema ovis y Trichuris globulosa. The Shannon-Weaver index of diversity values oscillated between 0.045 and ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Morales G,Pino LA,Aldana E,Perdomo L,Molina E

更新日期：1986-04-01 00:00:00