Prevalence of human T cell leukemia virus-I (HTLV-I) antibody among populations living in the Amazon region of Brazil (preliminary report).

abstract：:Lymphatic filariasis caused by nematode parasites Wuchereria bancrofti or Brugia malayi is a spectral disease and produces wide range of immune responses and varying levels of microfilaraemia in infected individuals. The relationship between the immune response of host and the developmental stage of the parasite as we...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Athisaya Mary K,Hoti S,Paily K

更新日期：2006-05-01 00:00:00

abstract：:Acute Chagas disease (ACD) has a distinct epidemiological profile in the Amazon Region, with cases and outbreaks of Trypanosoma cruzi infection being possibly related to the ingestion of contaminated food. Data on ACD in the state of Pará retrieved from 2000 to 2016 from the Brazilian Notifiable Diseases Information S...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Santos VRCD,Meis J,Savino W,Andrade JAA,Vieira JRDS,Coura JR,Junqueira ACV

更新日期：2018-01-01 00:00:00

abstract：:BACKGROUND Chagas disease, resulting from Trypanosoma cruzi infections, continues to be a health concern mainly in Latin American countries where the parasite is endemic. The laboratory diagnosis of a chronic infection is determined through serological assays for antibodies against T. cruzi and several tests are avail...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sáez-Alquezar A,Junqueira ACV,Durans ADM,Guimarães AV,Corrêa JA,Provance DW Jr,Cabello PH,Coura JR,Viñas PA

更新日期：2020-01-01 00:00:00

abstract：:This study was undertaken to investigate the prevalence of Mansonella ozzardi infection and to estimate the parasitic infection rate (PIR) in simuliid black flies in the municipality of Pauini, Amazonas, Brazil. We used thick blood films to examine 921 individuals in 35 riverine communities along the Pauini and Purus ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Medeiros JF,Py-Daniel V,Barbosa UC,Izzo TJ

更新日期：2009-02-01 00:00:00

abstract：:Sixteen species of ectoparasites were collected from 50 wild rodents, from August 1990 to August 1991, in an area of Araucaria augustifolia forest, in the municipality of Tijucas do Sul, State of Paraná, Brazil. Ectoparasites infested 98% of the rodents, with the highest indices of infestation found in the drycool sea...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barros-Battesti DM,Arzua M,Linardi PM,Botelho JR,Sbalqueiro IJ

更新日期：1998-11-01 00:00:00

abstract：:Fifty specimens of five strains (10 per strain) of Helisoma duryi from Lima (Peru), St. Croix (Virgin Islands), Formosa (Brazil), Cartago (Costa Rica) and St. Vincent (Lesser Antilles), reared in isolation for about 150 days, laid 103 eggs. The numbers of eggs laid by the 10 specimens of each strain were respectively ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Paraense WL,Corrêa LR

更新日期：1988-10-01 00:00:00

abstract：:Although human T-lymphotropic virus type I (HTLV-I) exhibits high genetic stability, as compared to other RNA viruses and particularly to human immunodeficiency virus (HIV), genotypic subtypes of this human retrovirus have been characterized in isolates from diverse geographical areas. These are currently believed not...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Segurado AA,Biasutti C,Zeigler R,Rodrigues C,Damas CD,Jorge ML,Marchiori PE

更新日期：2002-04-01 00:00:00

abstract：:A study of crepuscular and night-biting mosquitoes was conducted at remote settlements along the Padauiri River, middle Negro River, state of Amazonas, Brazil. Collections were performed with human bait and a CDC-light trap on three consecutive days per month from June 2003-May 2004. In total, 1,203 h of collection we...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Suárez-Mutis MC,Fé NF,Alecrim W,Coura JR

更新日期：2009-02-01 00:00:00

abstract：:For the first time Angiostrongylus vasorum in Canis familiaris in Minas Gerais State, Brazil, is described. The description and measurements of three males and ten females are presented together with a diagram of the parasite. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： dos Santos Lima W,de Araujo Costa HM,Guimarães MP,Leite AC

更新日期：1985-04-01 00:00:00

abstract：:Lutzomyia (Lutzomyia) falquetoi, sp. nov. (Diptera: Psychodidae, Phlebotominae) is described from the state of Espírito Santo, Brazil. This new species belongs to the series longipalpis and is easily distinguished from the other members of this taxon by the presence of five well-developed spines and a pre-apical spini...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pinto Ide S,Dos Santos CB

更新日期：2007-05-01 00:00:00

abstract：:In Mexico, despite the relatively high seroprevalence of Trypanosoma cruzi infection in humans in some areas, reported morbidity of Chagas disease is not clear. We determined clinical stage in 71 individuals seropositive to T. cruzi in the state of Puebla, Mexico, an area endemic for Chagas disease with a reported ser...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sánchez-Guillén Mdel C,López-Colombo A,Ordóñez-Toquero G,Gomez-Albino I,Ramos-Jimenez J,Torres-Rasgado E,Salgado-Rosas H,Romero-Díaz M,Pulido-Pérez P,Pérez-Fuentes R

更新日期：2006-11-01 00:00:00

abstract：:Angiotensin II (AII), a product of rennin-angiotensin system, exerts an important role on the function of immune system cells. In this study, the effect of AII on the phagocytic activity of mouse peritoneal macrophages was assessed. Mice peritoneal macrophages were cultured for 48 h and the influence of different conc...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Belline P,da Melo PS,Haun M,Palhares FB,Boer PA,Gontijo JA,Figueiredo JF

更新日期：2004-03-01 00:00:00

abstract：:Data analysis, presentation and distribution is of utmost importance to a genome project. A public domain software, ACeDB, has been chosen as the common basis for parasite genome databases, and a first release of TcruziDB, the Trypanosoma cruzi genome database, is available by ftp from ftp://iris.dbbm.fiocruz.br/pub/g...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Degrave W,de Miranda AB,Amorim A,Brandão A,Aslett M,Vandeyar M

更新日期：1997-11-01 00:00:00

abstract：:Epstein-Barr virus (EBV) plays a major role in liver pathology. Similar to other members of the herpesvirus family, EBV establishes a persistent infection in more than 90% of adults. The aim of this study was to evaluate the impact of EBV and chronic hepatitis C co-infection (HCV) on biochemical and immunological resp...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Shoman S,Nabil M,Tabl A,Ghanem H,Kafrawy SE

更新日期：2014-09-01 00:00:00

abstract：:Trypanosoma rangeli, a parasite generally considered non-pathogenic for man, is the second species of human trypanosome to be reported from the New World. The geographical distribution of T. rangeli often overlaps with that of T. cruzi, the same vertebrate and invertebrate hosts being infected. Their differentiation t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Guhl F,Vallejo GA

更新日期：2003-06-01 00:00:00

abstract：:The antibody response to Plasmodium falciparum parasites of naturally infected population is critical to elucidate the role of polymorphic alleles in malaria. Thus, we evaluated the impact of antigenic diversity of repetitive and family dimorphic domains of the merozoite surface protein 2 (MSP-2) on immune response of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sallenave-Sales S,Faria CP,Zalis MG,Daniel-Ribeiro CT,Ferreira-da-Cruz Mde F

更新日期：2007-06-01 00:00:00

abstract：:The great difficulties in treating people and animals suffering from cryptosporidiosis have prompted the development of in vitro experimental models. Due to the models of in vitro culture, new extracellular stages of Cryptosporidium have been demonstrated. The development of these extracellular phases depends on the t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Perez Cordón G,Marin C,Romero D,Rosales C,Sánchez Moreno M,Rosales MJ

更新日期：2007-08-01 00:00:00

abstract：:The mechanisms that facilitate the adaptation of Trypanosoma cruzi to two distinct hosts, insect and vertebrate, are poorly understood, in part due to the limited ability to perform gene disruption studies by homologous recombination. This report describes a developmentally-defective phenotype that resulted from integ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Zacks MA

更新日期：2007-02-01 00:00:00

abstract：:A major advance in our understanding of the natural history of Schistosoma haematobium-related morbidity has come through the introduction of the portable ultrasound machines for non-invasive examination of the kidneys and bladder. With the use of generators or battery packs to supply power in non-clinical field setti...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： King CH

更新日期：2002-01-01 00:00:00

abstract：:We present filaria-nested polymerase chain reaction (PCR), which is based on amplification of first internal transcribed spacer rDNA to distinguish three parasitic filarial species (Onchocerca volvulus, Mansonella ozzardi and Mansonella perstans) that can be found in the Amazon Region. Nested PCR-based identifications...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Tang TH,López-Vélez R,Lanza M,Shelley AJ,Rubio JM,Luz SL

更新日期：2010-09-01 00:00:00

abstract：:The aim of this study was to determine the presence of Helicobacter pylori cytotoxin-associated gene (cagA)/vacuolating cytotoxin gene (vacA) among patients with chronic gastritis in Cuba and Venezuela. Gastric antrum biopsies were taken for culture, DNA extraction and PCR analysis. Amplification of vacA and cagA segm...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ortiz-Princz D,Guariglia-Oropeza V,Avila M,Correnti M,Perrone M,Gutierrez B,Torres J,Megraud F,Cavazza ME

更新日期：2010-05-01 00:00:00

abstract：:BACKGROUND Fluctuations in climate have been associated with variations in mosquito abundance. OBJECTIVES To analyse the influence of precipitation, temperature, solar radiation, wind speed and humidity on the oviposition dynamics of Aedes aegypti in three distinct environmental areas (Brasília Teimosa, Morro da Conce...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Santos ICDS,Braga C,de Souza WV,de Oliveira ALS,Regis LN

更新日期：2020-01-01 00:00:00

abstract：:Type I diabetes mellitus (insulin-dependent DM = IDDM) is a chronic disease characterized by specific destruction of pancreatic beta cells, resulting in an absolute lack of insulin. Immune mechanisms, genetic susceptibility, and environmental factors are all implicated in the pathogenesis of Type 1 diabetes. This stud...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fidan I,Yüksel S,Kalkanci A,Imir T,Kustimur S

更新日期：2005-12-01 00:00:00

abstract：:In Brazil, malaria still remains a clinically important febrile syndrome for local populations and travelers, occurring mostly in the Amazon Basin. This review aims to report the main efforts employed to control this disease since the 1940s and the emergence of Plasmodium falciparum and Plasmodium vivax chemoresistanc...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gama BE,Lacerda MV,Daniel-Ribeiro CT,Ferreira-da-Cruz Mde F

更新日期：2011-08-01 00:00:00

abstract：:Several studies conducted all over the world have reported that the influenza virus is associated with great morbidity and mortality rates. In this study, we analyzed the incidence of the influenza virus between 2000 and 2003 in Curitiba. We studied 1621 samples obtained from outpatients and hospitalized patients of b...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Vidal LR,Siqueira MM,Nogueira MB,Raboni SM,Pereira LA,Takahashi GR,Rotta I,Debur Mdo C,Dalla-Costa LM

更新日期：2008-03-01 00:00:00

abstract：:Theoretically, serological assays with affinity purified marker antigens can allow strain-specific diagnosis even when parasites cannot be retrieved from an infected host. A Trypanosoma cruzi antigen was purified by affinity chromatography using a zymodeme (Z) 2 specific monoclonal antibody (2E2C11). An indirect enzym...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Schechter M

更新日期：1987-01-01 00:00:00

abstract：:In C57Bl/6 strain mice vaccinated with radiation-attenuated cercariae of Schistosoma mansoni immune elimination of challenge parasites occurs in the lungs. Leucocytes were recovered from the lungs of such mice by bronchoalveolar lavage and cultured in vitro with larval antigen; the profile of cytokines released was th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Wilson RA

更新日期：1992-01-01 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：:Positive Montenegro's skin test is a delayed type hypersensitivity reaction widely used as indicative of previous infection with Leishmania in both humans and dogs. Montenegro's antigen consists of a crude Leishmania antigen solution, usually containing thimerosal as preserving agent. In this work it is shown that a l...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Paranhos-Silva M,Pontes-de-Carvalho LC,de Sá Oliveira GG,Nascimento EG,dos-Santos WL

更新日期：2001-07-01 00:00:00

abstract：:The presence of transmitted human immunodeficiency virus (HIV)-1 drug-resistance (TDR) at the time of antiretroviral therapy initiation is associated with failure to achieve viral load (VL) suppression. Here, we report TDR surveillance in a specific population of men who have sex with men (MSM) in Belo Horizonte, Braz...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Tupinambás U,Duani H,Martins AV,Aleixo AW,Greco DB

更新日期：2013-06-01 00:00:00