Isolation and identification of actin-binding proteins in Plasmodium falciparum by affinity chromatography.

abstract：:The determination of amino acid changes in the envelope protein by direct sequencing of either genomic RNA or PCR-amplified cDNA fragments provides useful informations for assessing the genetic variability and the geographic distribution of the actually most widespread dengue-2 serotype. The possible link of variation...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Deubel V

更新日期：1992-01-01 00:00:00

abstract：:Investigation of the aetiology of viral meningitis in Brazil is most often restricted to cases that occur in the Southern and Southeastern Regions; therefore, the purpose of this study is to describe the viral meningitis cases that occurred in state of Pará, Northern Brazil, from January 2005-December 2006. The detect...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Castro CM,Oliveira DS,Macedo O,Lima MJ,Santana MB,Wanzeller AL,Silveira Ed,Gomes Mde L

更新日期：2009-05-01 00:00:00

abstract：:Soluble antigens (Ag) from Paracoccidioides brasiliensis, Histoplasma capsulatum and Aspergillus fumigatus were prepared and standardized by double immunodiffusion (DID) and immunoelectroosmophoresis (IEOP). No difference in sensitivity was observed between the two techniques; 100% of standard patient sera were positi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira-da-Cruz MF,Galvão-Castro B,Wanke B

更新日期：1985-07-01 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：:In the present study, some morphological structures of antennae, maxillary palps and caudal setae of fourth instar larvae of laboratory-reared phlebotomine sand flies (Lutzomyia longipalpis, L. migonei, L. evandroi, L. lenti, L. sericea, L. whitmani and L. intermedia) of the State of Ceará, Brazil, were examined under...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pessoa FA,Guerra de Queiroz R,Ward RD

更新日期：2001-11-01 00:00:00

abstract：:A pleiotropic response to the calpain inhibitor MDL28170 was detected in the tomato parasite Phytomonas serpens. Ultrastructural studies revealed that MDL28170 caused mitochondrial swelling, shortening of flagellum and disruption of trans Golgi network. This effect was correlated to the inhibition in processing of cru...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira SS,Gonçalves DS,Garcia-Gomes AD,Gonçalves IC,Seabra SH,Menna-Barreto RF,Lopes AH,D'Avila-Levy CM,Santos AL,Branquinha MH

更新日期：2017-01-01 00:00:00

abstract：:Four superoxide dismutase (SOD) activities (SOD I, II, III, and IV) have been characterized in the epimastigote form of Trypanosoma cruzi. The total extract was subjected to two successive ammonium sulphate additions between 35 and 85%, and the resulting fraction was purified using two continuous chromatography proces...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mateo H,Marín C,Pérez-Cordón G,Sánchez-Moreno M

更新日期：2008-05-01 00:00:00

abstract：:To assess differentiation and relationships between Anopheles lesteri and Anopheles paraliae we established three and five iso-female lines of An. lesteri from Korea and An. paraliae from Thailand, respectively. These isolines were used to investigate the genetic relationships between the two taxa by crossing experime...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Taai K,Baimai V,Saeung A,Thongsahuan S,Min GS,Otsuka Y,Park MH,Fukuda M,Somboon P,Choochote W

更新日期：2013-05-01 00:00:00

abstract：:In visceral leishmaniasis, phlebotomine vectors are targets for control measures. Understanding the ecosystem of the vectors is a prerequisite for creating these control measures. This study endeavours to delineate the suitable locations of Phlebotomus argentipes with relation to environmental characteristics between ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kesari S,Bhunia GS,Kumar V,Jeyaram A,Ranjan A,Das P

更新日期：2011-08-01 00:00:00

abstract：:The dissemination of plasmid-mediated antimicrobial resistance genes may pose a substantial public health risk. In the present work, the occurrences of blaCTX-M and plasmid-mediated ampC and qnr genes were investigated in Escherichia coli from 16 chicken carcasses produced by four commercial brands in Brazil. Of the b...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Botelho LA,Kraychete GB,Costa e Silva JL,Regis DV,Picão RC,Moreira BM,Bonelli RR

更新日期：2015-04-01 00:00:00

abstract：:Rhodnius ecuadoriensis is the second most important vector of Chagas Disease (CD) in Ecuador. The objective of this study was to describe (and compare) the life cycle, the feeding and defecation patterns under laboratory conditions of two populations of this specie [from the provinces of Manabí (Coastal region) and Lo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Villacís AG,Arcos-Terán L,Grijalva MJ

更新日期：2008-11-01 00:00:00

abstract：:This study aims to investigate the importance of the serum factors present in the plasma of resistant Biomphalaria tenagophila snails, when transferred to susceptible conspecific. Susceptible B. tenagophila (CF) received plasma from resistant B. tenagophila (Taim), and both were later infected with Schistosoma mansoni...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coelho JR,Bezerra FS

更新日期：2006-02-01 00:00:00

abstract：:The subject of this conference reflects the scientific community's interest in seeking to understand the complex causal web whose various social, economic, and biological components interact in the production and reproduction of schistosomiasis and its control in relation to community participation. From the onset, th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbosa FS

更新日期：1995-03-01 00:00:00

abstract：:Studies based on shell or reproductive organ morphology and genetic considerations suggest extensive intraspecific variation in Biomphalaria snails. The high variability at the morphological and genetic levels, as well as the small size of some specimens and similarities between species complicate the correct identifi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Vidigal TH,Dias Neto E,Spatz L,Nunes DN,Pires ER,Simpson AJ,Carvalho OS

更新日期：1998-01-01 00:00:00

abstract：:Analysis of zymograms with SDS-polyacrilamide gel electrophoresis containing gelatin as substrate, and performed on samples of haemolymph or fat body taken from Rhodnius prolixus inoculated or not with Enterobacter cloacae, demonstrated distinct patterns of protease activities: (i) in the haemolymph two proteases were...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feder D,Salles JM,Garcia ES,Azambuja P

更新日期：1998-11-01 00:00:00

abstract：:The global emergence and spread of malaria parasites resistant to antimalarial drugs is the major problem in malaria control. The genetic basis of the parasite's resistance to the antimalarial drug chloroquine (CQ) is well-documented, allowing for the analysis of field isolates of malaria parasites to address evolutio...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sutar SK,Gupta B,Ranjit M,Kar SK,Das A

更新日期：2011-02-01 00:00:00

abstract：:The objectives of this work were to determine the prevalence of Babesia bovis, Babesia bigemina, and Anaplasma marginale detecting antibodies in cattle raised in the semi-arid region of the state of Bahia, Brazil, through indirect enzyme linked immunosorbent assays (ELISA) and to compare the performances of indirect e...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barros SL,Madruga CR,Araújo FR,Menk CF,de Almeida MA,Melo EP,Kessler RH

更新日期：2005-10-01 00:00:00

abstract：:We collected and analyzed 500 samples of human milk, from five Brazilian cities (100 from each) to detect methicillin-resistant strains of Staphylococcus aureus (MRSA) producing enterotoxins. We found 57 strains of MRSA, and the mecA gene, responsible for resistance, was detected in all of them using a specific molecu...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Novak FR,Almeida JA,Warnken MB,Ferreira-Carvalho BT,Hagler AN

更新日期：2000-01-01 00:00:00

abstract：:The chromatin of Trypanosoma congolense was analyzed by electron microscopy. The chromatin is organized as nucleosome filaments but does not form a 30 nm fiber. There are five groups of histones, including a histone H1-like protein, which as a molecular weight within the range of the core histones, and is extremely hy...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Schlimme W,Burri M,Betschart B,Hecker H

更新日期：1994-04-01 00:00:00

abstract：BACKGROUND:Occult hepatitis B virus (HBV) - characterized by the absence of detectable HBsAg in the presence of HBV DNA - represents a potential threat for blood safety. OBJECTIVES:This study was conducted with the aim to investigate the serological and molecular characterization of occult HBV infection (OBI) among bl...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mabunda N,Zicai AF,Ismael N,Vubil A,Mello F,Blackard JT,Lago B,Duarte V,Moraes M,Lewis L,Jani I

更新日期：2020-09-23 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：:In a prospective field study conducted from July 2000 to June 2001, adult Aedes aegypti and Ae. albopictus mosquitoes were caught from the municipality of Nova Iguaçu, State of Rio de Janeiro, Brazil. Virus isolation in Ae. albopictus clone C6/36 cell line and a semi-nested reverse transcription-polymerase chain react...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lourenco-de-Oliveira R,Honorio NA,Castro MG,Schatzmayr HG,Miagostovich MP,Alves JC,Silva WC,Leite PJ,Nogueira RM

更新日期：2002-09-01 00:00:00

abstract：:Clinical and laboratory evidence is reviewed which shows that there is a great deal of variation in the susceptibility of Schistosoma mansoni to oxamniquine. This variation occurs both among endemic regions and within endemic regions in Brazil and Kenya. It is genetically controlled. It is suggested that the parasite ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kinoti GK

更新日期：1987-01-01 00:00:00

abstract：:A case-control study was conducted to determine the presence ofMycobacterium lepraeDNA in nasal secretions of leprosy cases and nonleprosy individuals in Fortaleza, Brazil. It included 185 cases identified by physicians at the Dona Libânia National Reference Centre for Sanitary Dermatology (CDERM). A control group (Co...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lima LN,Frota CC,Mota RM,Almeida RL,Pontes MA,Gonçalves Hde S,Rodrigues LC,Kendall C,Kerr L

更新日期：2015-11-01 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：:Trypanosomes are parasitic protozoa in which gene expression is primarily controlled through the regulation of mRNA stability and translation. This post-transcriptional control is mediated by various families of RNA-binding proteins, including those with zinc finger CCCH motifs. CCCH zinc finger proteins have been sho...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mörking PA,Rampazzo Rde C,Walrad P,Probst CM,Soares MJ,Gradia DF,Pavoni DP,Krieger MA,Matthews K,Goldenberg S,Fragoso SP,Dallagiovanna B

更新日期：2012-09-01 00:00:00

abstract：:In the Saimiri monkey, an experimental host for human malaria, acquired protection against Plasmodium falciparum blood stages depends on the IgG antibody populations developed. In vivo protective anti-falciparum activity of IgG antibodies is correlated with the in vitro opsonizing activity promoting phagocytosis of pa...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gysin J

更新日期：1992-01-01 00:00:00

abstract：:The ecology of phlebotomine sandflies in an endemic focus of cutaneous leishmaniasis in Northern Venezuela (San Esteban, Carabobo State) was investigated through a year-term study. Three different habitats: viz. a house, a peridomestic area and a sylvatic area, were covered and the species composition, the abundance a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feliciangeli MD

更新日期：1987-01-01 00:00:00

abstract：:An experimental model for acquired and congenital ocular toxoplasmosis as well as a model to induce experimental autoimmune uveitis (EAU) was investigated in Calomys callosus. Toxoplasma gondii, ME-49 strain, was used to infect males and pregnant- and not pregnant-females while S-antigen, a major glycoprotein of the r...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pereira Mde F,Silva DA,Ferro EA,Mineo JR

更新日期：1999-01-01 00:00:00

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