Lepromatous leprosy patients produce antibodies that recognise non-bilayer lipid arrangements containing mycolic acids.

abstract：:Coagulase-negative staphylococci (CNS) have been identified as the etiological agent in various infections and are currently the microorganisms most frequently isolated in nosocomial infections. However, little is known about the virulence factors produced by CNS that contribute to the pathogenesis of infections cause...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cunha Mde L,Rugolo LM,Lopes CA

更新日期：2006-09-01 00:00:00

abstract：:Cholinesterase and acid phosphatase (AP), but not alkaline phosphatase activities, were detected in cytosolic and membrane-bound fractions of ivermectin resistant and susceptible Haemonchus contortus infective-stage larvae. Some differences in acetylcholinesterase activity of cytosolic fractions and in the AP activity...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Giménez-Pardo C,Martínez-Grueiro MM,Gómez-Barrio A,Rodríguez-Caabeiro F

更新日期：2004-03-01 00:00:00

abstract：:To study changes in survival, in biological activities and behavior of planorbids submitted to increased hydrostatic pressure, we developed a technique using two transparent chambers and a hydraulic piston. The apparatus permitted renewal of the liquid medium without substantial variations in pressure, thus eliminatin...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Jurberg P,Soares MS,Mascitelli AC,Favre TC,Barbosa JV

更新日期：1988-01-01 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：:Mycobacteria, specially Mycobacterium tuberculosis are among the micro-organisms that are increasing dramatically the number of infections with death, all over the world. A great number of animal experimental models have been proposed to investigate the mechanisms involved in the host response against these intracellu...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Menezes-de-Lima-Júnior O,Henriques M das G

更新日期：1997-01-01 00:00:00

abstract：:Hepatitis E virus (HEV), an emerging virus associated with acute hepatic disease, leads to thousands of deaths worldwide. HEV has already been reported in Brazil; however, there is a lack of epidemiological and molecular information on the genetic variability, taxonomy, and evolution of HEV. It is thus unclear whether...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira-Filho EF,Dos Santos DR,Durães-Carvalho R,da Silva A,de Lima GB,Batista Filho AFB,Pena LJ,Gil LH

更新日期：2019-01-01 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：: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：:Coccidian oocysts containing 16 sporocysts with 4 sporozoites in each were observed in a faecal sample from Sclerurus scansor collected in the Itatiaia National Park, southeastern region of Brazil. The oocysts are characterized by ellipsoidal shape measuring 42.5 x 32.8 mm, with smooth, thick double-layered wall of a ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kawazoe U,Gouvêa H

更新日期：1999-03-01 00:00:00

abstract：:Lutzomyia georgii n. sp. and the female of L. tarapacaensis in the Series infraspinosa of the subgenus Evandromyia are described, from specimens collected in rainforest in the north of the State of Pará, Brazil. The new species was taken together with five other Evandromyia species including L. infraspinosa (sensu str...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Freitas RA,Barrett TV

更新日期：2002-03-01 00:00:00

abstract：:More sensitive methodologies are necessary to improve strongyloidiasis diagnosis. This study compared the sensitivities of the McMaster modified technique and polymerase chain reaction (PCR) assays, both performed in faecal samples. Lewis rats were subcutaneously infected with 4,000, 400 or 40 infective third-stage la...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Marra NM,Chiuso-Minicucci F,Machado GC,Zorzella-Pezavento SF,França TG,Ishikawa LL,Amarante AF,Sartori A,Amarante MR

更新日期：2010-02-01 00:00:00

abstract：:Infection of C3H/He mice with the Peruvian strain of Trypanosoma cruzi (Biodeme type I, Z2b), a macrophagotropic strain, determined severe parasitism of macrophages, necrosis of the spleen, and high host mortality. In the present study, pentoxifylline (PTX), an inhibitor of TNF-alpha was investigated on its action upo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Andrade SG,Magalhães Ldos A,Pessina DH

更新日期：2008-02-01 00:00:00

abstract：:Results of studies on a larvicidal cyanobacterium that expresses a Bti cryIVD gene fusion are reported. Genetically altered Agmenellum quadruplicatum PR-6 is shown to be toxic to larvae of three major genera of disease-bearing mosquitos. Factors affecting expression of Bti genes in cyanobacteria are discussed. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Murphy RC,Stevens SE Jr

更新日期：1995-01-01 00:00:00

abstract：:Since the emergence of West Nile virus (WNV) in North America in 1999, there have been several reports of WNV activity in Central and South American countries. To detect WNV in Brazil, we performed a serological survey of horses from different regions of Brazil using recombinant peptides from domain III of WNV. Positi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Silva JR,Medeiros LC,Reis VP,Chavez JH,Munhoz TD,Borges GP,Soares OA,Campos CH,Machado RZ,Baldani CD,Silva ML,Faria JL,Silva EE,Figueiredo LT

更新日期：2013-11-01 00:00:00

abstract：:In Brazil, carbapenem-resistant Pseudomonas aeruginosa isolates are closely related to the São Paulo metallo-β-lactamase (SPM) Brazilian clone. In this study, imipenem-resistant isolates were divided in two sets, 2002/2003 and 2008/2009, analysed by pulsed field gel electrophoresis and tested for the Ambler class B me...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cavalcanti FL,Almeida AC,Vilela MA,Morais MM,Morais Junior MA

更新日期：2012-05-01 00:00:00

abstract：:We investigated the cytokine profile of peripheral mononuclear cells from chronic osteomyelitis (OST) patients following in vitro stimulation with staphylococcal enterotoxin A (SEA). We demonstrate that stimulation with SEA induced prominent lymphocyte proliferation and high levels of tumour necrosis factor (TNF)-α, i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira GF,Moraes C,Silveira AM,Correa-Oliveira R,Teixeira-Carvalho A,Martins-Filho OA,Moreno EC,do Carmo LS,Fraga LA,Malaquias LC

更新日期：2012-05-01 00:00:00

abstract：:In many helminth infected hosts the number of eosinophils increases dramatically, often without any concurrent increases in the number of other leukocytes, so that eosinophils become the dominant cell type. Many experimental investigations have shown that the eosinophilia is induced by interleukin-5 (IL-5) but its fun...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ovington KS,Behm CA

更新日期：1997-01-01 00:00:00

abstract：:Cutaneous leishmaniasis (CL) is a neglected clinical form of public health importance that is quite prevalent in the northern and eastern parts of Egypt. A comprehensive study over seven years (January 2005-December 2011) was conducted to track CL transmission with respect to both sandfly vectors and animal reservoirs...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Samy AM,Doha SA,Kenawy MA

更新日期：2014-06-01 00:00:00

abstract：:We report the prevalence of human papillomavirus type 16 (HPV-16) variants in women with cervical lesions from the Federal District, Central Brazil. We analyzed 34 HPV-16 samples, identifying the sequence variations of E6 and L1 genes and correlating variant frequency with disease status. The most prevalent HPV-16 var...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cruz MR,Cerqueira DM,Cruz WB,Camara GN,Brígido MM,Silva EO,Carvalho LG,Martins CR

更新日期：2004-05-01 00:00:00

abstract：:Integration of human papillomavirus (HPV) DNA into human cells accompanied by the disruption of the viral genome has been described as a prerequisite for cancer development. This study aimed to investigate E2 gene integrity of HPV16 and HPV58 viruses isolated from infected women with cervical lesions. Forty-two HPV16-...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： González-Losa MD,Puerto-Solis M,Tenorio Ruiz J,Rosado-López AI,Hau-Aviles O,Ayora-Talavera G,Cisneros-Cutz I,Conde-Ferráez L

更新日期：2016-12-01 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：:Immunoblot analysis was used to investigate antigenic differences among clinical isolates of Leishmania amazonensis and their role in the etiology of the disease. Western blots of promastigote homogenates were analyzed with either monoclonal antibodies (MAbs) specific for the L. mexicana complex (M-4, M-6, M-9, and M-...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Leon LL,Machado GM,Barral A,de Carvalho-Paes LE,Grimaldi Júnior G

更新日期：1992-04-01 00:00:00

abstract：:Acinetobacter baumannii is a strictly aerobic bacterium which causes severe infections, however its pathogenic characteristics are not well defined. Thirteen A. baumannii strains isolated from urine of hospitalized and nonhospitalized patients with different ages were investigated for the presence of virulence factors...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Braun G,Vidotto MC

更新日期：2004-12-01 00:00:00

abstract：:Prosorhynchoides arcuatus (Linton, 1900) from the intestine of Pomatomus saltator (L.) from the Atlantic coast of the State of Rio de Janeiro is studied by scanning electron microscopy, with detailed description of tegumental spines. Comments on the synonymy of this species with Bucephalopsis callicotyle Kohn, 1962 ar...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cohen SC,Kohn A,Barth OM

更新日期：1995-01-01 00:00:00

abstract：:The insect fat body plays major roles in the intermediary metabolism, in the storage and transport of haemolymph compounds and in the innate immunity. Here, the overall structure of the fat body of five species of mosquitoes (Aedes albopictus, Aedes fluviatilis, Culex quinquefasciatus, Anopheles aquasalis and Anophele...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Martins GF,Serrão JE,Ramalho-Ortigão JM,Pimenta PF

更新日期：2011-09-01 00:00:00

abstract：:The four dominant outer membrane proteins (46, 38, 33 and 28 kDa) were detected by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) in a semi-purified preparation of vesicle membranes of a Neisseria meningitidis (N44/89, B:4:P1.15:P5.5,7) strain isolated in Brazil. The N-terminal amino acid sequenc...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： De Simone SG,Soares SA,Souza AL,Danelli MG

更新日期：1996-01-01 00:00:00

abstract：:The objective of this study was to evaluate the relationship between toxocariasis frequency and demographic, environmental, sanitary variables, eosinophylia, and other intestinal parasites in a rural population of Argentina. Serological examination of 100 individuals was carried out by using ELISA technique for the de...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Chiodo P,Basualdo J,Ciarmela L,Pezzani B,Apezteguía M,Minvielle M

更新日期：2006-06-01 00:00:00

abstract：:In previous studies it was shown that the recombinant molecule, r-Sm14, induces high levels of protection against Schistosoma mansoni infection in two outbred animal models and immune crossprotection against infection by Fasciola hepatica in Swiss outbred mice. r-Sm14 was derived from a living worm extract, called SE,...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Thaumaturgo N,Vilar MM,Diogo CM,Edelenyi R,Tendler M

更新日期：2001-01-01 00:00:00

abstract：:Aedes albopictus was found in six of the 10 departments of Haiti and in 14 of the 35 communes surveyed. The survey found the larvae of Ae. albopictus in 13 different types of containers. Used tires and tins were by far the most common breeding sites used by this mosquito species. At the breeding sites, Ae. albopictus ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fernández Mdel C,Jean YS,Callaba CA,López LS

更新日期：2012-03-01 00:00:00

abstract：:A polysaccharide-rich fraction (ATF) of medicinal mushroom Agaricus brasiliensis was evaluated on the candidacidal activity, H2O2 and nitric oxide (NO) production, and expression of mannose receptors by murine peritoneal macrophages. Mice received three intraperitoneal (i.p.) injections of ATF and after 48 h their per...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Martins PR,Gameiro MC,Castoldi L,Romagnoli GG,Lopes FC,Pinto AV,Loyola W,Kaneno R

更新日期：2008-05-01 00:00:00