[Morbidity of schistosomiasis mansoni in Brazil. Developmental study in an endemic area over a 10-year period].

abstract：:A ribosome association factor (AF) was isolated from the yeast Sacchharomyces cerevisiae. Partial amino acid sequence of AF was determined from its fragment of 25 kDa isolated by treating AF with 2-(2-nitrophenylsulfenyl)-3-methyl-3'-Bromoindolenine (BNPS-skatole). This sequence has a 86% identity to the product of th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Correia H,Medina R,Hernández A,Bustamante E,Chakraburtty K,Herrera F

更新日期：2004-11-01 00:00:00

abstract：:Catadiscus pomaceae sp. n. from the intestine of the prosobranch mollusc Pomacea canaliculata (Lamarck, 1801), is described. The host snail was collected from a lenitic biotope belonging to the Riachuelo basin (Corrientes province, Argentina) during 1985-1986. So far the species of the genus Catadiscus Cohn, 1904 have...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Hamann MI

更新日期：1992-01-01 00:00:00

abstract：:A shift from large to small average sizes was observed in Triatoma infestans and Rhodnius domesticus between field and domestic (or laboratory) conditions of life. It was more pronounced in the female specimens, leading to a subsequent reduction of sexual size dimorphism. This feature is discussed in terms of genetic ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Dujardin J,Steinden M,Chavez T,Machane M,Schofield C

更新日期：1999-07-01 00:00:00

abstract：:A 19-month mark-release-recapture study of Neotoma micropus with sequential screening for Leishmania mexicana was conducted in Bexar County, Texas, USA. The overall prevalence rate was 14.7% and the seasonal prevalence rates ranged from 3.8 to 26.7%. Nine incident cases were detected, giving an incidence rate of 15.5/...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Raymond RW,McHugh CP,Witt LR,Kerr SF

更新日期：2003-03-01 00:00:00

abstract：:Antibodies against heart vascular structures and striated muscle cells interstitium (EVI antibodies) persist in Chagas' disease patients who had been cured by specific treatment as demonstrated by negative xenodiagnosis, conventional serology (CS) and complement mediated lysis (CoML). On the other hand, EVI antibodies...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Brener Z,Ramirez LE,Krettli AU,Cançado JR

更新日期：1983-10-01 00:00:00

abstract：:Discs of polyvinyl alcohol cross-linked with glutaraldehyde were synthesized under acid catalysis (H2SO4). Then, the antigen F1 purified from Yersinia pestis was covalently linked to this modified polymer. Afterwards, an enzyme-linked immunosorbent assay (ELISA) was established for the diagnosis of plague in rabbit an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Araujo AM,Petribú AT,Sales Barbosa GH,Diniz JR,de Almeida AM,Mendes Azevedo W,Malagueño E,Carvalho Júnior LB

更新日期：1996-03-01 00:00:00

abstract：:The haemolymph of Panstrongylus megistus showed a natural lectin activity for a wide range of vertebrate erythrocytes. Agglutination was observed against all vertebrate erythrocytes tested (human ABO, duck, rabbit, mouse, sheep, chicken and cow). Cow erythrocytes showed the lowest titre. Concerning human erythrocytes,...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gomes YM,Furtado AF,De Carvalho AB

更新日期：1988-10-01 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：:Thirteen species of helminth parasites were recovered from six species of charadriid shorebirds (Aves: Charadriiformes) from Belize: the ruddy turnstone, Arenaria interpres, the snowy plover, Charadrius alexandrinus, the semipalmated plover, C. semipalmatus, the killdeer, C. vociferus, the white-rumped sandpiper, Cali...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Canaris AG,Kinsella JM

更新日期：2001-08-01 00:00:00

abstract：:Schistosoma mansoni was introduced in the Senegal basin around 1988, due to man-made ecological changes. Since 1991, we investigate a recent but very intense focus, Ndombo, a village near the city of Richard Toll where the outbreak was first described. Four cohorts, each a random sample (+/- 400 subjects each) from th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gryseels B,Stelma F,Talla I,Polman K,Van Dam G,Sow S,Diaw M,Sturrock RF,Decam C,Niang M

更新日期：1995-03-01 00:00:00

abstract：BACKGROUND:Fibrosis in the peripheral nerve is the end stage of leprous neuropathy and the cause of the resulting permanent neural function impairments. Preventive measures to avoid this irreversible pathological state are a relief strategy for leprosy sufferers. OBJECTIVES:The present study describes the frequency of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Antunes SLG,Jardim MR,Vital RT,Pascarelli BMO,Nery JADC,Amadeu TP,Sales AM,da Costa EAF,Sarno EN

更新日期：2019-01-01 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：:Facilitated and improved by advances in molecular biology, techniques for the immunodiagnosis of schistosomiasis, including assays based on the detection of antigens circulating in the serum and/or excreted in the urine, have now reached the stage of multi-centre trials. There is a need to complement parasitological t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bergquist NR

更新日期：1992-01-01 00:00:00

abstract：:Triatoma brasiliensis is composed of at least four geographic populations (brasiliensis, melanica, macromelasoma, and juazeiro) that have distinct chromatic, morphologic, biologic and ecologic patterns, and genetic composition. Reciprocal crosses between all pairwise combinations were carried out in order to evaluate ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Costa J,Almeida CE,Dujardin JP,Beard CB

更新日期：2003-07-01 00:00:00

abstract：:In this work, the susceptibility to benznidazole of two parental Trypanosoma cruzi strains, Colombian and Berenice-78, was compared to isolates obtained from dogs infected with these strains for several years. In order to evaluate the susceptibility to benznidazole two groups of mice were infected with one of five dis...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Veloso VM,Carneiro CM,Toledo MJ,Lana M,Chiari E,Tafuri WL,Bahia MT

更新日期：2001-10-01 00:00:00

abstract：:Six clinical isolates of influenza A viruses were examined for hemagglutinin receptor specificity and neuraminidase substrate specificity. All of the viral isolates minimally passaged in mammalian cells demonstrated preferential agglutination of human erythrocytes enzymatically modified to contain NeuAc alpha 2,6Gal s...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Couceiro JN,Baum LG

更新日期：1994-10-01 00:00:00

abstract：:Although vaccines are the best means of protection against influenza, neuraminidase inhibitors are currently the main antiviral treatment available to control severe influenza cases. One of the most frequent substitutions in the neuraminidase (NA) protein of influenza A(H3N2) viruses during or soon after oseltamivir a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pontoriero A,Avaro M,Benedetti E,Russo M,Czech A,Periolo N,Campos A,Zamora A,Baumeister E

更新日期：2016-12-01 00:00:00

abstract：:As in many areas of Brazil, the AIDS epidemic in Curitiba is relatively stable, but surveillance is important to support public policy. The molecular characteristics of HIV may be instrumental for monitoring epidemic trends. We evaluated plasma HIV-1 RNA (n = 37) from 38 cases presenting with positive serology, who we...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira JL,Thomaz M,Rodrigues R,Harrad D,Oliveira CM,Oliveira CA,Batista JP,Ito TS,Brigido LF

更新日期：2008-12-01 00:00:00

abstract：:The epidemiological features of rotavirus A (RVA) infection differ between children from developing and developed countries which could result in differences in vaccine efficacy around the world. To evaluate the impact of Rotarix™ on RVA prevalence, we monitored RVA genotypes circulating in Goiânia by monitoring virus...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Borges AM,Dias e Souza M,Fiaccadori FS,Cardoso Dd

更新日期：2011-06-01 00:00:00

abstract：:In the Americas, hantaviruses cause severe cardiopulmonary syndrome (HCPS) with a high fatality rate. Hantavirus infection is commonly diagnosed using serologic techniques and reverse transcription-polymerase chain reaction. This paper presents a novel plaque reduction neutralisation test (PRNT) for detecting antibodi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pádua Md,Souza WM,Lauretti F,Figueiredo LT

更新日期：2015-08-01 00:00:00

abstract：:The natural lignans veraguensin and grandisin have been reported to be active against Trypanosoma cruzi bloodstream forms. Aiming at the total synthesis of these and related compounds, we prepared three 2-arylfurans and eight 2,5-diarylfurans. They were evaluated for their potential as T. cruzi trypanothione reductase...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Oliveira RB,Vaz AB,Alves RO,Liarte DB,Donnici CL,Romanha AJ,Zani CL

更新日期：2006-03-01 00:00:00

abstract：:This study aimed at identifying the best ovitrap installation sites for gravid Aedes aegypti in Mirassol, state of São Paulo, Brazil. Ovitraps were installed in ten houses per block over ten blocks. Four ovitraps were placed per residence, one in the bedroom, one in the living room, and two outdoors with one in a shel...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Dibo MR,Chiaravalloti-Neto F,Battigaglia M,Mondini A,Favaro EA,Barbosa AA,Glasser CM

更新日期：2005-07-01 00:00:00

abstract：:In an endemic area of cutaneous leishmaniasis in Rio de Janeiro State where a mule had been found infected, a systematic search among equines was performed, resulting in the detection of Leishmania parasites in skin lesions of 30.8% of the animals, which included horses and mules. The eventual role of equines in the e...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Aguilar CM,Rangel EF,Deane LM

更新日期：1986-10-01 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：: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：:An important point in paleoparasitology is the correct diagnosis of the origin of coprolites found in archaeological sites. The identification of human and animal coprolites, through the study of the shape, size, characteristics after rehydration, alimentary contents, and the presence of parasites, has proved to be ac...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira LF,Araújo A,Confalonieri U,Chame M

更新日期：1989-04-01 00:00:00

abstract：:In 2008, we have celebrated the centenary of the discovery of Toxoplasma gondii.Although this ubiquitous protozoan can generate devastating damage in foetuses and newborns, its treatment is the only field in which we have made little progress, despite a huge body of research, and has not yet been validated. Pregnant w...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Peyron F

更新日期：2009-03-01 00:00:00

abstract：:Some species of Amphibia and Reptilia are listed as new hosts of spargana, from material deposited in the Helminthological Collection of Oswaldo Cruz Institute. It is discussed the difficulties in identifying the larvae (Sparganum) and also the identification of adults of Luheella species from South America. The histo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rego AA,Schäffer GV

更新日期：1992-01-01 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：:Five parasites are described in the lizard Amphisbaena alba (Amphisbaenidae) from the state of Par , North Brazil. Mature oocysts of Choleoeimeria amphisbaenae n. sp., are passed already mature in the faeces. They are ellipsoidal-cylindrical, average 33.7 x 22.8 m and are devoid of micropyle, oocyst residuum or polar...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lainson R

更新日期：2003-10-01 00:00:00