Early Cretaceous trypanosomatids associated with fossil sand fly larvae in Burmese amber.

abstract：:The primary objective of this study was to estimate the prevalence of this disease in women of childbearing age and children treated at health centres in underserviced areas of the city of Buenos Aires. Demographic and Chagas disease status data were collected. Samples for Chagas disease serology were obtained on filt...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Moscatelli G,Berenstein A,Tarlovsky A,Siniawski S,Biancardi M,Ballering G,Moroni S,Schwarcz M,Hernández S,García-Bournissen F,Cozzi AE,Freilij H,Altcheh J

更新日期：2015-08-01 00:00:00

abstract：:BACKGROUND Paracoccidioides spp. causes paracoccidioidomycosis (PCM), an important and frequent systemic mycosis that occurs in Latin America. The infectious process begins with contact between the fungus and lung cells, and the molecular pattern of this interaction is currently poorly understood. MicroRNAs (miRNAs) a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Singulani JL,Silva JFD,Gullo FP,Costa MC,Fusco-Almeida AM,Enguita FJ,Mendes-Giannini MJS

更新日期：2020-01-01 00:00:00

abstract：:The transference of the genetic markers and the presence of DNA plasmidial in 240 cultures of Escherichia coli was investigated. The strains were originated from Waste Treatment Plant (inffluent and effluents) located in Ilha do Governador, Rio de Janeiro. By conjugation analysis, E. coli K 12 allowed the isolation of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Vincente AC,Dias JC,Hofer E

更新日期：1988-01-01 00:00:00

abstract：:In a recent article in the Reader's Opinion, advantages and disadvantages of the certification processes of interrupted Chagas disease transmission (American trypanosomiasis) by native vector were discussed. Such concept, accepted by those authors for the case of endemic situations with introduced vectors, has been bu...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Salvatella R,Irabedra P,Castellanos LG

更新日期：2014-02-01 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：:Cross sectional studies on malaria prevalence was performed in 2001, 2002, and 2004 in Vila Candelária, an urban riverside area of Porto Velho, Rondônia, in the Brazilian Western Amazon, followed by longitudinal surveys on malaria incidence. Vila Candelária is a working class district, provided with electricity, water...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Tada MS,Marques RP,Mesquita E,Dalla Martha RC,Rodrigues JA,Costa JD,Pepelascov RR,Katsuragawa TH,Pereira-da-Silva LH

更新日期：2007-06-01 00:00:00

abstract：:Molecular characterization of one stable strain of Trypanosoma cruzi, the 21 SF, representative of the pattern of strains isolated from the endemic area of São Felipe, State of Bahia, Brazil, maintained for 15 years in laboratory by serial passages in mice and classified as biodeme Type II and zymodeme 2 has been inve...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Campos RF,Gonçalves MS,dos Reis EA,dos Reis MG,Andrade SG

更新日期：1999-01-01 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：:Triatoma sordida is a peridomestic Triatominae that could play an important role in the transmission of Trypanosoma cruzi, although its vectorial competence is not well known. The aim of this work was to evaluate two aspects of the vectorial competence: the feeding behaviour and defaecation patterns, and to compare th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Crocco LB,Catalá SS

更新日期：1996-07-01 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：:This study aimed to evaluate well-documented diagnostic antigens, named B13, 1F8 and JL7 recombinant proteins, as potential markers of seroconversion in treated chagasic patients. Prospective study, involving 203 patients treated with benznidazole, was conducted from endemic areas of northern Argentina. Follow-up was ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Niborski LL,Grippo V,Lafón SO,Levitus G,García-Bournissen F,Ramirez JC,Burgos JM,Bisio M,Juiz NA,Ayala V,Coppede M,Herrera V,López C,Contreras A,Gómez KA,Elean JC,Mujica HD,Schijman AG,Levin MJ,Longhi SA

更新日期：2016-05-24 00:00:00

abstract：:To analyze whether electrocardiographic alterations (ECGA) in patients with antibodies to Trypanosoma cruzi showed a pattern of familial aggregation, a sample of 379 young adults (166 men and 213 women) distributed in sibships, were assessed for the presence of anti-T. cruzi antibodies, and subjected to a complete cli...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Morini JC,Berra H,Dávila HO,Pividori JF,Bottasso OA

更新日期：1994-07-01 00:00:00

abstract：:In this work, a murine experimental model of toxocariasis has been developed in BALB/c, C57BL/10 and C3H murine strains orally inoculated with 4,000 Toxocara canis embryonated eggs, in order to investigate the isotype-specific immune responses against excretory-secretory antigens from larvae. T. canis specific IgG+M, ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cuéllar C,Fenoy S,del Aguila C,Guillén JL

更新日期：2001-05-01 00:00:00

abstract：:The present study investigated the diagnostic value of polymerase chain reaction (PCR) performed in parallel to conventional methods at an American tegumentary leishmaniasis (ATL) referral centre for diagnosis. Accuracy parameters for PCR were calculated using 130 patients with confirmed ATL (ATL group), 15 patients e...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fagundes A,Schubach A,Paula CC,Bogio A,Antonio Lde F,Schiavoni PB,Monteiro Vde S,Madeira Mde F,Quintella LP,Valete-Rosalino CM,Vasconcellos Ede C,Azeredo-Coutinho RB,Pacheco RS,Marzochi MC,Marzochi KB

更新日期：2010-02-01 00:00:00

abstract：:A survey was conducted in a blood donor population of Central Brazil aiming to investigate the prevalence of GB virus C (GBV-C)/hepatitis G virus (HGV) infection and also to analyze the virus genotypes distribution. A total of 241 voluntary blood donors were interviewed at the State Blood Bank in Goiânia, State of Goi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira LA,Martins RM,Carneiro MA,Teles SA,Silva SA,Cardoso DD,Lampe E,Yoshida CF

更新日期：2002-10-01 00:00:00

abstract：:Sixty eight patients with localized cutaneous leishmaniasis from an area with Leishmania (Viannia) braziliensis transmission had cultures performed with a modified Marzochís vacuum aspiratory puncture technique to establish sensitivity and contamination rate with this new method. Overall sensitivity of three aspirates...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Romero GA,Sampaio RN,Macedo Vde O,Marsden PD

更新日期：1999-07-01 00:00:00

abstract：:A virus antigenic characterization methodology using an indirect method of antibody detection ELISA with virus-infected cultured cells as antigen and a micro virus neutralisation test using EIA (NT-EIA) as an aid to reading were used for antigenic characterization of Jatobal (BeAn 423380). Jatobal virus was characteri...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Figueiredo LT,Da Rosa AP

更新日期：1988-04-01 00:00:00

abstract：:The trypanosomatid cytoskeleton is responsible for the parasite's shape and it is modulated throughout the different stages of the parasite's life cycle. When parasites are exposed to media with reduced osmolarity, they initially swell, but subsequently undergo compensatory shrinking referred to as regulatory volume d...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Dagger F,Valdivieso E,Marcano AK,Ayesta C

更新日期：2013-02-01 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 evaluation of the activity of the aqueous and ethyl acetate extracts of the leaves of Piper regnellii was tested against gram-positive and gram-negative bacteria. The aqueous extract displayed a weak activity against Staphylococcus aureus and Bacillus subtilis with minimal inhibitory concentration (MIC) and minima...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pessini GL,Dias Filho BP,Nakamura CV,Cortez DA

更新日期：2003-12-01 00:00:00

abstract：:The invasion of the erythrocyte by Plasmodium falciparum depends on the ability of the merozoite to move through the membrane invagination. This ability is probably mediated by actin dependent motors. Using affinity columns with G-actin and F-actin we isolated actin binding proteins from the parasite. By immunoblottin...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Forero C,Wasserman M

更新日期：2000-05-01 00:00:00

abstract：:Previous investigations showed that Schistosoma mansoni infection aggravates protein malabsorption in undernourished mice and this can be reverted by administration of casein hydrolysate. The present study was undertaken to evaluate the effects of ingestion of casein hydrolysate for long periods. Albino Swiss mice wer...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira HS,Coutinho EM,Nascimento GR,Carvalho MC

更新日期：1998-01-01 00:00:00

abstract：:After the acute hyperergic phase of schistosomal infection, the chronic phase of the disease corresponds to the establishment of a relative equilibrium between the host and the parasite. This involves: (1) A shift from the predominance of the TH2 response observed in the acute phase, to the predominance of the TH1 res...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Borojevic R

更新日期：1992-01-01 00:00:00

abstract：:A new species of the genus Cotylophoron (Trematoda--Paramphistomidae) --Cotylophoron travassosi sp. n.--is described. The measurements of the worm and its structures are compared with the valid known species. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Costa HM,Guimaráes MP

更新日期：1992-01-01 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：: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：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：:Cytokines are important in the cell-mediated response to Schistosoma mansoni eggs. We have found that Th2 cytokine responses (e.g. IL-4 and IL-5) are augmented after egg laying begins while Th1 responses (IL-2 and IFN-gamma) are down regulated in S. mansoni infected mice. Treatment of mice with anti-IL-5 monoclonal an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cheever AW,Xu Y,Macedonia JG,Cox T,Hieny S,Sher A

更新日期：1992-01-01 00:00:00

abstract：:This paper presents a list of 131 Mallophaga type specimens deposited in the Werneck Collection of Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil. It includes 69 holotypes, 62 allotypes, 683 paratypes, 1 syntype and 2 neoparatypes, distributed among 6 families and 35 genera. The types are listed with their respect...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cardozo-de-Almeida M,Linardi PM,Costa J

更新日期：2003-03-01 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