Vascular dysfunction as a target for adjuvant therapy in cerebral malaria.

abstract：:The effects of radiation on the reproductive capacity and the longevity of Panstrongylus megistus were studied. An indirect correlation between longevity and radiation doses was observed. Males were more affected than females. Longevity of females submitted to 10 Gy was not different when compared to controls. Some of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Verçosa P,Falcão PH,Furtado AF

更新日期：1993-04-01 00:00:00

abstract：:The objective of this study was to evaluate the feeding behavior of Triatoma vitticeps through the identification of its food sources and the characterization of the blood ingestion process. In addition, we aimed to verify if the saliva of this vector interferes with the perception of the host during the feedings by c...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Souza Rde C,Soares AC,Alves CL,Lorosa ES,Pereira MH,Diotaiuti L

更新日期：2011-02-01 00:00:00

abstract：:A sylvatic Triatoma infestans DM (dark morph) population detected in the Bolivian Chaco was characterized and compared with various domestic ones. The degree of differentiation of DM was clearly within the T. infestans intra-specific level. Nevertheless marked chromatic and morphometric differences as well as differen...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Noireau F,Bastrenta B,Catalá S,Dujardin JP,Panzera F,Torres M,Perez R,Galvão C,Jurberg J

更新日期：2000-01-01 00:00:00

abstract：:Small molecular weight compounds from Mandevilla velutina and from Eclipta prostata were found to be active against snakebite. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mors WB

更新日期：1991-01-01 00:00:00

abstract：:This is the first report on occurrence of Biomphalaria straminea in the district of São José de Almeida (municipality of Jaboticatubas) State of Minas Gerais, Brazil. The presence of B. glabrata and B. tenagophila had already been reported in this area. Such municipality is part of the metropolitan region of Belo Hori...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Massara CL,Carvalho Odos S,Caldeira RL,Jannotti-Passos LK,Schall VT

更新日期：2002-01-01 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：:Scientists have increasingly recognised that low methodological and analytical rigour combined with publish-or-perish incentives can make the published scientific literature unreliable. As a response to this, large-scale systematic replications of the literature have emerged as a way to assess the problem empirically....

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Neves K,Carneiro CF,Wasilewska-Sampaio AP,Abreu M,Valério-Gomes B,Tan PB,Amaral OB

更新日期：2020-10-23 00:00:00

abstract：BACKGROUND:In Brazil, the Yellow Fever virus (YFV) is endemic in the Amazon, from where it eventually expands into epidemic waves. Coastal south-eastern (SE) Brazil, which has been a YFV-free region for eight decades, has reported a severe sylvatic outbreak since 2016. The virus spread from the north toward the south o...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Abreu FVS,Delatorre E,Dos Santos AAC,Ferreira-de-Brito A,de Castro MG,Ribeiro IP,Furtado ND,Vargas WP,Ribeiro MS,Meneguete P,Bonaldo MC,Bello G,Lourenço-de-Oliveira R

更新日期：2019-01-01 00:00:00

abstract：:This paper presents the morphological, histological and ultrastructural characteristics of Myxobolus oliveirai sp. nov., a parasite of the gill filaments in Brycon hilarii from the Brazilian Pantanal. Out of 216 B. hilariispecimens examined (126 wild and 90 cultivated), 38.1% of wild specimens (n = 48) were infected. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Milanin T,Eiras JC,Arana S,Maia AA,Alves AL,Silva MR,Carriero MM,Ceccarelli PS,Adriano EA

更新日期：2010-09-01 00:00:00

abstract：:The lack of an experimental animal model for the study of dengue pathogenesis is a limiting factor for the development of vaccines and drugs. In previous studies, our group demonstrated the susceptibility of BALB/c mice to infection by dengue virus (DENV) 1 and 2, and the virus was successfully isolated in several org...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rasinhas ADC,Silva MAND,Caldas GC,Jácome FC,Leonardo R,Santos FBD,Nunes PCG,Barth OM,Barreto-Vieira DF

更新日期：2018-02-05 00:00:00

abstract：:Ascorbate peroxidases (APX) are class I heme-containing enzymes that convert hydrogen peroxide into water molecules. The gene encoding APX has been characterized in 11 strains of Trypanosoma cruzi that are sensitive or resistant to benznidazole (BZ). Bioinformatic analysis revealed the presence of two complete copies ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Nogueira FB,Rodrigues JF,Correa MM,Ruiz JC,Romanha AJ,Murta SM

更新日期：2012-06-01 00:00:00

abstract：:Domiciliated Rhodnius prolixus and sylvatic R. colombiensis were analyzed in order to confirm their genetic divergence and verify the risk that the latter represents in the domiciliation process, and to provide tools for identifying the sources of possible reinfestation by triatomines in human dwellings allowing contr...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Jaramillo C,Montaña MF,Castro LR,Vallejo GA,Guhl F

更新日期：2001-11-01 00:00:00

abstract：:The biochemical and serological characteristics, virulence properties, and genetic relatedness of Shiga toxin-producing Escherichia coli (STEC) strains isolated in S o Paulo, from April 1989 through March 1990, were determined. This is also the first report on clinic findings of human STEC infections in Brazil. The on...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Guth BE,Ramos SR,Cerqueira AM,Andrade JR,Gomes TA

更新日期：2002-12-01 00:00:00

abstract：:In Brazil, until 2004, the immunization policy against diphtheria involved childhood vaccination with no official routine booster dose administered after 15 years of age. This study assessed functional antibody levels against diphtheria among blood donors. A total of 140 blood samples were collected, and diphtheria an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pimenta FP,Damasco PV,Cerbino Neto J,Lopes GS,Hirata R Jr,Milagres LG,Mattos-Guaraldi AL

更新日期：2006-06-01 00:00:00

abstract：:As pyrethroids are presently the favored group of insecticides to control triatomines, we performed a series of bioassays to determine the intrinsic activity of some of the main compounds used in the control campaigns, against five of the main species of triatomines to be controlled. Comparing the insecticides it can ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira Filho AM

更新日期：1999-01-01 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：:Toxicological and toxicogenetic effects of aqueous (tea) and hexanic fruit extract of Indigofera suffruticosa Mill. and hydroalcoholic root extract of Solanum agrarium Stendt. were evaluated in Balb C male mice intraperitoneally exposed. A hepatotoxic effect was observed just for animals treated with aqueous fruit ext...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ribeiro LR,Bautista AR,Silva AR,Sales LA,Salvadori DM,Maia PC

更新日期：1991-01-01 00:00:00

abstract：:Qualitative bacteriological analysis was carried out in two sewage treatment plants in the city of Rio de Janeiro during the period 1984-1985. Specific points of the plants were selected for the collection of affluent and effluent samples. The study involved the isolation and the identification of 540 cultures of Esch...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ribeiro Dias JC,Vicente AC,Hofer E

更新日期：1987-07-01 00:00:00

abstract：BACKGROUND:Chagas disease is a public health problem caused by infection with the protozoan Trypanosoma cruzi. There is currently no effective therapy for Chagas disease. Although there is some evidence for the beneficial effect of bone marrow-derived cells in chagasic disease, the mechanisms underlying their effects i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Irion CI,Paredes BD,Brasil GV,Cunha STD,Paula LF,Carvalho AR,Carvalho ACC,Carvalho AB,Goldenberg RCDS

更新日期：2017-08-01 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：:The Program for Schistosomiasis Control within the Unified Health System (PCE-SUS) was implemented by 1999 in the Rainforest Zone or "Zona da Mata" of Pernambuco (ZMP) aiming to carry out biennial stool surveys of whole populations through municipal health organs followed by treatment of the positives through the loca...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Favre TC,Ximenes RA,Galvão AF,Pereira AP,Wanderlei TN,Barbosa CS,Pieri OS

更新日期：2006-09-01 00:00:00

abstract：:A rational method of search for natural neolignans of desired structures is outlined. This involves consultation of a collection of chemical profiles of plant families. The profiles are assembled considering the biosynthetic class (in the present case lignoids), subclass (neolignans), structural types (neolignan skele...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gottlieb OR

更新日期：1991-01-01 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：:The characteristics of tuberculosis (TB) patients related to a chain of recent TB transmissions were investigated. Mycobacterium tuberculosis (MTB) isolates (120) were genotyped using the restriction fragment length polymorphism-IS6110 (R), spacer oligotyping (S) and mycobacterial interspersed repetitive units-variabl...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Peñuelas-Urquides K,Martínez-Rodríguez HG,Enciso-Moreno JA,Molina-Salinas GM,Silva-Ramírez B,Padilla-Rivas GR,Vera-Cabrera L,Torres-de-la-Cruz VM,Martínez-Martínez YB,Ortega-García JL,Garza-Treviño EN,Enciso-Moreno L,Saucedo-Cárd

更新日期：2014-09-01 00:00:00

abstract：:We used a slide culture technique to detect tubercle bacilli surviving in sputum smears (n=46) after conventional heat fixation and Ziehl-Neelsen staining. In all heat-fixed sputum smears, tubercle bacilli survived after time 0 (n=22), 24 h (n=7), 48 h (n=7), 72 h (n=4), and seven days (n=6). None of the stained sputu...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cardoso CL,Giacomelli LR,Helbel C,Sant'Ana JJ,Martins FM,Barreto AM

更新日期：2001-02-01 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：:Brazilian studies involving entomological succession patterns in carcasses have been used to describe the necrophagous entomofauna of a determined municipality or region with forensic objectives. Following the same objectives, an ecological study with 10 calyptrate dipterans was carried out during the winter of 2007 a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbosa RR,Mello-Patiu CA,Ururahy-Rodrigues A,Barbosa CG,Queiroz MM

更新日期：2010-03-01 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：: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：:During studies of Simuliidae at a suspected new focus of human onchocerciasis in central Brazil a new species of Simulium was found. Full descriptions of the adults and pupae of this species, S. cuasiexiguum, are described here, its affinities to closely related species in the subgenus Notolepria are discussed and its...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Shelley AJ,Luna Dias AP,Maia-Herzog M,Lowry CA,Garritano PR,Penn M,Camargo M

更新日期：2001-05-01 00:00:00