The balance between the production of tumor necrosis factor-alpha and interleukin-10 determines tissue injury and lethality during intestinal ischemia and reperfusion.

abstract：BACKGROUND:In recent years, South America has suffered the burden of continuous high impact outbreaks of dengue, chikungunya and Zika. Aedes aegypti is the main mosquito vector of these arboviruses and its control is the only solution to reduce transmission. OBJECTIVES:In order to improve vector control it is essentia...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Salgueiro P,Restrepo-Zabaleta J,Costa M,Galardo AKR,Pinto J,Gaborit P,Guidez A,Martins AJ,Dusfour I

更新日期：2019-09-23 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：:While the influence of water in Helicobacter pylori culturability and membrane integrity has been extensively studied, there are little data concerning the effect of this environment on virulence properties. Therefore, we studied the culturability of water-exposed H. pylori and determined whether there was any relatio...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Guimarães NM,Azevedo NF,Vieira MJ,Figueiredo C

更新日期：2014-07-01 00:00:00

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：: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：:An overview is presented of the results obtained with biodegradable sustained release devices (SRDs) containing a mixture of polymers and either isometamidium (ISMM) or ethidium. Under controlled laboratory conditions (monthly challenge with tsetse flies infected with Trypanosoma congolense) the protection period in S...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Geerts S,Brandt J,De Deken R

更新日期：1999-03-01 00:00:00

abstract：:Lutzomyia (Lutzomyia) falquetoi, sp. nov. (Diptera: Psychodidae, Phlebotominae) is described from the state of Espírito Santo, Brazil. This new species belongs to the series longipalpis and is easily distinguished from the other members of this taxon by the presence of five well-developed spines and a pre-apical spini...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pinto Ide S,Dos Santos CB

更新日期：2007-05-01 00:00:00

abstract：:Within the country of Brazil, Santa Catarina is a major shellfish producer. Detection of viral contamination is an important step to ensure production quality and consumer safety during this process. In this study, we used a depuration system and ultraviolet (UV) disinfection to eliminate viral pathogens from artifici...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Corrêa Ade A,Rigotto C,Moresco V,Kleemann CR,Teixeira AL,Poli CR,Simões CM,Barardi CR

更新日期：2012-02-01 00:00:00

abstract：:Forty-three (31.4%) out of 137 serum samples obtained from two Indian communities living in the Amazon region were found to be positive for HTLV-I antibody, as tested by enzyme-linked immunosorbent assay (ELISA). Eighty-two sera were collected from Mekranoiti Indians, yielding 39% of positivity, whereas 11 (20.0%) of ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Nakauchi CM,Linhares AC,Maruyama K,Kanzaki LI,Macedo JE,Azevedo VN,Casseb JS

更新日期：1990-01-01 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：:Phlebotominae includes some vector species, mainly that of leishmaniases, with a very old host-parasite relationship. Some species fossils of this subfamily have been recently described and this paper presents the description of a new sand fly Pintomyia (Pifanomyia) paleotownsendi sp. nov in amber. The gonostyle prese...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Filho JD,Falcão AL,Galati EA,Brazil RP

更新日期：2006-12-05 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：:The merozoite surface protein-1 (MSP-1) locus of Plasmodium falciparum codes for a major asexual blood-stage antigen currently proposed as a major malaria vaccine candidate. The protein, however, shows extensive polymorphism, which may compromise its use in sub-unit vaccines. Here we compare the patterns of allelic di...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira MU,Kaneko O,Kimura M,Liu Q,Kawamoto F,Tanabe K

更新日期：1998-09-01 00:00:00

abstract：:Infusions of Aspidosperma nitidum (Apocynaceae) wood bark are used to treat fever and malaria in the Amazon Region. Several species of this family are known to possess indole alkaloids and other classes of secondary metabolites, whereas terpenoids, an inositol and the indole alkaloids harmane-3 acid and braznitidumine...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coutinho JP,Aguiar AC,dos Santos PA,Lima JC,Rocha MG,Zani CL,Alves TM,Santana AE,Pereira Mde M,Krettli AU

更新日期：2013-12-01 00:00:00

abstract：:Angiostrongylus cantonensis is the etiologic agent of eosinophilic meningoencephalitis in humans. Cases have been recorded in many parts of the world, including Brazil. The aim of this study was to compare the differences in the biology and morphology of two different Brazilian haplotypes of A. cantonensis: ac8 and ac...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Monte TC,Gentile R,Garcia J,Mota E,Santos JN,Maldonado Júnior A

更新日期：2014-12-01 00:00:00

abstract：:Project Horizonte, an open cohort of homosexual and bisexual human immunodeficiency virus (HIV-1) negative men, is a component of the AIDS Vaccine Program, in Belo Horizonte, Minas Gerais, Brazil. The objective of this study was to compare volunteers testing HIV positive at cohort entry with a sample of those who test...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Carneiro M,Cardoso FA,Greco M,Oliveira E,Andrade J,Greco DB,Antunes CM

更新日期：2003-04-01 00:00:00

abstract：:Here, we observed the uptake of membrane-impermeant molecules by cercariae as they penetrate the skin and are transformed into schistosomula. We propose that membrane-impermeant molecules, Lucifer Yellow, Propidium iodide and Hoechst 33258 enter the parasite through both thenephridiopore and the surface membrane and t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Thornhill J,Kusel J,Oliviera FA,Ribeiro F,Lima SF,Coelho PM,McVeigh P,Mattos AC

更新日期：2010-07-01 00:00:00

abstract：:We present filaria-nested polymerase chain reaction (PCR), which is based on amplification of first internal transcribed spacer rDNA to distinguish three parasitic filarial species (Onchocerca volvulus, Mansonella ozzardi and Mansonella perstans) that can be found in the Amazon Region. Nested PCR-based identifications...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Tang TH,López-Vélez R,Lanza M,Shelley AJ,Rubio JM,Luz SL

更新日期：2010-09-01 00:00:00

abstract：:We report the first two cases of Trichosporon mycotoxinivorans infections in Latin America. We also conducted a literature review and a microbiological investigation, including that of clinical and environmental isolates. A 30-year-old man with chronic renal failure had disseminated infection after dialysis and a 15-y...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Almeida JN Jr,Francisco EC,Barberino MGMA,Silva LVRFD Filho,Brandão OM,Colombo AL,Padovan ACB

更新日期：2017-10-01 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：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：:Metalloproteinases are abundant enzymes in crotaline and viperine snake venoms. They are relevant in the pathophysiology of envenomation, being responsible for local and systemic hemorrhage frequently observed in the victims. Snake venom metalloproteinases (SVMP) are zinc-dependent enzymes of varying molecular weights...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Teixeira Cde F,Fernandes CM,Zuliani JP,Zamuner SF

更新日期：2005-03-01 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：: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：:A new species of Brazilian phlebotomine sandfly found in Brazil, municipality of Diamantina, state of Minas Gerais, is described based on males and females collected in a quartzite cave. The body of spermathecae is continuous to the individual duct, lanky and tapering at the end, with conical shaped, not striated and ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barata RA,Serra e Meira PC,Carvalho GM

更新日期：2012-12-01 00:00:00

abstract：:Angiotensin II (AII), a product of rennin-angiotensin system, exerts an important role on the function of immune system cells. In this study, the effect of AII on the phagocytic activity of mouse peritoneal macrophages was assessed. Mice peritoneal macrophages were cultured for 48 h and the influence of different conc...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Belline P,da Melo PS,Haun M,Palhares FB,Boer PA,Gontijo JA,Figueiredo JF

更新日期：2004-03-01 00:00:00

abstract：:Applications of flow cytometry to clinical and experimental hematopoietic stem cell transplantation (HSCT) are discussed in this review covering the following topics: diagnosis and classification of lymphohematologic disorders, quantitation of hematopoietic progenitors in the graft, lymphohematopoietic reconstitution ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Voltarelli JC

更新日期：2000-05-01 00:00:00

abstract：:This paper evaluates CHCl3 and CH3OH extracts of the stem bark, branches and leaves of Drimys brasiliensis and drimane sesquiterpenes isolated from the stem bark against strains of Leishmania amazonensis and Leishmania braziliensis promastigotes and Plasmodium falciparum trophozoites. All of the extracts and compounds...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Claudino VD,da Silva KC,Cechinel Filho V,Yunes RA,Delle Monache F,Giménez A,Salamanca E,Gutierrez-Yapu D,Malheiros A

更新日期：2013-04-01 00:00:00

abstract：:Helmintex is a sensitive method used for detecting Schistosoma mansoni eggs. Here, we describe the observed frequency of six proposed criteria associated with the identification of S. mansoni eggs prepared with the Helmintex method and stained with ninhydrin. The efficacy of these criteria in classifying S. mansoni eg...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Souza RP,Favero V,Pascoal VF,Lindholz C,Bittencourt HR,Graeff-Teixeira C

更新日期：2019-01-01 00:00:00

abstract：:Faeces from 17 children less than 1.6 years old and 15 adults more than 22 years old were collected during an outbreak of gastroenteritis in a day care nursery and screened for the presence of adenovirus and rotavirus by enzyme immunoassay (EIARA) and other viruses by electron microscopy (EM) and polyacrylamide gel el...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Castro L,Rodrigues Ddos P,Flauzino R,Moura M,Leite JP

更新日期：1994-01-01 00:00:00