A comparative study of fat body morphology in five mosquito species.

abstract：:The determination of amino acid changes in the envelope protein by direct sequencing of either genomic RNA or PCR-amplified cDNA fragments provides useful informations for assessing the genetic variability and the geographic distribution of the actually most widespread dengue-2 serotype. The possible link of variation...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Deubel V

更新日期：1992-01-01 00:00:00

abstract：:A simple and rapid method for differentiating the sibling species Biomphalaria tenagophila and Biomphalaria occidentalis by agarose gel electrophoresis (AGE) is described. Snail hemolymph is used as the test sample and the red coloration of the hemoglobin fraction permits visualization of the migration patterns withou...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bailey JB,Michelson EH,Paraense WL

更新日期：1986-07-01 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：:Coprolite samples of human and animal origin from the excavations performed at the archaeological site of Furna do Estrago, at Brejo da Madre de Deus in the state of Pernambuco, Brazil and sent to the Paleoparasitology Laboratory at Escola Nacional de Saúde Pública-Fiocruz, Rio de Janeiro, were analyzed for mites. Aft...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Candanedo Guerra Rde M,Gazêta GS,Amorim M,Duarte AN,Serra-Freire NM

更新日期：2003-01-01 00:00:00

abstract：:Raoultella planticola is an emerging zoonotic pathogen that is associated with rare but life-threatening cases of bacteremia, biliary tract infections, and urinary tract infections. Moreover, increasing antimicrobial resistance in the organism poses a potential threat to public health. In spite of its importance as a ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Huang YT,Chuang WY,Ho BC,Wu ZY,Kuo RC,Ko M,Liu PY

更新日期：2018-08-27 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：: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：:We describe a technique to separate male and female pupae of sand flies. This has reduced the labour to separate flies after emergence and also allows the isolation of unmated adults for behavioural and physiological studies. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Brazil BG,Brazil RP

更新日期：2000-07-01 00:00:00

abstract：:BACKGROUND The main strategy to control human malaria still relies on specific drug treatment, limited now by Plasmodium falciparum-resistant parasites, including that against artemisinin derivatives. Despite the large number of active compounds described in the literature, few of them reached full development against...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Penna-Coutinho J,Aguiar AC,Krettli\/ AU

更新日期：2018-12-06 00:00:00

abstract：:Didymocystis wedli a parasite from the gills of Thunnus albacares from the coast of the State of Rio de Janeiro, is described by use of light and scanning electron microscopy. This is the first report of this species in Brazil and South America. New data are presented on the surface topography as demonstrated by scann...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kohn A,Santos A,Baptista-Farias MF

更新日期：2001-10-01 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：:Citral, the main constituent of lemongrass (Cymbopogon citratus) essential oil, was added to Trypanosoma cruzi cultures grown in TAU3AAG medium to observe the effect on the epimastigote-to-trypomastigote differentiation process (metacyclogenesis). Our results showed that citral (20 μg/mL) did not affect epimastigote v...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cardoso J,Soares MJ

更新日期：2010-12-01 00:00:00

abstract：:Few studies are available on hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV) co-infection in populations living in small and medium-sized Brazilian cities. We evaluated the seroprevalence of these viruses in selected individuals from a clinic of infectology, who were referred to...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Portelinha Filho AM,Nascimento CU,Tannouri TN,Troiani C,Ascêncio EL,Bonfim R,D'Andrea LA,Prestes-Carneiro LE

更新日期：2009-11-01 00:00:00

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：:Goats from the Venezuelan northern arid zones were found infested by the following nematodes: Haemonchus contortus, Trichostrongylus axei, T. colubriformis, Cooperia curticei, Oesophagostomum columbianum, Skrjabinema ovis y Trichuris globulosa. The Shannon-Weaver index of diversity values oscillated between 0.045 and ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Morales G,Pino LA,Aldana E,Perdomo L,Molina E

更新日期：1986-04-01 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：:Patients with acute schistosomiasis were studied before and after oxamniquine treatment. They had been exposed to cercariae 5 to 9 weeks before, and presented compatible clinical manifestations, eosinophilia, and high levels of total IgE. Interferon-gamma (IFN-gamma) and interleukin-4 were measured by ELISA in whole b...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Souza JR,Morais CN,Aroucha ML,Miranda PJ,Barbosa CS,Domingues AL,Carvalho Júnior LB,Abath FG,Montenegro SM

更新日期：2007-05-01 00:00:00

abstract：:Resistance in Mycobacterium tuberculosis to isoniazid (INH) is caused by mutations in the catalase-peroxidase gene (katG), and within the inhA promoter and/or in structural gene. A small percentage (approximately 10%) of INH-resistant strains do not present mutations in both of these loci. Other genes have been associ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cardoso RF,Cardoso MA,Leite CQ,Sato DN,Mamizuka EM,Hirata RD,de Mello FF,Hirata MH

更新日期：2007-02-01 00:00:00

abstract：:The community structure of insects, especially mosquito larvae, in water held in the fungus Aquascypha hydrophora (Berk.) Reid (Stereaceae) is reported. The study was done in the Adolpho Ducke Forest Reserve, 26 km east of Manaus, AM, Brazil, from September 1998 through November 1999. The most abundant entomofauna wer...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira RL,Oliveira AF,Pereira ES,Hamada N

更新日期：2001-11-01 00:00:00

abstract：:An increasing amount of research has been conducted on immunoglobulin Y (IgY) because the use of IgY offers several advantages with respect to diagnostic testing, including its easy accessibility, low cost and translatability to large-scale production, in addition to the fact that it can be ethically produced. In a pr...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bentes GA,Lanzarini NM,Lima LR,Manso PP,da Silva Ados S,Mouta Junior Sda S,Guimarães JR,de Moraes MT,Pelajo-Machado M,Pinto MA

更新日期：2015-06-01 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：BACKGROUND:Cutaneous leishmaniasis (CL) generally presents with a single or several localised cutaneous ulcers without involvement of mucous membranes. Ulcerated lesions are susceptible to secondary contamination that may slow the healing process. OBJECTIVE:This study verified the influence of non-parasitic wound infe...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Antonio LF,Lyra MR,Saheki MN,Schubach AO,Miranda LFC,Madeira MF,Lourenço MCDS,Fagundes A,Ribeiro ÉADS,Barreto L,Pimentel MIF

更新日期：2017-09-01 00:00:00

abstract：:Investigation of the aetiology of viral meningitis in Brazil is most often restricted to cases that occur in the Southern and Southeastern Regions; therefore, the purpose of this study is to describe the viral meningitis cases that occurred in state of Pará, Northern Brazil, from January 2005-December 2006. The detect...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Castro CM,Oliveira DS,Macedo O,Lima MJ,Santana MB,Wanzeller AL,Silveira Ed,Gomes Mde L

更新日期：2009-05-01 00:00:00

abstract：:We have been interested in identifying genes that play a role in reproduction of the mosquito Aedes aegypti. Our interests are currently focused on the vitellogenin genes which in the mosquito are expressed only in the fat body in response to the insect steroid hormone, 20-hydroxyecdysone. Four of the five vitellogeni...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Hamblin MT,Marx JL,Wolfner MF,Hagedorn HH

更新日期：1987-01-01 00:00:00

abstract：:Sequences of the cytochrome c oxidase subunit I (COI) mitochondrial gene from adults of 22 Culex (Culex) species from Argentina and Brazil were employed to assess species identification and to test the usefulness of COI for barcoding using the best close match (BCM) algorithm. A pairwise Kimura two-parameter distance ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Laurito M,Oliveira TM,Almirón WR,Sallum MA

更新日期：2013-01-01 00:00:00

abstract：:The ecology of phlebotomine sandflies in an endemic focus of cutaneous leishmaniasis in Northern Venezuela (San Esteban, Carabobo State) was investigated through a year-term study. Three different habitats: viz. a house, a peridomestic area and a sylvatic area, were covered and the species composition, the abundance a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feliciangeli MD

更新日期：1987-01-01 00:00:00

abstract：:The goals of the present study were to evaluate the kinetics of blood parasitism by examination of fresh blood, blood culture (BC) and PCR assays and their correlation with heart parasitism during two years of infection in Beagle dogs inoculated with the Be-78, Y and ABC Trypanosoma cruzi strains. Our results showed t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Veloso VM,Guedes PM,Andrade IM,Caldas IS,Martins HR,Carneiro CM,Machado-Coelho GL,de Lana M,Galvão LM,Bahia MT,Chiari E

更新日期：2008-09-01 00:00:00

abstract：:A study of the phlebotomine sand fly fauna was carried out in an endemic area of American visceral leishmaniasis (AVL) in the municipality of Porteirinha, in the Brazilian state of Minas Gerais. Captures were performed with CDC light traps in 7 districts, 5 days per month, during 2 consecutive years (January 2000 to D...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barata RA,Silva JC,Costa RT,Fortes-Dias CL,Silva JC,Paula EV,Prata A,Monteiro EM,Dias ES

更新日期：2004-08-01 00:00:00

abstract：:In laboratory trials an aqueous solution of Piquerol A from Piqueria trinervia, collected in several regions of Mexico, showed a molluscicide action on the adults of eight different pulmonates snails species: Fossaria (Fossaria) humilis, F. (Bakerilymnaea) sp., Pseudosuccinea columella and Stagnicola attenuata from Me...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cruz-Reyes A,Chavarin C,Campos Arias MP,Taboada J,Jimenez M

更新日期：1989-01-01 00:00:00

abstract：:Tissue invasion and pathology by Trypanosoma cruzi result from an interaction between parasite virulence and host immunity. Successive in vivo generations of the parasite select populations with increasing ability to invade the host. Conversely, prolonged in vitro selection of the parasite produces attenuated sublines...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Basombrío MA,Segura MA,Gómez L,Padilla M

更新日期：2000-01-01 00:00:00