First detection of dengue virus in the saliva of immunocompetent murine model.

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：:To study changes in survival, in biological activities and behavior of planorbids submitted to increased hydrostatic pressure, we developed a technique using two transparent chambers and a hydraulic piston. The apparatus permitted renewal of the liquid medium without substantial variations in pressure, thus eliminatin...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Jurberg P,Soares MS,Mascitelli AC,Favre TC,Barbosa JV

更新日期：1988-01-01 00:00:00

abstract：:In order to determine the best type of rabies vaccine to use as a booster, 78 serological samples from singly vaccinated cattle were analyzed by counterimmunoelectrophoresis technique. The animals were divided into several groups, received the first vaccine dose with modified live virus vaccine (ERA strain) and were r...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira AN,Andrade MC,Silva MV,Moura WC,Cortez Contreiras E

更新日期：2000-01-01 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：:Angiostrongylus costaricensis is the causative agent of abdominal angiostrongyliasis, a zoonotic infection that may produce severe eosinophilic enterocolitis or hepatitis in humans. Parasites are usually not released in stools and serology has an important role in diagnosis. Since cross-reactivity is demonstrated betw...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Graeff-Teixeira C,Pascoal VF,Rodriguez R,Morassutti AL,Intapan PM,Maleewong W

更新日期：2020-09-21 00:00:00

abstract：:The evolutionary relationships of sand flies and Leishmania are discussed in this report, which draws distinctions between co-association, co-evolution and co-speciation (or co-cladogenesis). Examples focus on Phlebotomus vectors of Le. infantum and Le. major in the Mediterranean subregion. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ready P

更新日期：2000-07-01 00:00:00

abstract：:Anopheles (Nyssorhynchus) pristinus Nagaki & Sallum, n. sp. of the Myzorhynchella Section is described based on morphological characters of adult females, males, fourth-instar larvae, pupae and male genitalia. Anopheles (Nyssorhynchus) antunesi Galvão & Amaral is characterized to fix its identity and distinguish it fr...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Nagaki SS,Motta Mde A,Sallum MA

更新日期：2010-05-01 00:00:00

abstract：BACKGROUND:The time of progression towards AIDS can vary greatly among seropositive patients, and may be associated with host genetic variation. The NR1I2 (PXR) gene, a ligand-activated transcription factor, regulates the transcription immune pathway genes and can therefore be targets of viral replication mechanisms in...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Medeiros RM,Menti CF,Benelli JL,Matte MC,Melo MG,Almeida SE,Fiegenbaum M

更新日期：2017-04-01 00:00:00

abstract：:In Argentina, most information on hepatitis C virus (HCV) genotype distribution comes from studies carried out in Buenos Aires (east province). In order to identify HCV subtypes in central Argentina, nucleotide sequencing of core region was performed in samples from 36 patients living in Córdoba, the second most popul...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ré V,Contigiani M,Yoshida CF,Lampe E

更新日期：2007-12-01 00:00:00

abstract：:The present paper reports acuarioid nematodes recovered from avian hosts. A new species of the genus Schistorophus Railliet, 1916 is proposed based mainly on findings referring to ptilina, spicules and vagina. Ancyracanthopsis coronata (Molin, 1860) Chabaud & Petter, 1959 is referred again in Brazil since its proposit...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pinto RM,Vicente JJ,Muniz-Pereira LC,Noronha D

更新日期：1999-11-01 00:00:00

abstract：:Sixteen species of ectoparasites were collected from 50 wild rodents, from August 1990 to August 1991, in an area of Araucaria augustifolia forest, in the municipality of Tijucas do Sul, State of Paraná, Brazil. Ectoparasites infested 98% of the rodents, with the highest indices of infestation found in the drycool sea...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barros-Battesti DM,Arzua M,Linardi PM,Botelho JR,Sbalqueiro IJ

更新日期：1998-11-01 00:00:00

abstract：:We report the molecular characterization of a novel reiterated family of transcribed oligo(A)-terminated, interspersed DNA elements in the genome of Trypanosoma cruzi. Steady-state level of transcripts of this sequence family appeared to be developmentally regulated, since only in the replicative forms the parasite sh...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Verbisck NV,dos Santos MR,Engman DM,Angel Chiurillo M,Ramirez JL,Araya JE,Mortara RA,da Silveira JF

更新日期：2003-01-01 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：:Penicillin tolerance among 67 strains of beta-hemolytic streptococci was examined by determining the ratio of the minimal bactericidal concentration to the minimal inhibitory concentration as 32 or greater. Tolerance was demonstrated in 15 group A strains and in 11.7, and 4 of groups B, C and G, respectively. Thereaft...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Avelino CC,Benchetrit LC

更新日期：1995-07-01 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：: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：:This study examined whether the antidermatophytic activity of essential oils (EOs) can be used as an indicator for the discovery of active natural products against Leishmania amazonensis. The aerial parts of seven plants were hydrodistilled. Using broth microdilution techniques, the obtained EOs were tested against th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Houël E,Gonzalez G,Bessière JM,Odonne G,Eparvier V,Deharo E,Stien D

更新日期：2015-02-01 00:00:00

abstract：:Only one drug is currently available for the treatment and control of schistosomiasis and the increasing risk of selecting strains of schistosome that are resistant to praziquantel means that the development of new drugs is urgent. With this objective we have chosen to target the enzymes modifying histones and in part...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pierce RJ,Dubois-Abdesselem F,Caby S,Trolet J,Lancelot J,Oger F,Bertheaume N,Roger E

更新日期：2011-11-01 00:00:00

abstract：:Certifying the absence of Chagas disease transmission by native vectors lacks scientific grounds and weakens long-term control-surveillance systems to the detriment of people living under risk conditions. Instead, a regular "certification of good practice" (including vector control-surveillance, case detection/patient...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Abad-Franch F,Diotaiuti L,Gurgel-Gonçalves R,Gürtler RE

更新日期：2013-04-01 00:00:00

abstract：:This report describes the development of a SYBR Green I based real time polymerase chain reaction (PCR) protocol for detection on the ABI Prism 7000 instrument. Primers targeting the gene encoding the SSU rRNA were designed to amplify with high specificity DNA from Schistosoma mansoni, in a real time quantitative PCR ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gomes AL,Melo FL,Werkhauser RP,Abath FG

更新日期：2006-09-01 00:00:00

abstract：:Several genes related to the ubiquitin (Ub)-proteasome pathway, including those coding for proteasome subunits and conjugation enzymes, are differentially expressed during the Schistosoma mansoni life cycle. Although deubiquitinating enzymes have been reported to be negative regulators of protein ubiquitination and sh...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pereira RV,Vieira HG,Oliveira VF,Gomes Mde S,Passos LK,Borges Wde C,Guerra-Sá R

更新日期：2014-02-01 00:00:00

abstract：:A pleiotropic response to the calpain inhibitor MDL28170 was detected in the tomato parasite Phytomonas serpens. Ultrastructural studies revealed that MDL28170 caused mitochondrial swelling, shortening of flagellum and disruption of trans Golgi network. This effect was correlated to the inhibition in processing of cru...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira SS,Gonçalves DS,Garcia-Gomes AD,Gonçalves IC,Seabra SH,Menna-Barreto RF,Lopes AH,D'Avila-Levy CM,Santos AL,Branquinha MH

更新日期：2017-01-01 00:00:00

abstract：:The authors investigated the distribution of lectin receptors on Trypanosoma cruzi blood forms collected from mice inoculated with, respectively, the drug-resistant and drug-sensitive strains VL-10 and CL, and treated with the two standard active nitroheterocyclic compounds nifurtimox and benznidazole used for treatme...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fontes G,Romanha AJ,Pereira ME,Brener Z

更新日期：1991-07-01 00:00:00

abstract：:Experiments with Squamatoides trivitattus were carried out in two different controlled temperatures (16 +/- 1 degree C/50-60% RH and 27 +/- 1 degree C/70-80% RH). The viability of larvae and pupae at 27 degrees C was 89.82% and 92.75% respectively. Larvae did not develop at 16 degrees C. Larval development lasted for ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Salviano RJ,de Mello RP,Beck LC,d'Almeida JM

更新日期：1996-03-01 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：: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：:Schistosomiasis in America with the exception of Brazil, behaves as a chronic mild disease with few clinical manifestations due to low parasite burden. These features restrict the clinical and parasitological diagnosis. The most commonly used stool examination method, Kato-Katz, becomes insensitive when the majority o...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Noya BA,Noya O,Balzan C,Cesari IM

更新日期：1992-01-01 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：:The anesthetic effect of some water-soluble anesthesic or narcotic drugs currently used in mice was tested in molluscs of the Biomphalaria genus. Sodium thiopental was very toxic to the snails resulting in high rates of mortality in all the treatment schedules tested. Cetamine base, at concentration of 0.25 mg/ml of w...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Martins-Sousa R,Negrão-Corrêa D,Bezerra F,Coelho P

更新日期：2001-04-01 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