When are we going to celebrate the centenary of the discovery of efficient treatment for congenital toxoplasmosis?

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：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：:Studies on the sandfly fauna to evaluate natural infection indexes are still limited in the Brazilian Amazon, a region with an increasing incidence of cutaneous leishmaniasis. Here, by using a multiplex polymerase chain reaction directed to Leishmania kDNA and hybridisation, we were able to identify L. (Viannia) subge...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Araujo-Pereira T,Pita-Pereira D,Boité MC,Melo M,Costa-Rego TA,Fuzari AA,Brazil RP,Britto C

更新日期：2017-01-01 00:00:00

abstract：:Cholinesterase and acid phosphatase (AP), but not alkaline phosphatase activities, were detected in cytosolic and membrane-bound fractions of ivermectin resistant and susceptible Haemonchus contortus infective-stage larvae. Some differences in acetylcholinesterase activity of cytosolic fractions and in the AP activity...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Giménez-Pardo C,Martínez-Grueiro MM,Gómez-Barrio A,Rodríguez-Caabeiro F

更新日期：2004-03-01 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：:The cases of five patients with unusual manifestations of acute schistosomiasis mansoni are described in this paper. One patient developed skin lesions, three displayed diverse lung involvement, and one presented pyogenic liver abscesses caused by Staphylococcus aureus. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lambertucci JR,Rayes AA,Barata CH,Teixeira R,Gerspacher-Lara R

更新日期：1997-09-01 00:00:00

abstract：:A polysaccharide-rich fraction (ATF) of medicinal mushroom Agaricus brasiliensis was evaluated on the candidacidal activity, H2O2 and nitric oxide (NO) production, and expression of mannose receptors by murine peritoneal macrophages. Mice received three intraperitoneal (i.p.) injections of ATF and after 48 h their per...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Martins PR,Gameiro MC,Castoldi L,Romagnoli GG,Lopes FC,Pinto AV,Loyola W,Kaneno R

更新日期：2008-05-01 00:00:00

abstract：:Two techniques for rapid diagnosis, immunofluorescence (IFAT) and enzyme immunoassay (EIA), have been compared with virus isolation in tissue culture for the detection of respiratory syncytial virus (RSV) in specimens of nasopharyngeal secretions. The specimens were obtained from children under five years of age suffe...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Siqueira MM,Ferreira V,Nascimento JP

更新日期：1986-04-01 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：:Acute cases of schistosomiasis have been found on the coastal area of Pernambuco, Brazil, due to environmental disturbances and disorderly occupation of the urban areas. This study identifies and spatially marks the main foci of the snail host species, Biomphalaria glabrata on Itamaracá Island. The chaotic occupation ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbosa CS,Araújo KC,Antunes L,Favre T,Pieri OS

更新日期：2004-01-01 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：:The dual function of eosinophils has been evidenced in protective immunity against parasites as well as in pathological manifestations during allergic disorders. We have demonstrated that a new class of IgE receptors, Fc epsilon RII/CD23, was involved in the functional duality of eosinophils and other proinflammatory ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Nutten S,Trottein F,Gounni AS,Papin JP,Capron A,Capron M

更新日期：1997-01-01 00:00:00

abstract：:This study aims to investigate the importance of the serum factors present in the plasma of resistant Biomphalaria tenagophila snails, when transferred to susceptible conspecific. Susceptible B. tenagophila (CF) received plasma from resistant B. tenagophila (Taim), and both were later infected with Schistosoma mansoni...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coelho JR,Bezerra FS

更新日期：2006-02-01 00:00:00

abstract：:A longitudinal study was conducted in Manaus, Brazil, to monitor changes of adult Aedes aegypti (L.) abundance. The objectives were to compare mosquito collections of two trap types, to characterise temporal changes of the mosquito population, to investigate the influence of meteorological variables on mosquito collec...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Degener CM,Ázara TM,Roque RA,Codeço CT,Nobre AA,Ohly JJ,Geier M,Eiras ÁE

更新日期：2014-12-01 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：: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：:The alpha-glycerophosphate dehydrogenase (alpha-GPDH) activity in flight muscles of Panstrongylus megistus and Triatoma sordida, vectors of Chagas disease in Brazil, was studied. Both species showed higher enzymatic activities in fliers than in non-fliers insects. T. sordida exhibited a higher proportion of flier inse...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Soares RP,Santoro MM

更新日期：2000-09-01 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：:A study was undertaken to search for DNA recombinant Schistosoma mansoni proteins responsible for eliciting an antibody response from the host at a very early phase after infection. A S. mansoni adult worm cDNA expression library was screened using pooled sera from baboons with four weeks of infection. Based on their ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kanamura HY,Hancock K,Rodrigues V,Damian RT

更新日期：2002-07-01 00:00:00

abstract：:Leishmania braziliensis is the etiological agent of American mucosal leishmaniasis, one of the most severe clinical forms of leishmaniasis. Here, we report the assembly of the L. braziliensis (M2904) genome into 35 continuous chromosomes. Also, the annotation of 8395 genes is provided. The public availability of this ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： González-de la Fuente S,Camacho E,Peiró-Pastor R,Rastrojo A,Carrasco-Ramiro F,Aguado B,Requena JM

更新日期：2018-12-10 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 enzyme-linked immunosorbent assay (Elisa) was used to examine sera of 104 children and adults in Jos, Plateau State, Nigeria for anti-toxocaral antibodies, out of which 31 (29.8%) were reactive. The seropositive rates were 30.4% for adults, 29.6% for children, 34% for females and 25.9% for males. However, the diff...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ajayi OO,Duhlinska DD,Agwale SM,Njoku M

更新日期：2000-03-01 00:00:00

abstract：:Host lipids have been implicated in the pathogenesis of Toxoplasma gondii infection. To determine if Toxoplasma infection influences the lipid status in the normal host, we assessed serum lipids of Swiss-Webster mice during infection with the BGD-1 strain (type-2) at a series of time points. Mice were bled at days zer...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Milovanović I,Vujanić M,Klun I,Bobić B,Nikolić A,Ivović V,Trbovich AM,Djurković-Djaković O

更新日期：2009-03-01 00:00:00

abstract：:Benznidazole (Bz) exhibits toxic side effects in animal studies and clinical use. Reductive metabolism of Bz in liver microsomes modulates the duration of its chemotherapeutic effect and its toxicity. The rate of this metabolism depends on age and is less intense in newborns and youngsters than in adults. In the prese...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bulffer RF,Castro JA,Fanelli SL

更新日期：2011-05-01 00:00:00

abstract：:The Kilombero Malaria Project (KMP) attempts to define operationally useful indicators of levels of transmission and disease and health system relevant monitoring indicators to evaluate the impact of disease control at the community or health facility level. The KMP is a longitudinal community based study (N = 1024) i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Teuscher T

更新日期：1992-01-01 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：:Diphyllobothriasis is an infection of the small intestine by the broad tapeworm Diphyllobothrium sp. The associated symptomatology is nonspecific, but megaloblastic anemia is a well-described complication. Although the infection is common in temperate regions, descriptions in South America have so far been limited to ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Santos FL,de Faro LB

更新日期：2005-10-01 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：:BACKGROUND Chagas disease, resulting from Trypanosoma cruzi infections, continues to be a health concern mainly in Latin American countries where the parasite is endemic. The laboratory diagnosis of a chronic infection is determined through serological assays for antibodies against T. cruzi and several tests are avail...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sáez-Alquezar A,Junqueira ACV,Durans ADM,Guimarães AV,Corrêa JA,Provance DW Jr,Cabello PH,Coura JR,Viñas PA

更新日期：2020-01-01 00:00:00

abstract：:A comparative study was undertaken on the immunogenic properties of 63kDa glycoproteins obtained from five different strains/species of Leishmania and assessed in C57BL/10 mice. The humoral immune response was assessed by ELISA against the five different antigens of the immunized animals. The cellular immune response ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Dabés Guimarães TM,de Toledo VD,da Costa CA,da Costa RT,Genaro O,Williams P,Mayrink W

更新日期：1996-01-01 00:00:00