Chronic Chagas cardiomyopathy: a review of the main pathogenic mechanisms and the efficacy of aetiological treatment following the BENznidazole Evaluation for Interrupting Trypanosomiasis (BENEFIT) trial.

abstract：:Anti-human immunodeficiency virus type 1 (HIV-1) "binding antibodies" (antibodies capable of binding to synthetic peptides or proteins) occur throughout HIV-1 infection, are high-titered and highly cross-reactive, as confirmed in this study by analyzing plasma from B and F genotype HIV-1 infected individuals. Plasma f...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bongertz V,Teixeira SL,Grinztejn B,Pilotto JH,Veloso VG,Morgado MG,Bastos FI,Ouverney EP

更新日期：2005-02-01 00:00:00

abstract：:The restriction fragment length polymorphism of the 195 bp repeated DNA sequence of Trypanosoma cruzi was analyzed among 23 T. cruzi stocks giving a reliable picture of the whole phylogenetic variability of the species. The profiles observed with the enzymes Hinf I and Hae III were linked together and supported the ex...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bastrenta B,Bosseno MF,Barnabé C,Tibayrenc M,Brenière SF

更新日期：1999-05-01 00:00:00

abstract：:The Brazilian variant of human immunodeficiency virus type 1 (HIV-1) subtype B, (serotype B"-GWGR), has a tryptophan replacing the proline in position 328 the HIV-1 envelope. A longer median time period from infection to acquired immunodeficiency syndrome (AIDS) for serotype B (B"-GWGR) infected subjects compared to t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Casseb J,Montanheiro P,Komninakis S,Brito A,Duarte AJ

更新日期：2004-02-01 00:00:00

abstract：:Direct smear examination using Ziehl-Neelsen staining for pulmonary tuberculosis (PTB) diagnosis is inexpensive and easy to use, but has the major limitation of low sensitivity. Rapid molecular methods are becoming more widely available in centralized laboratories, but they depend on timely reporting of results and st...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Michelon CT,Rosso F,Schmid KB,Sperhacke RD,Oliveira MM,Kritski AL,Rezende L Jr,Costa ER,Ribeiro AW,Verza M,Cafrune PI,Silva MS,Kuhleis D,Zaha A,Rossetti ML

更新日期：2011-03-01 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：:Studies were conducted to determine the selection of humans, chickens and rabbits by Culicidae in three different environments in the province of Chaco, Argentina. Mosquitoes were collected fortnightly using cylindrical metal traps containing animal bait (chickens and rabbits). The mosquitoes were collected between Ju...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Stein M,Zalazar L,Willener JA,Almeida FL,Almirón WR

更新日期：2013-08-01 00:00:00

abstract：:The population biology of three populations of Panstrongylus megistus was compared to determine possible influence on the behaviour and epidemiological importance of this species. The results demonstrated differences in terms of egg eclosion time, nymphal mortality and development rates, and feeding and defaecation ra...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbosa SE,Soares RP,Pires HH,Diotaiuti L

更新日期：2001-08-01 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 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：:With the currently known distribution of genera and species of the tribe Triatomini Jeannel, 1919, maps and diagrams were prepared, showing the geographical area occupied by the species and their respective dispersion in grades of latitude and altitude. Two genera are not treated: Panstrongylus Berg, 1879, already pub...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Galvão C,Jurberg J,Carcavallo RU,Segura CA,Galíndez Girón I,Curto de Casas SI

更新日期：1998-01-01 00:00:00

abstract：:The leishmanicidal activity of four batches of meglumine antimoniate, produced in Farmanguinhos-Fiocruz, Brazil (TAMs), was assessed and compared to Glucantime-Aventis Pharma Ltda. Using the amastigote-like in vitro model, the active concentrations of Sb v varied from 10microg/ml to 300microg/ml for L. (L.) chagasi an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Morais-Teixeira Ed,Carvalho AS,Costa JC,Duarte SL,Mendonça JS,Boechat N,Rabello A

更新日期：2008-06-01 00:00:00

abstract：:The global malaria situation has scarcely improved in the last 100 years, despite major advances in our knowledge of the basic biology, epidemiology and clinical basis of the disease. Effective malaria control, leading to a significant decrease in the morbidity and mortality attributable to malaria, will require a mul...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Riley EM

更新日期：2000-01-01 00:00:00

abstract：:Mycobacterium fortuitum is a rapidly growing nontuberculous Mycobacterium that can cause a range of diseases in humans. Complications from M. fortuitum infection have been associated with numerous surgical procedures. A protective immune response against pathogenic mycobacterial infections is dependent on the granulom...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Silva TR,Petersen AL,Santos Tde A,Almeida TF,Freitas LA,Veras PS

更新日期：2010-08-01 00:00:00

abstract：:The first steps in leishmaniasis are critical in determining the evolution of the disease. Major advances have recently been done in understanding this crucial moment. Fundamental research in parasite-vector interaction, parasite biology, insect saliva, and vertebrate host response have shed new light and uncovered a ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Almeida MC,Vilhena V,Barral A,Barral-Netto M

更新日期：2003-10-01 00:00:00

abstract：:This study aimed to analyse changes in the spatial distribution of Lutzomyia longipalpis in Posadas, an urban area located in northeastern Argentina. Data were obtained during the summer of 2007 and 2009 through two entomological surveys of peridomiciles distributed around the city. The abundance distribution pattern ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fernández MS,Santini MS,Cavia R,Sandoval AE,Pérez AA,Acardi S,Salomón OD

更新日期：2013-11-01 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：: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：: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：:Genomic DNA fragments from males of Psychodopygus wellcomei were isolated and shown to be useful as sensitive diagnostic probes for positively separating individuals of this species from those of Ps. complexus. These two members of the Ps. squamiventris series are found sympatrically in foci of cutaneous leishmaniasis...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ready PD,Lainson R,Shaw JJ,Souza AA

更新日期：1991-01-01 00:00:00

abstract：:The principal vector of malaria in eastern Venezuela, Anopheles aquasalis, is exophagic and exophilic. Control using indoor insecticide house sprays has failed to lower the number of malaria cases. Therefore, studies were initiated in two villages of the eastern coastal state of Sucre to better understand this vector'...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Berti J,Zimmerman R,Amarista J

更新日期：1993-07-01 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：:The chromatin of Trypanosoma congolense was analyzed by electron microscopy. The chromatin is organized as nucleosome filaments but does not form a 30 nm fiber. There are five groups of histones, including a histone H1-like protein, which as a molecular weight within the range of the core histones, and is extremely hy...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Schlimme W,Burri M,Betschart B,Hecker H

更新日期：1994-04-01 00:00:00

abstract：:Trypanosoma rangeli, a parasite generally considered non-pathogenic for man, is the second species of human trypanosome to be reported from the New World. The geographical distribution of T. rangeli often overlaps with that of T. cruzi, the same vertebrate and invertebrate hosts being infected. Their differentiation t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Guhl F,Vallejo GA

更新日期：2003-06-01 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：: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：: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：:The subject of this conference reflects the scientific community's interest in seeking to understand the complex causal web whose various social, economic, and biological components interact in the production and reproduction of schistosomiasis and its control in relation to community participation. From the onset, th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbosa FS

更新日期：1995-03-01 00:00:00

abstract：:The aims of this study were to characterise the ground-level larval habitats of the mosquito Culex quinquefasciatus, to determine the relationships between habitat characteristics and larval abundance and to examine seasonal larval-stage variations in Córdoba city. Every two weeks for two years, 15 larval habitats (na...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Grech M,Sartor P,Estallo E,Ludueña-Almeida F,Almirón W

更新日期：2013-09-01 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：:Aspartyl proteases are a class of enzymes that include the yeast aspartyl proteases and secreted aspartyl protease (Sap) superfamilies. Several Sap superfamily members have been demonstrated or suggested as virulence factors in opportunistic pathogens of the genus Candida. Candida albicans, Candida tropicalis, Candida...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Parra-Ortega B,Cruz-Torres H,Villa-Tanaca L,Hernández-Rodríguez C

更新日期：2009-05-01 00:00:00