The bloodsucking biting midges of Argentina (Diptera: Ceratopogonidae).

abstract：:A survey was conducted in the hemodialysis population of the state of Tocantins, Brazil, aiming to assess the prevalence of hepatitis B virus (HBV) and hepatitis C virus (HCV) infections, to analyze associated risk factors, and also to investigate these viruses genotypes distribution. During January and March 2001, al...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Souza KP,Luz JA,Teles SA,Carneiro MA,Oliveira LA,Gomes AS,Dias MA,Gomes SA,Yoshida CF,Martins RM

更新日期：2003-07-01 00:00:00

abstract：:Thermophilic campylobacters were isolated from three sewage plants in Rio de Janeiro, RJ, Brazil and identified. Laboratory analysis of 390 sewage samples showed the presence of 169 thermophilic strains. The results demonstrated that human and animal pathogenic biotypes could be isolated from activated sludge during t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lauria-Filgueiras AL,Hofer E

更新日期：1998-05-01 00:00:00

abstract：:In 2004, the urban presence of Lutzomyia longipalpis was recorded for the first time in Formosa province. In 2006, the first autochthonous case of human urban visceral leishmaniasis (VL) was recorded in Misiones in the presence of the vector, along with some canine VL cases. After this first case, the vector began to ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bravo AG,Quintana MG,Abril M,Salomón OD

更新日期：2013-12-01 00:00:00

abstract：:The global emergence and spread of malaria parasites resistant to antimalarial drugs is the major problem in malaria control. The genetic basis of the parasite's resistance to the antimalarial drug chloroquine (CQ) is well-documented, allowing for the analysis of field isolates of malaria parasites to address evolutio...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sutar SK,Gupta B,Ranjit M,Kar SK,Das A

更新日期：2011-02-01 00:00:00

abstract：:Maternal malnutrition during the lactation period in early development may have long-term programming effects on adult offspring. We evaluated the combined effects of parasitological behaviour and histopathological features and malnutrition during lactation. Lactating mice and their pups were divided into a control gr...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Corrêa CL,Lisboa PC,Oliveira Ed,Moura EG,Oliveira RM,Gomes AC,Machado-Silva JR

更新日期：2011-08-01 00:00:00

abstract：:The author studied by the complement fixation test the influenza virus strains isolated in Rio de Janeiro during the 1973 epidemic. He prepared immunesera in hamsters by the inoculation of the allantoic fluid from infected chick embryos with each of the 7 isolated strains and the standard strains. The soluble antigens...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lacorte JG

更新日期：1976-01-01 00:00:00

abstract：:The evaluation of the activity of the aqueous and ethyl acetate extracts of the leaves of Piper regnellii was tested against gram-positive and gram-negative bacteria. The aqueous extract displayed a weak activity against Staphylococcus aureus and Bacillus subtilis with minimal inhibitory concentration (MIC) and minima...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pessini GL,Dias Filho BP,Nakamura CV,Cortez DA

更新日期：2003-12-01 00:00:00

abstract：:We analyzed prospectively 326 laboratory-confirmed, uncomplicated malarial infections (46.3% due to Plasmodium vivax, 35.3% due to P. falciparum, and 18.4% mixed-species infections) diagnosed in 162 rural Amazonians aged 5-73 years. Thirteen symptoms (fever, chills, sweating, headache, myalgia, arthralgia, abdominal p...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： da Silva-Nunes M,Ferreira MU

更新日期：2007-06-01 00:00:00

abstract：BACKGROUND:Increasing evidence suggests that human papillomavirus (HPV) intratype variants (specific lineages and sublineages) are associated with pathogenesis and progression from HPV infection to persistence and the development of cervical cancer. OBJECTIVES:This study aimed to verify the prevalence of HPV infection...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Oliveira GR,Vieira VC,Ávila EC,Finger-Jardim F,Caldeira TD,Gatti FA,Gonçalves CV,Oliveira SG,da Hora VP,Soares MA,de Martinez AM

更新日期：2017-07-01 00:00:00

abstract：:Clinical and laboratory evidence is reviewed which shows that there is a great deal of variation in the susceptibility of Schistosoma mansoni to oxamniquine. This variation occurs both among endemic regions and within endemic regions in Brazil and Kenya. It is genetically controlled. It is suggested that the parasite ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Kinoti GK

更新日期：1987-01-01 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：:The tick-bird relationship of 56 specimens of birds (Passeriformes and Columbiformes) collected in the city of Curitiba, State of Paraná, between 1990 and 1995, among which 102 specimens of Ixodes (Multidentatus) auritulus were found and analyzed. New host records were also produced including the first report of I. au...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Arzua M,Barros-Battesti DM

更新日期：1999-09-01 00:00:00

abstract：:Studies on natural infection by Leishmania spp of sandflies collected in endemic and nonendemic areas can provide important information on the distribution and intensity of the transmission of these parasites. This study sought to investigate the natural infection by Leishmaniain wild female sandflies. The specimens w...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira EF,Casaril AE,Mateus NL,Murat PG,Fernandes WS,Oshiro ET,Oliveira AG,Galati EA

更新日期：2015-12-01 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：:Chagas cardiomyopathy is the most frequent and most severe manifestation of chronic Chagas disease, and is one of the leading causes of morbidity and death in Latin America. Although the pathogenesis of Chagas cardiomyopathy is incompletely understood, it may involve several mechanisms, including parasite-dependent my...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rassi A Jr,Marin JA Neto,Rassi A

更新日期：2017-03-01 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：:Chimpanzees are being used in the study of immune response to Plasmodium falciparum malaria pre-erythrocytic stages (MPES). Responses induced by immunisation with recombinant/synthetic antigens and by irradiated sporozoites are being evaluated in a model system that is phylogenetically close to humans and that is amen...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Thomas AW,Slierendregt B,Mons B,Druilhe P

更新日期：1994-01-01 00:00:00

abstract：:In an endemic area of cutaneous leishmaniasis in Rio de Janeiro State where a mule had been found infected, a systematic search among equines was performed, resulting in the detection of Leishmania parasites in skin lesions of 30.8% of the animals, which included horses and mules. The eventual role of equines in the e...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Aguilar CM,Rangel EF,Deane LM

更新日期：1986-10-01 00:00:00

abstract：:Nontuberculous mycobacteria are ubiquitous and saprophytic organisms that have been implicated in a wide spectrum of diseases due to an increasing number of immunocompromised patients. The natural resistance of atypical mycobacteria to classical antituberculous drugs has encouraged research into new chemotherapeutic a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Silva JL,Mesquita AR,Ximenes EA

更新日期：2009-07-01 00:00:00

abstract：:In this study we compared two polymerase chain reaction (PCR) methods using either 16S ribosomal RNA (rRNA) or 23S rRNA gene primers for the detection of different Leptospira interrogans serovars. The performance of these two methods was assessed using DNA extracted from bovine tissues previously inoculated with sever...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： D'Andrea A,Martinez YZ,Alduina R,Monteverde V,Molina CF,Vitale M

更新日期：2012-02-01 00:00:00

abstract：:Toxoplasma gondii has a very wide intermediate host range and is thought to be able to infect all warm blooded animals. The parasite causes a spectrum of different diseases and clinical symptoms within the intermediate hosts and following infection most animals develop adaptive humoral and cell-mediated immune respons...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Innes EA,Bartley PM,Maley S,Katzer F,Buxton D

更新日期：2009-03-01 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：: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：:In C57Bl/6 strain mice vaccinated with radiation-attenuated cercariae of Schistosoma mansoni immune elimination of challenge parasites occurs in the lungs. Leucocytes were recovered from the lungs of such mice by bronchoalveolar lavage and cultured in vitro with larval antigen; the profile of cytokines released was th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Wilson RA

更新日期：1992-01-01 00:00:00

abstract：:During an epidemiological survey of acute respiratory infection in Rio de Janeiro, among 208 adenovirus isolates, we found two strains that we were not able, by a standard neutralization procedure, to distinguish between type 3 or 7. However, DNA restriction pattern for the two strains with different enzymes were anal...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Moraes MT,da Silva M,Leite JP,Nascimento JP

更新日期：1998-03-01 00:00:00

abstract：:The objective of this study was to evaluate the relationship between toxocariasis frequency and demographic, environmental, sanitary variables, eosinophylia, and other intestinal parasites in a rural population of Argentina. Serological examination of 100 individuals was carried out by using ELISA technique for the de...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Chiodo P,Basualdo J,Ciarmela L,Pezzani B,Apezteguía M,Minvielle M

更新日期：2006-06-01 00:00:00

abstract：:In a recent issue of Memórias do Instituto Oswaldo Cruz, published in Rio de Janeiro in February 2014 (109: 87-92), Adami et al. have published a survey reporting Mansonella parasite prevalence in the Amazon Region. This report makes a useful contribution to the existing knowledge of filarial parasite distribution wit...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Luz SL,Crainey JL,Shelley AJ,Rubio M

更新日期：2014-07-01 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：:A rational method of search for natural neolignans of desired structures is outlined. This involves consultation of a collection of chemical profiles of plant families. The profiles are assembled considering the biosynthetic class (in the present case lignoids), subclass (neolignans), structural types (neolignan skele...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gottlieb OR

更新日期：1991-01-01 00:00:00

abstract：:Infection of C3H/He mice with the Peruvian strain of Trypanosoma cruzi (Biodeme type I, Z2b), a macrophagotropic strain, determined severe parasitism of macrophages, necrosis of the spleen, and high host mortality. In the present study, pentoxifylline (PTX), an inhibitor of TNF-alpha was investigated on its action upo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Andrade SG,Magalhães Ldos A,Pessina DH

更新日期：2008-02-01 00:00:00