Feeding behavior of Triatoma vitticeps (Reduviidae: Triatominae) in the state of Minas Gerais, Brazil.

abstract：:The protective effect of infectious agents against allergic reactions has been thoroughly investigated. Current studies have demonstrated the ability of some helminths to modulate the immune response of infected hosts. The objective of the present study was to investigate the relationship between Toxocara canis infect...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Zaia MG,Oliveira SR,Castro CA,Soares EG,Afonso A,Monnazzi LG,Peitl Filho O,Faccioli LH,Anibal Fde F

更新日期：2015-09-01 00:00:00

abstract：:Iron is essential for all organisms and its availability can control the growth of microorganisms; therefore, we examined the role of iron metabolism in multibacillary (MB) leprosy, focusing on the involvement of hepcidin. Erythrograms, iron metabolism parameters, pro-inflammatory cytokines and urinary hepcidin levels...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Souza VN,Malaspina TS,Campanelli AP,Ghidella C,Ura S,Dalpino D,do Nascimento DC,Latini AC

更新日期：2012-12-01 00:00:00

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：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：: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：:In this paper a discussion is made on the pathogenesis of schistosomiasis mansoni in mice, presented from the perspectives of "processes", "mediators", "strategies for study" and "disease". These concepts overlap considerably. Regarding "processes", granulomas, fibrosis and vasculitis are discussed. The role of mediat...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cheever AW

更新日期：1992-01-01 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：:A large bibliographic survey provided data on Trypanosoma cruzi serology covering the period 1948-1984. Epidemiological-demographic methods provided an estimate of 11% for the prevalence of positive serology in Brazil, by 1984. Significant temporal trends were observed for most of the Brazilian geographical regions as...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feitosa MF,Krieger H

更新日期：1991-04-01 00:00:00

abstract：:Schistosoma mansoni was introduced in the Senegal basin around 1988, due to man-made ecological changes. Since 1991, we investigate a recent but very intense focus, Ndombo, a village near the city of Richard Toll where the outbreak was first described. Four cohorts, each a random sample (+/- 400 subjects each) from th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gryseels B,Stelma F,Talla I,Polman K,Van Dam G,Sow S,Diaw M,Sturrock RF,Decam C,Niang M

更新日期：1995-03-01 00:00:00

abstract：:This study updates the geographic distributions of phlebotomine species in Central-West Brazil and analyses the climatic factors associated with their occurrence. The data were obtained from the entomology services of the state departments of health in Central-West Brazil, scientific collections and a literature revie...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Almeida PS,Andrade AJ,Sciamarelli A,Raizer J,Menegatti JA,Hermes SC,Carvalho Mdo S,Gurgel-Gonçalves R

更新日期：2015-06-01 00:00:00

abstract：:Small molecular weight compounds from Mandevilla velutina and from Eclipta prostata were found to be active against snakebite. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Mors WB

更新日期：1991-01-01 00:00:00

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：:The Americas are presently experiencing the most serious known outbreak of Zika virus (ZIKV). Here, we present a novel set of analyses using environmental characteristics, vector mosquito distributions, and socioeconomic risk factors to develop the first map to detail global ZIKV transmission risk in multiple dimensio...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Samy AM,Thomas SM,Wahed AA,Cohoon KP,Peterson AT

更新日期：2016-09-01 00:00:00

abstract：:For the first time, a jar of embalming rejects was studied in search for helminth parasite eggs. This kind of jar was used to put discarded material by Egyptian embalmers during mummification process. Ascaris lumbricoides and Taenia saginata eggs were found in the linen and strip fragment contents of the jar, dated of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Harter S,Le Bailly M,Janot F,Bouchet F

更新日期：2003-01-01 00:00:00

abstract：:The direct agglutination test (DAT) based on a freeze-dried antigen and the rK39 dipstick test were evaluated for the sero-diagnosis of visceral leishmaniasis (VL). The sensitivity and specificity of both tests were determined using sera from confirmed VL patients (n = 21), healthy controls (n = 19) and from patients ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Schallig HD,Canto-Cavalheiro M,da Silva ES

更新日期：2002-10-01 00:00:00

abstract：:The present study investigated the diagnostic value of polymerase chain reaction (PCR) performed in parallel to conventional methods at an American tegumentary leishmaniasis (ATL) referral centre for diagnosis. Accuracy parameters for PCR were calculated using 130 patients with confirmed ATL (ATL group), 15 patients e...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fagundes A,Schubach A,Paula CC,Bogio A,Antonio Lde F,Schiavoni PB,Monteiro Vde S,Madeira Mde F,Quintella LP,Valete-Rosalino CM,Vasconcellos Ede C,Azeredo-Coutinho RB,Pacheco RS,Marzochi MC,Marzochi KB

更新日期：2010-02-01 00:00:00

abstract：:CD8+ T cells have been implicated as critical effector cells in protection against the pre-erythrocytic stage of malaria in mice and humans following irradiated sporozoite immunization. Immunization experiments in animal models by several investigators have suggested different strategies for vaccination against malari...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira-Ferreira J,Daniel-Ribeiro C

更新日期：2001-02-01 00:00:00

abstract：:Five field populations of Musca domestica L. collected in poultry farms were bioassayed in order to detect possible resistance to the larvicide cyromazine in Brazil. The concentrations used were 0, 0.5, 0.1, 0.2, 0.4, 1, 2, 4 and 8 ppm. Three populations (Petrópolis, RJ, Montes Claros, MG and Promissão, SP) were resis...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pinto MC,do Prado AP

更新日期：2001-07-01 00:00:00

abstract：:This study's objective was to search for Cryptosporidium sp. in diarrheic feces from children aged zero to 12 years and cared for at medical units within Universidade Federal de Uberlândia or at a private practice in Uberlândia, State of Minas Gerais, Brazil, from September 1992 to August 1993. Three fecal samples pre...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gennari-Cardoso ML,Costa-Cruz JM,de Castro E,Lima LM,Prudente DV

更新日期：1996-09-01 00:00:00

abstract：:An experimental murine model was used to verify the viability and pathogenicity of coccoid Helicobacter pylori. For this purpose, 27 BALB/c mice were inoculated intragastrically with 1 ml broth culture (10(8)organisms/ml) of a coccoid H. pylori clinical isolate. The animals were divided into two groups. Nine were infe...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rabelo-Gonçalves EM,Nishimura NF,Zeitune JM

更新日期：2002-12-01 00:00:00

abstract：:Infusions of Aspidosperma nitidum (Apocynaceae) wood bark are used to treat fever and malaria in the Amazon Region. Several species of this family are known to possess indole alkaloids and other classes of secondary metabolites, whereas terpenoids, an inositol and the indole alkaloids harmane-3 acid and braznitidumine...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coutinho JP,Aguiar AC,dos Santos PA,Lima JC,Rocha MG,Zani CL,Alves TM,Santana AE,Pereira Mde M,Krettli AU

更新日期：2013-12-01 00:00:00

abstract：:Triatoma nitida was found in 14 (0.4%) out of 3,726 houses located in six departments across Guatemala, which were surveyed from 1994 to 1998 by the man-hour collection method. Compared to previous information, the distribution of T. nitida in Guatemala has increased from five to nine departments; the species is prese...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Monroy C,Bustamante DM,Rodas A,Rosales R,Mejía M,Tabaru Y

更新日期：2003-01-01 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：:The objectives of this work were to determine the prevalence of Babesia bovis, Babesia bigemina, and Anaplasma marginale detecting antibodies in cattle raised in the semi-arid region of the state of Bahia, Brazil, through indirect enzyme linked immunosorbent assays (ELISA) and to compare the performances of indirect e...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barros SL,Madruga CR,Araújo FR,Menk CF,de Almeida MA,Melo EP,Kessler RH

更新日期：2005-10-01 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：: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：:This article tries to demonstrate by new pathological findings (with the use of immunohistochemical technique and confocal laser microscopy) that chronic chagasic cardiomyopathy is a result of multiple factors involving myocarditis, immunodepression, severe fibrosis and microvessels dilatation and that all of these al...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Lourdes Higuchi M

更新日期：1999-01-01 00:00:00

abstract：:In this study, IgA1 levels in the milk and serum of puerperae were compared and a correlation was established between the levels of this immunoglobulin and the occurrence of parasitism. Eighty-three paired milk and serum samples were obtained from puerperal and IgA1 levels were analyzed. In addition, the presence of i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Manhani MN,Cruz JM,Ferreira DM,Abdallah VO,Souza MA

更新日期：2008-08-01 00:00:00

abstract：:An unusually high incidence of microcephaly in newborns has recently been observed in Brazil. There is a temporal association between the increase in cases of microcephaly and the Zika virus (ZIKV) epidemic. Viral RNA has been detected in amniotic fluid samples, placental tissues and newborn and fetal brain tissues. H...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Noronha Ld,Zanluca C,Azevedo ML,Luz KG,Santos CN

更新日期：2016-05-01 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