Molecular comparison of topotypic specimens confirms Anopheles (Nyssorhynchus) dunhami Causey (Diptera: Culicidae) in the Colombian Amazon.


:The presence of Anopheles (Nyssorhynchus) dunhami Causey in Colombia (Department of Amazonas) is confirmed for the first time through direct comparison of mtDNA cytochrome c oxidase I (COI) barcodes and nuclear rDNA second internal transcribed spacer (ITS2) sequences with topotypic specimens of An. dunhami from Tefé, Brazil. An. dunhami was identified through retrospective correlation of DNA sequences following misidentification as Anopheles nuneztovari s.l. using available morphological keys for Colombian mosquitoes. That An. dunhami occurs in Colombia and also possibly throughout the Amazon Basin, is of importance to vector control programs, as this non-vector species is morphologically similar to known malaria vectors including An. nuneztovari, Anopheles oswaldoi and Anopheles trinkae. Species identification of An. dunhami and differentiation from these closely related species are highly robust using either DNA ITS2 sequences or COI DNA barcode. DNA methods are advocated for future differentiation of these often sympatric taxa in South America.


Mem Inst Oswaldo Cruz


Ruiz F,Linton YM,Ponsonby DJ,Conn JE,Herrera M,Quiñones ML,Vélez ID,Wilkerson RC




Has Abstract


2010-11-01 00:00:00














  • Sequencing and identification of expressed Schistosoma mansoni genes by random selection of cDNA clones from a directional library.

    abstract::We have initiated a gene discovery program in Schistosoma mansoni based on the technique of Expressed Sequence Tags (ESTs), i.e. partial sequences of cDNAs obtained from single passes in automatic DNA sequences. ESTs can be used to identify genes on the basis of their homology with sequences from other species deposit...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Franco GR,Simpson AJ,Pena SD

    更新日期:1995-03-01 00:00:00

  • Human chronic chagasic cardiopathy: participation of parasite antigens, subsets of lymphocytes, cytokines and microvascular abnormalities.

    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

    pub_type: 杂志文章,评审


    authors: de Lourdes Higuchi M

    更新日期:1999-01-01 00:00:00

  • Faecal examination and PCR to detect Strongyloides venezuelensis in experimentally infected Lewis rats.

    abstract::More sensitive methodologies are necessary to improve strongyloidiasis diagnosis. This study compared the sensitivities of the McMaster modified technique and polymerase chain reaction (PCR) assays, both performed in faecal samples. Lewis rats were subcutaneously infected with 4,000, 400 or 40 infective third-stage la...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Marra NM,Chiuso-Minicucci F,Machado GC,Zorzella-Pezavento SF,França TG,Ishikawa LL,Amarante AF,Sartori A,Amarante MR

    更新日期:2010-02-01 00:00:00

  • Geographic distribution of phlebotomine sandfly species (Diptera: Psychodidae) in Central-West Brazil.

    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

    pub_type: 杂志文章


    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

  • New host and locality records for Tetrameres (Gynaecophila) spirospiculum Pinto & Vicente, 1995 (Nematoda: Tetrameridae), with new morphological data.

    abstract::We report the finding of Tetrameres spirospiculum Pinto & Vicente, 1995 from Theristicus melanopis melanopis (Threskiornithidae) from Patagonia, Argentina. These constitute new host and locality records. We propose the assignation of this species to the subgenus T. (Gynaecophila) Gubanov, 1950, based on the presence o...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Digiani MC,Cremonte F

    更新日期:2001-04-01 00:00:00

  • [Complement fixation reaction in the typing of influenza viruses isolated in Rio de Janeiro].

    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

    pub_type: 杂志文章


    authors: Lacorte JG

    更新日期:1976-01-01 00:00:00

  • Description of Lutzomyia (Lutzomyia) falquetoi sp. nov. (Diptera: Psychodidae, Phlebotominae) a new species from the state of Espírito Santo, Brazil.

    abstract::Lutzomyia (Lutzomyia) falquetoi, sp. nov. (Diptera: Psychodidae, Phlebotominae) is described from the state of Espírito Santo, Brazil. This new species belongs to the series longipalpis and is easily distinguished from the other members of this taxon by the presence of five well-developed spines and a pre-apical spini...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Pinto Ide S,Dos Santos CB

    更新日期:2007-05-01 00:00:00

  • The study of insect blood-feeding behaviour. 1: Feeding equipment, physical and endogenous factors, dose effect analysis, and diet destination.

    abstract::Experimental techniques that we have found useful during our studies of insect blood-feeding behaviour are reviewed. Some of the principal findings resulting from these techniques are discussed. Where directly applicable, the work of others is included, but no complete review of the subject has been attempted. ...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Friend WG,Smith JJ

    更新日期:1987-01-01 00:00:00

  • [Action of a molluscacide (Bayluscide-SRB) from the Dynatech R/D Company in lakes of northeastern Brazil--Sergipe, Brazil].

    abstract::To study the action of molluscicide nine ponds were selected: 3 of them lying in Maruim municipality, 29 km far from north Aracaju, the State capital, and 6 ponds in Itabaianinha municipality, 118 km far from south Aracaju. This study was carried out for 16 months. Environmental parameters observed were those thought ...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Rosas E,Ribeiro EC

    更新日期:1987-01-01 00:00:00

  • Molecular and serological characterization of occult hepatitis B among blood donors in Maputo, Mozambique.

    abstract:BACKGROUND:Occult hepatitis B virus (HBV) - characterized by the absence of detectable HBsAg in the presence of HBV DNA - represents a potential threat for blood safety. OBJECTIVES:This study was conducted with the aim to investigate the serological and molecular characterization of occult HBV infection (OBI) among bl...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Mabunda N,Zicai AF,Ismael N,Vubil A,Mello F,Blackard JT,Lago B,Duarte V,Moraes M,Lewis L,Jani I

    更新日期:2020-09-23 00:00:00

  • Sand fly evolution and its relationship to Leishmania transmission.

    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

    pub_type: 杂志文章


    authors: Ready P

    更新日期:2000-07-01 00:00:00

  • Mechanisms of cell accumulation induced by Mycobacterium bovis BCG.

    abstract::Mycobacteria, specially Mycobacterium tuberculosis are among the micro-organisms that are increasing dramatically the number of infections with death, all over the world. A great number of animal experimental models have been proposed to investigate the mechanisms involved in the host response against these intracellu...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Menezes-de-Lima-Júnior O,Henriques M das G

    更新日期:1997-01-01 00:00:00

  • Crossing experiments detect genetic incompatibility among populations of Triatoma brasiliensis Neiva, 1911 (Heteroptera, Reduviidae, Triatominae).

    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

    pub_type: 杂志文章


    authors: Costa J,Almeida CE,Dujardin JP,Beard CB

    更新日期:2003-07-01 00:00:00

  • Characterization of Endotrypanum (Kinetoplastida: Trypanosomatidae), a unique parasite infecting the neotropical tree sloths (Edentata).

    abstract::This article reviews current concepts of the biology of Endotrypanum spp. Data summarized here on parasite classification and taxonomic divergence found among these haemoflagellates come from our studies of molecular characterization of Endotrypanum stocks (representing an heterogenous population of reference strains ...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Franco AM,Grimaldi G Jr

    更新日期:1999-03-01 00:00:00

  • The role of cytokines in the pathogenesis of hepatic granulomatous disease in Schistosoma mansoni infected mice.

    abstract::Cytokines are important in the cell-mediated response to Schistosoma mansoni eggs. We have found that Th2 cytokine responses (e.g. IL-4 and IL-5) are augmented after egg laying begins while Th1 responses (IL-2 and IFN-gamma) are down regulated in S. mansoni infected mice. Treatment of mice with anti-IL-5 monoclonal an...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Cheever AW,Xu Y,Macedonia JG,Cox T,Hieny S,Sher A

    更新日期:1992-01-01 00:00:00

  • Trypanosoma (Herpetosoma) rangeli Tejera, 1920: an updated review.

    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

    pub_type: 杂志文章,评审


    authors: Guhl F,Vallejo GA

    更新日期:2003-06-01 00:00:00

  • First report on the presence of Biomphalaria straminea in the municipality of Jaboticatubas, State of Minas Gerais, Brazil.

    abstract::This is the first report on occurrence of Biomphalaria straminea in the district of São José de Almeida (municipality of Jaboticatubas) State of Minas Gerais, Brazil. The presence of B. glabrata and B. tenagophila had already been reported in this area. Such municipality is part of the metropolitan region of Belo Hori...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Massara CL,Carvalho Odos S,Caldeira RL,Jannotti-Passos LK,Schall VT

    更新日期:2002-01-01 00:00:00

  • Hepatitis B infection among patients attending a sexually transmitted diseases clinic in Rio de Janeiro, Brazil.

    abstract::Hepatitis B virus (HBV) has a low endemicity in Rio de Janeiro, Brazil. Sexual transmission must play an important role in this virus, but the prevalence and risk factors have never been properly investigated. The aim of this paper is to determine the prevalence and risk factors for HBV infection in patients attending...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Oliveira LH,Silva IR,Xavier BL,Cavalcanti SM

    更新日期:2001-07-01 00:00:00

  • Effect of secondary infection on epithelialisation and total healing of cutaneous leishmaniasis lesions.

    abstract:BACKGROUND:Cutaneous leishmaniasis (CL) generally presents with a single or several localised cutaneous ulcers without involvement of mucous membranes. Ulcerated lesions are susceptible to secondary contamination that may slow the healing process. OBJECTIVE:This study verified the influence of non-parasitic wound infe...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Antonio LF,Lyra MR,Saheki MN,Schubach AO,Miranda LFC,Madeira MF,Lourenço MCDS,Fagundes A,Ribeiro ÉADS,Barreto L,Pimentel MIF

    更新日期:2017-09-01 00:00:00

  • Immuno-epidemiology of Schistosoma mansoni infections in a recently exposed community in Senegal.

    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

    pub_type: 杂志文章


    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

  • The impact of Chagas disease control in Latin America: a review.

    abstract::Discovered in 1909, Chagas disease was progressively shown to be widespread throughout Latin America, affecting millions of rural people with a high impact on morbidity and mortality. With no vaccine or specific treatment available for large-scale public health interventions, the main control strategy relies on preven...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Dias JC,Silveira AC,Schofield CJ

    更新日期:2002-07-01 00:00:00

  • Host characteristics do not affect community structure of ectoparasites on the fishing bat Noctilio leporinus (L., 1758) (Mammalia: Chiroptera).

    abstract::Patterns of parasite abundance and prevalence are thought to be influenced by several host characteristics such as size, sex, developmental stage, and seasonality. We examined two obligatory ectoparasites of the bat Noctilio leporinus (L.) (Chiroptera, Noctilionidae) to test whether prevalence and abundance of Noctili...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Moura MO,Bordignon MO,Graciolli G

    更新日期:2003-09-01 00:00:00

  • BCG Moreau Rio de Janeiro: an oral vaccine against tuberculosis--review.

    abstract::The vaccine Bacillus of Calmette Guérin (BCG) was originally developed in France as an oral vaccine against tuberculosis. The oral use of this vaccine was replaced by the parenteral route in almost all countries after the Lubeck disaster. In contrast, Brazil retained the oral delivery of the vaccine until the mid-seve...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 历史文章,杂志文章,评审


    authors: Benévolo-de-Andrade TC,Monteiro-Maia R,Cosgrove C,Castello-Branco LR

    更新日期:2005-08-01 00:00:00

  • Study of virulence factors in coagulase-negative staphylococci isolated from newborns.

    abstract::Coagulase-negative staphylococci (CNS) have been identified as the etiological agent in various infections and are currently the microorganisms most frequently isolated in nosocomial infections. However, little is known about the virulence factors produced by CNS that contribute to the pathogenesis of infections cause...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Cunha Mde L,Rugolo LM,Lopes CA

    更新日期:2006-09-01 00:00:00

  • Peripheral eosinophilia as an indicator of meningitic angiostrongyliasis in exposed individuals.

    abstract::The diagnosis of meningitic angiostrongyliasis (MA) is based on clinical criteria. A lumbar puncture is used as a diagnostic tool, but it is an invasive procedure. The blood eosinophil levels are also assessed and used in the diagnosis of this disease. We enrolled 47 patients with serologically proven MA and 131 contr...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Sawanyawisuth K,Sawanyawisuth K,Senthong V,Limpawattana P,Intapan PM,Tiamkao S,Jitpimolmard S,Chotmongkol V,Barrett-Connor E

    更新日期:2010-11-01 00:00:00

  • Haemolymph and fat body metallo-protease associated with Enterobacter cloacae infection in the bloodsucking insect, Rhodnius prolixus.

    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

    pub_type: 杂志文章


    authors: Feder D,Salles JM,Garcia ES,Azambuja P

    更新日期:1998-11-01 00:00:00

  • Evaluation of the impact of Bacillus thuringiensis serovar israelensis and Temephos, used for the control of Simulium (Chirostilbia) pertinax Kollar, 1832 (Diptera, Simuliidae) on the associated entomofauna, Paraty, state of Rio de Janeiro, Brazil.

    abstract::The study was set up to evaluate the impact of two commercial larvicide formulations, Bacillus thuringiensis serovar israelensis base (Bti) at 15 ppm/1 min and temephos at 0.03 ppm of active ingredient, used to control Simulium pertinax populations, on associated non-target entomofauna occupying the same breeding site...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: de Araújo-Coutinho CJ,Cunha Ade B,Serra-Freire NM,de Mello RP

    更新日期:2003-07-01 00:00:00

  • In house colorimetric reverse hybridisation assay for detection of the mutation most frequently associated with resistance to isoniazid in Mycobacterium tuberculosis.

    abstract::Mutations in the katG gene have been identified and correlated with isoniazid (INH) resistance in Mycobacterium tuberculosis isolates. The mutation AGC-->ACC (Ser-->Thr) at katG315 has been reported to be the most frequent and is associated with transmission and multidrug resistance. Rapid detection of this mutation c...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Verza M,Maschmann Rde A,Silva MS,Dalla Costa ER,Ribeiro MO,Rosso F,Suffys PN,Tortoli E,Marcelli F,Zaha A,Rossetti ML

    更新日期:2009-08-01 00:00:00

  • Merozoite surface protein 2 allelic variation influences the specific antibody response during acute malaria in individuals from a Brazilian endemic area.

    abstract::The antibody response to Plasmodium falciparum parasites of naturally infected population is critical to elucidate the role of polymorphic alleles in malaria. Thus, we evaluated the impact of antigenic diversity of repetitive and family dimorphic domains of the merozoite surface protein 2 (MSP-2) on immune response of...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Sallenave-Sales S,Faria CP,Zalis MG,Daniel-Ribeiro CT,Ferreira-da-Cruz Mde F

    更新日期:2007-06-01 00:00:00

  • Remodeling of hepatic vascular changes after specific chemotherapy of schistosomal periportal fibrosis.

    abstract::Hepatosplenic schistosomiasis was the first human disease in which the possibility of extensive long standing hepatic fibrosis being degraded and removed has been demonstrated. When such changes occurred, the main signs of portal hypertension (splenomegaly, esophageal varices) progressively disappeared, implying that ...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Andrade ZA,Baptista AP,Santana TS

    更新日期:2006-09-01 00:00:00