Prevalence and control of babesiosis in the Americas.

abstract：:Cephalobium magdalensis n. sp. (Rhabditida: Diplogasteridae) found in Magdalena, Buenos Aires, and Cruznema lincolnensis n. sp. (Rhabditida: Rhabditidae) found in Lincoln, Buenos Aires, parasitizing the cricket Gryllodes laplatae (Orthoptera: Gryllidae) are described and illustrated. C. magdalensis n. sp. is character...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Reboredo GR,Camino NB

更新日期：1998-11-01 00:00:00

abstract：:A simple and rapid method for differentiating the sibling species Biomphalaria tenagophila and Biomphalaria occidentalis by agarose gel electrophoresis (AGE) is described. Snail hemolymph is used as the test sample and the red coloration of the hemoglobin fraction permits visualization of the migration patterns withou...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bailey JB,Michelson EH,Paraense WL

更新日期：1986-07-01 00:00:00

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

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

abstract：:Virulence and antibiotic resistance are significant determinants of the types of infections caused by Staphylococcus aureus and paediatric groups remain among the most commonly affected populations. The goal of this study was to characterise virulence genes of methicillin-susceptible S. aureus (MSSA) and methicillin-r...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Jiménez JN,Ocampo AM,Vanegas JM,Rodríguez EA,Garcés CG,Patiño LA,Ospina S,Correa MM

更新日期：2011-12-01 00:00:00

abstract：:The goals of the present study were to evaluate the kinetics of blood parasitism by examination of fresh blood, blood culture (BC) and PCR assays and their correlation with heart parasitism during two years of infection in Beagle dogs inoculated with the Be-78, Y and ABC Trypanosoma cruzi strains. Our results showed t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Veloso VM,Guedes PM,Andrade IM,Caldas IS,Martins HR,Carneiro CM,Machado-Coelho GL,de Lana M,Galvão LM,Bahia MT,Chiari E

更新日期：2008-09-01 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：: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 process of adhesion of three different strains of Trichomonas vaginalis to a polystyrene substrate was analysed. The process of adhesion was dependent on the time of incubation and the pH of the phosphate-buffered solution (PBS) in which the parasites were suspended. The highest indices of adhesion were observed a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Silva Filho FC,Elias CA,De Souza W

更新日期：1987-07-01 00:00:00

abstract：:The natural lignans veraguensin and grandisin have been reported to be active against Trypanosoma cruzi bloodstream forms. Aiming at the total synthesis of these and related compounds, we prepared three 2-arylfurans and eight 2,5-diarylfurans. They were evaluated for their potential as T. cruzi trypanothione reductase...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Oliveira RB,Vaz AB,Alves RO,Liarte DB,Donnici CL,Romanha AJ,Zani CL

更新日期：2006-03-01 00:00:00

abstract：:In Argentina, most information on hepatitis C virus (HCV) genotype distribution comes from studies carried out in Buenos Aires (east province). In order to identify HCV subtypes in central Argentina, nucleotide sequencing of core region was performed in samples from 36 patients living in Córdoba, the second most popul...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ré V,Contigiani M,Yoshida CF,Lampe E

更新日期：2007-12-01 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：:We report the molecular characterization of a novel reiterated family of transcribed oligo(A)-terminated, interspersed DNA elements in the genome of Trypanosoma cruzi. Steady-state level of transcripts of this sequence family appeared to be developmentally regulated, since only in the replicative forms the parasite sh...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Verbisck NV,dos Santos MR,Engman DM,Angel Chiurillo M,Ramirez JL,Araya JE,Mortara RA,da Silveira JF

更新日期：2003-01-01 00:00:00

abstract：:The present paper reports acuarioid nematodes recovered from avian hosts. A new species of the genus Schistorophus Railliet, 1916 is proposed based mainly on findings referring to ptilina, spicules and vagina. Ancyracanthopsis coronata (Molin, 1860) Chabaud & Petter, 1959 is referred again in Brazil since its proposit...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pinto RM,Vicente JJ,Muniz-Pereira LC,Noronha D

更新日期：1999-11-01 00:00:00

abstract：:Different molecular-genetic methods were used to identify a cohort of Leishmania strains from natural foci of zoonotic cutaneous leishmaniasis located in Central Asia, on the former USSR territory. The results obtained using isoenzymes, PCR, restriction fragment length polymorphisms of kDNA and molecular hybridization...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Strelkova MV,Pacheco RS,Bulat SA,Rakitskaya TA

更新日期：1997-01-01 00:00:00

abstract：:Osteoarthritis (OA) is a common painful inflammatory condition occurring mainly in the later half of life. Hip and knee are the joints mostly affected. Petiveria alliacea (tipi) popularly known as an anti-rheumatic medicine, has been used by OA patients to relief pain. This one-week cross-over double-blind trial has p...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferraz MB,Pereira RB,Coelho Andrade LE,Atra E

更新日期：1991-01-01 00:00:00

abstract：:Medical mycology has greatly benefited from the introduction of molecular techniques. New knowledge on molecular genetics has provided both theoretical and practical frameworks, permitting important advances in our understanding of several aspects of pathogenic fungi. Considering Paracoccidioides brasiliensis in parti...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Richini-Pereira VB,Bosco Sde M,Theodoro RC,Macoris SA,Bagagli E

更新日期：2009-07-01 00:00:00

abstract：:A seroepidemiological survey for toxocariasis, among 180 schoolchildren of the public schools of Sorocaba City, state of São Paulo, Brazil, was carried out from August 2000 to July 2001. ELISA test was performed using excretory and secretory antigens for the detection of IgG anti-Toxocara antibodies. Information regar...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coelho LM,Silva MV,Dini CY,Giacon Neto AA,Novo NF,Silveira EP

更新日期：2004-10-01 00:00:00

abstract：:The diagnosis of single-lesion paucibacillary leprosy remains a challenge. Reviews by expert dermatopathologists and quantitative polymerase chain reaction (qPCR) results obtained from 66 single-plaque biopsy samples were compared. Histological findings were graded as high (HP), medium (MP) or low (LP) probability of ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbieri RR,Sales AM,Illarramendi X,Moraes MO,Nery JA,Moreira SJ,Sarno EN,Machado Ade M,Bozza FA

更新日期：2014-11-01 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：:Current strategies for schistosomiasis control rely heavily on drug treatment intended to reduce morbidity and disease to an insignificant level of public health importance. This approach reduces but rarely, if ever, eliminates transmission. Indeed, snail infection rates may be little altered by such chemotherapy. Rei...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sturrock RF

更新日期：1989-10-01 00:00:00

abstract：:Acoustic signalling has been extensively studied in insect species, which has led to a better understanding of sexual communication, sexual selection and modes of speciation. The significance of acoustic signals for a blood-sucking insect was first reported in the XIX century by Christopher Johnston, studying the hear...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Vigoder Fde M,Ritchie MG,Gibson G,Peixoto AA

更新日期：2013-01-01 00:00:00

abstract：:Immunoblot analysis was used to investigate antigenic differences among clinical isolates of Leishmania amazonensis and their role in the etiology of the disease. Western blots of promastigote homogenates were analyzed with either monoclonal antibodies (MAbs) specific for the L. mexicana complex (M-4, M-6, M-9, and M-...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Leon LL,Machado GM,Barral A,de Carvalho-Paes LE,Grimaldi Júnior G

更新日期：1992-04-01 00:00:00

abstract：:This retrospective study (April-September 2003) was designed to investigate the roles of the main viruses responsible for cases of acute infantile gastroenteritis in hospitalised children up to two years of age. The viruses were identified in 64.7% (88/136) of the cases and the detection rates of rotavirus A (RVA), no...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira MS,Cubel Garcia Rde C,Xavier Mda P,Ribeiro RL,Assis RM,Mota Mdo C,Leite JP,Miagostovich MP,de Oliveira SA

更新日期：2012-12-01 00:00:00

abstract：:In the Brazilian Amazon, American tegumentary leishmaniasis (ATL) is endemic and presents a wide spectrum of clinical manifestations due, in part, to the circulation of at least seven Leishmania species. Few reports of Leishmania (Viannia) naiffi infection suggest that its occurrence is uncommon and the reported cases...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fagundes-Silva GA,Romero GA,Cupolillo E,Yamashita EP,Gomes-Silva A,Guerra JA,Da-Cruz AM

更新日期：2015-09-01 00:00:00

abstract：:Mutations in the rpoB locus confer conformational changes leading to defective binding of rifampin (RIF) to rpoB and consequently resistance in Mycobacterium tuberculosis. Polymerase chain reaction-single-strand conformation polymorphism (PCR-SSCP) was established as a rapid screening test for the detection of mutatio...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Isfahani BN,Tavakoli A,Salehi M,Tazhibi M

更新日期：2006-09-01 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：:Between 1985 and 2000, epidemiological surveys of the American tegumentary leishmaniasis (ATL) were carried out in several rural and urban communities in Espírito Santo, Brazil. A total of 100 stocks of Leishmania (comprising isolates from both human and canine hosts with ATL) were identified by two methods of molecul...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Falqueto A,Sessa PA,Ferreira AL,Vieira VP,Santos CB,Varejão JB,Cupolillo E,Porrozzi R,Carvalho-Paes LE,Grimaldi Júnior G

更新日期：2003-12-01 00:00:00

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

authors： Rosas E,Ribeiro EC

更新日期：1987-01-01 00:00:00

abstract：:To assess differentiation and relationships between Anopheles lesteri and Anopheles paraliae we established three and five iso-female lines of An. lesteri from Korea and An. paraliae from Thailand, respectively. These isolines were used to investigate the genetic relationships between the two taxa by crossing experime...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Taai K,Baimai V,Saeung A,Thongsahuan S,Min GS,Otsuka Y,Park MH,Fukuda M,Somboon P,Choochote W

更新日期：2013-05-01 00:00:00

abstract：:We used a slide culture technique to detect tubercle bacilli surviving in sputum smears (n=46) after conventional heat fixation and Ziehl-Neelsen staining. In all heat-fixed sputum smears, tubercle bacilli survived after time 0 (n=22), 24 h (n=7), 48 h (n=7), 72 h (n=4), and seven days (n=6). None of the stained sputu...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Cardoso CL,Giacomelli LR,Helbel C,Sant'Ana JJ,Martins FM,Barreto AM

更新日期：2001-02-01 00:00:00