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

abstract：:While the eosinophil's effector functions clearly can contribute to the pathogenesis of allergic diseases, the evolutionary benefit to having eosinophils as a distinct class of leukocyte is not clear, especially if one must reconsider the nominally beneficial role of eosinophils in parasite host defense, Eosinophils a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Weller PF,Lim K

更新日期：1997-01-01 00:00:00

abstract：:In this study, HIV-1 viral blood quantitation determined by Nucleic Acid Sequence Based Amplification (NASBA) was compared with other surrogate disease progression markers (antigen p24, CD4/CD8 cell counts and beta-2 microglobulin) in 540 patients followed up at São Paulo, SP, Brazil. HIV-1 RNA detection was statistic...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sitnik R,Pinho JR

更新日期：1998-05-01 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：:Lutzomyia (Lutzomyia) cruzi has been named as a probable vector of Leishmania chagasi in Corumbá, Mato Grosso do Sul, Brazil. Taxonomically L. cruzi is closely related to the L. longipalpis species complex. Females of L. cruzi and L. longipalpis are morphologically indistinguishable and associated males must be examin...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Brazil RP,Hamilton JG

更新日期：2002-04-01 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：:Five parasites are described in the lizard Amphisbaena alba (Amphisbaenidae) from the state of Par , North Brazil. Mature oocysts of Choleoeimeria amphisbaenae n. sp., are passed already mature in the faeces. They are ellipsoidal-cylindrical, average 33.7 x 22.8 m and are devoid of micropyle, oocyst residuum or polar...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lainson R

更新日期：2003-10-01 00:00:00

abstract：:The family Nematotaeniidae, tapeworms commonly found in the small intestines of amphibians and reptiles, includes 27 recognised species distributed among four genera: Bitegmen Jones, Cylindrotaenia Jewell, Distoichometra Dickey and Nematotaenia Lühe. The taxonomy of these cestodes is poorly defined, due in part to the...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Melo FT,Giese EG,Furtado AP,Soares MJ,Gonçalves EC,Vallinoto AC,Santos JN

更新日期：2011-09-01 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：:The lymneid snail Lymnaea bogotensis Pilsbry 1935 is synonymized with L. cousini Jousseaume 1887, based on morphological comparisons of the reproductive systems. The shell, renal tube, and reproductive system are described and illustrated from specimens collected in the type locality and the municipality of Paipa, Col...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Velásquez LE

更新日期：2006-11-01 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：:Triatoma sordida is a peridomestic Triatominae that could play an important role in the transmission of Trypanosoma cruzi, although its vectorial competence is not well known. The aim of this work was to evaluate two aspects of the vectorial competence: the feeding behaviour and defaecation patterns, and to compare th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Crocco LB,Catalá SS

更新日期：1996-07-01 00:00:00

abstract：:The triatomine bug Triatoma infestans probably originated in Bolivia and dispersed passively over wide areas of South America, where it is the principal vector of Trypanosoma cruzi. In the region of its probable origin this species shows colonization in two different ecotopes, so that it may be encountered in sylvatic...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pires HH,Barbosa SE,Diotaiuti L

更新日期：2000-11-01 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 schistosomal parasite plays a critical role in the development of malignant lesions in different organs. The pathogenesis of cancer is currently under intense investigation to identify reliable prognostic indices for disease detection. The objective of this paper is to evaluate certain biochemical parameters as di...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Hamed MA,Ahmed SA,Khaled HM

更新日期：2011-05-01 00:00:00

abstract：:Two new species of the Culicoides paraensis species group, C. diversus Felippe-Bauer and C. peruvianus Felippe-Bauer, are described and illustrated based on female specimens from Amazonian region of Peru. A systematic key, table with numerical characters of females, and distribution of species of the C. paraensis grou...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Felippe-Bauer ML,Cáceres AG,Silva CS,Valderrama-Bazan W,Gonzales-Perez A

更新日期：2003-12-01 00:00:00

abstract：:The black flies of the genus Inaequalium present a Neotropical distribution, with Panama at the northern limit, and the Argentinian pampas at the southern, but do not occur in the Central Amazon. This study offers a cladistic analysis establishing a hypothesis of relationships between the species of Inaequalium. A tot...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Strieder MN,Py-Daniel V

更新日期：2002-01-01 00:00:00

abstract：:Early Cretaceous flagellates with characters typical of trypanosomatids were found in the gut of sand fly larvae, as well as in surrounding debris, in Burmese amber. This discovery supports a hypothesis in which free-living trypanosomatids could have been acquired by sand fly larvae in their feeding environment and th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Poinar G Jr

更新日期：2007-08-01 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：:The primary objective of this study was to estimate the prevalence of this disease in women of childbearing age and children treated at health centres in underserviced areas of the city of Buenos Aires. Demographic and Chagas disease status data were collected. Samples for Chagas disease serology were obtained on filt...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Moscatelli G,Berenstein A,Tarlovsky A,Siniawski S,Biancardi M,Ballering G,Moroni S,Schwarcz M,Hernández S,García-Bournissen F,Cozzi AE,Freilij H,Altcheh J

更新日期：2015-08-01 00:00:00

abstract：BACKGROUND:The detection of live Mycobacterium leprae in soil and animals other than humans suggests that the environment plays a role in the transmission of leprosy. OBJECTIVE:The objective of this study was to investigate the presence of viable M. leprae in natural water sources used by the local population in five ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Arraes MLBM,Holanda MV,Lima LNGC,Sabadia JAB,Duarte CR,Almeida RLF,Kendall C,Kerr LRS,Frota CC

更新日期：2017-12-01 00:00:00

abstract：:We report the first two cases of Trichosporon mycotoxinivorans infections in Latin America. We also conducted a literature review and a microbiological investigation, including that of clinical and environmental isolates. A 30-year-old man with chronic renal failure had disseminated infection after dialysis and a 15-y...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Almeida JN Jr,Francisco EC,Barberino MGMA,Silva LVRFD Filho,Brandão OM,Colombo AL,Padovan ACB

更新日期：2017-10-01 00:00:00

abstract：:A ribosome association factor (AF) was isolated from the yeast Sacchharomyces cerevisiae. Partial amino acid sequence of AF was determined from its fragment of 25 kDa isolated by treating AF with 2-(2-nitrophenylsulfenyl)-3-methyl-3'-Bromoindolenine (BNPS-skatole). This sequence has a 86% identity to the product of th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Correia H,Medina R,Hernández A,Bustamante E,Chakraburtty K,Herrera F

更新日期：2004-11-01 00:00:00

abstract：:We investigated the cytokine profile of peripheral mononuclear cells from chronic osteomyelitis (OST) patients following in vitro stimulation with staphylococcal enterotoxin A (SEA). We demonstrate that stimulation with SEA induced prominent lymphocyte proliferation and high levels of tumour necrosis factor (TNF)-α, i...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira GF,Moraes C,Silveira AM,Correa-Oliveira R,Teixeira-Carvalho A,Martins-Filho OA,Moreno EC,do Carmo LS,Fraga LA,Malaquias LC

更新日期：2012-05-01 00:00:00

abstract：:A kinetic study of the cells present in the spleen of BALB/c mice infected with Schistosoma mansoni was carried out. The lymphocytes were evaluated phenotypically with monoclonal antibodies and the effect of splenectomy on the modulation of periovular granuloma was also investigated. The infected mice had proportional...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Arruda SM,Santoro F,Sadigursky M

更新日期：1993-01-01 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：: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：:An overview is presented of the results obtained with biodegradable sustained release devices (SRDs) containing a mixture of polymers and either isometamidium (ISMM) or ethidium. Under controlled laboratory conditions (monthly challenge with tsetse flies infected with Trypanosoma congolense) the protection period in S...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Geerts S,Brandt J,De Deken R

更新日期：1999-03-01 00:00:00

abstract：:Qualitative bacteriological analysis was carried out in two sewage treatment plants in the city of Rio de Janeiro during the period 1984-1985. Specific points of the plants were selected for the collection of affluent and effluent samples. The study involved the isolation and the identification of 540 cultures of Esch...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ribeiro Dias JC,Vicente AC,Hofer E

更新日期：1987-07-01 00:00:00

abstract：BACKGROUND:Hepatitis delta virus (HDV) infections in hepatitis B virus (HBV) carriers are the most severe form of viral hepatitis. HDV prevalence is high in the Brazilian Amazon, but studies in other regions of the country are still scarce and often underestimated its prevalence by including a small numbers of individu...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Scarponi CF,Kroon EG,Vieira DS,Fernandes AP,Gomes KB,Mota BE

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:In Brazil, the Yellow Fever virus (YFV) is endemic in the Amazon, from where it eventually expands into epidemic waves. Coastal south-eastern (SE) Brazil, which has been a YFV-free region for eight decades, has reported a severe sylvatic outbreak since 2016. The virus spread from the north toward the south o...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Abreu FVS,Delatorre E,Dos Santos AAC,Ferreira-de-Brito A,de Castro MG,Ribeiro IP,Furtado ND,Vargas WP,Ribeiro MS,Meneguete P,Bonaldo MC,Bello G,Lourenço-de-Oliveira R

更新日期：2019-01-01 00:00:00