In vitro susceptibility of Plasmodium falciparum Welch field isolates to infusions prepared from Artemisia annua L. cultivated in the Brazilian Amazon.

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：:Lapachol was chemically modified to obtain its thiosemicarbazone and semicarbazone derivatives. These compounds were tested for antimicrobial activity against several bacteria and fungi by the broth microdilution method. The thiosemicarbazone and semicarbazone derivatives of lapachol exhibited antimicrobial activity a...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Souza MA,Johann S,Lima LA,Campos FF,Mendes IC,Beraldo H,Souza-Fagundes EM,Cisalpino PS,Rosa CA,Alves TM,de Sá NP,Zani CL

更新日期：2013-05-01 00:00:00

abstract：:Metalloproteinases are abundant enzymes in crotaline and viperine snake venoms. They are relevant in the pathophysiology of envenomation, being responsible for local and systemic hemorrhage frequently observed in the victims. Snake venom metalloproteinases (SVMP) are zinc-dependent enzymes of varying molecular weights...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Teixeira Cde F,Fernandes CM,Zuliani JP,Zamuner SF

更新日期：2005-03-01 00:00:00

abstract：:Dipteran polytene chromosomes provide an excellent model for understanding in species complexes, as well as for structural and functional cytogenetics. The status of species in the Culex pipiens complex is controversial and the use of polytene chromosomes for cytogenetic analysis in the subfamily Culicinae has been di...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Campos J,Andrade CF,Recco-Pimentel SM

更新日期：2003-04-01 00:00:00

abstract：:A 19-month mark-release-recapture study of Neotoma micropus with sequential screening for Leishmania mexicana was conducted in Bexar County, Texas, USA. The overall prevalence rate was 14.7% and the seasonal prevalence rates ranged from 3.8 to 26.7%. Nine incident cases were detected, giving an incidence rate of 15.5/...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Raymond RW,McHugh CP,Witt LR,Kerr SF

更新日期：2003-03-01 00:00:00

abstract：:This paper evaluates CHCl3 and CH3OH extracts of the stem bark, branches and leaves of Drimys brasiliensis and drimane sesquiterpenes isolated from the stem bark against strains of Leishmania amazonensis and Leishmania braziliensis promastigotes and Plasmodium falciparum trophozoites. All of the extracts and compounds...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Claudino VD,da Silva KC,Cechinel Filho V,Yunes RA,Delle Monache F,Giménez A,Salamanca E,Gutierrez-Yapu D,Malheiros A

更新日期：2013-04-01 00:00:00

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

authors： Digiani MC,Cremonte F

更新日期：2001-04-01 00:00:00

abstract：:This article presents an overview of the currently available drugs nifurtimox (NFX) and benznidazole (BZN) used against Trypanosoma cruzi, the aetiological agent of Chagas disease; herein we discuss their limitations along with potential alternatives with a focus on ergosterol biosynthesis inhibitors (EBI). These comp...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Urbina JA

更新日期：2009-07-01 00:00:00

abstract：:Within the country of Brazil, Santa Catarina is a major shellfish producer. Detection of viral contamination is an important step to ensure production quality and consumer safety during this process. In this study, we used a depuration system and ultraviolet (UV) disinfection to eliminate viral pathogens from artifici...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Corrêa Ade A,Rigotto C,Moresco V,Kleemann CR,Teixeira AL,Poli CR,Simões CM,Barardi CR

更新日期：2012-02-01 00:00:00

abstract：:Two of the major problems facing the Amazon - human migration from the other areas and uncontrolled deforestation - constitute the greatest risk for the establishment of endemic Chagas disease in this part of Brazil. At least 18 species of triatomines had been found in the Brazilian Amazon, 10 of them infected with Tr...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coura JR,Junqueira AC,Boia MN,Fernandes O

更新日期：1999-01-01 00:00:00

abstract：:The insect fat body plays major roles in the intermediary metabolism, in the storage and transport of haemolymph compounds and in the innate immunity. Here, the overall structure of the fat body of five species of mosquitoes (Aedes albopictus, Aedes fluviatilis, Culex quinquefasciatus, Anopheles aquasalis and Anophele...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Martins GF,Serrão JE,Ramalho-Ortigão JM,Pimenta PF

更新日期：2011-09-01 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：: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

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

更新日期：1997-01-01 00:00:00

abstract：:St. Louis encephalitis virus (SLEV) and West Nile virus (WNV) present ecological and antigenic similarities and are responsible for serious human diseases. In addition, WNV is a significant pathogen in terms of equine health. The purpose of our study was to analyse the seroprevalence of SLEV and WNV in equine sera col...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Tauro L,Marino B,Diaz LA,Lucca E,Gallozo D,Spinsanti L,Contigiani M

更新日期：2012-06-01 00:00:00

abstract：:The authors investigated the distribution of lectin receptors on Trypanosoma cruzi blood forms collected from mice inoculated with, respectively, the drug-resistant and drug-sensitive strains VL-10 and CL, and treated with the two standard active nitroheterocyclic compounds nifurtimox and benznidazole used for treatme...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fontes G,Romanha AJ,Pereira ME,Brener Z

更新日期：1991-07-01 00:00:00

abstract：:Raoultella planticola is an emerging zoonotic pathogen that is associated with rare but life-threatening cases of bacteremia, biliary tract infections, and urinary tract infections. Moreover, increasing antimicrobial resistance in the organism poses a potential threat to public health. In spite of its importance as a ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Huang YT,Chuang WY,Ho BC,Wu ZY,Kuo RC,Ko M,Liu PY

更新日期：2018-08-27 00:00:00

abstract：:The present report describes an alternative method for in vitro detection of HIV-1-specific antibody secretion in 24h of culture employing as stimulant of peripheral blood mononuclear cells the disrupted inactivated whole virus adsorbed onto microwells in a commercial ELISA kit plates. The results obtained from this t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Caterino-de-Araujo A

更新日期：1992-04-01 00:00:00

abstract：:Some species of Amphibia and Reptilia are listed as new hosts of spargana, from material deposited in the Helminthological Collection of Oswaldo Cruz Institute. It is discussed the difficulties in identifying the larvae (Sparganum) and also the identification of adults of Luheella species from South America. The histo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rego AA,Schäffer GV

更新日期：1992-01-01 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：:Soluble antigens (Ag) from Paracoccidioides brasiliensis, Histoplasma capsulatum and Aspergillus fumigatus were prepared and standardized by double immunodiffusion (DID) and immunoelectroosmophoresis (IEOP). No difference in sensitivity was observed between the two techniques; 100% of standard patient sera were positi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ferreira-da-Cruz MF,Galvão-Castro B,Wanke B

更新日期：1985-07-01 00:00:00

abstract：:In this article, Médicos Sin Fronteras (MSF) Spain faces the challenge of selecting, piecing together, and conveying in the clearest possible way, the main lessons learnt over the course of the last seven years in the world of medical care for Chagas disease. More than two thousand children under the age of 14 have be...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Villa L,Morote S,Bernal O,Bulla D,Albajar-Vinas P

更新日期：2007-10-30 00:00:00

abstract：:Sandfly prevalence in the Kani tribe settlements of Western Ghats in India was investigated. A total of 1,279 sandflies comprising 17 species was obtained. Sandfly abundance showed a negative correlation (r = -0.97, p = 0.003) with increase in altitudinal ranges from 0-1,000 m. When sandfly samples were grouped accord...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ranganathan S,Swaminathan S

更新日期：2015-04-01 00:00:00

abstract：:Rhodnius ecuadoriensis is the second most important vector of Chagas Disease (CD) in Ecuador. The objective of this study was to describe (and compare) the life cycle, the feeding and defecation patterns under laboratory conditions of two populations of this specie [from the provinces of Manabí (Coastal region) and Lo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Villacís AG,Arcos-Terán L,Grijalva MJ

更新日期：2008-11-01 00:00:00

abstract：:This was a retrospective descriptive study on a series of cases of schistosomal myeloradiculopathy (SMR) and the aim was to investigate the incidence of this disease and its clinical and epidemiological characteristics in cases diagnosed at three healthcare units in Pernambuco, Brazil between 1994-2006. The data were ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Araújo KC,Silva Cda R,Santos AG,Barbosa CS,Ferrari TC

更新日期：2010-07-01 00:00:00

abstract：:Epstein-Barr virus (EBV) plays a major role in liver pathology. Similar to other members of the herpesvirus family, EBV establishes a persistent infection in more than 90% of adults. The aim of this study was to evaluate the impact of EBV and chronic hepatitis C co-infection (HCV) on biochemical and immunological resp...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Shoman S,Nabil M,Tabl A,Ghanem H,Kafrawy SE

更新日期：2014-09-01 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

abstract：:A new species of planorbid mollusc, Plesiophysa dolichomastix (Greek dolichos = long, mastix = flagellum), collected from Lagoa da Pedra, municipality of Santa Rosa, state of Goiás, Brazil (15 degrees 01'S, 47 degrees 13'W) is described. It is indistinguishable by the shell characters from the five congeneric species ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Paraense WL

更新日期：2002-06-01 00:00:00

abstract：:Genes associated with wound healing have been shown to be risk factors for cutaneous leishmaniasis (CL) which is caused by Leishmania braziliensis. In this study, we examined whether the genes previously associated with CL influenced the clinical outcome. Patients were genotyped and retrospectively classified as respo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： da Hora AS,de Almeida LF,do Lago TS,Machado PR,Castellucci LC

更新日期：2020-03-02 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：:The immunogenicity of anti-malaria synthetic vaccine SPf66 was tested in a region of the Colombian middle Atrato river. The specific serum antibodies against SPf66 were quantified in vaccinees and placebo injected controls for a two-years period post-immunization. The frequency of individuals showing seroconversion of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lopera TM,Restrepo M,Blair S,García HI

更新日期：1998-07-01 00:00:00