Naegleria Fowleri
Mostrando 1-12 de 82 artigos, teses e dissertações.
-
1. Meningoencephalitis due to Naegleria fowleri in cattle in southern Brazil
Resumo Naegleria fowleri é uma ameba de vida livre, comumente encontrada no meio ambiente, principalmente em água doce e no solo. Este protozoário é ocasionalmente associado a casos fatais de doença do sistema nervoso central em seres humanos e espécies animais. No presente trabalho, um caso de meningoencefalite por Naegleria fowleri em um bovino na re
Rev. Bras. Parasitol. Vet.. Publicado em: 06/06/2019
-
2. Presence of rotavirus and free-living amoebae in the water supplies of Karachi, Pakistan
ABSTRACT Rotavirus and pathogenic free-living amoebae are causative agents of important health problems, especially for developing countries like Pakistan where the population has limited access to clean water supplies. Here, we evaluated the prevalence of rotavirus and free-living amoebae (Acanthamoeba spp., Balamuthia mandrillaris, Naegleria fowleri) in dr
Rev. Inst. Med. trop. S. Paulo. Publicado em: 01/06/2017
-
3. Prevalence of potentially pathogenic free-living amoebae from Acanthamoeba and Naegleria genera in non-hospital, public, internal environments from the city of Santos, Brazil
Acanthamoeba and Naegleria species are free-living amoebae (FLA) found in a large variety of natural habitats. The prevalence of such amoebae was determined from dust samples taken from public non-hospital internal environments with good standards of cleanliness from two campuses of the same University in the city of Santos (SP), Brazil, and where young and
Brazilian Journal of Infectious Diseases. Publicado em: 2009-12
-
4. Primary amoebic meningoencephalitis: first reported case from Rohtak, North India
A fatal case of primary amoebic encephalitis (PAM) in a 20 year old boy, a proven case of acute leukemic leukemia (ALL) type L2, in remission is described. No history of swimming could be elicited. The clinical presentation, the isolation of the amoeba from the cerebrospinal fluid (CSF), the poor response to amphotericin B, and the ultimately fatal outcome a
Brazilian Journal of Infectious Diseases. Publicado em: 2009-06
-
5. Meningoencefalitis amebiana primaria: comunicacion de dos nuevos casos Venezolanos
Primary amebic menigoencephalitis (PAM) is rare. Two cases of PAM in Venezuelan patients are described. Case 1, a 10 year-old male with headache, fever, vomiting. The patient swam in a water reservoir before the onset of his disease. He died during his third hospital day. Case 2, a 23 year-old male with a history of headache, fever, vomiting, drowsiness, and
Arquivos de Neuro-Psiquiatria. Publicado em: 2006-12
-
6. Meningoencefalite por Naegleria fowleri: estudo epidemiológico no Estado de Anzoategui, Venezuela
Um caso de meningoencefalite amebiana primária, causada por Naegleria fowleri, foi diagnosticada no município de Independência no Estado de Anzoategui, Venezuela. Este caso motivou a realização deste estudo epidemiológico com o objetivo de identificar amebas de vida livre nessa área. Foram colhidas amostras representativas de água e realizadas análi
Revista da Sociedade Brasileira de Medicina Tropical. Publicado em: 2006-06
-
7. Thermal ecology of Naegleria fowleri from a power plant cooling reservoir.
The pathogenic, free-living amoeba Naegleria fowleri is the causative agent of human primary amebic meningoencephalitis. N. fowleri has been isolated from thermally elevated aquatic environments worldwide, but temperature factors associated with occurrence of the amoeba remain undefined. In this study, a newly created cooling reservoir (Clinton Lake, Illinoi
-
8. Effect of thermal additions on the density and distribution of thermophilic amoebae and pathogenic Naegleria fowleri in a newly created cooling lake.
Pathogenic Naegleria fowleri is the causative agent of fatal human amoebic meningoencephalitis. The protozoan is ubiquitous in nature, and its presence is enhanced by thermal additions. In this investigation, water and sediments from a newly created cooling lake were quantitatively analyzed for the presence of thermophilic amoebae, thermophilic Naegleria spp
-
9. Resistance of highly pathogenic Naegleria fowleri amoebae to complement-mediated lysis.
Weakly pathogenic and nonpathogenic Naegleria spp. are readily lysed by human and guinea pig complement. Highly pathogenic Naegleria fowleri are resistant to complement-mediated lysis. Electrophoretic analysis of normal human serum (NHS) incubated with pathogenic or nonpathogenic Naegleria spp. demonstrates that amoebae activate the complement cascade, resul
-
10. Evaluation of the Indirect Fluorescent-Antibody Technique for Identification of Naegleria Species
The indirect fluorescent-antibody technique was used to assess a rapid method for identification of amoebae belonging to the genus Naegleria. Thirty-eight Naegleria and eight other limax amoeba strains were examined by using one N. gruberi and two N. fowleri antisera. All pathogenic Naegleriae, most of which originated from fatal cases of primary amoebic men
-
11. Genotyping Naegleria spp. and Naegleria fowleri isolates by interrepeat polymerase chain reaction.
All six Naegleria species recognized to date were studied by interrepeat polymerase chain reaction (PCR). Priming at repeat sequences, which are known to be variable among eukaryotes, yielded electrophoretic DNA banding patterns that were specific for any single species. With a single PCR and simple gel electrophoresis, species determination could be perform
-
12. Use of monoclonal antibodies to distinguish pathogenic Naegleria fowleri (cysts, trophozoites, or flagellate forms) from other Naegleria species.
Monoclonal antibodies (MAbs) reactive to the pathogenic amoeba Naegleria fowleri were analyzed by enzyme-linked immunosorbent assay (ELISA), indirect immunofluorescence assay, Western blotting (immunoblotting), and radioimmunoprecipitation assay (RIPA). Two MAbs (3A4 and 5D12) showed reactivity by ELISA with all N. fowleri strains tested and no reactivity wi