Borrelia Burgdorferi S L
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Soroprevalência e fatores associados a Borrelia em cães, equinos e humanos expostos a carrapatos em um assentamento rural do sul do Brasil
Resumo Os objetivos do presente estudo foram realizar um levantamento sorológico de cães, cavalos e humanos altamente expostos a picadas de carrapatos para anticorpos anti-B. burgdorferi s.l., identificar as espécies de carrapatos presentes, e determinar os fatores de risco associados a soropositividade em um assentamento rural do Estado do Paraná, sul d
Rev. Bras. Parasitol. Vet.. Publicado em: 08/12/2016
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2. Fluorescent membrane markers elucidate the association of Borrelia burgdorferi with tick cell lines
This study aimed to describe the association of Borrelia burgdorferi s.s. with ixodid tick cell lines by flow cytometry and fluorescence and confocal microscopy. Spirochetes were stained with a fluorescent membrane marker (PKH67 or PKH26), inoculated into 8 different tick cell lines and incubated at 30°C for 24 h. PKH efficiently stained B. burgdorferi with
Braz J Med Biol Res. Publicado em: 20/06/2016
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3. First record of Borrelia burgdorferi B31 strain in Dermacentor nitens ticks in the northern region of Parana (Brazil)
The aim of this study was to investigate the presence of DNA of Borrelia burgdorferi sensu lato (s.l.) in ticks that feed on horses used for animal traction in rural Jataizinho, Parana, Brazil. Between February and June 2008, a total of 224 ticks was collected of which 75% were identified as Dermacentor nitens and 25% as Amblyomma cajenense. To amplify B. bu
Braz. J. Microbiol.. Publicado em: 2013-09
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4. Freqüência de anticorpos anti-Erhlichia canis, Borrelia burgdorferi e antígenos de Dirofilaria immitis em cães na microrregião Ilhéus-Itabuna, Bahia, Brasil
Para avaliação de positividade para antígenos de Dirofilaria immitis, anticorpos anti-Borrelia burgdorferi e anti-Ehrlichia canis foram coletadas 200 amostras de sangue de cães, 100 no município de Ilhéus e 100 no de Itabuna. Foi utilizado o "kit" Snap 3DX (IDEXX Laboratories) para realização das sorologias. Não se observou nenhum animal positivo pa
Revista Brasileira de Parasitologia Veterinária. Publicado em: 2007-09
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5. Caracterização molecular de cepas de Borrelia burgdorferi sensu lato isoladas na região de Belgrado, Sérvia
Trata-se do primeiro relato de identificação e caracterização molecular de cepas de Borrelia burgdorferi sensu lato isoladas na região de Belgrado, Sérvia. As cepas A1, A2 e M1, isoladas de Ixodes ricinus, pertencem à Borrelia burgdorferi sensu stricto, enquanto a cepa K1, isolada de Apodemus flavocollis é uma mistura de Borrelia afzelii e B. burgdor
Brazilian Journal of Microbiology. Publicado em: 2007-03
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6. Genetic Heterogeneity of Borrelia burgdorferi Sensu Lato in Ixodes ricinus Ticks Collected in Belgium
Borrelia burgdorferi sensu lato (s.l.), the etiological agent of Lyme disease, is transmitted by the bite of Ixodes ricinus. Four hundred eighty-nine ticks, collected in four locations of a region of southern Belgium where Lyme disease is endemic, were examined for the presence of the spirochete. In a PCR test with primers that recognize a chromosomal gene o
American Society for Microbiology.
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7. Complement Evasion by Borrelia burgdorferi: Serum-Resistant Strains Promote C3b Inactivation
The most characteristic features of the Lyme disease pathogens, the Borrelia burgdorferi sensu lato (s.l.) group, are their ability to invade tissues and to circumvent the immune defenses of the host for extended periods of time, despite elevated levels of borrelia-specific antibodies in serum and other body fluids. Our aim in the present study was to determ
American Society for Microbiology.
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8. Immunoglobulin G2 confers protection against Borrelia burgdorferi infection in LSH hamsters.
We showed that immune serum and its immunoglobulin fractions, specifically immunoglobulin G2 (IgG2), could confer complete protection to irradiated hamsters challenged with the Lyme disease spirochete. Immune serum and its immunoglobulin fractions also killed Borrelia burgdorferi in vitro. Depletion of complement in vivo abrogated the ability of IgG2 to conf
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9. Development of destructive arthritis in vaccinated hamsters challenged with Borrelia burgdorferi.
We present the first direct evidence that adverse effects, particularly severe destructive arthritis, can develop in vaccinated hamsters after challenge with Borrelia burgdorferi sensu lato isolates. Hamsters were vaccinated with a whole-cell preparation of Formalin-inactivated B. burgdorferi sensu stricto isolate C-1-11 in adjuvant. A severe destructive art
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10. Characterization of Borrelia burgdorferi strains isolated from Ixodes pacificus ticks in California.
In a survey of 1,714 adult Ixodes pacificus ticks collected in northern California, 24 (1.4%) were found to be infected with spirochetes that reacted with an anti-Borrelia burgdorferi polyvalent conjugate in direct immunofluorescence tests. Eleven isolates of B. burgdorferi from these ticks were characterized by monoclonal antibody, polyacrylamide gel electr
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11. An enzootic transmission cycle of Lyme borreliosis spirochetes in the southeastern United States
Lyme borreliosis, or Lyme disease (LD), is a tick-borne zoonotic infection of biomedical significance, caused by Borrelia burgdorferi sensu lato (s.l.) spirochetes and transmitted by Ixodes species ticks. It usually circulates among wildlife vertebrate reservoirs and vector ticks but may infect humans, causing multisystem problems. In far western and norther
National Academy of Sciences.
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12. Borrelia burgdorferi-specific T lymphocytes induce severe destructive Lyme arthritis.
This is the first documentation that Borrelia burgdorferi-specific T lymphocytes are involved in the pathogenesis of Lyme arthritis. We present direct evidence that T lymphocytes obtained from inbred LSH hamsters vaccinated with a whole-cell preparation of Formalin-inactivated B. burgdorferi sensu stricto isolate C-1-11 in adjuvant conferred on naive recipie