1. Evaluation of the immunogenicity of Schistosoma mansoni egg surface

Abstract INTRODUCTION Immunogenicity of Schistosoma mansoni egg surface was examined to determine whether intact eggshells have lower antigenicity than ruptured eggs. METHODS: Swiss Webster mice were inoculated with intact or ultrasonicated S. mansoni eggs isolated from infected human feces. Mice were separated into four groups of six animals each and im

Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-09

2. Lyophilized allografts without pre-treatment with glutaraldehyde are more suitable than cryopreserved allografts for pulmonary artery reconstruction

Various methods are available for preservation of vascular grafts for pulmonary artery (PA) replacement. Lyophilization and cryopreservation reduce antigenicity and prevent thrombosis and calcification in vascular grafts, so both methods can be used to obtain vascular bioprostheses. We evaluated the hemodynamic, gasometric, imaging, and macroscopic and micro

Braz J Med Biol Res. Publicado em: 04/12/2015

3. [RETRACTED ARTICLE] Differential expression of CC chemokines (CCLs) and receptors (CCRs) by human T lymphocytes in response to different Aggregatibacter actinomycetemcomitans serotypes

ABSTRACT In Aggregatibacter actinomycetemcomitans, different serotypes have been described based on LPS antigenicity. Recently, our research group has reported a differential immunogenicity when T lymphocytes were stimulated with these different serotypes. In particular, it was demonstrated that the serotype b of A. actinomycetemcomitans has a stronger capac

J. Appl. Oral Sci.. Publicado em: 2015-12

4. Differential expression of CC chemokines (CCLs) and receptors (CCRs) by human T lymphocytes in response to different Aggregatibacter actinomycetemcomitans serotypes

In Aggregatibacter actinomycetemcomitans, different serotypes have been described based on LPS antigenicity. Recently, our research group has reported a differential immunogenicity when T lymphocytes were stimulated with these different serotypes. In particular, it was demonstrated that the serotype b of A. actinomycetemcomitans has a stronger capacity to tr

J. Appl. Oral Sci.. Publicado em: 2015-10

5. Whole-cell antigenicity data support sequence-based kinetoplastid taxonomy

Early immunological data, obtained by immunodiffusion and immunoelectrophoresis, on the whole-cell antigenicity of kinetoplastid protozoa were retrieved and used to construct a dendrogram of antigenic distances. Remarkably, they supported the same taxonomic conclusions as analyses based on DNA and protein sequence data.

Mem. Inst. Oswaldo Cruz. Publicado em: 2013-04

6. Production and characterization of recombinant chimeras C and D of Clostridium botulinum / Produção e caracterização de quimeras recombinantes C e D de Clostridium botulinum

Bovine Botulism is a lethal intoxication caused by the ingestion of the neurotoxins produced by Clostridium botulinum types C and D that inhibit the release of acetylcholine at the neuromuscular junction leading to death by flaccid paralysis. It produces important economic losses, being a major cause of casualties in cattle in several regions of Brazil. The

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012

7. Partial VP1 sequencing of Brazilian infectious bursal disease virus strains

Infectious bursal disease virus (IBDV) is classified according to the antigenicity and virulence into classical virulent (cv), very virulent (vv), and antigenic variant strains. The molecular basis for the IBDV antigenic variation is well established and is associated to the capsid protein, VP2 (gene VP2 of segment A), whereas both VP2 and the RNA-dependent

Braz. J. Microbiol.. Publicado em: 2012-09

8. CARACTERIZAÇÃO MOLECULAR DE LENTIVÍRUS DE PEQUENOS RUMINANTES ISOLADOS NO BRASIL / MOLECULAR CHARACTERIZATION OF Small ruminant lentiviruses ISOLATED IN BRAZIL

CAEV and MVV have been considered genetically distinct but antigenically related as pathogens of goats and sheep, respectively. Moreover, it was demonstrated that these viruses are constantly and easily breaking the barrier between sheep and goats, sheep being infected with CAEV and MVV infecting goats. Like all lentiviruses, the genome of CAEV has a high mu

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/12/2011

9. Antibody response against recombinant proteins based on Plasmodium vivax merozoite antigens in individuals from a rural community of the Brazilian Amazonia / Resposta de anticorpos contra proteínas recombinantes baseadas em antígenos de merozoítos de Plasmodium vivax em indivíduos de uma comunidade rural da Amazônia brasileira

In recent years we studied various aspects of the naturally acquired immune response in individuals from different endemic areas of the Amazon region exposed to malaria. For this purpose we used recombinant proteins based on P. vivax blood stage antigens considered candidates for a vaccine against vivax malaria. In the present study, we focused on 396 indivi

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/05/2011

10. Estudo microbiológico e de endotoxinas de canais radiculares com infecções endodônticas primárias e avaliação da antigenicidade do conteúdo infeccioso contra macrófagos na produção de citocinas pró-inflamatórias / Investigation of microorganisms and endotoxins in primary endodontic infection and evaluation of antigenicity infectious content against macrophages by the levels of pro-inflammatory cytokines

Bactérias Gram-negativas (BG-) e seu sub-produto [Lipopolisacarídeo (LPS) - endotoxina) são capazes de estimular células a produzirem citocinas pró-inflamatórias envolvidas na destruíção tecidual periapical. Os objetivos propostos foram: 1) analisar os diferentes métodos de LAL para quantificação de endotoxinas, revelando o (s) que melhor (es) se

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2011

11. Pregnancy malaria: cryptic disease, apparent solution

Malaria during pregnancy can be severe in non-immune women, but in areas of stable transmission, where women are semi-immune and often asymptomatic during infection, malaria is an insidious cause of disease and death for mothers and their offspring. Sequelae, such as severe anaemia and hypertension in the mother and low birth weight and infant mortality in t

Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-08

12. Production of polyclonal antisera using recombinant coat proteins of Grapevine leafroll-associated virus 2 and Grapevine virus B.

The objective of this work was to produce and characterize specific antisera against Brazilian isolates of Grapevine leafroll-associated virus 2 (GLRaV-2) and Grapevine virus B (GVB), developed from expressed coat proteins (CPs) in Escherichia coli, and to test their possible use for the detection of these two viruses in diseased grapevines. The coat prote

Pesquisa Agropecuária Brasileira. Publicado em: 2011