Immunological Challenge
Mostrando 13-24 de 189 artigos, teses e dissertações.
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13. Resposta imune de suínos imunizados pela via nasal com proteínas de roptrias do Toxoplasma gondii
Toxoplasma gondii is an obligate intracellular parasite that infects a wide range of hosts including human beings. Herbivores are the main domestic infection sources for humans, and pork is considered the most important route of transmission. Recent decades have witnessed a great increasing in the number of technologies and immunological research to produce
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/03/2011
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14. Immune response to dna vaccine expressing transferrin binding protein a gene of Pasteurella multocida
Haemorrhagic Septicaemia (HS), an acute and fatal disease of cattle and buffalo is primarily caused by serotype B:2 or E:2 of Pasteurella multocida. The transferrin binding protein A (TbpA) has been found to act as immunogen and potent vaccine candidate in various Gram negative bacteria including P. multocida. The present study was carried out to evaluate th
Brazilian Journal of Microbiology. Publicado em: 2011-06
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15. Modulação da apresentação antigênica por células dendríticas derivadas de monócitos utilizando diferentes produtos virais do HIV: potencial de utilização em vacina terapêutica. / Modulation of monocyte-derived dendritic cell antigen presentation using different HIV antigenic: potential use in therapeutic vaccine.
Despite more than 20 years of effort, the design of an effective HIV-1 vaccine remains an enormous challenge. In this scenario, new immunological approaches must be considered. Monocytes from HIV-serodiscordant couples and non HIV exposed controls were differentiated in vitro into dendritic cells (MoDC), pulsed with different virus antigens and cultured with
Publicado em: 2010
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16. Coabitação com um parceiro doente: avaliações das alterações neuroimunes e da forma de comunicação / Cohabitation with a sick cage mate: evaluations of neuroimune changes and of the way of communication
Several papers are showing relevant neuroimmune regulation and/or modulation during stress or diseases. The incorporation of biological and psychological models of humans conditions are of high relevance in neuroscience. Animals exhibit a variety of adaptative behaviors for communicating with conspecifics; communication between animals can be visual, tactile
Publicado em: 2010
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17. Efeito da imunoterapia com Dermatophagoides pteronyssinus na resposta clínica e imunológica ao camarão / Effect of immunotherapy with Dermatophagoides pteronyssinus in the clinical and immunological response to shrimp
Objective: The objective of this study was to determine changes in clinical and immunological response to shrimp after immunotherapy with Dermatophagoides pteronyssinus. Methods: We studied 35 allergic subjects to Dermatophagoides pteronyssinus (Der p), submitted to skin tests to mites, cockroach, shrimp, recombinant tropomyosin, and dog, cat and fungi. The
Publicado em: 2009
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18. Estudos biológico, imunológico e genético de amostras do vírus da raiva isoladas de morcegos no Estado do Rio de Janeiro - Sudeste, Brasil / Biological, immunological and genetic studies of rabies virus samples isolated from bats in Rio de Janeiro State - Southeast, Brazil
In the present study we analyzed the biological behavior in mice of 10 rabies virus samples isolated from haematophagous and non-haematophagous bats in Rio de Janeiro State, its genetic characterization from genes N and G, and we also studied the response of mice vaccinated with cell culture rabies vaccine, produced with the Pitman-Moore strain, after viral
Publicado em: 2008
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19. RESPOSTA SOROLÓGICA E PROTEÇÃO FETAL CONTRA O VÍRUS DA DIARRÉIA VIRAL BOVINA (BVDV) EM VACAS PRENHES IMUNIZADAS COM UMA VACINA EXPERIMENTAL ATENUADA / SEROLOGICAL RESPONSE AND FETAL PROTECTION AGAINST BOVINE VIRAL DIARRHEA VIRUS (BVDV) IN PREGNANT COWS IMMUNIZED WITH AN EXPERIMENTAL ATTENUATED VACCINE
The major goal of bovine viral diarrhea virus (BVDV) vaccines is to confer fetal protection and thus prevent reproductive losses and the production of persistently infected (PI) calves. This dissertation reports the antibody response and fetal protection in pregnant cows conferred by an experimental vaccine containing two attenuated strains of BVDV (BVDV-1 a
Publicado em: 2008
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20. Clinical and biochemical alterations secondary to chronic unpredictable stress and oxidative stress in rats. / Alterações clínicas e bioquímicas decorrentes do estresse crônico imprevisível e do estresse oxidativo em ratos.
The study of stress effects in different animal models help to clarify signalization mechanisms involved in human diseases. The present project was divided in two parts. Firstly, we investigated the effects of chronic unpredictable stress (CUS) on the course of experimental autoimmune encephalomyelitis (EAE) and circulating corticosterone (CORT) concentratio
Publicado em: 2008
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21. FONTES DE ÃLEOS DA DIETA NA COMPOSIÃÃO DO MÃSCULO, LIPOPROTEÃNAS PLASMÃTICAS, IMUNIDADE INATA E RESISTÃNCIA DE TILÃPIAS DO NILO (Oreochromis niloticus L. 1757) / Dietary oil sources in muscle composition, plasmatic lipoprotein, innate immunity and resistance of Nile tilapia (Oreochromis niloticus L. 1757)
The objetive of this study to determine the influence of some dietary fatty acids sources on the chemistry composition, fatty acids profile and total cholesterol in muscle; in cholesterol quantity, triglycerides and plasmatic lipoprotein; in some innate immunity functions; in hematopoiesis; and, in resistence of the Nile tilapia (Oreochromis niloticus L.) to
Publicado em: 2008
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22. Immunological evaluation of the intestinal mucosa of broiler chicks treated with Lactobacillus Spp. and challenged with Salmonella Enteritidis
This study aimed at the antibody production by intestinal mucosa of broilers chicks were orally inoculated with Lactobacillus spp. at one and/or 21 days of age, and subsequently challenged with Salmonella enterica, subspecies enterica, serotype Enteritidis (S. Enteritidis). A total number of 288 drug-free broiler chicks was divided into 6 groups (groups A, B
Revista Brasileira de Ciência Avícola. Publicado em: 2007-12
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23. Influence of sulfur amino acid levels in diets of broiler chickens submitted to immune stress
Several changes in amino acid levels occur during an infection. As a rule, glycine, taurine and serine levels diminish considerably, while cysteine levels increase. Such changes may be attributed to the intense consumption of sulfur amino acids (SAA- methionine+cysteine) during infectious challenge. Methionine plays an important role in humoral and cellular
Revista Brasileira de Ciência Avícola. Publicado em: 2007-03
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24. Cattle submited with vaccine stress with synthetic immunogenis challenged with Rhipicephalus (Boophilus) microplus and Babesia bovis: immunoistochemistry expression of heat shock proteins and blood biochemical / Bovinos submetidos a estresse vacinal com imunógenos sintéticos e desafiados com Rhipicephalus (Boophilus) microplus e Babesia bovis: expressão imunoistoquímica de proteínas de choque térmico (HSP70 e HSP90) e bioquímica sangüínea
The expression of HSP70 and HSP90 was evaluated through immunoistochemistry studies in bovine inoculated with synthetic peptides SBbo23290 and SBm7462 applied simultaneously, in association or in individual presentation. The animals received three applications with 30 days of interval among them and after challenged with the Babesia bovis strain UFV1 - 9th p
Publicado em: 2007