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000814002.pdf: 1173956 bytes, checksum: f0571023b266097e79a4f39e523f7c80 (MD5) / Acredita-se que as frações ativas de mananoproteinas (FAM), obtidas a partir da extração e fracionamento da parede celular de leveduras (Saccharomyces cerevisiae) possam modular de forma benéfica o sistema imune. Este estudo avaliou os efeitos imunológicos das FAM em cães adultos e idosos. Foram empregadas três dietas extrusadas, isonutritivas com inclusão de 0% (T0); 0,04% (T400) e 0,08% de FAM (T800). No total, foram utilizados 36 cães da raça beagle. Os tratamentos resultaram da combinação de idade (adultos e idosos) e dieta (T0, T400 e T800), gerando seis tratamentos experimentais. Para cada dieta foram utilizados seis cães adultos (4,0±2,0 anos) e seis cães idosos (11,0±1,0 anos). O experimento seguiu delineamento em blocos, com três blocos de 12 cães (seis adultos e seis idosos, dois cães por idade e dieta). Nos dias zero, 14 e 28, amostras de sangue foram coletadas para fenotipagem dos leucócitos sanguíneos e ensaio de fagocitose. Nos dias zero e 28 foram realizados: hemogramas, análises bioquímicas, teste de linfoproliferação, produção de intermediários reativos do oxigênio (H2O2) e nitrogênio (NO), avaliação da concentração de imunoglobulina A fecal e teste de hipersensibilidade cutânea tardia (DTH). Os dados foram submetidos à análise de variância com medidas repetidas no tempo, exceto o DTH, no qual se analisou separadamente cada tempo do período experimental. As médias foram comparadas pelo teste de Tukey (p≤0,05). A FAM mostrou-se segura nos teores e períodos estudados. Aos 28 dias, cães adultos alimentados com a dieta T400 em relação à T0 apresentaram contagens mais elevadas de linfócitos totais (p<0,05). Ao analisar a fenotipagem dos leucócitos sanguíneos demonstrou-se que, mais especificamente, o consumo de 0,04% de FAM pelos cães adultos elevou a contagem de linfócitos T totais (p=0,05). Independente da idade, neutrófilos de cães alimentados com T400, em relação à dieta ... / It is believed that the active fractions mananoproteínas (AFM), obtained from the extraction and fractionation of cell wall of yeast (Saccharomyces cerevisiae), may beneficially modulate the immune system. This study evaluated the immunological effects of FAM in adults or elderly dogs. Three extruded diets with isonutritives including 0% (T0); 0.04% (T400) and 0.08% of AFM (T800) were used. In total, 36 beagle dogs were used. The treatments resulted from the combination of age (adults and elderly) and diet (T0, T400 and T800), generating six experimental treatments. For each diet six adult dogs (4.0 ± 2.0 years) and six elderly dogs (11.0 ± 1.0 years) were used. The experiment was randomized complete block design with three blocks of 12 dogs (six older and six adults, two dogs by age and diet). At zero, 14 and 28 days, blood samples were collected for phenotyping of blood leukocytes and evaluation of phagocytic activity. In zero and 28 days, hemogram, biochemical analysis, lymphocyte proliferation, production of hydrogen peroxide (H2O2), nitric oxide (NO), evaluation of the concentration of fecal immunoglobulin A and delayed test hypersensitivity (DTH) were performed. Data were subjected to analysis of variance with repeated measures, except DTH, in which we analyzed separately each time the trial period. Means were compared by Tukey test (p≤0.05). The AFM was safe in the levels and periods. At 28 days, adult dogs fed the diet T400 relative to T0 had higher counts of total lymphocytes (p<0.05). By analyzing the phenotype of the blood leucocytes was shown that, more specifically, adult dogs consuming 0.04% of the AFM increased the amount of total T-lymphocytes (p=0.05). Regardless of age, neutrophils from dogs fed T400, relative to T0 diet, tended to produce more H2O2 (p=0.09). Higher percentage of phagocytic activity of neutrophils were observed in adult dogs fed on T400 compared to the T800 diet (p<0.05). The skin response ...
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.unesp.br:11449/122037 |
| Date | 24 April 2014 |
| Creators | Kroll, Fernanda Sant Anna [UNESP] |
| Contributors | Universidade Estadual Paulista (UNESP), Brunetto, Marcio Antonio [UNESP], Carciofi, Aulus Cavalieri [UNESP] |
| Publisher | Universidade Estadual Paulista (UNESP) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | xii, 93 p. : il. |
| Source | Aleph, reponame:Repositório Institucional da UNESP, instname:Universidade Estadual Paulista, instacron:UNESP |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | -1, -1, -1 |
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