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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Estudo do perfil salivar proteico de crianças obesas pré-púberes com foco nas alterações de mediadores da metainflamação / Salivary protein profile study of obese prepuberal children with a focus on metainflammation mediators changes

Fernanda Barja Fidalgo Silva de Andrade 19 April 2013 (has links)
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro / O objetivo deste estudo foi investigar na saliva de crianças pré-púberes obesas, em comparação com crianças eutróficas, a presença de possíveis diferenças na expressão de mediadores proteicos relacionados à metainflamação através de um estudo observacional transversal. Foram selecionadas 105 crianças pré-púberes com idade entre 5 e 9 anos, sem quaisquer outros comprometimentos sistêmicos ou bucais sendo realizada a mensuração do comprimento da circunferência da cintura (CC), além do peso e estatura para cálculo do IMC e seu escore Z (zscore IMC), de forma a compor 3 grupos: EU - eutrofia (-2SD&#8804; zscore IMC&#8804;1SD), SP - sobrepeso (1SD < zscore IMC < 2SD) e OB obesidade (zscore IMC &#8805; 2SD). Após o exame médico e odontológico foi feita a coleta de sangue e de saliva total não estimulada, de forma protocolada. Amostras séricas e salivares foram analisadas, individualmente, para a dosagem de IL1&#946;, IL6, IL8. IL10, IL12p70, TNF&#945;, MCP1, leptina, grelina e insulina, por Multiplex e adiponectina total e de alto peso molecular (adipoHMW), por ELISA. Além disso, as amostras séricas foram utilizadas para o delineamento hemodinâmico dos pacientes. As amostras salivares de EU e OB foram também analisadas em pools por espectrometria de massa (MS) e a presença de algumas proteínas foi validada por imunoblotting, para a comparação do perfil salivar proteico. As concentrações dos analitos foram comparadas tanto entre os grupos (teste de Kruswall-Wallis), como em relação ao zscore IMC e ao CC (Correlação de Spearman ou Pearson). Dos 12 analitos, somente a adipoHMW não foi detectada em nenhuma das amostras salivares. Na comparação OBxEU houve aumento na concentração total de proteínas salivares, da insulina e leptina sérica e salivar e do MCP1, além de diminuição da adiponectina sérica total e de adipoHMW e uma menor relação adiponectina/leptina (A/L) no grupo OB. As principais correlações obtidas com o zscore IMC foram com as concentrações séricas e salivares de insulina e leptina (positivas) e com a relação A/L (negativa), observando-se também a correlação negativa com a adiponectina total e adipoHMW séricas. Na comparação entre as concentrações séricas e salivares, foi possível detectar correlação positiva entre as dosagens de insulina e leptina, assim como com os valores da relação A/L. Na análise proteômica por MS foram identificadas 670 proteínas, sendo 163 delas com expressão diferenciada na saliva de OB em relação a EU. Dentre estas, encontram-se alteradas proteínas relacionadas à resposta inflamatória humoral, em especial com a via alternativa do sistema complemento e do metabolismo redox. Foram selecionadas três destas proteínas para validação por imunoblotting, que confirmou o aumento do Fator H e a diminuição do Fator B e da tioredoxina na saliva de OB em relação a EU. Considerando os resultados, podemos verificar que embora com menores concentrações absolutas dos mediadores, a saliva mostrou praticamente as mesmas associações observadas no sangue, em especial para a insulina, leptina e relação A/L, sendo possível admitir que a análise salivar venha a ser um bom método diagnóstico não invasivo para a obesidade infantil. / The aim of this study was to investigate possible different expressions of protein mediators related to metaflammation, in normal and obese prepubertal children`s saliva. For this cross-sectional observational study, 105 prepubertal children, between 5 and 9 years old, without oral or systemic disorders were selected. Weight, height and waist circumference (CC) were measured and body mass index (BMI) and BMI zscore were calculated in order to classify the children into the following groups: EU - lean (-2SD &#8804; BMI zscore &#8804; 1SD), SP - overweight (1SD < BMI zscore <2SD) and OB - obese (BMI zscore &#8805; 2SD). Following medical and dental examination, blood and unstimulated whole saliva were sampled. The samples were individually analyzed by immunoassay for IL1&#946;, IL6, IL8, IL10, IL12p70, TNF, MCP1, leptin, insulin and ghrelin, using Multiplex. Total and high molecular weight (adipoHMW) adiponectin were analyzed using ELISA. Additionally, serum samples were used to assess the patients lipid profile. Pools of EU and OB saliva samples were also analyzed by mass spectrometry (MS). The presence of some proteins was validated for by immunoblotting. The concentrations of analytes were compared between the groups EU, SP and OB (Kruswall-Wallis test), and in relation to BMI zscore and CC (Pearson or Spearman correlation). Only adipoHMW was not detected in any saliva sample. In comparison with EU, OB showed an increase in total concentration of salivary proteins, salivary and serum insulin, serum and salivary leptin and serum MCP1. Also, a decreased serum total adiponectin and adipoHMW and a lower A/L ratio were observed in the OB group. BMI zscore was positively correlated with insulin and leptin salivary and serum concentrations. A negative correlation with A/L ratio, serum total adiponectin and adipoHMW was also observed. These correlations were also found with CC. Comparing blood and saliva concentrations, significant associations between the dosages of insulin and leptin, as well as the values of A/L ratio were found. In proteomic analysis, by MS, 670 proteins were identified, and 163 of them with differential expression in saliva of OB in comparison to EU. Proteins related to the inflammatory response, in particular with the alternative pathway of the complement system and of redox metabolism were differently expressed between EU and OB. Three of these proteins were selected for validation by immunoblotting, which confirmed the increase of complement H Factor and reduced thioredoxin and complement B Factor expression in the saliva of OB compared to EU. Considering the results, it can be concluded that, although at lower absolute concentrations, the inflammatory mediators in saliva showed the same associations observed in blood, especially insulin, leptin, and A/L ratio. It is possible to assume that salivary analysis may become a useful noninvasive diagnosis method for childhood obesity.
52

Análise do efeito de tratamentos periodontais na evolução da periodontite em crianças portadoras de cardiopatia congênita e crianças com coração estruturalmente normal

Bresolin, Adriana Chassot 01 July 2013 (has links)
Made available in DSpace on 2017-07-10T14:17:02Z (GMT). No. of bitstreams: 1 adriana.pdf: 2337170 bytes, checksum: e5390349b6b7e1277dc2720b1b76d735 (MD5) Previous issue date: 2013-07-01 / The effects of periodontal disease in the oral cavity are well known, however, they can also produce systemic side effects, including the association with the acquired cardiovascular disease. It may be possible to accept as mechanisms of this interrelation, the changes in the lipid metabolism, the inflammatory markers action, which are common to both diseases, and also the direct action of oral bacteria in the atherosclerosis process. Thus, due to the biological associations between diseases and the fact of the atherosclerosis to begin in the childhood period, a behavior based on oral health care and metabolic control, from an early age, is essential for patients with cardiovascular disease. The aim of this research was to evaluate the effectiveness of two periodontal treatment methods, such as the conventional scaling and root planing (SRP) and the full-mouth scaling and root planing (FMSRP), applied to children suffering from periodontal disease with congenital heart disease and structurally normal heart. In this study, the treatments were related to the clinical periodontal parameters [plaque index (PI), gingival index (GI), probing depth (PD), clinical attachment level (CAL) and bleeding on probing (BOP)] as well as the blood parameters, such as lipid profile [total cholesterol (TC) and fractions, triglycerides (TRG)] and inflammatory markers [fibrinogen (FGN), C-reactive protein (CRP ULTRA), interleukin 6 (IL6), and tumor necrosis factor alpha (TNF&#61537;)]. The patients were divided into 4 groups: group 1 (17) - Congenital Heart Disease and SRP, group 2 (14) - Normal Heart and SRP, group 3 (16) Congenital Heart Disease and FMSRP and group 4 (15) - Normal Heart and FMSRP. The results showed a significant improvement in clinical periodontal parameters (p <0.05) in the studied groups. Considering the lipid parameters, there was a greater evidence in the TC, TRG and VLDL parameters results, with a significant improvement (p <0.05). There was also an improvement in PCR ULTRA with the congenital heart disease and also normal children treated with SRP (p <0,05). The FGN and IL6 parameters (p <0.05) were really improved in all groups. Thus, within these results, we conclude that both periodontal treatments were effective in these children groups / Os efeitos da doença periodontal sobre a cavidade oral são bem conhecidos, contudo, os mesmos também podem produzir efeitos sistêmicos, incluindo a associação com a doença cardiovascular adquirida. Aceitam-se como possíveis mecanismos desta inter-relação as alterações do metabolismo lipídico, a ação de marcadores inflamatórios, que são comuns a ambas as doenças, e até mesmo a ação direta de bactérias orais no processo da aterosclerose. Sendo assim, devido às associações biológicas entre as doenças e o fato da doença aterosclerótica iniciar-se na infância, um comportamento voltado aos cuidados com a saúde oral e controle metabólico, desde a mais tenra idade, é essencial para pacientes portadores de doenças cardiovasculares. O objetivo desta pesquisa foi avaliar a efetividade de duas modalidades de tratamento, a saber, a Raspagem e Alisamento Radicular Convencional (RAR) e a Desinfecção Total de Boca em Estágio Único (DBEU), aplicados a crianças portadoras de doença periodontal com cardiopatia congênita e com coração estruturalmente normal. Neste estudo relacionou-se os tratamentos tanto com parâmetros clínicos periodontais [índice de placa (IP), índice gengival (IG), profundidade de sondagem (PS), nível de inserção clínica (NI) e sangramento à sondagem (SS)], quanto com parâmetros sanguíneos de perfil lipídico [colesterol total (CT) e frações, triglicerídeos (TRG)] e marcadores inflamatórios [fibrinogênio (FGN), proteína C reativa ultrassensível (PCR ULTRA), interleucina 6 (IL6), fator de necrose tumoral alfa (TNF&#61537;)]. Os pacientes foram distribuídos em 4 grupos, grupo 1 (17) Cardiopatia Congênita e RAR, grupo 2 (14) Coração Normal e RAR, grupo 3 (16) Cardiopatia Congênita e DBEU e grupo 4 (15) Coração Normal e DBEU. Os resultados demonstraram uma significante melhora nos parâmetros clínicos periodontais (p<0.05) nos grupos estudados. Quanto aos parâmetros lipídicos, houve destaque maior, com melhora significativa (p<0.05) nos parâmetros de CT, TRG e VLDL. Houve também melhora do PCR ULTRA nos grupos de pacientes com cardiopatia congênita e crianças normais tratados com RAR (p<0.05). Destaques ocorreram nos parâmetros de FGN e IL6 (p<0.05) com a melhora em todos os grupos. Assim, dentro desses resultados, podemos concluir que ambos os tratamentos periodontais foram efetivos nesses grupos de crianças
53

N-3 fatty acids, eicosanoids and control of inflammation / by Joanna Susan Hawkes

Hawkes, Joanna Susan January 1993 (has links)
Errata slip inserted / Bibliography: leaves 178-199 / xxi, 199, [55] leaves, [3] leaves of plates : ill ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Clinical and Experimental Pharmacology, and Rheumatology Unit, Royal Adelaide Hospital, 1994
54

Chlamydia pneumoniae and airways inflammation : an investigation of the host cell-pathogen relationship / Tracy Renee McNamara.

McNamara, Tracy Renee January 2004 (has links)
"December 2004" / Includes bibliographical references (leaves 342-379) / xiii, 379 leaves : ill. (col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Medicine, 2005
55

Particle-induced pulmonary inflammation and fibrosis role of inflammatory mediators in the initiation and progression of occupational lung disease /

Zeidler, Patti C. January 2003 (has links)
Thesis (Ph. D.)--West Virginia University, 2003. / Title from document title page. Document formatted into pages; contains xv, 190 p. : ill. (some col.). Includes abstract. Includes bibliographical references.
56

Regulation of interleukin-1[Beta] and tumor necrosis factor[alpha] synthesis by fatty acids and eicosanoids / by Gillian Elizabeth Caughey.

Caughey, Gillian Elizabeth January 1998 (has links)
Bibliography: leaves 267-345. / xi, 345, [61] leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Examines the regulation of interleukin-1[Beta] and tumor necrosis factor[alpha] synthesis by fatty acids and eicosanoids by examining the mediator synthesis following dietary fatty acid manipulation / Thesis (Ph.D.)--University of Adelaide, Dept. of Medicine, 1998?
57

Role of inflammatory and mitochondria genes in adipose tissue and obesity /

Kaaman, Maria, January 2007 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 4 uppsatser.
58

Immunohistological studies on muscle biopsies : clinical and pathogenetic aspects on inflammatory myopathies /

Lindvall, Björn January 2002 (has links) (PDF)
Diss. (sammanfattning) Linköping : Univ., 2002. / Härtill 4 uppsatser.
59

Neurotrophic and immune regulatory factors in neuroinflammation /

Gielen, Alexander W., January 2004 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2004. / Härtill 5 uppsatser.
60

Pollinosis in children with special reference to the development of asthma /

Ferdousi, Hosne Ara, January 2004 (has links) (PDF)
Diss. Linköping : Linköpings universitet, 2004. / Härtill 7 uppsatser.

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