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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.
11

Efeito do óleo de babaçu (Orbignya phalerata) na microcirculação: estudo experimental e avaliação clínica em famílias de quilombolas quebradeiras de coco / Effects of babassu nut oil (Orbignya phalerata) on ischemia/reperfusion-induced leukocyte adhesion and macromolecular leakage in the microcirculation: observation in the hamster cheek pouch

BARBOSA, Maria do Carmo Lacerda 22 December 2012 (has links)
Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-08-30T16:44:06Z No. of bitstreams: 1 Maria-do-CarmoLacerdaBarbosa.pdf: 2252312 bytes, checksum: 40f2c098ce26f0923b81dec898c29c38 (MD5) / Made available in DSpace on 2017-08-30T16:44:06Z (GMT). No. of bitstreams: 1 Maria-do-CarmoLacerdaBarbosa.pdf: 2252312 bytes, checksum: 40f2c098ce26f0923b81dec898c29c38 (MD5) Previous issue date: 2012-12-22 / Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão (FAPEMA) / Babassu is the popular name given to the oilseeds palms that belongs to the Arecaceae Family, Orbignya and Attalea gender. The Orbignya phalerata (O. phalerata) species, the genuine babassu, is densely distributed in the Amazon region and Atlantic Forest from Bahia State in Brazil. In Maranhão State, about 300 thousand coconut breakers survive through the agroextractivism of babassu and use their byproducts in their feeding. The kernls of babassu have hight lipid content and is considered as high potential for vegetable oil production. The unrefined oil has in its composition as well as triglycerides, the so called “minor components” which are phospholipids, pigments, sterols, tocopherols and trace of some substances and metals. In Brazil, little is known about the effects of babassu oil for human health and its effects on microcirculation.The chapter I had the objective to evaluate the effects of babassu oil on microvascular permeability and leukocyte-endothelial interactions induced by ischemia/reperfusion(I/R) using the hamster cheek pouch microcirculation as experimental model. The results showed that the mean value of I/R-induced microvascular leakage, determined during reperfusion, was significantly lower in the BO-6 and BO-18 groups than in the MO one (P< 0.001). In addition, histamine-induced increase of microvascular permeability was significantly less pronounced in BO groups compared to MO one. No significant differences among groups in terms of leukocyte adhesion, concentrations of tumor necrosis factor alpha, interleukin 1, and interleukin 6 were found. The experimental study showed that unrefined babassu oil reduced microvascular leakage and protected against histamineinduced effects in postcapillary venules and highlights that these oil might be secure sources of food energy.The Chapter II analysed the risk factors associated to dyslipidemia, metabolic syndrome (MS) and Framingham score in quilombolas coconut breaker’s families that belong to rural communities of Maranhão State. It is a crosssectional study conducted in Quilombolas communities of Codó-MA, Brazil. Cardiovascular risk factors associated to dyslipidemia, metabolic syndrome (MS) and Framingham score were analysed. Prevalence ratios and 95% confidence intervals were estimated using Poisson regression. The study showed hight prevalence of dyslipidemia (72.28%) and hypertension (43.07%). There was a predominance of isolated hypertriglyceridemia (38.61%) with normal levels of HDLc (high density Lipoprotein, cholesterol) LDLc (low density Lipoprotein, cholesterol) in most individuals. The prevalence of metabolic syndrome and risk of death from cardiovascular events according to the Framingham score was low in this population. There was no statistical significance between dyslipidemia and hypertension, smoking and education. The study of the population showed that although there was a high prevalence of isolated hypertriglyceridemia, the low frequency of other risk factors associated with dyslipidemia determined low frequency of MS and cardiovascular risk by Framingham score in Quilombolas communities of Codó-MA. / O babaçu é o nome genérico conferido às palmeiras oleaginosas da família Arecaceae, gênero Orbignya e Attalea. A espécie Orbignya phalerata (O. phalerata), o babaçu verdadeiro se encontra densamente distribuído na Amazônia e na Mata Atlântica do estado da Bahia. No Maranhão, cerca de 300 mil famílias de quebradeiras de coco sobrevivem do agroextrativismo do babaçu e utilizam os seus subprodutos na alimentação. As amêndoas do babaçu apresentam elevado teor de lipídios, sendo consideradas de alto potencial para produção de óleo vegetal. O óleo não refinado apresenta em sua composição além de triglicerídeos, os chamados “componentes menores” que são fosfolipídios, pigmentos, esteróis, tocoferóis, traços de algumas outras substâncias e metais. No Brasil, pouco se conhece sobre os efeitos do óleo de babaçu na saúde humana e seus efeitos na microcirculação. O capítulo I teve como objetivo avaliar os efeitos do óleo de babaçu sobre a permeabilidade microvascular e a interação leucócito-endotélio induzida pela isquemia-reperfusão (I/R), utilizando a bolsa da bochecha de hamster como modelo experimental. Os resultados mostraram que os valores do extravasamento de macromoléculas após lesão (I/R) foi significativamente menor nos animais tratados com óleo de babaçu não refinado nas doses de 0,6 ml (BO-6) e 0,18ml(BO-18) do que no controle tratado com óleo mineral (MO) (P<0.001). O aumento da permeabilidade induzida pela histamina foi significativamente menos pronunciado no grupo BO do que no MO. Não houve diferença estatisticamente significativa em relação à adesividade leucocitária, concentração de fator de necrose tumoral (TNF), interleucina (IL)1 e 6. O capítulo II avaliou os fatores de risco associados à ocorrência de dislipidemia em famílias de quilombolas quebradeiras de coco pertencentes a comunidades do município de Codó-Maranhão. Trata-se de um estudo transversal em que se analisaram os fatores de risco associados à dislipidemia, síndrome metabólica (SM) e o risco de morte por eventos cardiovasculares de acordo com o score de Framingham. Razões de prevalência e intervalos de confiança de 95% foram estimados pela regressão de Poisson. O estudo mostrou alta prevalência de dislipidemia (72,28%) e de hipertensão arterial sistêmica (43,07%). Houve predomínio de hipertrigliceridemia isolada (38,61%) com valores de HDLc (high density Lipoprotein, cholesterol) LDLc (low density Lipoprotein, cholesterol) normais na maioria dos indivíduos. A prevalência de SM e de risco de morte por eventos cardiovasculares de acordo com o score de Framingham foi baixa nesta população. Não houve significância estatística entre dislipidemia e hipertensão, tabagismo e escolaridade. Apesar da prevalência elevada de hipertrigliceridemia isolada, a baixa frequência de outros fatores de risco associados à dislipidemia determinou baixa prevalência de SM e de risco cardiovascular pelo score de Framingham nas comunidades quilombolas de Codó- MA.
12

Intestinal peptides and ethnic differences in insulin secretion

Higgins, Paul B. January 2006 (has links) (PDF)
Thesis (Ph. D.)--University of Alabama at Birmingham, 2006. / Title from first page of PDF file (viewed Feb. 22, 2007). Includes bibliographical references (p. 92-107).
13

Comorbidity and body mass index (BMI) as predictors of survival for African Americans and Caucasians following surgery for adenocarcinoma of the colon

Hines, Robert B. January 2009 (has links) (PDF)
Thesis (Ph.D.)--University of Alabama at Birmingham, 2009. / Title from first page of PDF file (viewed on June 9, 2009). Includes bibliographical references.
14

The physical anthropology of the Bushmen bibliography, 1930-1962 /

Malan, Jocelyn E. January 1962 (has links)
Thesis (Higher Certificate in Librarianship)--University of Cape Town, 1962. / Includes index.
15

The skull of the South African Negro a biometrical and morphological study.

De Villiers, Hertha. January 1968 (has links)
Thesis--Witwatersrand, 1963. / Bibliography: p. 329-338.
16

The physical anthropology of the Bushmen bibliography, 1930-1962 /

Malan, Jocelyn E. January 1962 (has links)
Thesis (Higher Certificate in Librarianship)--University of Cape Town, 1962. / Includes index.
17

The skull of the South African Negro a biometrical and morphological study.

De Villiers, Hertha. January 1968 (has links)
Thesis--Witwatersrand, 1963. / Bibliography: p. 329-338.
18

Worry, stress, and family : critical signifiers of high blood pressure by rural dwelling African Americans /

Boutain, Doris M. January 2000 (has links)
Thesis (Ph. D.)--University of Washington, 2000. / Vita. Includes bibliographical references (leaves 131-159).
19

The potential impact of the African Continental Free Trade Area agreement on a regional service provider

Dipholo, Thabo January 2019 (has links)
The advent of trade in services theory has been a developing research topic since 1980, where various factors are in place to determine trade flows and the impact of regulatory frameworks and policies. Services trade is an important contributing factor towards economic objectives and continues to drive development. With growth in services trade across the globe there is increased value in understanding the impact of the services sector on the African continent. The evolving reliance on services towards globalisation in low-income economies is proven to contribute significantly to gross domestic product. The African Continental Free Trade Area (AfCFTA) agreement was instituted to integrate economies by creating ease of access for the intra-trade of goods and services across the continent. This study aimed to explore the impact of the AfCFTA agreement on a regional financial services provider. The research followed a semi-structured interview methodology, which measured and tested the impact of the agreement on trade in services for this qualitative study. The results indicated that the service provider would adopt the AfCFTA agreement’s requirements in the expansion of its operations, to establish services across the continent. Although the minimum number of countries required supported the ratification process, a lot of work is needed to develop and understand the effect of international trade, on the back of reformative policy changes such as the AfCFTA agreement. / Mini Dissertation (MPhil)--University of Pretoria, 2019. / Gordon Institute of Business Science (GIBS) / MPhil / Unrestricted
20

Human leukocyte antigen supertypes in relation to human imunodeficiency virus infection among populations of African ancestry

Lazaryan, Aleksandr. January 2008 (has links) (PDF)
Thesis (Ph.D.)--University of Alabama at Birmingham, 2008. / Title from PDF title page (viewed on Sept. 17, 2009). Includes bibliographical references.

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