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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.
1

Avaliação da trigonelina e curcumina, isoladas ou co-administradas em iogurte, em modelo experimental de obesidade e resistência à insulina /

Costa, Mariana de Campos da. January 2019 (has links)
Orientador: Amanda Martins Baviera / Resumo: Introdução: Ativos naturais têm sido estudados por suas ações antioxidantes, anti-inflamamatórias e antiglicação, que podem ser interessantes para prevenir/atenuar as complicações da obesidade e do diabetes mellitus (DM). A curcumina (polifenol isolado de Curcuma longa L.) e a trigonelina (alcaloide isolado de Trigonella foenum-graecum L.) apresentam ações benéficas contra os sintomas e desordens da obesidade e do DM, e combatem as consequências deletérias relacionadas ao estresse glicoxidativo. Objetivo: Investigar, em camundongos submetidos ao modelo experimental de obesidade/resistência à insulina, os efeitos dos tratamentos com trigonelina e/ou curcumina em iogurte, avaliando alterações em parâmetros fisiológicos e bioquímicos, sinalização insulínica (AKT), programa termogênico e status energético [sirtuína 1 (SIRT 1), proteína quinase ativada por adenosina monofosfato (AMPK), peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), proteína desacopladora mitocondrial 1(UCP 1)], níveis de marcadores de estresse glicoxidativo [substâncias reativas ao ácido tiobarbitúrico (TBARS), produtos finais de glicação avançada (AGEs), receptor de AGEs (RAGE)], marcadores da inflamação [fator nuclear kappa B (NF-кB), interleucinas (IL)-6 (IL-6) e 10 (IL-10), fator de necrose tumoral (TNF-α)], potencial antioxidante [atividades de superóxido dismutase (SOD), catalase (CAT), glutationa peroxidase (GSH-Px), nuclear factor (erythroid-derived 2)-like-2 factor (NRF 2)]... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Introduction: Natural actives have been studied for their antioxidant, anti-inflammatory, and antiglycation potentials, which may be interesting to prevent/attenuate the complications of obesity and diabetes mellitus (DM). Curcumin (polyphenol isolated from Curcuma longa L.) and trigonelline (alkaloid isolated from Trigonella foenum-graecum L.) have beneficial actions against the symptoms and disorders of obesity and DM, and act against the deleterious consequences related to glycoxidative stress. Objectives: To investigate the effects of treatments of mice submitted to the experimental model of obesity/insulin resistance with trigonelin and/or curcumin in yoghurt, evaluating the changes in physiological and biochemical parameters, insulin signaling (AKT), thermogenic program and energetic status [sirtuin 1 (SIRT 1), adenosine monophosphate-activated protein kinase (AMPK), peroxisome proliferator-activated gamma coactivator 1-alpha receptor (PGC-1α), mitochondrial uncoupling protein 1 (UCP 1), advanced glycation end products (AGEs), receptor for AGEs (RAGE)], markers of inflammation [nuclear factor kappa B (NF-кB), interleukins (IL) IL-6 and IL-10, tumor necrosis factor (TNF-α)], antioxidant defenses [superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), nuclear factor (erythroid-derived 2)-like-2 factor (NRF2)], AGEs detoxification machinery [glyoxalase 1 (GLO 1), AGE receptor 1 (AGE-R1)]. Methods: Male C57BL/6 mice were fed a standard diet (P, 3.85 kc... (Complete abstract click electronic access below) / Doutor

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