Lipotoxicity: Effects of Dietary Saturated and Transfatty Acids

Autor(es)

Estadella, Debora ; da Penha Oller do Nascimento, Claudia M. ; Oyama, Lila M. ; Ribeiro, Eliane B. ; Damaso, Ana R. ; de Piano, Aline

• Tipo de documento: Artigo Científico
• Fonte: Mediators of Inflammation; v. 2013, p. 13-pg., 2013-01-01.

Resumo

The ingestion of excessive amounts of saturated fatty acids (SFAs) and transfatty acids (TFAs) is considered to be a risk factor for cardiovascular diseases, insulin resistance, dyslipidemia, and obesity. The focus of this paper was to elucidate the influence of dietary SFA and TFA intake on the promotion of lipotoxicity to the liver and cardiovascular, endothelial, and gut microbiota systems, as well as on insulin resistance and endoplasmic reticulum stress. The saturated and transfatty acids favor a proinflammatory state leading to insulin resistance. These fatty acids can be involved in several inflammatory pathways, contributing to disease progression in chronic inflammation, autoimmunity, allergy, cancer, atherosclerosis, hypertension, and heart hypertrophy as well as other metabolic and degenerative diseases. As a consequence, lipotoxicity may occur in several target organs by direct effects, represented by inflammation pathways, and through indirect effects, including an important alteration in the gut microbiota associated with endotoxemia. Interactions between these pathways may perpetuate a feedback process that exacerbates an inflammatory state. The importance of lifestyle modification, including an improved diet, is recommended as a strategy for treatment of these diseases. (AU)

• Processo FAPESP: 10/20079-2 - Dietas ricas em ácidos graxos saturados, trans e poliinsaturados na função secretora do tecido adiposo e na ativação da via de TLR4 e NF-kB: estudo in vivo e in vitro em adipócitos 3T3-L1 e miócitos C2C12
• Beneficiário: Claudia Maria da Penha Oller do Nascimento
• Modalidade de apoio: Auxílio à Pesquisa - Regular