Lipotoxicity: Effects of Dietary Saturated and Transfatty Acids
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2013-01-01
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Estadella, Debora 
Nascimento, Claudia Maria da Penha Oller do
Oyama, Lila Missae
Ribeiro, Eliane Beraldi
Dâmaso, Ana Raimunda
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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.
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Mediators of Inflammation. New York: Hindawi Publishing Corporation, 13 p., 2013.