Macadamia Oil Supplementation Attenuates Inflammation and Adipocyte Hypertrophy in Obese Mice

Excess of saturated fatty acids in the diet has been associated with obesity, leading to systemic disruption of insulin signaling, glucose intolerance, and inflammation. Macadamia oil administration has been shown to improve lipid profile in humans. We evaluated the effect of macadamia oil supplemen...

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Detalhes bibliográficos
Autores: Lima, Edson A.; Silveira, Loreana S.; Masi, Laureane Nunes; Crisma, Amanda Rabello; Davanso, Mariana Rodrigues; Souza, Gabriel I. G.; Santamarina, Aline Boveto [UNIFESP]; Moreira, Renata Guimaraes; Martins, Amanda Roque; Sousa, Luis Gustavo O. de; Hirabara, Sandro Massao; Rosa Neto, José Cesar
Tipo de documento: Artigo
Estado:Published version
Data de publicação:2014
País:Brasil
Recursos:UNIFESP
Repositório:Repositório Institucional da UNIFESP
Idioma:Inglês
OAI Identifier:oai:repositorio.unifesp.br:11600/37158
Acesso em linha:https://dx.doi.org/10.1155/2014/870634
https://repositorio.unifesp.br/handle/11600/37158
Nível de acesso:Acesso aberto
Descrição
Resumo:Excess of saturated fatty acids in the diet has been associated with obesity, leading to systemic disruption of insulin signaling, glucose intolerance, and inflammation. Macadamia oil administration has been shown to improve lipid profile in humans. We evaluated the effect of macadamia oil supplementation on insulin sensitivity, inflammation, lipid profile, and adipocyte size in high-fat diet (HF) induced obesity in mice. C57BL/6 male mice (8 weeks) were divided into four groups: (a) control diet (CD), (b) HF, (c) CD supplemented with macadamia oil by gavage at 2g/Kg of body weight, three times per week, for 12 weeks (CD + MO), and (d) HF diet supplemented with macadamia oil (HF + MO). CD and HF mice were supplemented with water. HF mice showed hypercholesterolemia and decreased insulin sensitivity as also previously shown. HF induced inflammation in adipose tissue and peritoneal macrophages, as well as adipocyte hypertrophy. Macadamia oil supplementation attenuated hypertrophy of adipocytes and inflammation in the adipose tissue and macrophages.