RT Journal Article T1 Influence of a fat overload on lipogenic regulators in metabolic syndrome patients A1 Mayas Torres, María Dolores A1 Queipo-Ortuño, María Isabel A1 Clemente-Postigo, Mercedes A1 Macías González, Manuel A1 El Bekay, Rajaa A1 Tinahones, Francisco J A1 Cardona Díaz, Fernando K1 Complejo Ácido Graso Sintetasa K1 Femenino K1 Humanos K1 Leucocitos Mononucleares K1 Peróxidos Lipídicos K1 Lipogénesis K1 Masculino K1 Síndrome X Metabólico K1 Receptores Nucleares Huérfanos K1 ARN Mensajero K1 Receptores X Retinoide K1 Proteínas de Unión a los Elementos Reguladores de Esteroles K1 Triglicéridos K1 Grasas en la Dieta K1 Genetic expression K1 Postprandial hypertriacylglycerolaemia K1 Lipogenic genes AB Several epidemiological studies have related an increase of lipids in the postprandial state to an individual risk for the development of CVD, possibly due to the increased plasma levels of TAG and fatty acids (FA) through enzymes of FA metabolism. The interaction between nutrition and the human genome determines gene expression and metabolic response. The aim of the present study was to evaluate the influence of a fat overload on the gene mRNA levels of lipogenic regulators in peripheral blood mononuclear cells (PBMC) from patients with the metabolic syndrome. The study included twenty-one patients with criteria for the metabolic syndrome who underwent a fat overload. Measurements were made before and after the fat overload of anthropometric and biochemical variables and also the gene mRNA levels of lipogenic factors. The main results were that the fat overload led to an increased mRNA levels of sterol regulatory element binding protein-1 (SREBP1), retinoid X receptor α (RXRα) and liver X receptor α (LXRα) in PBMC, and this increase was associated with the FA synthase (FASN) mRNA levels. We also found that TAG levels correlated with FASN mRNA levels. In addition, there was a positive correlation of SREBP1 with RXRα and of LXRα with the plasma lipoperoxide concentration. The fat overload led to an increase in regulators of lipogenesis in PBMC from patients with the metabolic syndrome. PB Cambridge University Press SN 0007-1145 YR 2011 FD 2011-03 LK http://hdl.handle.net/10668/846 UL http://hdl.handle.net/10668/846 LA en NO Mayas MD, Queipo-Ortuño MI, Clemente-Postigo M, Macias M, El Bekay R, Tinahones FJ, Cardona F. Influence of a fat overload on lipogenic regulators in metabolic syndrome patients. Br. J. Nutr.. 2011; 105(6):895-901 NO Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; DS RISalud RD Apr 7, 2025