RT Journal Article T1 Molecular effect of fenofibrate on PBMC gene transcription related to lipid metabolism in patients with metabolic syndrome A1 Moreno-Indias, Isabel A1 Tinahones-Madueño, Francisco José A1 Clemente-Postigo, María Mercedes A1 Castellano-Castillo, Daniel A1 Fernández-García, José Carlos A1 Macías-González, Manuel A1 Queipo-Ortuño, María Isabel A1 Cardona-Díaz, Fernando K1 Síndrome metabólico K1 Lípidos - Metabolismo AB Background: Both fasting and postprandial hypertriglyceridaemia are considered independent risk factors for atherosclerosis. Treatment of hypertriglyceridaemia is based on fibrates, which activate the peroxisome proliferator-activated receptor alpha (PPARα). However, the metabolic pathways that activate or inhibit fibrates, and how the postprandial triglyceride levels are modified, have not yet been fully described. Accordingly, the aim of this study was to determine the feasibility of peripheral blood mononuclear cells (PBMC) to study the effects of fenofibrate in patients with the metabolic syndrome.Materials and methods: A fat overload was given to 50 patients before and after treatment with fenofibrate for 3 months. Anthropometric and biochemical variables as well as gene expression in PBMC were analysed.Results: After treatment with fenofibrate, we observed a decrease in both baseline and postprandial (3 h after the fat overload) levels of serum triglycerides, cholesterol and uric acid and an increase in HDL cholesterol and apolipoprotein AI levels. After treatment, there was also a rise in PPARα and RXRα expression and changes in genes regulated by PPARα, both baseline and postprandial. Furthermore, in vitro experiments showed that a PPARα agonist changed the expression of genes related with lipid metabolism.Conclusion: Treatment with fenofibrate reduced fasting and postprandial serum triglyceride levels, possibly through a mechanism related with an increase in the expression of RXRα and PPARα, by activating the pathways involved in the uptake and degradation of triglycerides and increasing the synthesis of apolipoprotein. These results suggest that PBMC may be useful for the easy study of fenofibrate actions. PB Wiley YR 2017 FD 2017-06 LK https://hdl.handle.net/10630/45645 UL https://hdl.handle.net/10630/45645 LA eng NO Moreno-Indias I, Tinahones FJ, Clemente-Postigo M, Castellano-Castillo D, Fernández-García JC, Macias-Gonzalez M, Queipo-Ortuño MI, Cardona F. Molecular effect of fenofibrate on PBMC gene transcription related to lipid metabolism in patients with metabolic syndrome. Clin Endocrinol (Oxf). 2017 Jun;86(6):784-790. doi: 10.1111/cen.13320. Epub 2017 Mar 27. PMID: 28251701. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 3 mar 2026