RT Journal Article T1 Epigenetic approach in obesity: DNA methylation in a prepubertal population which underwent a lifestyle modification A1 Gallardo-Escribano, Cristina A1 Buonaiuto, Verónica A1 Ruiz-Moreno, M. Isabel A1 Vargas-Candela, Antonio A1 Vilches-Perez, Alberto A1 Benitez-Porres, Javier A1 Romance-Garcia, Angel Ramon A1 Ruiz-Moreno, Alejandro A1 Gómez-Huelgas, Ricardo A1 Bernal-Lopez, M. Rosa K1 Prepubertal population K1 Metabolically healthy obesity K1 Methylation K1 Lipid profile K1 Inflammatory profile K1 Lifestyle modification K1 Obesity K1 Obesidad metabólica benigna K1 Metilación K1 Obesidad K1 Niño K1 Niño preescolar K1 Inflamación K1 Lípidos K1 Estilo de vida saludable AB Background: Metabolically healthy obesity (MHO) is a considerably controversial concept as it is considered a transitory condition towards the development of different pathologies (type 2 diabetes, insulin resistance, or cardiovascular disease). MHO is closely related to lifestyle and environmental factors. Epigenetics has become an essential biological tool to analyze the link between obesity and metabolic status. The aim of this study was to determine whether MHO status is conditioned by the DNA methylation (DNAm) of several genes related to lipid metabolism (lipoprotein lipase, retinoid X receptor alpha, liver X receptor, stearoyl-CoA desaturase, sterol regulatory element binding factor 1), and inflammation (LEP) in peripheral blood mononuclear cells (PBMCs) from 131 prepubertal subjects with MHO phenotype after lifestyle modifications with personalized Mediterranean diet (MedDiet) combined with a physical activity (PA) program. Results: The DNAm of all studied genes were significantly modified in the population after 12 months of lifestyle modifications (MedDiet and PA). In addition, associations were found between the DNAm studies and BMI, homeostatic model assessment of insulin resistance, monounsaturated fatty acid and polyunsaturated fatty acid, moderate-vigorous PA, fat mass, and adherence to MedDiet. Conclusions: It was found that DNAm of genes related to lipid metabolism and inflammation are also present in childhood and that this methylation profile can be modified by interventions based on MedDiet and PA. PB BioMed Central, Springer Nature YR 2020 FD 2020-09-23 LK http://hdl.handle.net/10668/4397 UL http://hdl.handle.net/10668/4397 LA en NO Gallardo-Escribano C, Buonaiuto V, Ruiz-Moreno MI, Vargas-Candela A, Vilches-Perez A, Benitez-Porres J, et al. Epigenetic approach in obesity: DNA methylation in a prepubertal population which underwent a lifestyle modification. Clin Epigenetics. 2020 Sep 23;12(1):144 DS RISalud RD Apr 11, 2025