RT Journal Article T1 Evaluation of the Predictive Ability, Environmental Regulation and Pharmacogenetics Utility of a BMI-Predisposing Genetic Risk Score during Childhood and Puberty. A1 Anguita-Ruiz, Augusto A1 González-Gil, Esther M A1 Rupérez, Azahara I A1 Llorente-Cantarero, Francisco Jesús A1 Pastor-Villaescusa, Belén A1 Alcalá-Fdez, Jesús A1 Moreno, Luis A A1 Gil, Ángel A1 Gil-Campos, Mercedes A1 Bueno, Gloria A1 Leis, Rosaura A1 Aguilera, Concepción M K1 Spanish children K1 childhood K1 childhood obesity K1 gene-environment interactions K1 genetic risk score K1 genetics K1 metabolic syndrome K1 obesity K1 pharmacogenetics K1 predictive ability K1 puberty AB Polygenetic risk scores (pGRSs) consisting of adult body mass index (BMI) genetic variants have been widely associated with obesity in children populations. The implication of such obesity pGRSs in the development of cardio-metabolic alterations during childhood as well as their utility for the clinical prediction of pubertal obesity outcomes has been barely investigated otherwise. In the present study, we evaluated the utility of an adult BMI predisposing pGRS for the prediction and pharmacological management of obesity in Spanish children, further investigating its implication in the appearance of cardio-metabolic alterations. For that purpose, we counted on genetics data from three well-characterized children populations (composed of 574, 96 and 124 individuals), following both cross-sectional and longitudinal designs, expanding childhood and puberty. As a result, we demonstrated that the pGRS is strongly associated with childhood BMI Z-Score (B = 1.56, SE = 0.27 and p-value = 1.90 × 10-8), and that could be used as a good predictor of obesity longitudinal trajectories during puberty. On the other hand, we showed that the pGRS is not associated with cardio-metabolic comorbidities in children and that certain environmental factors interact with the genetic predisposition to the disease. Finally, according to the results derived from a weight-reduction metformin intervention in children with obesity, we discarded the utility of the pGRS as a pharmacogenetics marker of metformin response. SN 2077-0383 YR 2020 FD 2020-06-02 LK https://hdl.handle.net/10668/28150 UL https://hdl.handle.net/10668/28150 LA en DS RISalud RD Apr 6, 2025