Resumen: Angiopoietin-like protein 4 (ANGPTL-4) regulates lipidic metabolism and a_ects energy homeostasis. However, its function in children with obesity remains unknown. We investigated plasma ANGPTL-4 levels in children and its relationship with body mass index (BMI) and di_erent lipidic parameters such as free fatty acids (FFA). Plasma ANGPTL-4 levels were analyzed in two di_erent cohorts. In the first cohort (n = 150, age 3-17 years), which included children with normal weight or obesity, we performed a cross-sectional study. In the second cohort, which included only children with obesity (n = 20, age 5-18 years) followed up for two years after an intervention for weight loss, in which we performed a longitudinal study measuring ANGPTL-4 before and after BMI-loss. In the cross-sectional study, circulating ANGPTL-4 levels were lower in children with obesity than in those with normal weight. Moreover, ANGPTL-4 presented a negative correlation with BMI, waist circumference, weight, insulin, homeostasis model assessment of insulin resistance index (HOMA index), triglycerides, and leptin, and a positive correlation with FFA and vitamin-D. In the longitudinal study, the percent change in plasma ANGPTL-4 was correlated with the percent change in FFA, total-cholesterol and high-density lipoprotein cholesterol. This study reveals a significant association of ANGPTL-4 with pediatric obesity and plasma lipid profile. Idioma: Inglés DOI: 10.3390/nu11061340 Año: 2019 Publicado en: NUTRIENTS 11, 6 (2019), 1340 [14 pp.] ISSN: 2072-6643 Factor impacto JCR: 4.546 (2019) Categ. JCR: NUTRITION & DIETETICS rank: 17 / 89 = 0.191 (2019) - Q1 - T1 Factor impacto SCIMAGO: 1.329 - Nutrition and Dietetics (Q1) - Food Science (Q1)