Perfil de ácidos grasos libres (AGL) en suero de jóvenes colombianos con obesidad y síndrome metabólico

ABSTRACT: Obesity produces greater circulation of free fatty acids (FFA). In adults, the FFA composition changes in states of obesity; in adolescents, the results are contradictory. This study compare the FFA profile of obese youth with and without Metabolic Syndrome (MetS) and explore the association between FFA and metabolic alterations of obesity and MetS. A cross–sectional study with 96 young people between 10 and 18 years old was divided into three groups: 1) obese youth with MetS, 2) obese youth without MetS; and 3) adequate weight (AW), matched according to age, gender, pubertal maturation and socioeconomic stratum. The nutri- tional status was classified according to the body–mass index (BMI), according to the World Health Organization 2007 (WHO, 2007); the waist circumference (WC), adiposity, lipid profile, highly–sensitive reactive C protein (hsRCP), glucose, insulin and insulin resistance (IR), according to the homeostatic model assessment (HOMA Calculator Version 2.2.2). The FFA serum concentration was determined by gas chromatography. Both obese groups had higher adiposity, inflamation (hsRCP), FFA totals and frequency palmitoleic–16:In7, compared to AW. The obese with MetS presented more metabolic alterations, a greater amount of dihomo–γ–linolenic (DHGL-20:3n6) and a 20:3n6/18:2n6 relation, indicative of increased activity of Δ6 desaturase (D6D). The FFA totals, palmitoleic–16:1n7, DHGL–20:3n6, D6D activity and hsRCP significantly correlated with variables of adiposity, IR and triglicerides. The results in obese with MetS corroborate the association among central obesity, inflammation and increased lipolysis in visceral adipose tissue and metabolic alterations.

• Autores: Bermúdez Cardona, Juliana; Velásquez Rodríguez, Claudia María
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2014
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/12038
• Acceso en línea: http://hdl.handle.net/10495/12038
• Palabra clave: Obesidad; Obesity; Síndrome metabólico; Metabolic syndrome; Àcidos grasos libres; Free fatty acid; Jóvenes; Young
• Rights: openAccess
• License: https://creativecommons.org/licenses/by-nc/2.5/co/