Mayas Torres, María DoloresOrtega, Francisco JMacías-González, ManuelBernal López, María RosaGómez-Huelgas, RicardoFernández-Real, José MTinahones, Francisco J2013-02-072013-02-072010-01-15Mayas MD, Ortega FJ, Macías-González M, Bernal R, Gómez-Huelgas R, Fernández-Real JM, et al. Inverse relation between FASN expression in human adipose tissue and the insulin resistance level. Nutr Metab (Lond); 7:3http://hdl.handle.net/10668/756Journal Article;BACKGROUND Adipose tissue is a key regulator of energy balance playing an active role in lipid storage and may be a dynamic buffer to control fatty acid flux. Just like PPARgamma, fatty acid synthesis enzymes such as FASN have been implicated in almost all aspects of human metabolic alterations such as obesity, insulin resistance or dyslipemia. The aim of this work is to investigate how FASN and PPARgamma expression in human adipose tissue is related to carbohydrate metabolism dysfunction and obesity. METHODS The study included eighty-seven patients which were classified according to their BMI and to their glycaemia levels in order to study FASN and PPARgamma gene expression levels, anthropometric and biochemical variables. RESULTS The main result of this work is the close relation between FASN expression level and the factors that lead to hyperglycemic state (increased values of glucose levels, HOMA-IR, HbA1c, BMI and triglycerides). The correlation of the enzyme with these parameters is inversely proportional. On the other hand, PPARgamma is not related to carbohydrate metabolism. CONCLUSIONS We can demonstrate that FASN expression is a good candidate to study the pathophysiology of type II diabetes and obesity in humans.enHiperglucemiaResistencia a la InsulinaObesidadComplejo Ácido Graso SintetasaÍndice de Masa CorporalSecuencia de basesMetabolismo de los Hidratos de CarbonoHumanosMedical Subject Headings::Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Glucose Metabolism Disorders::HyperglycemiaMedical Subject Headings::Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Glucose Metabolism Disorders::Hyperinsulinism::Insulin ResistanceMedical Subject Headings::Diseases::Nutritional and Metabolic Diseases::Nutrition Disorders::Overnutrition::ObesityMedical Subject Headings::Chemicals and Drugs::Macromolecular Substances::Multiprotein Complexes::Multienzyme Complexes::Fatty Acid Synthetase ComplexMedical Subject Headings::Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Mass IndexMedical Subject Headings::Phenomena and Processes::Genetic Phenomena::Genetic StructuresMedical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::HumansMedical Subject Headings::Phenomena and Processes::Metabolic Phenomena::Metabolism::Carbohydrate Metabolismresearch article20148112open access10.1186/1743-7075-7-31743-7075PMC2820025