hrp0082p1-d2-69 | Diabetes (1) | ESPE2014

Activation of Insulin/IGF1 Signaling Could Increase Hypothalamic Lipid Anabolism in Non-Diabetic IRS2-Deficient Mice

Barrios Vicente , Baquedano Eva , Canelles Sandra , Gonzalez-Rodriguez Agueda , Burgos-Ramos Emma , Chowen Julie A , Frago Laura M , Valverde Angela M , Argente Jesus

Background: Insulin/IGF1 signaling plays a critical role in central glucose bioavailability and lipid metabolism. An increase in glucose disposal can generate reducing agents through the pentose-phosphate pathway necessary for the synthesis of free fatty acids (FFA). Disturbances in lipid synthesis are related to the appearance of insulin resistance and diabetes. The insulin receptor substrate 2 (IRS2) deficient mice (IRS2−/−) is an excellent model to st...

hrp0082p2-d1-416 | Growth Hormone | ESPE2014

Absence of GH Signaling Induces Hypothalamic Inflammation that is Reversed in Response to a High Fat Diet

Baquedano Eva , Ruiz-Lopez Ana , Pardo-Barquin Elena , Gosney Elahu S , Herpy James , Chowen Julie A , Argente Jesus , Kopchick John J , Frago Laura M

Background: The GH/IGF1 axis has important roles in growth, metabolism, lipid profile and body composition. GH receptor disrupted mice (GHRKO mice) are resistant to the action of GH, thereby, GHRKO mice are dwarf, hypoinsulinemic, hypoglycemic and obese. Consumption of a high fat diet (HFD) induces inflammatory processes in a multitude of peripheral tissues, including hypothalamus.Objective and hypotheses: Our aim was to evaluate the effect of HFD intake...