Original articleGhrelin levels could be involved in the improvement of insulin resistance after bariatric surgeryLos niveles de Ghrelina podrían estar implicados en la mejora de la resistencia a la insulina después de la cirugía bariátrica

Background and objective Ghrelin is a gastrointestinal peptide involved in regulation of body weight and energy balance. However, its behavior after bariatric surgery and its relationship to insulin resistance are still controversial. A simultaneous assessment was made of the association between changes in ghrelin levels and different variables after three types of bariatric surgery.