Genetic background of presurgical morbidly obese patients may have an influence on follow-up and outcome. A genetic variant is the Trp64Arg missense mutation in the beta3-adrenoreceptor (beta3-AR) gene.
Institute of Endocrinology and Nutrition, School of Medicine and Unit of Investigation, Hospital Rio Hortega, University of Valladolid, Valladolid, Spain. dadluis@yahoo.es