One descriptive study undertaken with females aged between 12 and 18 years old, from acollege in Ribeirão Preto, was divided into groups: overweight/obesity (n=30) andcontrol (normal weight) (n=39) and indicated that the adolescents withoverweight/obesity presented greater levels of arterial pressure, glucose,triglycerides, uric acid, PAI-1, fibrinogen and insulin, and lower levels of HDLcholesterol, in relation to the control group. This evidence concerns the gene INS and obesity due to melanocortin 4 receptor deficiency.