Additionally, the same research team described that MMP-9and TIMP-1 concentrations were elevated in obese children and adolescents, and thatthe values of these parameters increased even further when obesity was accompaniedby hypertension.12 Moreover, Beloet al.21 reported that genotypesand haplotypes of MMP-9 gene modulate circulating MMP-9 levels in obese children andadoslecentes. The gene discussed is TIMP1; the disease is obesity disorder.