A higher frequency of T allele for the TGF-β1 codon 10T/C (p = 0.047, OR 2.810, and CI 95% 1.890–9.148) and C allele for the IL-10 −819T/C (p = 0.033, OR 0.338, and CI 95% 1.107–1.154) was also observed in patients with hypertension. The gene discussed is IL10; the disease is Hypertension.