It was also shown that non-affected skin obtained from patients with psoriasis presents a higher protein level of MMP9 comparing blepharoplasty tissue 136.16 ± 22.92 ou/μm2 versus 109.94 ± 1.6 ou/μm2 (p = 0.0110), as shown in Fig. 5B. The gene discussed is MMP9; the disease is psoriasis.