Laboratory and serological exams showed significant differences according to the data presented in Table 3, where ANA (p < 0.001; N = 533) and anti-DNAds (p = 0.035; N = 450) were prevalent in patients with LN, and ANCA titers (p = 0.011; N = 305) prevailed in patients with systemic vasculitis (data not shown in Table 3). The gene discussed is BTG3; the disease is necrotizing vasculitis.