AMPH showed upregulation in SLE patients with SSA52 (p = 7.8E-3, log2FC = 2.58), AHA (p = 3.1E−3, log2FC = 2.02), ESR (p = 1.4E-4, log2FC = 3.46), and CRP (p = 6.3E-4, log2FC = 2.86). Here, ESR1 is linked to systemic lupus erythematosus.