In patients with T1DM, median Apolipoprotein B was significantly higher [(75.9 (63.7–83.4) vs 62.8 (53.3–74.3) mg/dL, P = 0.001] and the median Apolipoprotein A-I/Apolipoprotein B ratio was significantly lower [2.03 (1.59–2.32) vs 2.29 (1.92–2.69), P = 0.004] compared to HC. The gene discussed is APOA1; the disease is type 1 diabetes mellitus.