APOB and diffuse large B-cell lymphoma: Comparison of lipid levels between the DLBCL group and the healthy control group revealed that DLBCL patients had significantly lower levels of TC, HDL-C, LDL-C, Lp(a), ApoA1, and ApoB compared to healthy controls (p < 0.05), while ApoE levels were significantly higher in DLBCL patients (p < 0.05, Figure 1).