APOB and myeloid sarcoma: We found significant negative correlations between the serum levels of AOPPs and the cholesterol content of total LDL (LDL-C/LDL-apoB) in the HVs and patients with MS, as well as the cholesterol content of LDL subclass 2 (LDL2-C/LDL2-apoB) in the HVs and LDL subclasses 3 (LDL3-C/LDL3-apoB) and 4 (LDL4-C/LDL4-apoB) in the patients with MS.