The levels of other proteins associated with lipid metabolism, namely, alpha-1-antichymotrypsin; alpha-1-antitrypsin; apolipoproteins A-1, B, D, E2, E3, E4, and L1; clusterin; hemopexin; kininogen-1; serum amyloid A-1; amyloid beta A-4; and paraoxonase-1, were comparable between PCOS subjects and controls (Figure 3 and Supplementary Table S1). This evidence concerns the gene SERPINA1 and polycystic ovary syndrome.