MPO and metabolic syndrome: Key adipokines in MetS encompass a range of biomarkers such as interleukins (including interleukin-1, -6, -10, and -18), adiponectin; resistin; tumor necrosis factor alpha; leptin; monocyte chemoattractant protein-1; angiotensinogen; plasminogen activator-inhibitor-1; myeloperoxidase (MPO) and E-selectin [34,35].