ITLN1 and endothelial dysfunction: Antinflammatory effects of omentin, including suppression of inflammation induced by TNF-α and CRP in vascular endothelial cells, have been proposed to be involved in its vasoprotective effects, in humans (Tan et al., 2010; Yamawaki et al., 2011), and reduced concentrations of omentin in plasma have been proposed as a marker of endothelial dysfunction (Moreno-Navarrete et al., 2011).