(a)
(b)
Figure 1: Correlation between TRAIL and resistin and between TRAIL and lipocalin-2/ngal in the whole sample (). Scatter plot showing the relationship between the circulating levels of TRAIL and resistin (a) and between circulating levels of TRAIL and lipocalin-2/ngal (b) in the whole cohort of samples. Insets show the two different relationship between TRAIL and resistin (inset in (a)) and between TRAIL and lipocalin-2/ngal (inset in (b)) after division of the whole population in two groups according to the upper limit of TRAIL decile IV (TRAIL: 98.59 pg/mL). Empty square data points = samples with TRAIL levels higher than TRAIL decile IV; full red circle data points = samples with TRAIL levels lower than TRAIL decile IV.