Quercetin changed quercetin - placebo for sE-selectin by -7.4 ng/mL ( 95 % CI : -14.3 , -0.56 ; P = 0.03 ) , that for IL-1 by -0.23 pg/mL ( 95 % CI : -0.40 , -0.06 ; P = 0.009 ) , and that for the z score for inflammation by -0.33 ( 95 % CI : -0.60 , -0.05 ; P = 0.02 ) .