Figure 1. High Na+ increases the number of adherent monocytes on endothelial cells.
(A) In the presence of aldosterone (Aldo) high Na+ increases the number of adherent monocytes on an endothelial monolayer. Application of the pro-inflammatory cytokine TNFα enhances the effect. (B) Under shear stress (8 dyn/cm2) the effect of the Na+-induced monocyte adhesion is increased. (C) Aldosterone receptor antagonism with spironolactone prevents the Na+-induced monocyte adhesion. (D) Enzymatic degradation of the endothelial glycocalyx with heparinase (Hep) increases the number of adherent monocyte (N = 4; * indicates p ≤ 0.05).