Fig. 2. Apical plasma membrane surface of individual endothelial cells (HUVEC). Cells were exposed for 72 hours to solvent (control), to aldosterone (aldo), to aldosterone and spironolactone (aldo+spiro), to dexamethasone (dexa), or to dexamethasone and RU486 (dexa+RU). Mean values ± s.e.m. are shown; the number of scans is shown in the bars, each scan represents between 7-15 cells. Asterisk indicates significant difference in comparison with control (P<0.01).