Fig. 2

Representative relationships between filtration pressure (P; mmH2O) and flow rate (Q; mL/min) during the continuous filtration experiment using erythrocyte suspensions and HEPES-buffered saline. The P-Q relationships correspond to saline passages (empty square), filtrations of erythrocyte suspension obtained from the hypertensive patients (empty triangle), and those of the age-matched normotensive subjects (empty circle), respectively. P-Q curves in control saline were completely superimposable, indicating reproducibility. Flow rates in the hypertensive group were lower than those in the normotensive group at any given filtration pressure