Drag reduction by polyethylene glycol in the tail arterial bed of normotensive and hypertensive rats. K.L. Bessa, J.F. Belletati, L. dos Santos, L.V. Rossoni
and J.P. Ortiz.
Figure 2. Effect of PEG 4000 perfused at the flow rate of 2.5 mL/min on the pulsatile pressure acquired from tail arterial beds with intact endothelium (E+) (A and B, respectively) and after endothelial damage (E-) of Wistar rats and spontaneously hypertensive rats (SHR) (C and D, respectively). KHB = Krebs-Hanseleit-buffered solution. Relative time was calculated as actual time (t1) divided by total time (tt). N = 4-6 animals in each group. *P < 0.05 for KHB vs KHB + PEG (paired Student t-test). Differences were analyzed concerning peak pressure, delta of pulsatile pressure, and area under the pressure curve.