[Comparative analysis of the efficacy of sympathetic effects on resistive vessels in spontaneously hypertensive and normotensive rats undergoing perfusion at a constant flow rate and under constant pressure].

The authors analyse the efficacy of sympathetic constrictive effects under the conditions of alternative perfusion. A more intensive vasoconstrictive response in perfusion with a constant discharge was observed in spontaneously hypertensive rats as compared to normotensive ones, and in perfusion with a constant pressure the reverse correlation was noted.