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Effects of prenalterol on renal function in normal man
Acta Anaesthesiologica Scandinavica
|December 1, 1982
Summary
Prenalterol infusion significantly altered renal function in male volunteers, decreasing urine flow and free water excretion while increasing sodium excretion. Cardiovascular effects included increased systolic pressure and heart rate.
Area of Science:
- Pharmacology
- Nephrology
- Cardiovascular Physiology
Background:
- Prenalterol is a beta-1 adrenergic receptor agonist.
- Understanding its effects on renal function is crucial for clinical applications.
Purpose of the Study:
- To investigate the impact of prenalterol infusion on renal hemodynamics and function in healthy male volunteers.
Main Methods:
- Administered prenalterol infusion at 0.5 microgram/kg/min to 10 male volunteers.
- Monitored cardiovascular parameters, plasma catecholamine levels, plasma renin activity, and various renal function markers.
Main Results:
- Prenalterol increased systolic blood pressure and heart rate, while decreasing diastolic pressure.
- No significant changes were observed in plasma catecholamine levels or plasma renin activity.
- Renal hemodynamics remained unchanged, but urine flow rate and fractional free water excretion decreased significantly.
- Fractional sodium excretion increased, and fractional potassium excretion decreased.
Conclusions:
- Prenalterol infusion induces significant cardiovascular changes and alters renal excretory function in healthy males.
- The observed renal effects suggest a complex interaction beyond simple hemodynamic changes.