Atrial Natriuretic Factor and Ambulatory Blood Pressure in Young Male Subjects with Normal or Borderline Office Blood Pressure

Abstract

Plasma levels of immuno-reactive atrial natriuretic factor (ANF) and ambulatory blood pressure were studied in 42 male subjects, aged 18 to 31 y, including 24 subjects with normal BP and 18 with borderline essential hypertension. ANF was measured in the morning (9 a.m.-12 a.m.), with the subjects in the supine and in the upright positions. Ambulatory BP was determined in all subjects every 15 minutes, for a whole 24 hour period. A scatter plot of office SBP or DBP versus upright or supine ANF suggested

Key Words:

• Atrial natriuretic factor
• ambulatory blood pressure
• borderline hypertension