Natriuretic action of angiotensin(1–7)

Evidence that angiotensin (1–7) (Ang(1–7)) is biologically active and can be synthesized by the kidney prompted us to examine its actions in the rat, isolated kidney. Ang(1–7) had three major effects producing, (1) a substantial natriuresis and diuresis, (2) an increase in urinary sodium concentration associated with a fall in potassium concentration and (3) an increase in glomerular filtration rate without affecting renal vascular resistance. Thus, Ang(1–7) may participate in the renal effects of the renin‐angiotensin system.