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  • Title: Antihypertensive effect of prostacyclin (PGI2) in experimental hypertension and its influence on plasma renin activity in rats.
    Author: Schölkens BA.
    Journal: Prostaglandins Med; 1978 Nov; 1(5):359-72. PubMed ID: 364507.
    Abstract:
    The influence of intravenous injection of Prostacyclin (PGI2) on systemic blood pressure was investigated in conscious and anaesthetized hypertensive rats. PGI2 in doses of 1.0, 5.0 and 10.0 micrograms/kg showed a dose dependent antihypertensive effect in conscious rats with spontaneous and chronic renal hypertension. A similar response could be demonstrated in conscious rats with normal blood pressure with doses of 1.0, 10.0 and 100.0 micrograms/kg. In anaesthetized rats with acute renal hypertension or blood pressure increase, induced by continous infusion of Angiotensin II or Norepinephrine, PGI2 caused a marked decrease of blood pressure. PGI2 induced an increase of plasma renin activity in anaesthetized rats with doses of 0.1, 1.0 and 10.0 micrograms/kg. These findings support the suggestion of an antihypertensive role for PGI2 in experimental hypertension.
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