The Effect of an Acute or Chronic Treatment with Indomethacin on the Blood Pressure of Doca/salt and Spontaneously Hypertensive Rats

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Abstract
The intravenous infusion of indomethacin (5 mg/kg/min) for 10 min did not modify the systolic blood pressure of conscious, unrestrained doca/salt hypertensive, spontaneously hypertensive (SH) and normotensive Wistar (NW) rats. However, this dose of indomethacin was sufficient to prevent completely the hypotensive action of arachidonic acid in these animals. The chronic administration of indomethacin to doca/salt treated- and young SH rats was without any effect on the development of hypertension in these animals. These results suggest a limited role for endogenous PGs during the development of these two types of hypertension.