Effects of Angiotensin on the AT1R (IMAGE) University of Southern California Caption This is an illustration of the effects of angiotensin on the AT1R (vasoconstriction, high blood pressure) compared to blocking the receptor (relaxed blood vessel, normal blood pressure). Credit Courtesy of Katya Kadyshevskaya / Bridge Institute at USC Usage Restrictions For use in new stories only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.