Blood Pressure Testing Device (IMAGE) DOE/SLAC National Accelerator Laboratory Caption An electronic device, right, connected to an arm cuff, is used to monitor blood pressure. In a study at SLAC's Linac Coherent Light Source X-ray laser, researchers studied how a hypertension drug binds to a cellular receptor known as an angiotensin II type 1 receptor. Blocking this receptor's activation can lower blood pressure. Credit SLAC National Accelerator Laboratory Usage Restrictions None 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.