Arterial Thickening (image) Cincinnati Children's Hospital Medical Center Share Print E-Mail Caption This confocal microscopic image shows an artery in the lung of a laboratory rat used to model the often-fatal condition pulmonary arterial hypertension (PAH). The artery's vascular wall is thickening as noted by the red color in the wall's smooth muscle. Scientists report in Nature Communications a new therapeutic target for PAH. Credit Cincinnati Children's Usage Restrictions None Share Print E-Mail 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.