02 October 2018
Vol 11, Issue 550

About The Cover

Cover image expansion

Online Cover This week features a Research Article that describes how the kinase AMPK causes pulmonary arteries to constrict in response to hypoxia to ensure that blood is diverted to oxygen-rich areas in the lung. This process, which is called hypoxic pulmonary vasoconstriction, is normally transient but is prolonged under certain circumstances, such as during ascent to altitude. The image shows a mountain climber at high altitude. [Image:]