Contents

01 December 2009
Vol 2, Issue 99

About The Cover

Cover image expansion

Online Cover This week's issue features a Research Article describing how protein kinase G (PKG) regulates differentiation of and heat production by brown adipose tissue in mice. The image shows the infrared thermal profiles of a newborn wild-type (right) and PKGI-deficient (left) mouse. Because the development of brown adipose tissue in PKGI-deficient mice is impaired, they have lower body temperatures. Red and white represent lower and higher temperatures, respectively. [Image: Bodo Haas, Institute for Pharmacology and Toxicology, University of Bonn]