25 September 2012
Vol 5, Issue 243

About The Cover

Cover image expansion

Online Cover This week features a Research Article that shows that the guanine nucleotide exchange factor cytohesin-1 is required for efficient myelin production by Schwann cells. The image shows an electron micrograph of a cross section of sciatic nerves from 7-day-old cytohesin-1 knockout mice. [Image: Noriko Nemoto, Kitasato University School of Medicine, Sagamihara, Japan, and Junji Yamauchi, National Research Institute for Child Health and Development, Setagaya, Japan]