Cover picture: A hypercellular nodule in the lateral ventricle subventricular zone of a rat treated with an intrastriatal infusion of transforming growth factor α. These nodules contained both GFAP+ (red) and nestin+/GFAP+ colocalized (yellow) cells. For details, see the article by Cooper and Isacson in this issue Wei-Yang Lu (pages 8924–8931).