We just published another paper by Y Lin, myself, A Liu, JF Tucker, K Rapp, L Luo, W Baehr, PS Bernstein, CB Watt, JH Yang, MV Shaw and RE Marc that examines neuronal sprouting or components of neuritogenesis in retinal remodeling found in retinal degenerative disease. The paper describes a control process for retinoid X receptors (RXRs) in neuritogenesis. If you are interested in some of the details, there is a more complete writeup over on Webvision.