Riv enhances NGF-induced neurite outgrowth in PC12 cells.

PC12 cells were treated for 24 h with NGF with or without Riv. (A) Culture images at a magnification of 400×. Scale bar: 50 μm. (B) Neurite length was determined as indicated in the Materials and Methods section. Values represent the mean ± SD for all PC12 cells contained within five randomly chosen fields for each condition. All experiments were repeated at least three times **p C) Neurite lengths in the presence of various concentrations of NGF (0–250 ng/mL).