Effects of bFGF on regeneration of retinal pigment epithelium cell in vivo;

To explore the effects of formaldehyde induced DNA-protein crosslinks (DPC) and the repair process of DPC, purebred Kunming mice and HepG2 cell line were used as experimental materials in vivo and in vitro respectively, and KCl-SDS assay were applied to determine the amount of DPC and the repair process.

Expression substance and content substance are the origin and target in communication as well as the starting point and ending point in the four levels of language coding theory.