Objective To compare the various purification methods in the culture of newborn rat olfactory ensheathing cells (OEC) for finding the more optimial purification method and providing higher purity seed cells in cell transplantation to repair spinal cord injuring. Methods Three kinds of purification methods ie differential adherent,differential adherent combined with Ara-C and differential adherent combined with NGFRp75 antibody purification method for purifying primary cultured newborn SD rat OEC were perfor...