Fig. 6: The low expression of miR-206 of hUCMSCs significantly improved the physiological function of nerve cells in the hippocampus.

a HE staining of the hippocampus of D-gal-induced aging mice. b Nissl staining of the hippocampal CA1 and DG regions of D-gal-induced aging mice. Bar = 200 µm. Enlarged pictures after the black frame. Bar = 50 µm. c Quantitative analysis of the number of neurons using ImageJ. The results are expressed as the Mean ± SD, *p < 0.05, verses D-gal+PBS groups, #p < 0.05, verses D-gal+Cell groups (n = 6).