The percentage of engraftment did not correlate with increased number of GFP+ cells in the brain. (a) Percentages of engraftment, (b) GFP+ cells in the brain (Bar = 100 µm), and (c) alcian blue staining in NTMLD mice (Bar = 200 µm). (d) Quantitative analysis of sulfatide contents by biochemical assay. *P < 0.05 compared to NTMLD. B4MLD, HoxB4-transduced BM cells transplanted MLD mice; GFP, green fluorescent protein; MIGMLD, GFP-transduced BM cells transplanted MLD mice; NTMLD, nontransduced BM-transplanted MLD.