In CF + xylene group, the proportion of Granulocyte-Monocyte Progenitor (GMP) (Lin-Sca1+c-kit+CD34+ CD16/32+) (22.1% vs. 24.8%), Common Myeloid Progenitorand (CMP) (8.22% vs. 11.9%) and Multipotent Progenitor (MEP) (34.6% vs. 37.8%) in BM were restored (Figure 1D left). The gene discussed is CD34; the disease is cystic fibrosis.