GSTM1 and cyclic hematopoiesis: In addition, on day 28, the RBC, Hb, and HCT in the CH group increased to 11.93 ± 1.64 × 1012/L, 244.12 ± 26.38 g/L, and 68.82 ± 8.16%, respectively, compared to 8.18 ± 0.75 × 1012/L, 177.33 ± 17.95 g/L, and 44.74 ± 5.40%, respectively, in the control group (P < 0.05; Table 1).