Figure 1.

Expression of MnSOD or catalase mRNA in different hematopoietic cell subsets after ionizing radiation. A quantitative analysis of (a) MnSOD and (b) catalase mRNA levels in C57BL/6J mice was performed with real-time RT-PCR; 4 or 8 Gy of TBI was used for the radiation exposure. Results are normalized to the levels of β-actin. Data are reported as means ± SEM (n = 3, *P < 0.05). CLP, common lymphoid progenitor; CMP, common myeloid progenitor; GMP, granulocyte/macrophage progenitor; LT-HSC, long-term repopulating hematopoietic stem cell; MEP, megakaryocyte/erythrocyte progenitor; MnSOD, manganese superoxide dismutase; RT-PCR, reverse transcription-PCR; ST-HSC, short-term repopulating HSC; TBI, total body irradiation.