Fig. 4

Lymphocytes in blood 12 weeks after irradiation detected by flow cytometry. a Flow cytometry of B lymphocytes; (b) B lymphocyte numbers increased in blood after irradiation. c Flow cytometry of CD4⁺ T lymphocytes; (d) CD4⁺ T lymphocyte numbers decreased in blood after irradiation. e Flow cytometry of CD8⁺ T lymphocytes; (f) CD8⁺ T lymphocyte numbers increased in blood after irradiation. Data are presented as the means ± standard deviations; ^* P < 0.05 (n = 6/group)