Figure 4.

Levels (picograms in 100 μg of protein) of tumor necrosis factor α (TNF-α), interleukin (IL) 1β, and IL-6 in the bone marrow (BM), lung, and testis collected at 6 months from the same BALB/cJ mouse after exposure to low doses (0.05 or 0.1 Gy) of ¹³⁷Cs γ rays. Mice exposed to 0 or 1.0 Gy of ¹³⁷Cs γ rays were used as a sham or positive control, respectively. There were 5 mice in each group. P values (Student t test) indicate statistical differences (at the significant level of P value <.05) in the levels of TNF-α, IL-1β, and IL-6 between exposed and corresponding tissues from the sham control group.