Figure 7: 90Sr exposure and cytokine release.

(a) Intracellular cytokine levels obtained by cytokine array in control cells or after 7 days of exposure to 1 or 10 kBq.mL−1 of 90Sr. Results are presented as uncropped blots, uniformly adjusted for contrast. (b) Concentrations of IL-1ra, M-CSF, TIMP-1, MCP-1 and SDF-1 (pg.mL−1) in cell supernatants in control cells and after 72 hours and 7 days of exposure to 1 and 10 kBq.mL−1 of 90Sr (Student’s t-test, n = 4, *p < 0.05).