Fig. 7.

Effect of local inflammation of DRG 5 (LID) on macrophage infiltration/activation in SG3 and SG4. Sections of SG3 and SG4 from rats 3 (A) and 7 days (C) after LID or sham LID immunostained with the macrophage marker Iba-1. B Summary data indicated that the increase in Iba-1 did not reach significance in either SG on day 3. D Summary data indicated a significantly higher Iba-1 signal on day 7, only in SG4. **P < 0.01 between the two groups, t-test; n = 4–5 rats of either sex per group; scale bars, 50 µm.