MMP9 and Bloom syndrome: The immunoblot of MMP-9 in macrophages without BLM induction was set as relative intensity 1 (Lane 1, Figure 9C); however, the BLM-induced macrophages showed a difference in MMP-9 of only 0.86±0.41-fold, indicating no significant alteration in the MMP-9 level of macrophages with or without BLM (Lane 3, p > 0.05).