Figure 5. NF-κB decoy ODN treatment reduced osteoclast activation, and has no significant effects on osteoblastic activity in the distal femur in response to UHMWPE particles with or without LPS.
(a) TRAP staining was used to determine active osteoclast number (upper panel), and alkaline phosphatase (ALP) was used to determine osteoblast number (lower panel). The TRAP+ (b) and ALP+ (c) cell numbers were counted manually, and the numbers were normalized as described in Materials and Methods section. PE: UHMWPE particles; UNT: untreated control; S-ODN: scrambled ODN. *p< .05, ** p< .01