Figure 2From: Effects of high frequency loading on RANKL and OPG mRNA expression in ST-2 murine stromal cells RANKL, OPG, and RANKL/OPG mRNA levels in ST-2 murine stromal cells after 60 min OFF. Loading frequencies of 1, 10, or 20 Hz were used. This resulted in loading cycles of 3600 cycles (1 Hz), 36000 cycles (10 Hz), or 72000 cycles (20 Hz) of OFF. N = 4 for each group.Back to article page