Figure 4.
RT-qPCR analysis of the mRNA expression of biomarkers related to both (A) osteoclast including TRAP, Cathepsin K, NFATc1; and (B) osteoblast including CoL1A2, ALP, Osterix, and OCN. Statistical significance was assessed using two-tailed Student t test; **p < 0.01 versus WT, ***p < 0.001 versus WT, NWT = 15, NGPR1−/− = 6. CoL1A2 = collagen type I alpha 2; OCN = osteocalcin; RT-qPCR = real-time quantitative polymerase chain reaction; TRAP = tartrate-resistant acid phosphatase; WT = wild type.