Fig. 3.
Gene expression of adipocyte and osteoblast markers in mMSC derived from 6-month- and 20-month-old mice. Gene expression was determined using quantitative real-time RT-PCR as described in Experimental procedures. Values were normalized to the expression of GAPDH, and expression in old marrow (20-month-old) is presented as the fold increase or decrease of that in adult marrow (6-month-old). Error bars represent SD. Col, collagen; OC, osteocalcin. *P < 0.05.