Increased cartilaginous and bony matrix in remodeling fracture calluses of YF mice.

<p>For histological analysis, mid-sagittal sections of fractured femora were stained with Safranin O and fast green and quantitated by static histomorphometry. <b>A.</b> Representative sections at 7, 14, 21, and 28 days post-fracture. Bar charts show <b>B.</b> Total callus area <b>C.</b> Cartilaginous matrix area <b>D.</b> Bony matrix area. <b>E.</b> Ratio of cartilaginous matrix area over total callus area <b>F.</b> Ratio of bony matrix area over total callus area. n = 5–6, *p<0.05 vs. WT.