Figure 6From: Manipulation of valve composition to elucidate the role of collagen in aortic valve calcification Expression of later-stage osteoblastic markers osteocalcin (OCN) and bone sialoprotein (BSP) in undepleted vs. collagen-depleted leaflets was measured via RT-PCR after 6 days of in vitro culture; both markers were significantly elevated in collagen-deficient leaflets. *P < 0.05 compared to undepleted.Back to article page