Mesenchymal stem cells and collagen patches for anterior cruciate ligament repair

Figure 7 Hydroxy-Proline and glycosaminoglycan content. A: HYP content assay; B: GAG of collagen patches seeded with anterior cruciate ligament-TCs and/or MSCs on NC and CG normalized per dry weight carrier for the collagen patches for day 1 and day 7 of the experiment (values are means ± SEM, n = 3 experiments for day 1, 4 for day 7); C: Percentage change of HYP to GAG ratio relative to day 1 of NC and CG patches. b denotes a significant P < 0.01. GAG: Glycosaminoglycan; HYP: Hydroxy-proline; MSC: Mesenchymal stem cell; TC: Tenocytes; NC: Novocart™; CG: Chondro-Gide™; SEM: Scanning electron microscope.