Extracellular matrix and cellular content in agarose and RAD hydrogels seeded with bovine bone marrow stromal cells (BMSCs) and cultured in TGF or TGF + dexamethasone (Dex) medium. (A) Sulfated glycosaminoglycan (sGAG) content, (B) DNA content, (C) proteoglycan synthesis, (D) DNA synthesis, (E) percent sGAG retained, (F) hydroxyproline content. Values are mean ± standard error of the mean. n = 13-16 (3-4 hydrogels × 4 animals). †Versus TGF, *versus day 7, §versus day 14, P < 0.05.