FIG. 1.

Histological images of ectopic implants after 2 months and stained with hematoxylin and eosin (A–F) and analyzed by polarized light (G–I). Black rectangles indicate the areas from which higher magnification images where taken. (A, D, G) noncell-seeded empty scaffold; (B, E, H) bone marrow mesenchymal stem cell (BM-MSC)-seeded scaffolds; (C, F, I) umbilical cord mesenchymal stem cell (UC-MSC)-seeded scaffolds. s, scaffold; ft, fibrous tissue; b, bone; cft, compact fibrous tissue; (↑), polarized light signal. Scale bars=600 μm (A–C) and 100 μm (D–I). (n=4 for both cell-seeded and not seeded scaffold groups). Color images available online at www.liebertpub.com/scd