FIG. 2.

Chondrogenic differentiation and cartilage matrix production. (A) DNA and (B) GAG content normalized to the tissue wet weight. (C) GAG normalized to DNA contents. (D) Histology and immunohistochemistry evidencing the distribution of GAG (Alcian blue staining) and collagen type II (antibody). Magnified images are shown for the edge and center of the construct. Data are shown as average ± SD. Asterisk denotes significant differences between the groups, p < 0.05 (n = 4). (D) Scale bars: 50 μm. GAG, glycosaminoglycan. Color images available online at www.liebertpub.com/tea