Figure 3

TEM micrographs of chondrocytes. (A) Normal group. Healthy normal chondrocytes contain a euchromatic nucleus, very abundant rough endoplasmic reticulum, and long filopodia (× 10,000 magnification). (B) AIA group. AIA chondrocytes exhibit short filopodia and show a reduction in the number of Golgi bodies and rough endoplasmic reticulum. (C) TGP group. TGP chondrocytes have a strong reduction of the number of vacuoles. The fibrosis on the surface of the cartilage was larger and wider (× 15,000). (D) IND group. Chondrocytes from this group had an abundance of vacuoles, similar to what was seen in the AIA group (× 20,000) (F, filopodia; N, euchromatin nucleus; RER, rough endoplasmic reticulum).