205691.fig.002a
(a)
205691.fig.002b
(b)
205691.fig.002c
(c)
205691.fig.002d
(d)
Figure 2: Examples of tissue cross-sections. (a) DAPI-stained nuclei. (b) Apoptotic nuclei as indicated by the TUNEL assay. (c) The basal lamina of fibers was identified by immunocytochemistry. (d) Overlay of DAPI, TUNEL, and lamina staining. The arrows indicate examples of apoptotic nuclei.