FIG. 4.

(Left to right) TUNEL staining of (A) negative control (no fluorescein-dUTP labeling solution), positive control (gel treated with DNase before labeling), and Day 5 gel treated with octanol and left for long-term recovery, and (B) negative control (no fluorescein-dUTP labeling solution), positive control (gel treated with DNase before labeling), and Day 5 gel treated with AGA and left for long-term recovery. Dark blue staining indicates cells undergoing apoptosis, scale bar is 250 μm. Color images available online at www.liebertpub.com/tea