Summary of results.

Results for markers of apoptosis (Bax and Bcl-2 ratio, TUNEL intensity) in the treatment groups with and without previous hypoxia. Values are means and range. Midazolam groups have not been compared against isoflurane and sevoflurane groups. * P < 0.05 vs. control and sevoflurane. ** P < 0.01 vs. control, isoflurane 0.5 MAC, isoflurane 1 MAC, and sevoflurane 2 MAC. Summary of results.