Table 1.

Apoptosis analysis of SP and non-SP cells

	SP cell (%)	Non-SP cell (%)
Active cell	95.1 ± 1.4%	84.2 ± 3.6%*
Early apoptosis	1.2 ± 0.6%	2.9 ± 1.6%
Late apoptosis	3.2 ± 0.8%	14.7 ± 5.2%
Necrotic cell	0.5 ± 0.3%	1.5 ± 1.6%
Early–late apoptosis	4.4 ± 1.2%	17.6 ± 3.7%*

*P < 0.05 t-test.