Table I.

AnnexinV Staining

		% negative (peak mean)		% positive (peak mean)
OPN
24 h		90.6 (62.59)		9.4 (106.2)
48 h		88.9 (92.36)		11.1 (186.97)
PDL
24 h		69.9 (76.11)		30.4 (145.01)
48 h		50.2 (105.52)		49.08 (192.25)

Cells were plated on osteopontin (OPN) or polylysine (PDL). 24 and 48 h after plating, cells were harvested and stained with AnnexinV-FITC and analyzed by flow cytometry. Negative and positive percentage values at the two timepoints are indicated. In addition, the peak mean (in parentheses) is also indicated.