Table 1.

Number of cells positive to AnnexinV and/or Propidium Iodide under microgravity application.

AnnexinV	Propidium Iodide	N° of cells (%)			Description
		1h	6h	24h
+	-	9.2 ± 1.1	24.4 ± 1.9*	32.7 ± 2.8§	Early apoptosis
+	+	8.4 ± 0.9	4.1 ± 0.4*	17.6 ± 1.5§	Late apoptosis
-	+	0.5 ± 0.1	0.7 ± 0.1	1.1 ± 0.2	Necrosis
-	-	81.3 ± 5.1	71.6 ± 6.0*	48.5 ± 4.2§	Surviving cells

Data presented as Mean ± S.E.M. * =p < 0.05 vs. 1h; § =p < 0.05 vs. 1h and 6h.