The Influence of the Preservation Method and Gamma Irradiation Sterilization on TGF-β and bFGF Levels in Freeze-Dried Amnion Membrane (FD-AM) and Amnion Sponge

Table 5

Comparison of bFGF levels in amnion sponge before and after radiation sterilization.

	Postirradiated 15 kGy	Postirradiated 25 kGy
Preirradiated	<0.0001^ab	<0.0001^ab

^a value<0.05. ^bPaired-sample t-test.