A Novel Technique for Conjunctivoplasty in a Rabbit Model: Platelet-Rich Fibrin Membrane Grafting

Table 2

The comparison of the immunohistochemical staining.

Day	PRF membrane group			Control group
	VEGF	PGDF	TGF-	VEGF	PGDF	TGF-
1	+	+	+	−	+	−
3	++	++	++	+	++	+
7	++	++	++	++	++	++
28	−	−	−	++	+	+

−: Grade 0, no staining.
+: Grade 1, minimal staining.
++: Grade 2, moderate to severe staining.
PRF: platelet-rich fibrin; VEGF: vascular endothelial growth factor; PDGF: platelet-derived growth factor; TGF-: transforming growth factor-beta.