Restenosis following balloon dilation of benign esophageal stenosis

Table 1 Source of antigens and their effective concentrations

First antibody			Second antibody
Goat antihuman PDGF	Promega	1:40	Biotinylated house antigoat IgG	Vector	1:200
Mouse antihuman FN	Life	1:20	Biotinylated house antimouse IgG	Vector	1:200
Mouse antihuman PCNA	Maxim	1:20	Biotinylated house antimouse IgG	Maxim	1:200

Statistical analysis: Data were expressed as the ¯x ± s. Statistical analysis was performed using the unpaired or paired t-test. A probability value less than 0.05 was considered significant.

Table 2 Morphologic changes in benign esophageal stricture and esophageal restenosis (area, mm²; perimeter, mm)

	Control group	Experimental group
A1	0.49 ± 0.14	0.75 ± 0.18b
A2	1.70 ± 0.42	1.97 ± 0.33a
A3	2.20 ± 0.45	2.72 ± 0.46a
P1	4.83 ± 1.52	6.65 ± 1.22b
P2	6.89 ± 1.96	8.80 ± 1.67b
P3	9.86 ± 2.25	14.19 ± 2.89b

^bP < 0.01,

^aP < 0.05 vs control group and experimental group. Abbreviations: A1: cross-sectional area of mucosa of esophagus, A2: cross-sectional area of muscle layer of esophagus, A3: cross-sectional area of entire esophagus wall, P1: perimeter of mucosa of esophagus, P2: perimeter of muscle layer of esophagus, P3: perimeter of entire esophagus wall.