Table 2 Comparison of collagen content and the expression of transforming growth factor-beta1, α-smooth muscle actin and interleukin 6 among three groups.

Day3

SFB group(n = 5)

15.09 ± 1.14

0.17 ± 0.03

0.21 ± 0.03

0.23 ± 0.03

SSB group(n = 5)

14.88 ± 0.89

0.16 ± 0.03

0.18 ± 0.02

0.17 ± 0.01

PDS group(n = 5)

13.79 ± 1.11

0.15 ± 0.02

0.20 ± 0.02

0.17 ± 0.01

p-value

0.153

0.507

0.175

 < 0.001*

p_A-B

0.986

0.860

0.249

0.018^B

p_A-C

0.284

0.597

0.669

0.017^C

p_B-C

0.331

0.971

0.771

0.927

Day7

SFB group(n = 4)

28.53 ± 3.46

0.32 ± 0.04

0.31 ± 0.01

0.32 ± 0.03

SSB group(n = 5)

25.84 ± 1.45

0.21 ± 0.05

0.23 ± 0.01

0.24 ± 0.01

PDS group(n = 5)

25.74 ± 1.87

0.23 ± 0.06

0.23 ± 0.01

0.25 ± 0.02

p-value

0.178

0.038*

 < 0.001*

 < 0.001*

p_A-B

0.528

0.037^B

 < 0.001^B

0.036^B

p_A-C

0.513

0.173

 < 0.001^C

0.044^C

p_B-C

1.000

0.911

0.894

0.703

Day14

SFB group(n = 4)

46.68 ± 3.10

0.29 ± 0.03

0.34 ± 0.02

0.22 ± 0.01

SSB group(n = 5)

43.47 ± 2.86

0.23 ± 0.03

0.26 ± 0.01

0.19 ± 0.02

PDS group(n = 5)

44.38 ± 4.05

0.23 ± 0.04

0.27 ± 0.02

0.18 ± 0.01

p-value

0.389

0.075

 < 0.001*

0.003*

p_A-B

0.405

0.120

0.001^B

0.034^B

p_A-C

0.745

0.201

0.001^C

0.014^C

p_B-C

0.971

0.998

0.715

0.947