Table 1 Comparison of rat skin thickness and density during four weeks: group treated with plasma, the control group.

From: The quantitative investigation of spark plasma on skin parameters with skin elasticity, thickness, density, and biometric characteristics

Groups

Plasma

Control

Measurement time

Before

After procedure

After 2 weeks

After 4 weeks

p value

The percentage of changes (%)

Before

After 2 weeks

After 4 weeks

p value

The percentage of changes (%)

Skin density (%)

13.46

10.68

14.54

19.71

0.0389

p < 0.05

46.43

14.44

12.11

14.29

0.9045

p > 0.05

− 1.03

Skin thickness (µm)

810.5

801

880.3

1019

0.0361

p < 0.05

25.72

882.6

908.2

852.6

0.6695

p > 0.05

− 3.39

Epidermis density (%)

42.08

32.29

38.74

52.22

0.0428

p < 0.05

24.09

47.58

38.94

46.24

0.6963

p > 0.05

− 2.81

Epidermis thickness (µm)

135.6

142

150.6

172

0.0258

p < 0.05

26.84

148

151.5

145.7

0.7028

p > 0.05

− 1.55

Dermis density (%)

7.878

4.973

9.437

13.1

0.0427

p < 0.05

66.28

7.69

6.705

7.98

0.8053

p > 0.05

3.77

Dermis thickness (µm)

672.6

648.6

743.8

884.2

0.0392

p < 0.05

31.46

736

781.8

694.5

0.5037

p > 0.05

− 5.63

  1. [p value (before, after four weeks), The percentage of changes from the commencement of the tests to the fourth week of follow-up]].
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