Table 2 Pearson’s correlation coefficient analysis to determine the correlation between age of umbilical cord blood or peripheral blood donors and the concentration or activity of different bioactive components of platelet-rich plasma (PRP).

From: Correlation of bioactive components of platelet rich plasma derived from human female adult peripheral blood and umbilical cord blood with age

Variable

Group A (n = 12)

Group B (n = 12)

Group C (n = 12)

Group D (n = 12)

Pearson’s correlation with age

P

Age (years)

0.74 ± 0.03

22.00 ± 2.09

36.92 ± 6.65

58.25 ± 6.00

–

–

PLT (× 109/L)

337.67 ± 60.780

307.5 ± 61.78

214.92 ± 32.38

261.83 ± 56.09

 − 0.493

0.00**

WBC (× 109/L)

6.48 ± 1.99

6.59 ± 1.62

6.82 ± 3.17

5.67 ± 1.59

 − 0.100

0.51

IGF-1 (pg/mL)

19,268.75 ± 51,917.99

2241.83 ± 2517.11

324.26 ± 450.62

629.78 ± 1150.60

 − 0.245

0.094

EGF (pg/mL)

300.11 ± 237.66

560.72 ± 180.80

212.62 ± 105.22

218.54 ± 142.56

 − 0.285

0.049*

FGF-2 (pg/mL)

62.69 ± 47.37

168.42 ± 102.17

251.56 ± 195.07

174.53 ± 76.31

0.346

0.016*

VEGF-A (pg/mL)

366.07 ± 395.04

280.68 ± 222.42

215.41 ± 80.09

109.83 ± 47.49

 − 0.396

0.005**

PDGF-AA (pg/mL)

5875.28 ± 3005.83

12,291.33 ± 3313.06

8727.17 ± 3596.95

6260.4167 ± 1499.04

 − 0.053

0.722

PDGF-AB/BB (pg/mL)

1257.79 ± 595.33

8377.75 ± 2467.81

16,185.5 ± 8000.58

8494.67 ± 3588.78

0.448

0.001**

RANTES (pg/mL)

125,366.58 ± 85,548.04

184,753.75 ± 51,755.59

154,906.83 ± 49,305.29

130,228.1667 ± 72,719.14

 − 0.069

0.642

TIMP-1 (pg/mL)

89,911.33 ± 32,069.20

139,087.08 ± 28,465.14

90,831.25 ± 14,181.49

109,439.92 ± 20,915.35

0.069

0.642

TIMP-2 (pg/mL)

45,927.17 ± 6195.48

45,186.08 ± 5154.36

38,664 ± 2718.60

41,302 ± 4097.44

 − 0.411

0.004**

GDF11 (pg/mL)

128.47 ± 70.91

143.33 ± 101.94

202.47 ± 122.57

85.18 ± 38.45

 − 0.106

0.472

Clusterin (pg/mL)

13.35 ± 5.44

21.29 ± 4.67

98.38 ± 60.24

73.39 ± 36.40

0.503

0.000**

SOD activity (U/mL)

5.65 ± 2.71

6.20 ± 3.16

0.19 ± 0.04

0.52 ± 1.11

 − 0.634

0.000**

GPx activity (nmol/min/mL)

19.98 ± 4.07

34.0 ± 15.68

118.75 ± 17.02

104.32 ± 29.89

0.748

0.000**

CAT activity (nmol/min/mL)

167.71 ± 61.00

136.21 ± 36.74

51.38 ± 7.06

60.50 ± 20.39

 − 0.695

0.000**

  1. Values in this table were shown as mean ± standard deviation.
  2. PLT platelets, WBC white blood cells.
  3. *Represents P < 0.05.
  4. **Represents P < 0.01.
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