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Table 8 Results for total protein, transforming growth factor beta 1 and platelet derived growth factor isoform BB for age groups and their respective blood components

From: Effects of the breed, sex and age on cellular content and growth factor release from equine pure-platelet rich plasma and pure-platelet rich gel

Variable

Blood component

 

Plasma

P-PRP+NID

P-PRG

PPP+NID

PPG

Horses younger than 5 years old (n=7)

     

TP (mg/mL)

42.0 (3.6)†

48.2 (7.1)

43.2 (5.3)

42.7 (5.5)†

41.4 (4.7)

TGF-β1 (pg/mL)

1124.0 (216.0)a

3584.0 (2044.0)b

3284.0 (2176.0)

1732.0 (844.0)

1456.0 (336.0)

TGF-β1 (pg/mg of TP)

26.8 (6.4)c

74.2 (42.6)d

72.4 (50.6)e

41.0 (16.8)

37.1 (6.9)

PDGF-BB (pg/mL)

106.7 (165.8)f,g

1417.0 (840.0)e

1585.0 (992.7)

494.9 (864.0)

677.6 (810.6)

PDGF-BB (pg/mg of TP)

2.4 (4.1)h,i

33.2 (12.1)†

34.5 (29.0)†

12.3 (21.3)

15.1 (20.1)

Horses between 5.1-10 years old (n=20)

     

PT (mg/mL)

47.1 (3.9)j

50.0 (6.0)e,i

46.4 (3.9)

47.2 (5.8)

45.9 (5.6)

TGF-β1 (pg/mL)

1054.0 (633.0)f,k

2890.0 (2048.0)b

2366.0 (1044.0)k,l

1560.0 (797.0)

1456.0 (593.0)

TGF-β1 (pg/mg of TP)

22.4 (14.5)f,k

56.7 (40.4)b

49.2 (31.5)k,l

31.3 (16.6)

30.5 (15.7)

PDGF-BB (pg/mL)

72.1 (77.4)m

1180.5 (810.9)b

1140.5 (599.8)b

454.8 (353.3)

513.9 (301.9)

PDGF-BB (pg/mg of TP)

1.5 (1.3)m

25.0 (14.1)b

24.4 (12.9)b

9.8 (9.9)

11.1 (6.8)

Horses older than 10.1 years old (n=13)

     

TP (mg/mL)

46.7 (4.7)

49.1 (8.2)

46.9 (4.2)

46.8 (2.2)

45.8 (3.4)

TGF-β1 (pg/mL)

1012.0 (426.0)d,f

2696.0 (1678.0)b,e

2264.0 (1196.0)

1592.0 (896.0)

1520.0 (806.0)

TGF-β1 (pg/mg of TP)

22.2 (8.9)e,n

55.9 (23.4)

48.4 (16.6)

33.9 (17.6)

35.1 (11.4)

PDGF-BB (pg/mL)

59.3 (131.7)m

1007.0 (630.6)b

1208.0 (624.3)b

523.6 (207.6)

562.5 (268.6)

PDGF-BB (pg/mg of TP)

1.2 (3.0)m

21.6 (13.1)l,o

25.7 (16.4)b

10.4 (5.5)

12.8 (6.2)

  1. Data are presented as mean (±s.d.).
  2. The initials like in Table 2. Letters denote SD for each independent age group and their respective blood components. a: SD (P<0.05) from P-PRP+NID and, P-PRG. b: SD (P<0.001) from PPP+NID and, PPG. c: SD (P<0.05) from the all blood components. d: SD (P<0.05) from PPP+NID and, PPG. e: SD (P<0.001) from PPG. f: SD (P<0.001) P-PRP+NID and, P-PRG. g: SD (P<0.003) from PPP+NID and, PPG. h: SD (P<0.001) from PRP+NID. i: SD (P<0.05) from P-PRG. j: SD (P<0.05) from P-PRP+NID. k: SD (P<0.05) from PPP+NID. l: SD (P<0.001) from PPG. m: SD (P<0.001) from the all blood components. n: SD (P<0.001) from P-PRP+NID, P-PRG and, PPP+NID. o: SD (P<0.001) from PPP+NID. †: variable SD (P<0.05) from horses between 5.-10 years old and horses older than 10.1 years old.