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Table 3 Cytokine measure geometric mean (±SD) results

From: Immune response development after vaccination of 1-day-old naïve pigs with a Porcine Reproductive and Respiratory Syndrome 1-based modified live virus vaccine

 

Treatment

Day of study

3

7

28

83

125 (DC-1)

132 (DC + 6)

IL-10

T01

ND

ND

   

4.8 ± 1.0 (1/5)

T02

ND

ND

   

5.2 ± 1.7 (1/8)

T03

ND

ND

   

10.1 ± 6.4 (2/8)

P value

T01 vs T02

     

NS

T01 vs T03

     

NS

T02 vs T03

     

NS

IL-8

T01

ND

ND

   

48.1 ± 22.9 (3/5)

T02

ND

ND

   

33.8 ± 12.7 (3/8)

T03

ND

ND

   

69.6 ± 26.2 (6/8)

P value

T01 vs T02

     

NS

T01 vs T03

     

NS

T02 vs T03

     

NS

IFN-α

T01

ND

1.9 ± 0.0 (1/5)

    

T02

9.8 ± 6.1 (10/10)

32.8 ± 11.8 (10/10)

    

T03

9.5 ± 9.7 (9/10)

14.1 ± 9.9 (10/10)

    

TNF-α

T01

ND

ND (1/5)a

ND

62.7 ± 7.6 (1/5)

ND

29.1 ± 1.5

T02

ND

ND

ND

ND (1/8)a

ND

41.9 ± 1.6 (1/8)

T03

ND

ND

ND

ND (2/8)a

ND

78.2 ± 2.9 (1/8)

P value

T01 vs T02

     

NS

T01 vs T03

     

NS

T02 vs T03

     

NS

IFN-γ

T01

  

1.6 ± 0.0 (5/5)

1.6 ± 0.0 (4/5)

0.0 ± 0.0 (3/4)

8.1 ± 0.5 (3/4)

T02

  

22.1 ± 1.1 (9/10)

80.5 ± 8.2 (8/8)

166.5 ± 7.1 (8/8)

133.5 ± 5.7 (8/8)

T03

  

51.3 ± 4.1 (8/9)

77.2 ± 8.2 (8/8)

102.2 ± 4.3 (8/8)

155.7 ± 6.6 (8/8)

P value

T01 vs T02

    

0.0003

0.0033

T01 vs T03

    

0.0108

0.0011

T02 vs T03

    

NS

NS

  1. aAlthough some pigs had values above the cut-off of the technique, the mean value was below the cut-off
  2. Results from IL-10, IL-8, IFN-α and TNF-α ELISA tests are expressed as pg/mL of serum. Results from IFN-γ ELISPOT are expressed as number of IFN-γ- secreting cells /5 × 105 PBMC. In brackets, the number of positive animals per treatment and time point. DC day of challenge, ND non-detectable (below limit of detection of the technique), NS non-significant; blank cell indicates not measured