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Table 1 Levels of cytokines in children with the periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis syndrome (PFAPA) and children with pneumonia (Pn)

From: Elevated levels of CXCL10 in the Periodic Fever, Aphthous stomatitis, Pharyngitis and cervical Adenitis syndrome (PFAPA) during and between febrile episodes; an indication of a persistent activation of the innate immune system

 

Pn-nf

p-value

PFAPA-nf

p-value

PFAPA-f

p-value

Pn-f

 

Pn-nf

 

PFAPA-f

 

PFAPA-f

 
 

vs

 

vs

 

vs

 
 

PFAPA-nf

 

PFAPA-nf

 

Pn-f

 
 

(n=10)

 

(n=21)

(n=13)

(n=14)

 

(n=14)

IL-1β

nd

0.004

2.5

ns

2.6

0.002

nd

(LoD: 0.8)

  

(0.1, 5.4)

 

(0.9, 5.1)

  

CXCL10

731.9

0.000

1762.5

.003

4787.2

0.002

1512.7

(LoD: 6.5)

(582.7, 1038.0)

 

(1305.6, 3401.0)

 

(2801.1, 7743.5)

 

(685.5, 3179.4)

IL-6

15.4

ns

11.2

.001

49.6

0.035

21.7

(LoD: 1.1)

(9.5, 23.7

 

(4.8, 19.0)

 

(21.1, 103.8)

 

(18.3, 29.7)

CCL4

70.5

ns

52.8

.019

63.0

ns

59.4

(LoD: 1.1)

(52.9, 83.6)

 

(30.3, 77.2)

 

(47.5, 93.4)

 

(44.7, 75.0)

IL-17

41.6

ns

17.4

ns

7.4

0.002

64.5

(LoD: 0.2)

(25.4, 135.7)

 

(0.7, 54.6)

 

(0.7, 29.5)

 

(26.6, 81.2)

CCL5

6878.3

0.017

3197.5

ns

3007.8

0.016

4856.7

(LoD: 1.2)

(4066.2, 7154.3)

 

(2200.8, 4694.1)

 

(1864.5, 4019.3)

 

(3028.0, 6916.8)

IL-1ra

234.0

ns

129.3

ns

121.5

0.002

249.3

(LoD: 1.4)

(116.4, 368.1)

 

(69.5, 196.8)

 

(95.7, 170.8)

 

(176.7, 328.9)

IL-2

17.6

0.010

nd

ns

nd

0.000

17.6

(LoD: 1.1)

(7.3, 29.9)

     

(9.2, 21.7)

IL-9

24.4

ns

4.0

ns

6.0

0.011

29.7

(LoD: 0.7)

(11.6, 77.5)

 

(0.6, 30.8)

 

(0.5, 17.7)

 

(15.3, 41.3)

CCL11

65.0

ns

20.8

ns

nd

0.007

59.3

(LoD: 14.6)

(10.4, 133.1)

 

(0.3, 71.6)

   

(14.7, 115.1)

FGF-2

35.9

ns

24.0

ns

26.4

0.044

44.7

(LoD: 6.8)

(24.5, 63.2)

 

(4.8, 47.7)

 

(14.1, 40.6)

 

(27.4, 55.7)

G-CSF

74.0

ns

92.0

ns

126.9

0.016

94.0

(LoD: 1.1)

(54.8, 103.4)

 

(61.6, 111.9)

 

(95.9, 169.0)

 

(55.6, 106.9)

CCL2

38.0

ns

36.1

ns

38.0

0.039

27.6

(LoD: 6.8)

(34.5, 41.9)

 

(26.2, 42.1)

 

(28.4, 54.5)

 

(19.2, 32.9)

CCL3

15.5

ns

3.0

ns

4.2

0.004

16.9

(LoD: 2.4)

(8.2, 21.5)

 

(0.2, 14.8)

 

(0.4, 7.0)

 

(13.6, 18.9)

PDGF-BB

1440.5

0.025

532.4

ns

406.0

0.004

1284.0

(LoD: 1.0)

(529.7, 1942.0)

 

(301.5, 910.1)

 

(263.2, 1093.6)

 

(1056.0, 2813.3)

CXCL8 (IL-8)

19.1

ns

20.1

ns

19.0

ns

24.3

(LoD: 0.5)

(12.7, 32.3)

 

(14.0, 29.9)

 

(15.6, 23.4)

 

(18.5, 29.1)

INF-γ

198.9

ns

279.4

ns

323.5

ns

226.6

(LoD: 19.3)

(125.3, 336.9)

 

(208.3, 418.9)

 

(235.3, 437.4)

 

(166.7, 306.3)

IL-4

5.7

ns

7.0

ns

6.8

ns

6.8

(LoD: 0.5)

(3.1, 8.2)

 

(4.9, 9.8)

 

(4.9, 9.4)

 

(4.4, 8.2)

IL-5

6.3

ns

5.7

ns

5.8

ns

12.0

(LoD: 0.8)

(1.8, 21.2)

 

(3.1, 9.4)

 

(4.5, 9.3)

 

(1.8, 18.3)

IL-7

19.9

ns

25.9

ns

25.4

ns

19.5

(LoD: 0.5)

(11.5, 26.3)

 

(19.1, 31.1)

 

(19.4, 29.6)

 

(12.5, 26.3)

IL-10

13.1

ns

6.5

ns

8.1

ns

8.3

(LoD: 0.9)

(1.6, 24.9)

 

(3.2, 13.7)

 

(4.3, 11.1)

 

(1.2, 16.8)

IL-12p70

46.1

ns

25.8

ns

24.5

ns

40.4

(LoD: 0.5)

(18.5, 89.5)

 

(12.2, 40.8)

 

(18.1, 33.4)

 

(14.2, 72.2)

IL-13

16.9

ns

10.1

ns

10.4

ns

13.3

(LoD: 2.1)

(8.3, 36.1)

 

(6.4, 17.5)

 

(7.6, 14.0)

 

(7.2, 21.9)

IL-15

nd

ns

nd

ns

nd

ns

nd

(LoD: 4.2)

       

GM-CSF

nd

ns

nd

ns

nd

ns

nd

(LoD: 4.5)

       

TNF-α

66.2

ns

67.1

ns

68.1

ns

82.5

(LoD: 3.0)

(40.6, 126.8)

 

(42.9, 101.6)

 

(56.3, 113.1)

 

(55.9, 116.2)

VEGF

43.2

ns

22.3

ns

30.6

ns

38.3

(LoD: 0.5)

(24.4, 70.0)

 

(9.2, 47.1)

 

(9.1, 43.4)

 

(21.7, 87.3)

  1. Values are given as pg/ml and presented as median (quartiles).
  2. Pn-nf: Children with pneumonia after complete remission.
  3. PFAPA-nf: Children with PFAPA between febrile episodes.
  4. PFAPA-f: Children with PFAPA during febrile episodes.
  5. Pn-f: Children with pneumonia shortly after admission.
  6. LoD: Limit of detection as stated by the manufacturer.
  7. ns: not significant.
  8. nd: not detectable.