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Table 2 IHC features of PsA and Abneg RA cohorts based on the achievement of MDA and DAS remission after 6 months follow-up

From: Differential synovial tissue biomarkers among psoriatic arthritis and rheumatoid factor/anti-citrulline antibody-negative rheumatoid arthritis

 

PsA cohort

Naive (N = 12)

p

MTX-IR (N = 22)

p 1

MDA (N = 6)

No MDA (N = 6)

MDA (N = 9)

No MDA (N = 13)

Follicular synovitis, n (%)

3 (50.0)

3 (50.0)

1.00

3 (33.3)

7 (53.8)

0.34

CD68 (L) (mean ± SD)

1.58 ± 0.80

2.42 ± 0.73

0.09

1.86 ± 0.90

2.0 ± 1.07

0.77

CD68 (SL) (mean ± SD)

1.25 ± 1.08

2.16 ± 0.61

0.13

1.77 ± 0.93

2.0 ± 1.07

0.54

CD21 (mean ± SD)

0.58 ± 0.92

0.92 ± 1.02

0.59

0.96 ± 0.80

0.33 ± 0.43

0.06

CD20 (mean ± SD)

0.83 ± 0.82

1.17 ± 0.93

0.56

1.19 ± 0.83

1.06 ± 0.40

0.64

CD3 (mean ± SD)

0.91 ± 0.33

1.99 ± 0.84

0.02

1.65 ± 0.77

2.11 ± 0.96

0.29

CD117 (mean ± SD)

1.16 ± 0.82

1.42 ± 0.49

0.62

1.12 ± 0.62

1.39 ± 0.61

0.32

CD138 (mean ± SD)

0.67 ± 0.75

1.25 ± 0.88

0.25

0.58 ± 0.64

0.61 ± 0.60

0.84

CD31+ vessels (mean ± SD)

32.50 ± 13.41

40.75 ± 6.84

0.39

22.81 ± 11.31

25.21 ± 13.06

0.58

 

Abneg RA cohort

Naive (N = 27)

p 2

MTX-IR (N = 28)

p 3

REM (N = 11)

No REM (N = 16)

REM (N = 11)

No REM (N = 17)

Follicular synovitis, n (%)

6 (46.2)

6 (42.6)

0.86

3 (27.3)

7 (41.2)

0.45

CD68 (L) (mean ± SD)

1.86 ± 0.82

2.23 ± 0.68

0.27

2.10 ± 0.51

1.97 ± 0.83

0.82

CD68 (SL) (mean ± SD)

0.92 ± 0.58

2.13 ± 0.55

< 0.001

1.35 ± 0.78

1.46 ± 0.76

0.66

CD21 (mean ± SD)

0.39 ± 0.74

0.65 ± 1.08

0.79

0.54 ± 0.79

0.77 ± 1.13

0.78

CD20 (mean ± SD)

1.64 ± 1.02

1.23 ± 0.78

0.26

1.46 ± 0.99

1.44 ± 0.83

0.85

CD3 (mean ± SD)

1.57 ± 0.95

1.57 ± 0.83

0.98

1.59 ± 0.89

1.47 ± 0.87

0.49

CD117 (mean ± SD)

0.57 ± 0.43

0.62 ± 0.46

0.79

0.77 ± 0.56

0.56 ± 0.43

0.28

CD138 (mean ± SD)

1.54 ± 0.99

1.77 ± 1.05

0.55

1.36 ± 1.07

1.62 ± 1.28

0.47

CD31+ vessels (mean ± SD)

35.64 ± 7.69

34.64 ± 6.89

0.54

22.35 ± 5.28

21.88 ± 5.78

0.52

  1. Data presented in italics have p < 0.05
  2. PsA psoriatic arthritis, Ab autoantibody, RA rheumatoid arthritis, MDA Minimal Disease Activity, REM remission, DAS Disease Activity Score, p naive PsA reaching MDA vs naive PsA not achieving MDA, p1 MTX-IR PsA reaching MDA vs MTX-IR PsA not achieving MDA, p2 naive ABneg RA reaching DAS remission vs naive ABneg RA not achieving DAS remission, p3 MTX-IR ABneg RA reaching DAS remission vs MTX-IR ABneg RA not achieving DAS remission, MTX-IR methotrexate inadequately responder