Item
(µM/ml)

Control
n=20

All RA patients
 n=94

Non-erosive
RA patients
n=18

Erosive
RA patients
n=45

NO2-ser

1,30±0,11

2,46±0,33

1,76 ± 0,51

2,25 ± 0,42

NO3-ser

1,17±0,08

1,13±0,24

0,86 ± 0,43

0,99 ± 0,22

NO-ser

2,47±0,10

3,54±0,48*

2,62 ± 0,79

3,24 ± 0,55

NO2-m

1,12±0,31

9,19±1,25

6,42 ± 1,20*

9,95 ± 2,33*

NO3-m

0,58±0,09

15,06±3,01

17,05 ± 4,16*

17,97 ± 4,42*

NO-m

1,71±0,12

24,25±3,07*

23,47 ± 4,76*

27,92 ± 3,81*

NO2-sin

1,08±0,07

9,35±1,34*

7,00 ± 0,93*

8,20 ± 2,64*

NO3-sin

0,58±0,04

8,64±3,56

6,80 ± 1,20

18,03 ± 4,54*

NO-sin

1,66±0,11

17,99±3,41*

13,80 ± 1,21*

26,23 ± 3,78*◊

Note: n — number of patients in each group. * — differences from the control were significant at р<0.05
Table 2: Nitric oxide metabolites in rheumatoid arthritis patients (mean ± SEM).