Table 2

Allele frequencies of the nine regulatory single nucleotide polymorphisms in extracellular matrix proteases

Gene
SNP
Allele
RA patients
Controls
OR
p
Sex-adjusted OR
Change in transcriptiona

MMP1
-1607 1G/2G
2G
47.8
48.2
0.98
0.8
0.96
Up
MMP2
-1306 C/T
T
24.5
20.3
1.27
0.01
1.27
Down
MMP3
-1171 6A/5A
5A
50.5
51.7
0.95
0.5
0.96
Up
MMP7
-181 A/G
G
43.8
45.3
0.94
0.4
0.95
Up

-153 C/T
T
5.0
5.1
0.99
0.9
0.98
Up
MMP9
-1562 C/T
T
14.3
13.6
1.05
0.6
1.02
Up
MMP13
-77 A/G
A
68.0
65.6
1.13
0.2
1.09
Up
PLAT
-7351 C/T
T
36.4
32.1
1.21
0.03
1.20
Down
PAI-1
-675 5G/4G
4G
47.6
46.8
1.03
0.7
1.05
Up

Frequency values for rheumatoid arthritis (RA) and controls are percentages.

aReported up- or downregulation of gene expression determined by the mentioned allele. MMP, matrix metalloproteinase; OR, odds ratio; PAI, plasminogen activator inhibitor; PLAT, plasminogen activator, tissue type; SNP, single nucleotide polymorphism.

Rodriguez-Lopez et al. Arthritis Research & Therapy 2006 8:R1   doi:10.1186/ar1849