Table 1.

Summary of the mass detected in the synovial fluid samples of RA and OA patients by SELDI-TOF MS.

Sample number	ng/ml	MW (Da)		Δ To full length CCL18
RHEUMATOID ARTHRITIS PATIENTS
8	41.1	7644.0 + H	7614.5 + H	−185.4	−185.3
		7760.7 + H	7729.6 + H	−68.7	−70.2
		7829.4 + H	7799.8 + H
		8036.9 + H	8011.3 + H	+207.5	+211.5
385	389.5	7764.6 + H	7766.5 + H	−69.8	−73.0
		7834.4 + H	7839.5 + H
		8041.2 + H	8046.0 + H	+206.8	+206.5
402	92.01	7655.3 + H		−179.9
		7765.9 + H	7766.3 + H	−69.3	−72.2
		7835.2 + H	7838.5 + H
		8040.8 + H	8043.9 + H	+205.6	+205.4
2282	609.7	7747.9 + H	7739.8 + H	−72.4	−71.8
		7820.3 + H	7811.6 + H
		8029.1 + H	8026.9 + H	+208.8	+215.3
OSTEOARTHRITIS PATIENTS
669	54.0	7766.6 + H	7765.5 + H	−71.3	−71.2
		7837.9 + H	7836.7 + H
		8001.6 + H	7999.5 + H	+163.7	+162.8
		8046.6 + H	8042.8 + H	+208.7	+206.1
1201	58.7	7761.0 + H	7761.9 + H	−70.6	−70.1
		7831.6 + H	7832.0 + H
		7993.1 + H	7994.9 + H	+161.5	+162.9
		8034.7 + H	8036.7 + H	+203.1	+204.7
1573	37.0	7762.7 + H		−71.6
		7834.3 + H
		7996.9 + H		+162.6
		8040.6 + H		+206.3
2076	591.0	7719.5 + H		−72.4
		7791.9 + H
		8002.9 + H		+211.0

The concentration of CCL18 in each sample is indicated in ng/ml, as well as the mass obtained from each sample [MW (Da)] and the discrepancy of mass to full length CCL18 which is highlighted in bold (Δ to full length CCL18).