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Table 2 Thymosin β levels and frequency detection in different subgroups

From: Thymosin β4 and β10 in Sjögren’s syndrome: saliva proteomics and minor salivary glands expression

 4 10 4 sulfoxide
pSS 3.5 ± 3.1 (n = 8)a 0.2 ± 0.3 (n = 6) 1.6 ± 3.3 (n = 4)a
ss/SSc 0.7 ± 1.0 (n = 6)b 0.03 ± 0.05 (n = 3)a,b 0.2 ± 0.4 (n = 3)
ss/SLE 0.6 ± 0.4 (n = 7)b N/A (n = 1) N/A (n = 1)
ss/RA 1.2 ± 1.1 (n = 6) N/A (n = 1) N/A (n = 1)
SSc 0.3 ± 0.6 (n = 3)b N/A (n = 0)b N/A (n = 0)
SLE 0.1 ± 0.2 (n = 2)a,b N/A (n = 0)b N/A (n = 0)
RA 0.2 ± 0.4 (n = 3) N/A (n = 0)b N/A (n = 0)
HC 0.8 ± 0.6 (n = 9) N/A (n = 0)b N/A (n = 0)
  1. Abbreviations: pSS Primary Sjögren’s syndrome, ss Sicca syndrome, SSc Systemic sclerosis, SLE Systemic lupus erythematosus, RA Rheumatoid arthritis, HC Healthy control subjects, N/A Not applicable to the comparison between levels (as continuous variable) because of too few patients with detectable thymosins in the considered group
  2. Values are the mean ± SD protein levels in the extracted ion current area (×108). Values in parentheses are the number of subjects in whom the protein was identified
  3. a p ≤ 0.05 vs HC either in levels of thymosin β and/or in its presence
  4. b p ≤ 0.05 vs pSS either in thymosin β levels and/or in its presence