Genotypes carrying the A allele of GAS6 intron 8 SNP variant (rs8191974) increased from 26.2 ± 1.3 ng/mL in 33 AA ± AG controls compared to 33.1 ± 1.8 ng/mL in 31 SLE patients (P = 0.002), while there was no difference in the GG group (Figure 3). This evidence concerns the gene GAS6 and systemic lupus erythematosus.