IL10 and rheumatoid arthritis: According to meta-analyses, RA-associated alleles in Caucasians include –174G/C and –572G/C of the IL6 gene, rs1800896 in the IL10 gene, rs13151961 and rs6822844 located near the IL2 and IL21 genes, rs7530511 and rs11209026 in the IL23R gene, and some others.