Polymorphisms in the interleukin-6 promoter region have been associated with diseases. In this study we investigated the 634G/C and 174G/C IL-6 promoter polymorphisms in three Brazilian ethnic groups. We verified that the allele frequencies of the two polymorphisms and haplotype frequencies varied significantly between the populations.
Gadelha, S R.; Alcantara, L C.; Costa, G C. S.; and Rios, D L.
"Ethnic Differences in the Distribution of Interleukin-6 Polymorphisms Among Three Brazilian Ethnic Groups,"
4, Article 8.
Available at: https://digitalcommons.wayne.edu/humbiol/vol77/iss4/8