[A study of interleukin-10 gene polymorphisms in Miao, Dong and Buyi ethnics of Guizhou].

Objective: To investigate allelic frequencies of interluekin-10 (IL-10) gene promoter in Miao, Dong and Buyi ethnics of Guizhou.

Methods: TaqMan MGB-based real-time PCR was used to determine the genotypes of IL-10 -819 and IL-10 -592 in 589 Miao, Dong and Buyi ethnics of Guizhou.

Results: The allelic frequency of IL-10 -819 in Miao ethnics was significantly different from those in Dong or Buyi ethnics. Allelic frequencies of IL-10 -592 in Miao ethnics was significantly different from those in Dong or Buyi ethnics. In Miao, Dong and Buyi ethnics, the distributions of genotype frequencies of IL-10 -819 and IL-10 -592 were statistically different from Han ethnics from Guizhou and Taiwan of China as well as South Koreans.

Conclusion: There is a heterogeneity in the frequencies of polymorphisms of IL-10 promoter among different ethnic groups.