Abstract
Background Haptoglobin (Hp) polymorphisms have been suggested to be associated with many pathological conditions including cardiovascular diseases, infectious diseases, and type 2 diabetes. Methods We examined the association between HP genotypes and type 2 diabetes or anthropometric and clinical features in 946 Mongolians. HP genotypes were determined by two methods, TaqMan-based real-time PCR and conventional PCR. Hp phenotyping was also performed by polyacrylamide gel electrophoresis and peroxidase staining in a few selected samples. Results The 2 HP genotyping methods showed consistent results in 943 of 946 samples. Three samples that showed different results in the 2 PCR methods were determined to be heterozygous for the Hp Johnson allele by phenotyping. We did not find any association between HP genotypes and type 2 diabetes or the anthropometric and clinical features examined in the population studied. Conclusions TaqMan-based HP genotyping is reliable and will be useful for high-throughput association studies. Further studies of large numbers of subjects and functional differences in Hp types are needed.
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