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Original Article Genetic Association of Mitochondrial DNA Polymorphisms with Type 2 Diabetes Mellitus.
Tae Su Han, Jee Hye Choi, Jina Park, Kwang Ho Lee, Ae Ja Park
Diabetes & Metabolism Journal 2009;33(5):382-391
DOI: https://doi.org/10.4093/kdj.2009.33.5.382
Published online: October 1, 2009
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1Department of Laboratory Medicine, Chung-Ang University College of Medicine, Seoul, Korea. ajcp@unitel.co.kr
2Department of Life Science, Chung-Ang University College of Natural Science, Seoul, Korea.

BACKGROUND
Although many single nucleotide polymorphisms (SNPs) of mtDNA have been found to be associated with type 2 diabetes mellitus, the results of studies using different population samples and different methods are mixed. Therefore, we conducted a genetic association study of mtDNA SNPs and type 2 diabetes mellitus in a Korean sample and compared our results with those of studies conducted in other human populations. METHODS: A total of 298 blood samples from 147 type 2 diabetic patients and 151 normal controls were surveyed for SNPs via PCR directed sequencing. Sequencing analyses were performed using the SeqMan module of the DNASTAR program. The identified SNPs were compared to previously reported SNP lists on NCBI and V-mitoSNP. RESULTS: A total of 24 SNPs were identified in the MT-RNR2, MR-TL1 and MT-ND1 mtDNA genes in Korean type 2 diabetes mellitus patients and normal controls. The SNPs identified in the Korean sample were not closely associated with the type 2 diabetes mellitus phenotype, a significantly different result from those previously observed in European, Chinese and Japanese samples. Additionally, a haplotype and prevalence analysis could not detect any differences between the type 2 diabetes mellitus patients and normal controls. CONCLUSION: The 24 mtDNA SNPs were not associated with type 2 diabetes mellitus risk in our Korean sample. The results of the present study support the possibility that mtDNA SNPs have a differential effect on the risk of type 2 diabetes mellitus according to geographical origin.

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    Genetic Association of Mitochondrial DNA Polymorphisms with Type 2 Diabetes Mellitus.
    Korean Diabetes J. 2009;33(5):382-391.   Published online October 1, 2009
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Han TS, Choi JH, Park J, Lee KH, Park AJ. Genetic Association of Mitochondrial DNA Polymorphisms with Type 2 Diabetes Mellitus.. Diabetes Metab J. 2009;33(5):382-391.
DOI: https://doi.org/10.4093/kdj.2009.33.5.382.

Diabetes Metab J : Diabetes & Metabolism Journal